AI audio signal sound field simulation ultrahigh-resolution time-sharing processing method and device based on intelligent terminal

Abstract

The invention provides an AI audio signal sound field simulation ultrahigh-resolution time-sharing processing method and device based on an intelligent terminal, and the method comprises the steps: obtaining an original audio signal of the intelligent terminal, and equally dividing the original audio signal into three paths of audio signals through a distributor; carrying out different degrees of delay on the first path of audio signal, the second path of audio signal and the third path of audio signal in the three paths of audio signals to generate direct sound, first reflected sound and second reflected sound; the direct sound, the first reflected sound and the second reflected sound are played in a time-sharing mode, and AI audio signal sound field simulation ultrahigh-resolution time-sharing processing of sound wave sharpening and theater reverberation sound effect sharing is completed. The problems that when an existing audio playing device is used for playing AI audio in an artificial intelligence scene, the imaging resolution, definition and sense of space are poor, the optimal listening requirements of multiple persons are difficult to meet, and hearing is prone to being damaged are solved.

Description

Technical Field

[0001] The present invention relates to the field of audio processing technology, and in particular to an ultra-high resolution time-sharing processing method and device for AI audio signal sound field simulation based on a smart terminal. Background Art

[0002] With the ultra-high-performance computers in the artificial intelligence scenario being able to automatically compose music according to interactive instructions, automatically perform multi-part virtual singing, automatically perform multi-instrument virtual performances, automatically call 128 high-precision independent audio tracks and move freely on the 360-degree 3D surround full virtual stage, the sound source can move up and down, and automatically edit and quickly generate dozens of AI audio tracks for selection, it has increasingly replaced the entertainment programs recorded on-site by real actors and performed in real scenes with traditional devices. Consumers have to abandon the existing traditional HiFi playback devices with low image resolution, poor clarity, and insufficient sense of space, and seek an ultra-high resolution time-sharing processing method and device for AI audio signal sound field simulation based on smart terminals.

[0003] As technology continues to advance, digital electronic products in smart terminals are also becoming flatter, and the available acoustic space is becoming thinner and smaller. The audio spatial frequency response curve measured at the head of a person in a small activity space is a spatial frequency response curve with large fluctuations that is difficult to adjust due to standing wave interference caused by strong sound reflections from the four walls. This will seriously damage the image resolution, clarity, sense of space and sound quality of the ultra-high resolution sound field in a small activity space.

[0004] For headphones with only one direct sound pressure field, users have to increase the loudness of the direct sound by more than 30 times, using the strong sound pressure of the direct sound pressure field to drive the cilia in the human cochlea to resonate and oscillate for nearly 30 milliseconds, replacing the missing 30 milliseconds of early reflected sound. However, this will simultaneously increase the hearing threshold of the human ear and reduce the dynamic range of the loudness of human hearing sounds, making it impossible to clearly distinguish the details of AI audio below the human hearing threshold. More importantly, the super-strong sound pressure of the direct sound pressure field of the headphones will cause permanent damage to the eardrum, cilia in the cochlea and the auditory nerve, causing consumers' hearing to decline rapidly. Summary of the invention

[0005] The present invention provides an ultra-high-resolution time-sharing processing method and device for AI audio signal sound field simulation based on a smart terminal, which is used to solve the problem that when using existing audio playback devices to play AI audio in artificial intelligence scenarios, the imaging resolution, clarity, and spatial sense are poor, which makes it difficult to meet the optimal listening needs of multiple people and easily causes hearing damage.

[0006] The present invention provides an AI audio signal sound field simulation ultra-high resolution time-sharing processing method based on an intelligent terminal, comprising: Acquire an original audio signal from the smart terminal, and divide the original audio signal into three audio signals through a distributor; Delaying the first audio signal, the second audio signal and the third audio signal of the three audio signals to different degrees respectively to generate a direct sound, a first reflected sound and a second reflected sound; The direct sound, the first reflected sound and the second reflected sound are played in a time-sharing manner to complete the AI ​​audio signal sound field simulation ultra-high resolution time-sharing processing that shares the sound wave sharpening with the theater reverberation sound effect.

[0007] According to a method for ultra-high resolution time-sharing processing of AI audio signal sound field simulation based on a smart terminal provided by the present invention, the original audio signal of the smart terminal is obtained and the original audio signal is evenly divided into three audio signals through a distributor, specifically including: The original audio signal of the smart terminal is obtained, and the original audio signal is evenly divided through a distributor to generate three identical audio signals, each of which has the same signal strength.

[0008] According to an AI audio signal sound field simulation ultra-high resolution time-sharing processing method based on a smart terminal provided by the present invention, a first audio signal, a second audio signal and a third audio signal in three audio signals are delayed to different degrees respectively to generate a direct sound, a first reflected sound and a second reflected sound, including: A direct sound audio signal of 2 to 5 kHz is filtered out from the first audio signal to generate a direct sound, and the direct sound is used as a zero-delay reference mixing sound source for the first reflected sound and the second reflected sound.

[0009] According to an AI audio signal sound field simulation ultra-high resolution time-sharing processing method based on a smart terminal provided by the present invention, a first audio signal, a second audio signal and a third audio signal in three audio signals are delayed to different degrees respectively to generate a direct sound, a first reflected sound and a second reflected sound, including: The second audio signal is delayed by 0.5 to 1 millisecond through a preset delay device to generate a first reflected sound, wherein the first reflected sound is an early reflected sound in the sound box. By simulating the early reflected sound in the sound box, sound wave sharpening is achieved.

[0010] According to an AI audio signal sound field simulation ultra-high resolution time-sharing processing method based on a smart terminal provided by the present invention, the second audio signal and the third audio signal of the three-channel audio signal are delayed to different degrees respectively, and the first audio signal, the second audio signal and the third audio signal of the three-channel audio signal are delayed to different degrees respectively to generate a direct sound, a first reflected sound and a second reflected sound, including: The third audio signal is delayed by 1 to 95 milliseconds through a preset delay device to generate a second reflected sound, wherein the second reflected sound is an early reflected sound. The theater reverberation sound is realized by simulating the early reflected sound.

[0011] According to an AI audio signal sound field simulation ultra-high resolution time-sharing processing method based on a smart terminal provided by the present invention, the direct sound, the first reflected sound, and the second reflected sound are mixed and played in time-sharing to complete the ultra-high resolution time-sharing processing of the audio signal, specifically including: The direct sound is amplified through a preset first digital signal processing amplifier circuit and connected to a preset direct sound speaker, the first reflected sound is amplified through a preset second digital signal processing amplifier circuit and connected to a preset early reflected sound speaker in the sound box, and the second reflected sound is amplified through a preset third digital signal processing amplifier circuit and connected to a preset early reflected sound speaker; The direct sound speaker, the early reflected sound speaker in the sound box and the sound played by the early reflected sound speaker are played in a time-sharing manner to complete the AI ​​audio signal sound field simulation ultra-high resolution time-sharing processing that shares the sound wave sharpening and the theater reverberation sound effect.

[0012] The present invention also provides an AI audio signal sound field simulation ultra-high resolution time-sharing processing device based on an intelligent terminal, the device comprising: The original signal acquisition module is used to acquire the original audio signal of the intelligent terminal and divide the original audio signal into three audio signals through a distributor; A delay module, used to delay the first audio signal, the second audio signal and the third audio signal of the three audio signals to different degrees respectively, to generate a direct sound, a first reflected sound and a second reflected sound; The DSP power amplifier module is used to play the direct sound, the first reflected sound and the second reflected sound in a time-sharing manner, and complete the AI ​​audio signal sound field simulation ultra-high resolution time-sharing processing that shares sound wave sharpening with theater reverberation sound effects.

[0013] According to an AI audio signal sound field simulation ultra-high resolution time-sharing processing device based on a smart terminal provided by the present invention, the original signal acquisition module is used to acquire the original audio signal of the smart terminal, and divide the original audio signal into a first audio signal, a second audio signal and a third audio signal through a preset distributor, wherein the third audio signal is a mono signal acquired from the original signal; The delay module is used to delay the first audio signal, the second audio signal and the third audio signal to different degrees to generate a direct sound, a first reflected sound and a second reflected sound; The DSP power amplifier module is used to play the direct sound, the first reflected sound and the second reflected sound in a time-sharing manner in the audio playback device of the smart terminal, and complete the ultra-high resolution time-sharing processing of the audio signal shared by the sound wave sharpening and the theater reverberation sound effect.

[0014] According to the present invention, an AI audio signal sound field simulation ultra-high resolution time-sharing processing device based on a smart terminal is provided, and the device includes: The original signal acquisition module is used to acquire the original audio signal of the smart terminal, and divide the original audio signal into a first audio signal, a second audio signal and a third audio signal through a preset distributor, wherein the third audio signal is a two-channel or multi-channel signal acquired from the original signal; The delay module is used to delay the first audio signal, the second audio signal and the third audio signal to different degrees to generate a direct sound, a first reflected sound and a second reflected sound; The DSP power amplifier module is used to play the direct sound, the first reflected sound and the second reflected sound in a time-sharing manner in the audio playback device of the smart terminal, and complete the ultra-high resolution time-sharing processing of the audio signal shared by the sound wave sharpening and the theater reverberation sound effect.

[0015] According to the present invention, an AI audio signal sound field simulation ultra-high resolution time-sharing processing device based on a smart terminal is provided, and the device includes: The original signal acquisition module is used to acquire the original audio signal of the smart terminal, and divide the original audio signal into a first audio signal and a second audio signal through a preset distributor; The delay module is used to delay the first audio signal and the second audio signal to different degrees to generate a direct sound and a first reflected sound; The DSP power amplifier module is used to play the direct sound and the first reflected sound in the audio playback device of the smart terminal in a time-sharing manner, thereby completing the ultra-high resolution time-sharing processing of the audio signal with sharpened sound waves.

[0016] The present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the method for ultra-high resolution time-sharing processing of audio signals of any of the smart terminals described above is implemented.

[0017] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the method for ultra-high resolution time-sharing processing of audio signals of a smart terminal as described in any one of the above is implemented.

[0018] The present invention also provides a computer program product, including a computer program, which, when executed by a processor, implements any of the above-mentioned methods for ultra-high resolution time-sharing processing of audio signals of a smart terminal.

[0019] The present invention provides a method and device for ultra-high resolution time-sharing processing of audio signals of smart terminals. By dividing the original audio signal of the smart terminal into multiple audio signals, the time-sharing playback can simulate the sound sharpening function and the theater reverberation sound effect after different degrees of delay, and there will be no noise interference between adjacent residents. In addition, by playing the original audio signal in time, the user's perceived loudness can be greatly improved without causing damage to his hearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a flow chart of an ultra-high resolution time-sharing processing method for AI audio signal sound field simulation of an intelligent terminal provided by the present invention.

[0022] Figure 2 The present invention provides a block diagram of the transmission circuit of the audio signal processor inside the intelligent terminal.

[0023] Figure 3 The invention discloses a circuit diagram of an audio signal processing and transmission circuit in a headrest type two-channel time-sharing speaker.

[0024] Figure 4 It is a schematic diagram of the time-sharing playback structure in the earphone provided by the present invention.

[0025] Figure 5 It is a module connection diagram of an ultra-high resolution time-sharing processing device for audio signal sound field simulation of an intelligent terminal AI provided by the present invention.

[0026] Figure 6 It is a structural schematic diagram of the electronic device provided by the present invention.

[0027] Reference numerals: 110: original signal acquisition module; 120: delay module; 130: DSP power amplifier module; 610: processor; 620: communication interface; 630: memory; 640: communication bus. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] By using the existing ordinary woofer and the bare mid-high frequency loudspeaker, it is possible to construct a 128-channel ultra-high resolution sound field for tablet phones, smart screens, displays, speakers, Star Flash optical fiber speakers and head-mounted displays, smart glasses, and Star Flash headphone products of smart terminals. At the same time, in order to meet the market demand for high-quality car audio, the present invention is required to surpass the sound effects of mid-to-high-end floor-standing speakers or professional monitoring headphones and professional monitoring speakers in a small activity space with a net height of 1.4 to 2.4 meters and an area of ​​2 to 40 square meters. In order to expand the best listening area of ​​the smart terminal, break the limitation that there can only be one emperor listening seat, and realize that all seats in the small activity space are emperor listening seats (best listening area); each emperor listening seat is required to have a personal exclusive 128-channel independent sound field and each sound field does not interfere with each other; the emperor listening seat is required to rotate 360 ​​degrees freely without affecting its stereo sound effect.

[0030] However, the audio spatial frequency response curve measured at the head of a person in a small activity space is a spatial frequency response curve with large fluctuations that is difficult to adjust due to standing wave interference caused by strong sound reflections from the four walls. This will seriously damage the image resolution, clarity, sense of space and sound quality of the ultra-high resolution sound field in a small activity space.

[0031] For headphones with only one direct sound pressure field, headphone users have to increase the loudness of the direct sound by more than 30 times, using the strong sound pressure of the direct sound pressure field to drive the cilia in the human cochlea to resonate and oscillate for nearly 30 milliseconds, replacing the missing 30 milliseconds of early reflected sound. However, this will simultaneously increase the hearing threshold of the human ear, reduce the dynamic range of the loudness of the human ear, and make it impossible to clearly distinguish the details of music below the human ear's hearing threshold. More importantly, the super-strong sound pressure of the headphone's direct sound pressure field will cause permanent damage to the eardrum, cilia in the cochlea, and the auditory nerve, causing consumers' hearing to decline rapidly.

[0032] Combine the following Figure 1-Figure 4 The present invention describes an AI audio signal sound field simulation ultra-high resolution time-sharing processing method based on a smart terminal, including: step 100, obtaining an original audio signal of the smart terminal, and dividing the original audio signal into three audio signals through a distributor.

[0033] In the present invention, the original audio signal of the intelligent terminal is obtained, and the original audio signal is evenly divided by a distributor to generate three identical audio signals, each of which has the same signal strength. Only the original two-channel or multi-channel audio signal is delayed for different times to simulate the direct sound, the early reflected sound in the speaker, and the early reflected sound.

[0034] Step 200: delay the first audio signal, the second audio signal and the third audio signal of the three audio signals to different degrees to generate direct sound, first reflected sound and second reflected sound.

[0035] In the present invention, multiple repeated time-sharing playback of sound is used to replace the original single playback; a 2-5KHz direct sound audio signal is filtered out from the original mono, two-channel or multi-channel audio signal, and used as a 2-5KHz direct sound sound field for playing a 0-delay reference, so as to quickly identify the direction of the sound of 128 independent audio tracks with ultra-high resolution; the early reflection sound in the sound box after the original mono, two-channel or multi-channel audio signal is delayed by 0.5-1 millisecond is used to simulate the sound wave sharpening function of the monitoring sound box, and the early reflection sound merged into a mono channel after the original audio signal is delayed by 1-95 milliseconds is used to simulate a hemispherical living room mode, or the two-channel or multi-channel early reflection sound of the two-channel or multi-channel original audio signal is directly delayed by 1-95 milliseconds to simulate a hemispherical immersive surround music home theater mode, so as to realize the monitoring of music details and the collection of theater reverberation sound effects.

[0036] Specifically, the delay time of the early reflected sound in the speaker of the same channel compared to the direct sound of the same channel measured at the human head is required to be within 0.5 to 1 millisecond; the delay time of the early reflected sound compared to the direct sound measured at the human head is required to be within 1 to 95 milliseconds.

[0037] In the present invention, a 1-way multi-channel audio signal distributor circuit, a 0.5-1 millisecond delay circuit, a 1-95 millisecond digital delay circuit, a direct sound audio signal DSP amplifier circuit, an early reflected sound audio signal DSP amplifier circuit in the speaker, an early reflected sound audio signal DSP amplifier circuit; a left channel or right channel or multi-channel mixing time-sharing sound speaker;.

[0038] Left channel or right channel or multi-channel mixing time-sharing sound speakers include: 1 direct sound speaker, at least 1 early reflection sound speaker unit in the sound box and at least 1 early reflection sound speaker unit; wherein the early reflection sound speaker unit in the same-channel sound box is closely installed around or at the rear end of the same-channel direct sound speaker; The circuit of the AI ​​audio signal sound field simulation time-sharing processing device of the intelligent terminal: The mono, bi-channel or multi-channel audio signal output interfaces of the audio decoder are respectively connected to the input ends of the corresponding 1-way multi-channel audio signal distributor circuits; the first output end of the 1-way multi-channel audio signal distributor circuit is connected to the direct sound audio signal DSP amplifier circuit; the output end of the direct sound audio signal DSP amplifier circuit is connected to the direct sound speaker in the mono, bi-channel or multi-channel mixed time-sharing sound speaker to play the direct sound; the second output end of the 1-way multi-channel audio signal distributor circuit is connected to the 0.5-1 millisecond delay circuit; the 0.5-1 millisecond delay circuit is connected to the early reflection sound audio signal DSP amplifier circuit in the speaker; the output end of the early reflection sound audio signal DSP amplifier circuit in the speaker is connected to the early reflection sound speaker unit in the speaker to play the early reflection sound in the speaker; the third output end of the audio signal 1-way multi-channel distributor circuit is connected to the 1-95 millisecond digital delay circuit; the 1-95 millisecond digital delay circuit is connected to the early reflection sound audio signal DSP amplifier circuit; the output end of the early reflection sound audio signal DSP amplifier circuit is connected to the early reflection sound speaker unit to play the early reflection sound.

[0039] Early reflection sound speaker unit and early reflection sound speaker unit in the sound box, each speaker unit can be composed of 2 speakers of the same specification connected in parallel; the left channel mixing time-sharing sound speaker and the right channel mixing time-sharing sound speaker can be connected or magnetically connected to form a two-channel time-sharing sound speaker; the audio signal time-sharing processing device circuit of the intelligent terminal can be integrated into a two-channel or multi-channel DSP time-sharing ultra-high resolution power amplifier dedicated integrated circuit, and the two-channel or multi-channel DSP time-sharing ultra-high resolution power amplifier dedicated integrated circuit can be used for the left channel mixing time-sharing sound speaker and the right channel mixing time-sharing sound speaker; the direct sound speaker, the early reflection sound speaker unit in the sound box and the early reflection sound speaker unit in the left channel mixing time-sharing sound speaker and the right channel mixing time-sharing sound speaker are connected respectively; the direct sound, the early reflection sound in the sound box and the early reflection sound are played.

[0040] Step 300: Play the direct sound, the first reflected sound, and the second reflected sound in a time-sharing manner to complete the AI ​​audio signal sound field simulation ultra-high resolution time-sharing processing that shares the sound wave sharpening with the theater reverberation sound effect.

[0041] The two-channel or multi-channel DSP time-sharing ultra-high resolution power amplifier dedicated integrated circuit can also be integrated into a mono-channel DSP time-sharing ultra-high resolution power amplifier dedicated integrated circuit.

[0042] In the present invention, the early reflection sound speaker unit in the two-channel time-sharing speaker can be transferred outside the two-channel time-sharing speaker to become a near-field headrest type two-channel time-sharing speaker for a single listening seat. Multiple headrest type two-channel time-sharing speakers can be installed inside multiple seat headrests in the same direction of a home theater or a car, and the loudness difference of the early reflection sound in the same-channel speaker and the early reflection sound and the direct sound of the same channel at 3,150Hz at the head of the person is adjusted to -3 to +3db. This constitutes an immersive surround music home theater mode of two-channel or multi-channel early reflection sound.

[0043] Multiple headrest-type two-channel time-sharing speakers can also be installed in the sofa or seat headrests in different directions in the living room or car, and adjust the direct sound, early reflected sound in the speaker, and the loudness of the early reflected sound. Make the loudness difference between the early reflected sound in the speaker at the head and the direct sound 3,150Hz to -3~+3db, and make the early reflected sound at the head lower than the direct sound 3,150Hz by -3~-9db. This constitutes the living room mode of monophonic early reflected sound.

[0044] Specifically, the present invention is an audio sub-device in the existing smart terminal's tablet phones, smart screens, displays, speakers, Star Flash fiber optic speakers and aerial imaging series of new products. It will also make the company's smart terminal head-mounted displays, smart glasses, and Star Flash headphones become ultra-high-resolution HiFi products. At the same time, they can be switched to ultra-high-resolution monitoring mode at any time, and the delay difference between early reflected sound and direct sound at the human head can be adjusted to 2 to 5 milliseconds at any time to enter the monitoring mode, while avoiding the side effect of self-media people excessively lengthening the duration of early reflected sound.

[0045] A 4-dimensional space is composed of a microsecond to millisecond time axis superimposed on the 3-dimensional space. The present invention is obtained after re-studying the basic research on the relationship between the sound field in the 4-dimensional space and human psychoacoustics (the sound fields involved in the present invention are all sound fields reorganized from direct sounds of equal loudness, early reflected sounds in the speaker box, and early reflected sounds in the above 4-dimensional space).

[0046] Since humans use a certain central voice recognition processing area in the brain to process the sound field of direct sound, humans mainly use the sound field of 2-5KHz direct sound within 0-0.5 milliseconds to quickly identify the direction of sound. For simplicity, in the present invention, the sound field of 2-5KHz direct sound within 0-0.5 milliseconds that can quickly identify the direction of 128 independent audio tracks newly discovered by psychoacoustics in a certain central voice recognition processing area of ​​the human brain is referred to as the Yuheng sound field.

[0047] Finite element analysis shows that the early reflected sound in the monitor speakers with an internal acoustic space of 1.3 to 10.3 liters is the direct sound from the closed monitor speakers, which is reflected by the five wall panels inside the speaker and then converges on the back of the speaker diaphragm, pushing the speaker diaphragm from the inside to the outside to play the early reflected sound in the speaker with a delay of 0.5 to 1 millisecond. When the edges of the direct sound wave and the early reflected sound wave in the speaker stimulate the same cluster of sensitive hair cells in the endolymph fluid in the cochlea twice in succession, the ear nerve will transmit the two bioelectric currents caused by the edges of the direct sound wave and the early reflected sound wave in the speaker with an interval of 0.5 to 1 millisecond to the brain. The left and right voice recognition processing areas of the human brain will perform a nonlinear gain combination and enhancement process of 1+1 far greater than 2 on these two bioelectric currents, forming a stronger sensory loudness, thereby realizing the sound wave sharpening function of the closed monitor speakers.

[0048] The early reflected sound in the speaker with a delay of 0.5 to 1 millisecond has a sound wave sharpening function. For simplicity, in the present invention, the sound wave sharpening function of the left and right voice recognition processing areas of the human brain newly discovered in psychoacoustics for the early reflected sound in the speaker with a delay of 0.5 to 1 millisecond is also referred to as the Yuheng sound wave sharpening function.

[0049] The present invention has discovered that the human brain will use 0-0.5 milliseconds of direct sound as the zero-delay benchmark. The left and right voice recognition and processing areas of the human brain will only appreciate the musical connotation of the early reflected sound, while a certain central voice recognition and processing area of ​​the human brain will no longer distinguish the specific direction of the early reflected sound delayed by 1-95 milliseconds. For example, in a small theater, people can accurately identify the direction of the direct sound on the stage in front, but cannot distinguish the reflection direction of each early reflected sound delayed by 1-95 milliseconds reflected from all directions. For simplicity, in the present invention, the suppression of the direction of the early reflected sound delayed by 1-95 milliseconds by a certain central voice recognition and processing area of ​​the human brain, which is newly discovered in psychoacoustics, is also referred to as constant sound direction suppression.

[0050] The present invention simulates the 2-5KHz constant sound field of mono, two-channel or multi-channel direct sound to improve the image resolution of distinguishing the sound position of 128 independent sound tracks. The constant sound wave sharpening function is realized by simulating the mixed sound field of the early reflected sound in the speaker delayed by 0.61 milliseconds and the zero-delay reference direct sound, which greatly improves the clarity of the ultra-high resolution sound field constructed with 128 independent sound tracks.

[0051] The early reflected sound delayed by 30 milliseconds can simulate a hemispherical hall with a height of 5.1 meters, an area of ​​82 square meters, and an acoustic space of 278 cubic meters. In the hall, the present invention uses the early reflected sound and direct sound played by the near-field headrest two-channel time-sharing speaker to build a personal 128-channel independent audio track sound field for each single listening seat. For simplicity, the above-mentioned single listening seat is referred to as Yuheng Listening Seat in the present invention.

[0052] Theoretically, it is allowed to place up to 9 identical independent sound fields within 1 square meter without interfering with each other. The central sound recognition and processing area of ​​the human brain will classify the same sound field 0.34 meters away into the early reflection sound range of 1 to 95 milliseconds due to an extra delay of 1 millisecond, resulting in the suppression of the Yu Heng sound direction. Therefore, there will be no acoustic interference between adjacent Yu Heng listening seats 0.34 meters apart, thus affecting the accurate positioning of the 128 independent sound tracks exclusive to individuals. On the Yu Heng listening seat, the direct sound with similar loudness, the early reflection sound in the speaker, and the early reflection sound instantly stimulated a large number of sensitive hair cells in the endolymph fluid in the cochlea three times in succession, and the ear nerves transmitted the three bioelectric currents to the brain one after another. The left and right voice recognition processing areas of the human brain will perform nonlinear gain enhancement on the combination of these three loudnesses. The biggest feature is that the nonlinear gain of the combination at high loudness is much higher than the nonlinear gain of the combination at low loudness. At the same time, the nonlinear gain of the treble and bass parts is much higher than the nonlinear gain of the middle part. The nonlinear gain of 1+1+1 is much greater than 3.

[0053] The automatic expansion function of the perceived loudness of the sound and the perceived loudness of the high and low parts can restore the compression of the sound loudness for music programs whose sound loudness and the high and low parts are limited and compressed on the Yuheng listening station, and at the same time expand the dynamic range of the high and low parts, greatly increasing the audience's feeling of being on the scene. After subjectively evaluating the loudness of the three combined sounds and the one-time playback as the same by human ears, the actual measured sound peak power and sound average power of the three combined sounds are much lower than the sound peak power and sound average power of the one-time playback, the transmission distance in the air is shorter, and the sound attenuation through the wall is greater, so the present invention can better solve the problem of the sound device disturbing the neighbors late at night.

[0054] The present invention can first put the smart screen, display, audio, and Star Flash fiber optic speaker of the smart terminal into a monophonic ultra-high resolution monitoring working mode, and then play the monophonic early reflection sound after all the above monophonic audio signals are delayed by 30 milliseconds in sequence to simulate the hemispherical living room mode, and can accommodate multiple sofas or car seats in its small activity space with multiple different directions and headrest-type two-channel time-sharing speakers installed in the headrest for direct sound and 0.61 millisecond delay for early reflection sound in the speaker, and adjust the direct sound, early reflection sound in the speaker, and early reflection sound loudness. Make the loudness difference between the early reflection sound in the speaker at the head and the direct sound 3,150Hz is -3 to +3db, and make the early reflection sound at the head lower than the direct sound 3,150Hz by -3 to -9db.

[0055] The living room mode can make multiple sofas placed in different directions or seats that rotate 360 ​​degrees in a small activity space achieve the listening effect of the Yuheng Listening Seat. At the same time, it also achieves the sound effect of the emperor's seat in the emperor's box on the second floor opposite the stage of the ancient royal theater, thus breaking the limitation that there can only be one emperor's listening seat.

[0056] The present invention can also first switch the smart screen, display, audio, and Star Flash fiber optic speaker of the smart terminal to a two-channel or multi-channel ultra-high resolution monitoring working mode with one click, and then play the two-channel or multi-channel early reflection sound after all the above two-channel or multi-channel audio signals are delayed by 30 milliseconds in sequence to simulate the hemispherical immersive surround music home theater mode. In its small activity space, multiple rows of seats with the same direction and headrest-type two-channel time-sharing speakers installed can be placed, and the loudness difference between the early reflection sound in the same-channel speaker and the early reflection sound and the direct sound of the same channel at 3,150Hz at the human head is adjusted to -3 to +3db.

[0057] The immersive surround music home theater mode enables all Yuheng listening seats in the same direction in a small event space to reproduce the user experience of immersive surround music that can only be heard at the band conductor's position in the middle of the stage. It also breaks the limitation that a home theater can only have one best listening seat.

[0058] When the present invention is used in headphones, the eardrum, cochlear cilia and auditory nerve only need to withstand very low pressure field sound pressure. Because the low-loudness direct sound, the early reflected sound in the speaker and the early reflected sound successively stimulate a large number of sensitive hair cells in the endolymph in the cochlea three times, the auditory nerve transmits the three low-level biocurrents generated to the brain one after another. The left and right voice recognition processing areas of the human brain then perform a nonlinear gain enhancement process of 1+1+1 far greater than 3 on the combination of these three low-level biocurrents to generate a sensory loudness that can only be corresponded to a higher level of biocurrent. This can fully meet the user's sensory pursuit of high sound quality and high loudness, while the eardrum, cochlear cilia and auditory nerve are still in a low-pressure field. The present invention can effectively protect the eardrum, cochlear cilia and auditory nerve of earphone consumers.

[0059] The present invention can solve the problem of insufficient loudness and call signal-to-noise ratio in a strong noise environment while maintaining the loudness of the tablet phone unchanged. Because the human ear only hears one environmental noise during the same period of time when hearing the enhanced psychological sensory loudness formed by the combination of three voices, the signal-to-noise ratio is at least three times higher than the psychological sensory loudness.

[0060] Under the premise of the same perceived loudness, the sound peak power and the sound average power of the present invention are much smaller than the sound peak power and the sound average power during one playback, so the call voice transmission distance in a low-noise environment is shorter and the side leakage is lighter.

[0061] The present invention can simultaneously meet the needs of users for ultra-high resolution imaging resolution, clarity, spatial sense, loudness, side leakage and call signal-to-noise ratio of the tablet phone sound field in both strong and low extreme noise environments.

[0062] A three-dimensional time domain frequency response curve diagram is formed by adding a time axis to the frequency response curve diagram. A simple and detailed description of the debugging method of the direct sound, the early reflected sound in the speaker box and the time-sharing sound-releasing device of the early reflected sound of the present invention: The time domain is 0 to 0.5 milliseconds, and the frequency is 38 to 15,000 Hz, which is mono, two-channel or multi-channel direct sound.

[0063] The frequency response curve of the direct sound field is 0db at 3,150Hz, and attenuates by 1 to 3db for every positive and negative 1 / 3 octave. The sound field of mono, two-channel or multi-channel direct sound is a direct sound with a same-channel zero-delay reference required for quickly identifying the direction of the sound source and simultaneously providing the mixing sound field of the same-channel speaker reflected sound and early reflected sound.

[0064] The mixed sound field of the early reflected sound and direct sound in the speaker in the time domain of 0.5 to 1 millisecond can simulate the sound wave sharpening function of a monitoring speaker with an acoustic space of 1.3 to 10.3 liters; the frequency range of the sound wave sharpening function of the present invention can easily cover the full audio frequency; the frequency response curve of the early reflected sound in the speaker takes 3,150Hz as 0db, and increases by 1 to 3db for each positive and negative 1 / 3 octave.

[0065] The mixed sound field of single-channel, two-channel or multi-channel early reflection sound and two-channel or multi-channel direct sound in the time domain of 1 to 95 milliseconds can simulate a hemispherical home theater with an acoustic space of 0.01 to 8,822 cubic meters. The frequency response curve of the early reflection sound takes 3,150Hz as 0db, and increases by 1 to 3db for each positive and negative 1 / 3 octave.

[0066] The early reflection sound in the speaker with a time domain of 0.5 to 95 milliseconds and the mixing of the early reflection sound and the direct sound with a zero-delay reference are the sound field for enjoying music; while the time domain of 95 to 250 milliseconds and the frequency of 38 to 15,000 Hz are the reflection sound. The reflection sound with a time domain of 95 to 250 milliseconds and the mixing of the direct sound with a zero-delay reference are the hollow echo that can only be felt in a large stadium.

[0067] The low frequency of the early reflected sound in the speaker is as low as 130Hz, and the low frequency of the early reflected sound is as low as 38Hz, which can fully meet the needs of audition; because it is no longer necessary to obtain the early reflected sound with a delay of 30 milliseconds through multiple sound reflections in a small activity space, there will be no standing wave interference and bass head-booming. The audio space frequency response curves measured by the present invention at multiple heads in a small space are all smooth curves, so it is suitable for use in small electric vehicles with multiple seats.

[0068] In order to avoid early reflection sound in the sound box and high-frequency and low-frequency power overload of the early reflection sound speaker, two speakers of the original specifications can be used in parallel. In this way, without increasing the thickness of the smart screen body, the maximum audio output power can be increased by more than 5 times through simple stacking, which completely solves the problem of insufficient loudness of smart screens and displays of ultra-large-screen smart terminals.

[0069] In a specific embodiment, the plan for modifying the V5 Max 110-inch smart screen using the present invention is as follows: A company's V5 Max 110-inch smart screen has 3.1.2 channels. The main circuit board of the smart screen is removed, and the left and right channel amplifiers on it are retained, and the original left and right channel speakers are connected to play direct sound.

[0070] After a 0.61 millisecond delay, the signal at the original left and right channel audio signal output ends is connected to the newly added early reflection sound amplifier in the two-channel speaker box, and then 4 new early reflection sound speakers in the speaker box (with the same specifications as the original left and right channel speakers of the smart screen) are added and installed on both sides of the direct sound speaker to play the early reflection sound in the two-channel speaker box.

[0071] After a 30-millisecond delay, the signal at the original left and right channel audio signal output ends is connected to the newly added two-channel early reflection sound amplifier, and then 4 new early reflection sound speakers (with the same specifications as the original left and right channel speakers of the smart screen) are added to play the two-channel early reflection sound.

[0072] Living room mode: Change the amplifier input of all speakers installed in the smart screen (including the center channel, bass channel, and horn channel installed in the smart screen) to the mono audio signal output interface of the audio fiber output component of the smart screen, and broadcast multi-point mono early reflection sound (a sofa or car seat that can accommodate multiple directions in its small activity space and installs a headrest-type two-channel time-sharing speaker in the headrest for direct sound and early reflection sound in the speaker with a delay of 0.61 milliseconds). And adjust the direct sound, early reflection sound in the speaker, and early reflection sound loudness. Make the loudness difference between the early reflection sound in the speaker at the head and the direct sound 3, 150Hz is -3 to +3db, and make the early reflection sound played by all speakers installed in the smart screen at the head lower than the direct sound 3, 150Hz by -3 to -9db.

[0073] Home theater mode: Change the input end of all speakers installed in the smart screen (including the center channel, bass channel, and horn channel installed in the original smart screen) to the two-channel or multi-channel audio signal output interface of the audio optical fiber output component of the smart screen, and broadcast multi-point two-channel or multi-channel early reflection sound (in its small activity space, it can accommodate multiple sofas or car seats with headrest-type two-channel time-sharing speakers in the same direction and direct sound and early reflection sound in the speaker with a delay of 0.61 milliseconds installed in the headrest). And adjust the loudness difference of the early reflection sound in the same-channel speaker and the early reflection sound and the direct sound of the same channel at 3,150Hz at the head to -3~+3db.

[0074] Adjust the audio and video synchronization of the smart screen, and adjust the delay difference between the early reflected sound and the direct sound of mono, two-channel or multi-channel at the human head to 30 milliseconds.

[0075] Adjust the audio and video synchronization of the smart screen, adjust the delay difference between the mono or multi-channel early reflected sound and the two-channel direct sound at the human head to 2 to 5 milliseconds, and enter the monitoring mode. At the same time, it can avoid the side effect of self-media people excessively lengthening the duration of early reflected sound.

[0076] According to the present invention, the direct sound, the early reflected sound in the speaker, and the DSP frequency response of the early reflected sound are adjusted, so that the tuning and listening of the smart screen modified machine can surpass the sound effects of imported mid-to-high-end floor speakers or professional monitoring headphones and professional monitoring speakers.

[0077] In another specific embodiment, the plan for modifying a company's tablet computer using the present invention is as follows: A company's audio and video flagship Matepad Pro tablet computer is equipped with four multi-drive array speaker groups, each of which is composed of one large-amplitude mid-bass array speaker and two tweeter array speakers. One group is installed on the left, right, top and bottom of the tablet computer to modify the verification machine of the present invention.

[0078] A 0.5-1 millisecond delay circuit is inserted before the amplifier of the upper array speaker group of the tablet computer, and a 1-95 millisecond digital delay circuit is inserted before the amplifier of the lower array speaker group of the upper array speaker Matepad Pro tablet computer. The lower array speaker group plays mono early reflection sound.

[0079] The early reflected sound in the speaker of the upper array speaker group playing a mono sound is -3 to -9db lower than the 3,150Hz sound measured at the head of the person when the left array speaker group or the right array speaker group plays a two-channel direct sound.

[0080] The early reflected sound played by the lower array speaker group in a single channel is -3 to -9 dB lower than the sound loudness of 3,150 Hz measured at the human head when the left array speaker group or the right array speaker group plays a two-channel direct sound.

[0081] According to the present invention, the direct sound, the early reflected sound in the sound box and the frequency response of the early reflected sound are adjusted.

[0082] In another embodiment, the modification method using a certain mobile phone is as follows: In this example, 10 speakers are placed in an area of ​​0.9 meters wide, 2.3 meters long, and 2.1 square meters.

[0083] This example is a two-channel immersive surround music home theater mode, which is 2.2 channels. It can also be regarded as a car audio verification machine.

[0084] This example uses a P20 Pro phone as the audio source, with a built-in music app platform, to listen to 192KHz / 243dbit tracks on the platform. The phone is connected to an external cx1993 decoder, which can decode up to 384KHz / 323dbit. It also has an independent AMP secondary amplifier chip MAX97220 built in, which has a thrust of 60miw, which is equal to the audio output power of the TV's 3.5mmAUX headphone.

[0085] This example uses a headrest-type two-channel time-sharing speaker, which is equipped with 4 1-inch 6-ohm 10-watt small oval speakers originally used in large-screen TVs. It is composed of 2 6.5-inch 3-ohm passive subwoofers and 2 5.25-inch 6-ohm passive two-way speakers, totaling 10 speakers. The two 1-inch 6-ohm 10-watt speakers on the left and right sides of the headrest-type two-channel time-sharing speaker near the outside play direct sound, and the two 1-inch 6-ohm 10-watt speakers in the middle of the headrest-type two-channel time-sharing speaker play early reflected sound in the speaker. The remaining two 6.5-inch 3-ohm passive subwoofers and two 5.25-inch 6-ohm passive two-way speakers, totaling 6 speakers, broadcast early reflected sound.

[0086] Place the mobile phone on the bedside table of the single bed. Install a headrest-type two-channel time-sharing speaker above the head. The two 1-inch 6-ohm 10-watt large-screen TV original small oval speakers near the left and right sides of the headrest-type two-channel time-sharing speaker play direct sound, and the two 1-inch 6-ohm 10-watt large-screen TV original small oval speakers in the middle of the headrest-type two-channel time-sharing speaker play early reflection sound in the speaker.

[0087] Two 5.25-inch 6-ohm passive two-way speakers are placed in the middle of the end of the bed, and two 6.5-inch 3-ohm passive subwoofers are placed on the left and right under the head of the bed to broadcast early reflected sounds.

[0088] The audio signal is led out from the 3.5mmAUX headphone audio output of the cx1993 decoder, and then converted into 3 parallel audio signals, and one of them is connected to a 2×15-watt direct sound amplifier. The output tap of the amplifier is a pillow-type two-channel time-sharing speaker close to the left and right 1-inch 6-ohm 10-watt large-screen TV original small oval speakers to play direct sound. Note that the direct sound speaker is only installed with a bracket, without a speaker and a large sound barrier. The low-frequency sound short circuit greatly reduces the amplitude of the bass and weakens the Doppler effect on the mid-frequency.

[0089] Another audio electrical signal is connected to an analog-to-digital audio converter that converts analog electrical signals into optical fiber signals, and then an optical fiber is used to introduce the optical signal into the digital-to-analog audio converter that converts optical fiber signals into analog electrical signals. The audio signal that has been delayed by 0.61 milliseconds after the above two transformations is connected to the early reflection sound amplifier in the 2×15-watt speaker box. The output tap of the amplifier is connected to two 1-inch 6-ohm 10-watt large-screen TV original small oval speakers installed in the middle of the pillow-type two-channel time-sharing speaker box to play the early reflection sound in the speaker box. The early reflection sound speaker in the speaker box can be equipped with a miniature bass reflex speaker and a large sound barrier.

[0090] The third audio signal is transmitted to the aptx LL coded Bluetooth receiving circuit via the aptx LL coded Bluetooth, and then connected to the 2×80W early reflection sound amplifier after a total delay of 29.1 milliseconds. The output of the amplifier is connected to two 6.5-inch 3-ohm passive subwoofers and two 5.25-inch 6-ohm passive two-way speakers, a total of six speakers, to play early reflection sound.

[0091] The direct sound with a time domain of 0~0.5 milliseconds and a frequency of 2,000~5,000Hz is used to quickly identify the direction of the sound source and provide the required zero-delay time reference signal for the early reflected sound in the speaker and the mixed sound field of the early reflected sound.

[0092] The frequency response curve of the direct sound constant field takes 3,150Hz as 0db, and attenuates 1~3db for each positive and negative 1 / 3 octave. However, within the attenuation range of 60db, the direct sound frequency response curve can still naturally extend to 38~15,000Hz. The frequency response curve of the direct sound constant field is adjusted once before leaving the factory.

[0093] The time domain is 0.5~1 millisecond, and the frequency is 38~15,000Hz, which is the early reflection sound in the speaker.

[0094] The mixed sound field of the early reflected sound in the speaker with a delay of 0.61 milliseconds and the direct sound with 0 delay time can simulate the acoustic space of a 2.3-liter monitoring speaker.

[0095] The time domain 1~95 milliseconds and frequency 38~15,000Hz are early reflection sounds. The mixed sound field of the early reflection sound with a delay of 30 milliseconds and the direct sound with 0 delay time can simulate a hemispherical home theater with a height of 5.1 meters, an area of ​​82 square meters, and an acoustic space of 278 cubic meters.

[0096] The frequency response curve of the early reflected sound and early reflected sound in the speaker is 0db at 3,150Hz, and increases by 1~3db for each positive and negative 1 / 3 octave. The early reflected sound and early reflected sound frequency response curve in the speaker can be freely adjusted by the user according to personal preference.

[0097] The real sound field for human to appreciate music is created when the early reflection sound in the speaker with a delay of 0.61 milliseconds and the early reflection sound of 30 milliseconds are mixed with the direct sound with zero delay time.

[0098] Adjust the loudness difference between the early reflected sound in the same-channel speaker and the early reflected sound and the direct sound of the same-channel at 3,150Hz at the human head to -3~+3db.

[0099] The frequency response curve measured after the direct sound, the early reflected sound in the speaker and the superposition of the early reflected sound is still a conventional frequency response curve with a smooth plus or minus 3db from 20 to 20,000Hz, but there is less common standing wave interference and bass boom.

[0100] The early reflected sound delay in the speaker uses a product of a Chinese company to convert the audio analog signal into an optical fiber signal, and then convert the optical fiber signal into an audio analog signal. The function signal generator is used to output a positive pulse of 80Hz and a duty cycle of 4%. The optical fiber signal delay time calibrated by a dual-channel oscilloscope is 0.61 milliseconds. It can be replaced by a multi-channel linear optocoupler device with the same delay time.

[0101] In this example, the early reflected sound is transmitted from a company's aptx LL coded Bluetooth to the aptx LL coded Bluetooth receiving module, with a total delay of 30 milliseconds. It can be replaced by a dual-channel digital delay circuit with the same delay time.

[0102] The direction of the sound source is determined by the headrest-type two-channel time-sharing speaker that plays the direct sound and the early reflected sound in the speaker, while the balanced sound field of the room depends on the position of the speaker that broadcasts the early reflected sound.

[0103] Affected by the azimuth suppression effect of Yu Heng's early reflection sound, the human brain no longer distinguishes the azimuth of the early reflection sound delayed by 1 to 95 milliseconds, but only appreciates the musical connotation of the early reflection sound.

[0104] refer to Figure 5 The present invention also discloses an AI audio signal sound field simulation ultra-high resolution time-sharing processing device based on an intelligent terminal, the device comprising: The original signal acquisition module 110 is used to acquire the original audio signal of the smart terminal and divide the original audio signal into three audio signals through a distributor; The delay module 120 is used to generate a direct sound, a first reflected sound and a second reflected sound; The DSP amplifier module 130 is used to play the direct sound, the first reflected sound and the second reflected sound in a time-sharing manner, and complete the AI ​​audio signal sound field simulation ultra-high resolution time-sharing processing that shares sound wave sharpening with theater reverberation sound effects.

[0105] The device also includes: The original signal acquisition module is used to acquire the original audio signal of the smart terminal, and divide the original audio signal into a first audio signal, a second audio signal and a third audio signal through a preset distributor, wherein the third audio signal is a mono signal acquired from the original signal; The delay module is used to delay the first audio signal, the second audio signal and the third audio signal to different degrees to generate a direct sound, a first reflected sound and a second reflected sound; The DSP power amplifier module is used to play the direct sound, the first reflected sound and the second reflected sound in a time-sharing manner in the audio playback device of the smart terminal, and complete the ultra-high resolution time-sharing processing of the audio signal shared by the sound wave sharpening and the theater reverberation sound effect.

[0106] The device also includes: The original signal acquisition module is used to acquire the original audio signal of the smart terminal, and divide the original audio signal into a first audio signal, a second audio signal and a third audio signal through a preset distributor, wherein the third audio signal is a two-channel or multi-channel signal acquired from the original signal; The delay module is used to delay the first audio signal, the second audio signal and the third audio signal to different degrees to generate a direct sound, a first reflected sound and a second reflected sound; The DSP power amplifier module is used to play the direct sound, the first reflected sound and the second reflected sound in a time-sharing manner in the audio playback device of the smart terminal, and complete the ultra-high resolution time-sharing processing of the audio signal shared by the sound wave sharpening and the theater reverberation sound effect.

[0107] The device also includes: The original signal acquisition module is used to acquire the original audio signal of the smart terminal, and divide the original audio signal into a first audio signal and a second audio signal through a preset distributor; The delay module is used to delay the first audio signal and the second audio signal to different degrees to generate a direct sound and a first reflected sound; The DSP power amplifier module is used to play the direct sound and the first reflected sound in the audio playback device of the smart terminal in a time-sharing manner, thereby completing the ultra-high resolution time-sharing processing of the audio signal with sharpened sound waves.

[0108] In the present invention, multiple repeated time-sharing playback of sound is used to replace the original single playback; a 2-5KHz direct sound audio signal is filtered out from the original mono, two-channel or multi-channel audio signal, and the 2-5KHz direct sound sound field is used as a 0-delay reference for playing the 0-delay reference, so as to identify the position of the sound of 128 independent audio tracks with ultra-high resolution; the early reflection sound in the sound box after the original audio signal is delayed by 0.5-1 millisecond is used to simulate the sound wave sharpening function of the monitoring sound box, and the early reflection sound of the original audio signal after being delayed by 1-95 milliseconds is used to simulate the hemispherical living room mode, or the two-channel or multi-channel early reflection sound of the two-channel or multi-channel original audio signal is directly used to simulate the hemispherical immersive surround music home theater mode, so as to realize the monitoring of music details and the collection of theater reverberation sound effects.

[0109] Figure 6 An example of a physical structure diagram of an electronic device is shown in FIG. Figure 6As shown, the electronic device may include: a processor 610, a communication interface 620, a memory 630 and a communication bus 640, wherein the processor 610, the communication interface 620 and the memory 630 communicate with each other through the communication bus 640. The processor 610 may call the logic instructions in the memory 630 to execute the AI ​​audio signal sound field simulation ultra-high resolution time-sharing processing method based on the smart terminal, the method comprising: obtaining the original audio signal of the smart terminal, and dividing the original audio signal into three audio signals through a distributor; delaying the first audio signal, the second audio signal and the third audio signal in the three audio signals to different degrees respectively, generating direct sound, the first reflected sound and the second reflected sound; playing the direct sound, the first reflected sound and the second reflected sound in time-sharing, and completing the AI ​​audio signal sound field simulation ultra-high resolution time-sharing processing shared by sound wave sharpening and theater reverberation sound effects.

[0110] In addition, the logic instructions in the above-mentioned memory 630 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0111] On the other hand, the present invention also provides a computer program product, which includes a computer program, and the computer program can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the AI ​​audio signal sound field simulation ultra-high resolution time-sharing processing method based on the smart terminal provided by the above-mentioned methods. The method includes: obtaining the original audio signal of the smart terminal, and dividing the original audio signal into three audio signals through a distributor; delaying the first audio signal, the second audio signal and the third audio signal in the three audio signals to different degrees respectively to generate direct sound, a first reflected sound and a second reflected sound; playing the direct sound, the first reflected sound and the second reflected sound in time-sharing to complete the AI ​​audio signal sound field simulation ultra-high resolution time-sharing processing shared by sound wave sharpening and theater reverberation sound effects.

[0112] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to execute the AI ​​audio signal sound field simulation ultra-high resolution time-sharing processing method based on a smart terminal provided by the above-mentioned methods, the method comprising: obtaining an original audio signal of the smart terminal, and dividing the original audio signal into three audio signals through a distributor; delaying the first audio signal, the second audio signal and the third audio signal in the three audio signals to different degrees, respectively, to generate a direct sound, a first reflected sound and a second reflected sound; playing the direct sound, the first reflected sound and the second reflected sound in a time-sharing manner, and completing the AI ​​audio signal sound field simulation ultra-high resolution time-sharing processing that shares sound wave sharpening with theater reverberation sound effects.

[0113] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0114] Through the description of the above implementation modes, those skilled in the art can clearly understand that each implementation mode can be implemented by means of software plus a necessary general hardware platform, or of course by hardware. Based on such an understanding, the above technical solution can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a magnetic disk, an optical disk, etc., and includes a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0115] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for ultra-high resolution time-sharing processing of AI audio signal sound field simulation based on intelligent terminal, characterized in that: include: Acquire an original audio signal from the smart terminal, and divide the original audio signal into three audio signals through a distributor; Delaying the first audio signal, the second audio signal and the third audio signal of the three audio signals to different degrees respectively to generate a direct sound, a first reflected sound and a second reflected sound; The direct sound, the first reflected sound and the second reflected sound are played in a time-sharing manner to complete the AI ​​audio signal sound field simulation ultra-high resolution time-sharing processing that shares the sound wave sharpening with the theater reverberation sound effect.

2. The AI ​​audio signal sound field simulation ultra-high resolution time-sharing processing method based on intelligent terminal according to claim 1 is characterized in that: The obtaining of the original audio signal of the intelligent terminal and dividing the original audio signal into three audio signals by a distributor specifically includes: The original audio signal of the smart terminal is obtained, and the original audio signal is evenly divided through a distributor to generate three identical audio signals, each of which has the same signal strength.

3. The AI ​​audio signal sound field simulation ultra-high resolution time-sharing processing method based on intelligent terminal according to claim 1 is characterized in that: Delaying the first audio signal, the second audio signal and the third audio signal of the three audio signals to different degrees respectively to generate a direct sound, a first reflected sound and a second reflected sound, including: A direct sound audio signal of 2 to 5 kHz is filtered out from the first audio signal to generate a direct sound, and the direct sound is used as a zero-delay reference mixing sound source for the first reflected sound and the second reflected sound.

4. The AI ​​audio signal sound field simulation ultra-high resolution time-sharing processing method based on intelligent terminal according to claim 1 is characterized in that: Delaying the first audio signal, the second audio signal and the third audio signal of the three audio signals to different degrees respectively to generate a direct sound, a first reflected sound and a second reflected sound, including: The second audio signal is delayed by 0.5 to 1 millisecond through a preset delay device to generate a first reflected sound, wherein the first reflected sound is an early reflected sound in the sound box. By simulating the early reflected sound in the sound box, sound wave sharpening is achieved.

5. The AI ​​audio signal sound field simulation ultra-high resolution time-sharing processing method based on intelligent terminal according to claim 1 is characterized in that: Delaying the first audio signal, the second audio signal and the third audio signal of the three audio signals to different degrees respectively to generate a direct sound, a first reflected sound and a second reflected sound, including: The third audio signal is delayed by 1 to 95 milliseconds through a preset delay device to generate a second reflected sound, wherein the second reflected sound is an early reflected sound. By simulating the early reflected sound, a theater reverberation sound effect is achieved.

6. The AI ​​audio signal sound field simulation ultra-high resolution time-sharing processing method based on intelligent terminal according to claim 1 is characterized in that: The mixing and time-sharing of the direct sound, the first reflected sound and the second reflected sound to complete the ultra-high resolution time-sharing processing of the audio signal specifically includes: The direct sound is amplified through a preset first digital signal processing amplifier circuit and connected to a preset direct sound speaker, the first reflected sound is amplified through a preset second digital signal processing amplifier circuit and connected to a preset early reflected sound speaker in the sound box, and the second reflected sound is amplified through a preset third digital signal processing amplifier circuit and connected to a preset early reflected sound speaker; The direct sound speaker, the early reflected sound speaker in the sound box and the sound played by the early reflected sound speaker are played in a time-sharing manner to complete the AI ​​audio signal sound field simulation ultra-high resolution time-sharing processing that shares the sound wave sharpening and the theater reverberation sound effect.

7. An AI audio signal sound field simulation ultra-high resolution time-sharing processing device based on an intelligent terminal, characterized in that: The device comprises: The original signal acquisition module is used to acquire the original audio signal of the intelligent terminal and divide the original audio signal into three audio signals through a distributor; A delay module, used to delay the first audio signal, the second audio signal and the third audio signal of the three audio signals to different degrees respectively, to generate a direct sound, a first reflected sound and a second reflected sound; The DSP power amplifier module is used to play the direct sound, the first reflected sound and the second reflected sound in a time-sharing manner, and complete the AI ​​audio signal sound field simulation ultra-high resolution time-sharing processing that shares sound wave sharpening with theater reverberation sound effects.

8. The AI ​​audio signal sound field simulation ultra-high resolution time-sharing processing device based on intelligent terminal according to claim 7 is characterized in that: The device comprises: The original signal acquisition module is used to acquire the original audio signal of the smart terminal, and divide the original audio signal into a first audio signal, a second audio signal and a third audio signal through a preset distributor, wherein the third audio signal is a mono signal acquired from the original signal; The delay module is used to delay the first audio signal, the second audio signal and the third audio signal to different degrees to generate a direct sound, a first reflected sound and a second reflected sound; The DSP power amplifier module is used to play the direct sound, the first reflected sound and the second reflected sound in a time-sharing manner in the audio playback device of the smart terminal, and complete the ultra-high resolution time-sharing processing of the audio signal shared by the sound wave sharpening and the theater reverberation sound effect.

9. The AI ​​audio signal sound field simulation ultra-high resolution time-sharing processing device based on a smart terminal according to claim 7, characterized in that: The device comprises: The original signal acquisition module is used to acquire the original audio signal of the smart terminal, and divide the original audio signal into a first audio signal, a second audio signal and a third audio signal through a preset distributor, wherein the third audio signal is a two-channel or multi-channel signal acquired from the original signal; The delay module is used to delay the first audio signal, the second audio signal and the third audio signal to different degrees to generate a direct sound, a first reflected sound and a second reflected sound; The DSP power amplifier module is used to play the direct sound, the first reflected sound and the second reflected sound in a time-sharing manner in the audio playback device of the smart terminal, and complete the ultra-high resolution time-sharing processing of the audio signal shared by the sound wave sharpening and the theater reverberation sound effect.

10. The AI ​​audio signal sound field simulation ultra-high resolution time-sharing processing device based on intelligent terminal according to claim 7, characterized in that: The device comprises: The original signal acquisition module is used to acquire the original audio signal of the smart terminal, and divide the original audio signal into a first audio signal and a second audio signal through a preset distributor; The delay module is used to delay the first audio signal and the second audio signal to different degrees to generate a direct sound and a first reflected sound; The DSP power amplifier module is used to play the direct sound and the first reflected sound in the audio playback device of the smart terminal in a time-sharing manner, thereby completing the ultra-high resolution time-sharing processing of the audio signal with sharpened sound waves.

11. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the ultra-high resolution time-sharing processing method for AI audio signal sound field simulation based on a smart terminal is implemented as described in any one of claims 1 to 6.

12. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by the processor, the ultra-high resolution time-sharing processing method for AI audio signal sound field simulation based on a smart terminal is implemented as described in any one of claims 1 to 6.

13. A computer program product, comprising a computer program, characterized in that When the computer program is executed by the processor, the ultra-high resolution time-sharing processing method for AI audio signal sound field simulation based on a smart terminal is implemented as described in any one of claims 1 to 6.

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