101 results about "Acoustic effect" patented technology

The invention relates to the technical field of audio signal processing, and discloses a room sound correction method, device and equipment for audio equipment and a storage medium, which are used for improving the accuracy and correction effect of correction parameters and effectively improving the acoustic effect of the audio equipment in a room. The room sound correction method of the audio equipment comprises the following steps: acquiring response data of a room to a multi-band preset test signal, and extracting room acoustic data by adopting a time-frequency conjoint analysis method, the room acoustic data comprising frequency attenuation, reflection paths, phase shifts and reverberation time information of different bands; based on the room acoustic data, performing compensation processing by using preset microphone calibration data to obtain a calibrated frequency response curve; performing fitting calculation on a preset ideal frequency curve and the calibrated frequency response curve according to an optimization algorithm to obtain specific correction parameters of the room; and correspondingly adjusting the output of the audio equipment according to the correction parameter.

The invention discloses an Internet of Things alarm audio call scheduling method and system, and relates to the technical field of Internet of Things intelligent decision, and the method comprises the steps: receiving an alarm request message from an Internet of Things sensing terminal, and carrying out the alarm audio call scheduling according to a device identifier and a region code in the alarm request message; collecting and generating a multi-dimensional information report of real-time environment noise data, audio playing equipment state information and user state information; according to the multi-dimensional information report, generating a dynamic priority score of the alarm request message by querying a preset strategy library; and sorting the dynamic priority scores of the alarm request messages to be processed, and generating a preliminary scheduling strategy for suggesting playing equipment and broadcasting parameters for the alarm request message with the highest priority. According to the method, high-fidelity simulation is performed through the acoustic digital twin model to generate the intelligibility index report, the optimal strategy is selected based on the simulation result to generate the execution instruction, and the execution instruction is issued to the target audio equipment, so that full-process intelligent scheduling from multi-dimensional dynamic perception to acoustic effect optimization is realized.

The invention discloses a novel induction-type magneto-thermo-acoustic detection method for the conductivity of a supercapacitor, and relates to the technical field of nondestructive material detection.The method comprises the steps that a steady-state static magnetic field and a pulse alternating magnetic field are introduced to form a composite excitation field, and a magneto-acoustic effect and a thermo-acoustic effect are simultaneously and cooperatively excited in a solid-state electrode material; the magnetoacoustic-thermoacoustic coupling effect is formed, eddy current induced by a pulse alternating magnetic field in the material not only generates joule heat, but also generates a direct carrier of Lorentz force under the action of a steady-state static magnetic field, the two physical effects are derived from the same electromagnetic excitation process, but the mechanisms for generating acoustic signals are complementary to each other, so that the effect of the magnetoacoustic-thermoacoustic coupling is achieved. The two effects are coupled as a unified sound source item, a sound pressure wave equation is established, the equation describes a sound field excitation process under the combined action of a force source and a heat source, the coupling mechanism remarkably enhances the strength and information abundance of ultrasonic signals, and the inherent defect that a single thermoacoustic detection method is insensitive to a high-conductivity material is overcome.

The invention relates to the field of ultrasonic flaw detection, in particular to an ultrasonic nondestructive flaw detection system based on a photoacoustic effect, which comprises a photoacoustic excitation module used for emitting excitation laser to scan the surface of a detected object and inducing the photoacoustic effect to generate ultrasonic waves on the surface of the detected object through the excitation laser; the optical detection module comprises a detection laser and a four-quadrant detector, the detection laser is used for emitting detection laser, the detection laser is incident to a detection point on the surface of the detected object at a preset inclination angle, and the four-quadrant detector is used for receiving the detection laser reflected by the detection point; and the computer is connected with the four-quadrant detector, and is used for receiving the current signal output by the four-quadrant detector, calculating the light spot offset of the center of the detection light spot relative to the center of the four-quadrant detector, and calculating the internal damage position of the detected object by analyzing the time domain characteristic of the light spot offset. According to the invention, the defects of contact detection limitation and coherent light interference technology are overcome, the sensitivity and applicability are improved, and the cost is reduced.

The present disclosure relates to the technical field of audio control. Provided are a computer-implemented method for audio control, and an electronic device and a storage medium. The computer-implemented method for audio control comprises: on the basis of a specified measurement signal, performing acoustic effect testing on a target space, in order to obtain environmental response information, wherein the environmental response information comprises impulse response information and post-separation impulse response information; analyzing the environmental response information, in order to obtain acoustic characteristic information of the target space; on the basis of the acoustic characteristic information, performing compensation processing on audio to be processed, in order to obtain regulated audio; regulating gains of multiple channels corresponding to the regulated audio, in order to obtain re-regulated audio; and performing multi-channel collaborative optimization processing on the re-regulated audio, in order to obtain audio having a target effect. The method achieves precise compensation for spatial acoustic defects, resolves inter-channel crosstalk, improves the acoustic image localization and spatial perception, significantly improves the perceptual audio quality, and optimizes an output.

The invention discloses a quantitative evaluation model and system for underwater sonar detection efficiency by mesoscale vortexes, and belongs to the technical field of marine acoustic detection. The method comprises the following steps: acquiring marine environment data; identifying vortex types (cold vortex / warm vortex / mixed vortex), positions, radiuses R and amplitudes A based on a velocity gradient method of optimized parameters and a deep learning model; utilizing an ROMS numerical mode to simulate a vortex three-dimensional thermohaline structure; generating a sound velocity disturbance coefficient in combination with a Wilson sound velocity model and the vortex amplitude A; calculating propagation loss PL (z) through a Bellhop sound field model; an acoustic detection efficiency index ADEI is constructed; and outputting the detection probability matrix. According to the method, the technical bottleneck that a traditional model cannot dynamically couple the vortex acoustic effect and the detection probability is solved, full-process automatic evaluation is realized, and a sonar deployment strategy is remarkably optimized.

The invention discloses a sound effect optimization method, system and equipment based on an adaptive algorithm, and relates to the technical field of stage sound equipment, and the method comprises the steps: obtaining stage three-dimensional sound field topological parameters, and constructing a reference sound field model through combining a preset sound equipment parameter table; obtaining audio source characteristic information, and generating a first optimized sound effect model according to the reference sound field model and the audio source characteristic information; generating a second optimized sound effect model through an acoustic compensation algorithm according to the reference sound field model and the first optimized sound effect model; based on the first sound effect optimization model and the second sound effect optimization model, triggering an adaptive regulation and control instruction, the adaptive regulation and control instruction comprising a sound field calibration instruction and a sound effect optimization instruction; the invention provides the stage sound equipment capable of dynamically optimizing the sound effect according to the site change.

The utility model discloses a lamp with a sound box. The lamp comprises a lampshade, a radiator, a light source, a loudspeaker and a rear sound cavity, the radiator is arranged in the lampshade, and the interior of the radiator is hollow; the plurality of light sources are arranged on the outer side of the radiator; the loudspeaker is arranged at one end of the radiator, and the loudspeaker is communicated with the interior of the radiator, so that the rear sound cavity is formed in the radiator. The light source is arranged on the outer side of the radiator, the interior of the radiator is hollow, the loudspeaker is arranged at one end of the radiator, the loudspeaker is communicated with the interior of the radiator, and the internal space of the radiator can serve as a rear sound cavity of the loudspeaker. The lamp has the sound playing function, meanwhile, the internal space of the radiator is effectively utilized, the radiator can play a role in radiating the light source and improving the acoustic effect, multiple purposes are achieved, the space in the lampshade is saved, and the cost can be saved.

The invention provides a puncture guide wire with foresight detection and penetration functions and an intelligent intervention system, and belongs to the technical field of medical minimally invasive intervention instruments. The energy conversion assembly is innovatively integrated at the head end of the puncture guide wire, and the dual functions of A-type ultrasonic foresight detection and ablation are achieved through electric or optical path driving. The system supports two implementation modes: in an electroacoustic mode, a piezoelectric micro-electro-mechanical system is used for realizing ultrasonic transceiving and ablation; in the opto-acoustic mode, ultrasonic waves are generated by utilizing the opto-acoustic effect of the optical fiber, echoes are detected by utilizing optical interference, and ablation is performed by utilizing high-energy laser or ultrasonic waves. According to the invention, blood vessel, heart and occlusion lesions are identified based on a waveform fingerprint algorithm of time domain echoes, and a high-energy mode can be dynamically switched to assist in penetrating tissues. The problems that in an existing minimally invasive interventional operation, in-vitro image guiding precision is insufficient, a traditional IVUS / ICE catheter is too large in size and high in cost, and a traditional guide wire lacks active detection and auxiliary penetrating capacity when facing complex lesions are solved.

The utility model discloses an easily spliced wood-wool acoustic board for automotive trim, which comprises two board body components 1 and a board body component 2, the two board body components 1 are spliced together, the board body component 2 is spliced with one of the board body components 1, the board body component 1 comprises two side boards 1, a middle board 1 and two wall boards 1, and the two side boards 1 are spliced together. The two first side plates are connected to the two sides of the first middle plate in a clamped mode respectively, one ends of the two first wall plates are connected to one sides of the two first side plates in a clamped mode, and the second plate body assembly comprises a second middle plate, two second side plates and two second wall plates. The boards applied to the first board body assembly and the second board body assembly are wood-wool sound-absorbing boards, sound reflection and echoes can be effectively reduced, the acoustic effect of space is improved, the environment in a vehicle is quiet and comfortable, the performance of a sound system can be improved, noise and resonance are reduced, the overall sound quality is improved, meanwhile, the materials belong to environment-friendly materials, and the cost is low. The weight is light, too much burden cannot be added to the vehicle, and the device is suitable for various vehicle types.

The application discloses a KTV system rear surround setting method and device, a terminal and a medium. The method comprises the following steps: acquiring rear surround device static parameters, box environment data, box acoustic data and customer preference data; determining a target position of the rear surround device in the box based on the rear surround device static parameters, the box environment data and the box acoustic data; determining a target adjustment parameter combination corresponding to the rear surround device based on the rear surround device static parameters, the box acoustic data and the customer preference data; processing the rear surround device based on the target adjustment parameter combination, and placing the rear surround device at the target position. The application aims to achieve the optimal acoustic effect of the rear surround device of the KTV system in the box, and ensure that the acoustic effect of the rear surround device meets the preferences of customers in the box.

A performance analysis method is realized by a computer and includes acquiring a time series of input data representing played pitch that is played, inputting the acquired time series of input data into an estimation model that has learned a relationship between a plurality of items of training input data representing pitch and a plurality of items of training output data representing an acoustic effect to be added to sound having the pitch, and generating a time series of output data for controlling an acoustic effect to be added to sound having the played pitch represented by the acquired time series of input data.

The embodiment of the utility model relates to the display technology, in particular to display equipment. The display device comprises the display panel, the backlight assembly and the exciter, the exciter drives the display panel to vibrate and produce sound through the cavity between the backlight assembly and the display panel, the acoustic effect is good, and sound and picture integration is easy to achieve. The actuator of the exciter easily generates a large amount of heat due to reciprocating vibration, the damper is arranged to transfer the heat generated by vibration of the exciter to the side deviating from the vibration output end of the exciter, and a gap is formed between the damper and the backlight assembly; the heat generated by vibration of the exciter can be dissipated through air and also can be dissipated through the damper, so that the temperature of the actuating piece is reduced, the influence of local temperature on the image display quality is reduced, and the image display quality of the display equipment is improved.

The utility model discloses a kind of decompression telescopic data lines, traditional acoustic effect structure is centrally arranged at the top of turntable, so it needs to reserve space between the inner top wall of traditional shell and turntable, the utility model makes the inner top wall between turntable and shell no longer needs to reserve space by the way of accommodating groove cooperation moving piece, thereby reduce the thickness of finished product, effectively reduce the volume of finished product, become more portable.

A stringed musical instrument includes a musical instrument body configured such that a string is attached thereto. The musical instrument also includes a pickup configured to detect vibration of the string and output a string vibration signal according to the vibration. The musical instrument also includes a detection sensor that is attached to the musical instrument body and configured to output a detection signal according to a force applied to the musical instrument body. The musical instrument also includes a controller that is attached to the musical instrument body, and is configured to output, based on the detection signal, a control signal configured to control an operation of an effector configured to impart an effect to the string vibration signal.

The present invention relates to a photo-acoustic spectroscopy gas cell designed for the identification of gases. The system comprises a gas chamber for containing a gas sample and a light receiving portion that receives excitation light capable of inducing a photo-acoustic effect in the contained gas. A cantilever is mounted at / within the gas chamber. The cantilever is specifically adapted with resonance characteristics that enable it to resonate in response to the photo-acoustic excitation generated within the gas cell. A measurement unit within the system is configured to analyze the response of the cantilever to the photo-acoustic effect, thereby determining the identification of the gas based on this response. This invention provides a precise and reliable way for gas analysis and identification

This application provides a loudspeaker and an electronic device. The loudspeaker includes a housing; a vibration assembly including a diaphragm and a diaphragm drive coil connected to the diaphragm; a magnetic circuit assembly and a drive assembly. The magnetic circuit assembly has a gap, and the diaphragm drive coil is opposite to the gap. The magnetic circuit assembly drives the vibration assembly to vibrate in the receiving cavity, and the drive assembly drives the magnetic circuit assembly to vibrate with the vibration assembly, thereby improving the linearity of the vibration of the diaphragm drive coil and the acoustic effect of the loudspeaker.

The present invention belongs to the technical field of electroacoustics in electronics, and relates to an audio system formed by a speaker-enclosure planar array, and a preparation method for the audio system. Different from the prior art, the present invention uses a plurality of small / -micro-aperture speakers to form a special planar array audio device, such that by using the plurality of small- / micro-aperture speakers, audio signals with frequencies of 20-120 Hz or even higher, which are typically cut off in small-aperture speaker systems, are caused, by means of synchronous superposition operation, to output powerful, clear and pure bass sound waves. Moreover, an algorithm for a linear digital filter is used to perform frequency division and surround sound processing on digital audio signals of the speakers without generating a phase shift. Therefore, a series of functional defects in conventional large-aperture subwoofers are overcome, thereby enabling the planar-array audio system to achieve a surround sound effect in a three-dimensional or two-dimensional space.

Provide a system. 【Solution means】 Means for collecting information on competitive events, Means for analyzing the structure of space based on the viewer's interest data and the situation of the event, Means for automatically generating space in a virtual environment based on the analysis results, Means for analyzing the opinions of viewers during the event and dynamically adjusting the staging of space, Means for proposing an optimal virtual environment based on the user's past viewing data and preferences, Means for automatically adjusting visual and acoustic effects by utilizing a generative AI model using prompt sentences, Means for providing the user with an experience of an individually configured virtual stadium through a smart device, A system including the above.

The present invention pertains to the enhancement of grand pianos with integrated video and audio features, all while preserving the piano's meticulously perfected mechanics and acoustics and its timeless and elegant appearance.

A filter is provided that can amplify and extend the bass frequency response of a speaker in an audio device. The filter can be space-efficient. The filter can be part of a device that does not necessarily have a large rear cavity and does not necessarily have ports and / or passive radiation. The low-frequency extension filter can, for example, be used with a smaller rear cavity while essentially simulating the acoustic effects of a much larger rear cavity. The low-frequency extension filter can include multiple acoustic paths, such as tubes, which can be wound along a tortuous path and can resemble a labyrinthine design. The tubes can be selected to resonate with a specific predetermined low-frequency channel. For example, these tubes can be approximately a quarter wavelength of the center of the corresponding frequency channel, or even slightly shorter.

1. Name of the design product: main body of acoustic board. 2. Use of the design product: for sound absorption and / or sound insulation to improve acoustic effect. 3. Design points of the design product: in shape. 4. Picture or photo best indicating the design points: design 1 perspective view. 5. Design 1 is designated as the basic design. 6. Other circumstances needing explanation: the part represented by the dotted line in the figure is not the part claimed by the design; the dashed line represents the boundary between the claimed part and other parts, which does not constitute part of the design; the reference figure is the overall or partial photo of the specific example of the design product.

The invention discloses a headphone and an ear muff structure thereof, and relates to the technical field of earphones. Each ear muff structure comprises an ear muff cover, a flexible ear muff shell and a flexible ear muff lining, one side of the ear muff cover forms an installation area used for being connected with the head beam, and one side, deviating from the installation area, of the ear muff cover forms a connection area and a containing area; the flexible earmuff shell is positioned on one side, deviating from the mounting area, of the earmuff cover; the flexible ear muff shell continuously extends from the outer ring end to the inner ring end to form an arc-shaped structure which is bent in the direction away from the ear muff cover, the outer ring end is connected with the connecting area, the inner ring end is arranged towards the containing area, the inner ring end and the containing area are distributed at intervals, and a main containing cavity is defined by the inner ring end and the containing area; the flexible earmuff lining is arranged on the side, facing the containing area, of the flexible earmuff shell, an auxiliary containing cavity communicated with the main containing cavity is defined by the flexible earmuff lining, the connecting area and the containing area, and the earmuff lining is provided with a breathable sound absorption structure capable of absorbing sound waves. According to the invention, not only can the wearing comfort be improved, but also the acoustic effect of the headphone can be improved.

The invention provides a controller, which can enable a sound device expanded in space to reach the ear of an operator from a sound generating part of a shell held and operated by a hand. The upper surface (11) of the housing (10) of a controller (1) used in video game and VR operation is provided with a main sound-generating unit (20), and the lower surface (12) is provided with a sub sound-generating unit (25). Effective sound reaches the ears of the operator from the main sound-generating unit (20) in the shortest time, and the effect sound reaches the operator from the sub-sound-generating unit (25) with a time difference. By generating a difference in transfer function between the sound emitted from the main sound-emitting unit (20) and the sound emitted from the sub-sound-emitting unit (25), a sound effect with a sense of expansion in space can be obtained.

The invention discloses electronic equipment which comprises a machine body and a supporting piece. The machine body is provided with a first surface, and the first surface is provided with a sound outlet hole. The supporting piece is arranged on the machine body and can move relative to the machine body to have a first state, and in the first state, the supporting piece protrudes out of the first surface. According to the technical scheme, the possibility that the sound outlet hole is blocked can be reduced, so that the acoustic effect of the electronic equipment is improved, and the use experience of a user on the electronic equipment is improved.

The embodiment of the utility model belongs to the technical field of display, and provides display equipment which comprises a display panel, a lamp panel and an exciter, and the vibration output end of the exciter is connected with the lamp panel to drive the lamp panel to vibrate; and the exciter drives the display panel to vibrate and produce sound through the gas in the cavity between the lamp panel and the display panel, so that the acoustic effect is good, and sound and picture integration is easy to realize. Besides, an actuating piece of the exciter easily generates a large amount of heat due to reciprocating vibration, the heat generated by vibration of the exciter is transmitted to one side deviating from the vibration output end of the exciter by arranging a damper, and a gap is formed between the damper and the backlight assembly; thus, heat generated by vibration of the exciter can be dissipated through air and also can be dissipated through the damper, the temperature of the actuating piece can be reduced, the influence of local temperature on the image display quality is reduced, and the image display quality of the display equipment is improved.

The application discloses a system for passive terminal communication, and belongs to the technical field of laser communication. The system comprises an optical-acoustic communication relay node module and a plurality of passive photoacoustic terminal modules. The optical-acoustic communication relay node module comprises a multi-channel encoder unit, an encoded laser unit, a listening laser unit, a beam control and tracking emission unit, a photoelectric detector unit and a decoding and communication exchange processing unit. The passive photoacoustic terminal module is composed of an optical-acoustic effect material. The application realizes bidirectional optical-acoustic communication between a plurality of passive terminals through the optical-acoustic communication relay node module. The application realizes networked, multi-user and real-time bidirectional communication between passive terminals while maintaining the advantages of no power supply and simple structure, solves the problems of multi-user access and relay forwarding in point-to-point optical-acoustic communication, and can be applied to the fields of non-electric environment, strong electromagnetic interference and secret communication.

The invention discloses a multi-mode fire early warning method and system, and relates to the technical field of industrial storage area fire early warning, the system collects temperature field distribution, particulate matter concentration and frequency spectrum signal data in real time by arranging a thermal infrared imager, a smoke sensor and an acoustic array microphone; performing time sequence frame difference and multi-frame mean filtering, calculating a thermal anomaly index and triggering smoke effect identification; adopting a sliding window difference and multi-point mean variance algorithm to extract smoke abnormal characteristics and trigger acoustic effect identification; based on the frequency spectrum signal, acoustic abnormal features are extracted, and cross-modal fusion judgment is triggered; and fusing the multi-modal abnormal indexes, calculating a fire comprehensive judgment index, and generating a corresponding early warning strategy according to a preset threshold value. According to the invention, efficient, accurate and real-time monitoring and response of the fire risk of the storage area are realized, the timeliness and reliability of fire early warning are improved, and a remarkable safety guarantee effect is achieved.

The utility model relates to a preceding-stage effector, belongs to the technical field of sound effect processing devices, and particularly relates to a preceding-stage effector capable of switching functions, which comprises a shell, a front panel is fixed on one side of the shell, and a mounting plate is arranged in the shell; according to the utility model, through the cooperation among the audio input interface, the audio output interface, the signal detection module, the mode switching module, the audio processing module and the microprocessor, audio processing parameters and functions can be automatically adjusted according to different use scenes, and through a built-in intelligent identification system and a preset mode, the audio processing parameters and functions can be automatically adjusted. The type of an input signal can be automatically detected, a corresponding mode is switched, and optimal sound effect processing is provided; through the arrangement of the mounting assembly, the movement of the mounting plate is conveniently controlled, so that when maintenance and cleaning are needed, the mounting plate is pulled out to be exposed outside, and the operation is convenient; the problems that an existing preceding-stage effector cannot conduct function switching and is inconvenient to clean and overhaul are solved.

This invention belongs to the field of indoor acoustic effects technology and discloses a sound reflector structure for indoor ceilings and its installation method. The sound reflector structure includes: a frame; a top plate; a spherical panel, with a first overlapping edge and a second overlapping edge forming an overlapping seam; the surface of the spherical panel has a water ripple texture to reflect and diffuse incoming sound waves; and a first filler material to fill the overlapping seam so that the spherical panel and the top plate fit together to enclose the frame; the spherical panel, the top plate, and the first filler material are all made of GRG material. This invention improves the sound field strength and reduces low-frequency absorption by designing the sound reflector with a unique water ripple texture and a specific curved surface calculated acoustically, and by using GRG material with superior acoustic performance. This improves the reverberation time and surround sound effect in the auditorium, achieving a balance between early and late reflections, thus realizing a purely natural sound environment.