537 results about "Sound generation" patented technology

A controller configured to control a sound producing module includes a volume controlling unit configured to determine a demodulation amplitude and a modulation amplitude corresponding to a target volume. The sound producing module comprises a driving circuit and an air-pulse generating device. The driving circuit generates a demodulation driving signal according to the demodulation amplitude and generates a modulation driving signal according to the modulation amplitude, so as to drive the air-pulse generating device. The air-pulse generating device produces sound via generating a plurality of air pulses at an ultrasonic pulse rate.

The invention discloses a sound production device and a sound production module, and relates to the technical field of electroacoustic transduction, the inner side of an inner folding ring of a first vibrating diaphragm assembly of a vibration system of the sound production device is connected with a central magnetic part, and a diaphragm and a second vibrating diaphragm assembly are sequentially arranged on one side, facing a magnetic conductive yoke, of the first vibrating diaphragm assembly; the outer periphery of the folding ring part of the second vibrating diaphragm assembly is connected with the shell, the first bending part of the second vibrating plate is connected with the inner edge of the diaphragm, and the outer edge of the diaphragm is connected with the shell, so that a sound production cavity communicated with the sound outlet hole of the shell is formed between the diaphragm and the second vibrating diaphragm assembly; two ends of the rigid connecting piece are respectively connected with the second vibrating diaphragm assembly and the voice coil, so that the voice coil drives the second vibrating diaphragm assembly to vibrate through the rigid connecting piece; wherein the effective vibration area Sd1 of the diaphragm is smaller than the effective vibration area Sd2 of the second diaphragm assembly, and the ratio of the Sd1 to the Sd2 is 1: 1.5-1: 3. According to the sound production device, the effective vibration area of the vibration system is increased, and the acoustic performance is improved.

A light sensor 19 is provided for detecting a position of a lever 14 (an intermediate position between an initial position and a terminal position of the lever 14) between an ON state and an OFF state of the lever 14, and a musical sound in accordance with the position of the lever 14 detected by the light sensor 19 is generated. That is, in each of the ON state of the lever 14, the OFF state of the lever 14, and the state where the lever 14 is therebetween, different musical sounds are generated when the head 6 is percussed. Therefore, compared with the conventional technique where musical sounds can only be generated based on the ON or OFF state of the lever 14, musical sounds of a greater variety can be generated.

Methods and apparatus are described herein related to improving the sound quality of a bone conduction speaker. The sound quality of the bone conduction speaker is adjusted in the sound generation, sound transferring, and sound receiving of the bone conduction speaker by designing vibration generation manners and vibration transfer structures.

An audio system receives sounds from a local area with a set of sensors. The audio system analyzes the sounds to identify an amount of background noise in the environment. The audio system may also identify target sound in the environment, such as voice from a nearby speaker, to reinforce. The amount of background noise is then used to adaptively set a level of reinforcement for the target sound. In low-noise environments, the target sound may be minimally, or not reinforced, while in high-noise environments a reinforcement sound signal may be generated with the target sound so that a transducer array may generate reinforcing sounds for the target sound and increase its contrast with the noise in the environment. By applying the reinforcement dynamically, the system automatically adjusts for different sounds and environments.

The invention discloses a sound generation method based on multiple modes, and belongs to the technical field of artificial intelligence and multimedia generation, and the method comprises the following steps: S1, multi-mode input: inputting multi-mode contents, including texts, videos, images, music and audios; s2, feature extraction; s3, feature alignment: additionally adding three corresponding small networks for the three extracted features, aligning the three extracted features in dimensions, and generating three aligned features; s4, feature splicing: splicing the three aligned features front and back, and inputting the spliced features together to generate a large model; s5, training a large model; s6, calculating a loss function; and S7, outputting audio or music. According to the method, multiple modes including texts, videos, images, music and audios serve as input, high-quality audios or music is generated in combination with the generation capacity of the large model, and due to the fact that the input modes are multiple modes, corresponding music or audios can be generated only by inputting one or more modes.

The invention relates to the technical field of singing synthesis, and discloses a personalized singing cloning system and matching method based on deep voiceprint feature matching, and the system comprises a user personality modeling module, a style modeling module, a semantic melody joint perception module, a singing synthesis module and an emotion consistency matching module. According to the method, personality and style vectors are generated by extracting voiceprint, emotion and sound production control features of a user, a song sound spectrogram is generated by using a diffusion model in combination with lyric semantics and melody structures, and finally the model is discriminated and optimized through emotion consistency. By extracting the voiceprint feature, the emotion expression feature and the sounding control feature of the user and fusing the features with the style control vector and the semantic melody information, the singing sound which meets the individuation requirement and is consistent in style can be generated, the defects of a singing sound synthesis model in individuation and style consistency expression in the prior art are overcome, and the user experience is improved. And more accurate personalized singing sound generation capability is provided.

Methods and apparatus are described herein related to improving the sound quality of a bone conduction speaker. The sound quality of the bone conduction speaker is adjusted in the sound generation, sound transferring, and sound receiving of the bone conduction speaker by designing vibration generation manners and vibration transfer structures.

A calibration method comprises adjusting an operating frequency of an air-pulse generating device, such that a sound pressure level (SPL) of the air-pulse generating device is within a specific range. The sound producing module comprises the air-pulse generating device configured to produce sound via generating a plurality of air pulses at a pulse rate corresponding to the operating frequency.

A sound control system includes a sound generating device disposed at a vehicle ceiling corresponding to a seat region of the vehicle and at a sound space formed within the vehicle to correspond to the seat region, and a sound processing circuit for providing a vibration driving signal to the sound generating device. The sound generating device vibrates an interior material of the vehicle ceiling based on the vibration driving signal.

A computer-implemented sound calibration method, a system and a storage medium are provided. A test audio is played by a subwoofer and a main speaker, transmitted audio is collected by an audio collection device at a primary listening position, a sound generation delay and a volume parameter difference are analyzed, and the subwoofer is calibrated based on of a frequency response curve of a scenario, so as to solve the problem in the related art where the user experience is adversely affected due to low sound calibration accuracy between the subwoofer and the main speaker.

A sound generation apparatus comprises a transducer, a driving apparatus, and a control circuit. The driving apparatus is connected to the transducer. The control circuit is electrically connected to the transducer and the driving apparatus. The control circuit is configured to drive a vibration member of the transducer to vibrate, and the control circuit is further configured to control the driving apparatus to drive the transducer to perform periodic motion. The transducer is disposed to emit a first sound wave to the outside while performing periodic motion.

Disclosed are an audio device and an intelligent wearable device. The audio device includes: a housing in which a first sound generation unit and a second sound generation unit are disposed, each of the first sound generation unit and the second sound generation unit has a front cavity and a rear cavity separated from each other, and the housing is provided with a first front sound hole in communication with the front cavity of the first sound generation unit, a second front sound hole in communication with the front cavity of the second sound generation unit, and a rear sound hole in communication with the rear cavity of the second sound generation unit. The audio device further includes a sliding baffle, wherein the sliding baffle is slidable between a first position and a second position with respect to the housing, and the sliding baffle is provided with a hole.

A road vehicle having: a bottom wall, which, in use, faces a road surface; a body, which delimits a passenger compartment; and an aerodynamic sound generation system, which is configured to generate sounds making use of the head wind, namely the movement of air relative to the road vehicle generated by the forward movement of the road vehicle.

For example, one object is to realize more excellent sound field correction. An information processing apparatus includes a control unit that converts a transfer characteristic of a sound pressure from a speaker device to a listening position into an energy characteristic, and calculates a correction parameter for correcting a sound field generated by an output sound of the speaker device using the converted energy characteristic.

The invention discloses an active noise reduction control system and method for a smart phone. The active noise reduction control system comprises an environment sound acquisition module, a motion state sensing module, a deep learning processing module, a noise reduction signal generation module, a noise reduction execution module, a user preference setting module, a scene recognition module and a power management module. The environment sound collection module collects signals in an omnibearing mode through a multi-microphone space array, data quality is guaranteed through broadband response and a high sampling rate, the motion state sensing module monitors mobile phone motion parameters in real time and provides a basis for noise reduction strategy adjustment, the deep learning processing module adopts a mixed model architecture to be combined with GPU acceleration, noise characteristics are accurately analyzed, and noise reduction is achieved. The noise reduction signal generation module can generate an adaptive noise reduction signal according to an analysis result, and the noise reduction execution module performs active feedback control and a multi-mode sounding strategy; the precision, adaptability and intelligent level of noise reduction are remarkably improved, and the auditory experience of a user using a mobile phone in different scenes is greatly improved.

The present invention relates to the technical field of electro-acoustic transduction, and disclosed in the present invention are a sound generation unit and an electronic device. The sound generation unit comprises a housing and a magnetic circuit system, wherein at least part of the housing is formed of a cobalt alloy material; the magnetic circuit system is arranged in the housing and comprises a magnetic yoke, a central magnetic portion and a peripheral magnetic portion; the central magnetic portion and the peripheral magnetic portion are both arranged in the magnetic yoke, and the peripheral magnetic portion is arranged on an outer side of the central magnetic portion; and the peripheral magnetic portion is connected to the housing. The present invention aims to provide a sound generation unit that meets the requirements of slim design and acoustic performance. The sound generation unit effectively increases the magnetic induction intensity of the magnetic circuit system while having the slim design, thereby improving the BL value, and meeting the requirements of the acoustic performance of the sound generation unit.

Video data is processed with a machine-learned generative audiovisual synchrony model to obtain audio data, wherein the video data depicts occurrence of a sound-producing event at a particular time, wherein the audio data comprises an event sound predicted to be produced by the occurrence of the sound-producing event, and wherein occurrence of the event sound within the audio data is synchronized to the particular time at which the sound-producing event is depicted to occur by the video data. An optimization function is evaluated that evaluates at least the event sound. One or more parameters of the machine-learned generative audiovisual synchrony model are adjusted based on the optimization function.

The invention discloses an anti-howling method based on an RISC processor, and the method comprises the steps: S1, obtaining an audio signal, and converting the audio signal from a time domain signal to a frequency domain signal through a built-in time domain and frequency domain conversion function of the RISC processor; s2, performing howling detection based on the frequency domain signal so as to obtain a howling frequency point; s3, carrying out notch processing on the frequency domain signal based on the generated howling frequency point to obtain a frequency domain signal subjected to notch processing; s4, performing frequency shift processing on the frequency domain signal subjected to notch processing to obtain a signal subjected to frequency shift; s5, converting the signal after frequency shift into a processed time domain signal; and S6, carrying out amplification processing on the processed time domain signal according to a set maximum gain and outputting the processed time domain signal. On the basis of existing software based on an RISC processor, an anti-howling function is added, howling detection is carried out based on a frequency domain signal, so that a howling frequency point is obtained, the howling sound generation condition is destroyed through a series of processing, and the howling sound generation efficiency is improved. The howling sound caused by cyclic feedback amplification of the microphone input audio signal and the loudspeaker output audio signal at a certain frequency point is prevented. Based on the method, the requirement of suppressing the howling sound can be met, and meanwhile the production cost is reduced.

An acoustic module includes at least one speaker; at least one microphone; at least one printed circuit board (PCB); and at least one acoustic tube having a first end and a second end. The speaker and microphone are in acoustic communication with the acoustic tube and in electrical connection with the PCB. The acoustic tube comprises at least one acoustic channel configured to acoustically couple the speaker to the tube. The acoustic tube is configured to provide an acoustic path between the speaker and an ear canal.

An exhaust sound enhancement (ESE) system for a vehicle without an internal combustion engine includes one or more speakers, an amplifier configured to generate and play sounds on the one or more speakers, and a tuned exhaust assembly with a housing configured to resonate, amplify and inter-modulate the sounds from the one or more speakers to mimic exhaust sounds that would be produced by a predetermined internal combustion engine.

The utility model discloses a buried pipeline leak detection device, which comprises a sound acquisition device and a sound generating device, the sound generating device is led in from an upper branch of a buried pipeline, floats into the buried pipeline and can flow along with water flow in the pipeline, the sound generating device is provided with generating equipment, and the generating equipment is connected with the sound acquisition device. Low and medium frequency sound can be emitted; the sound collection device is located on the ground and can detect the frequency emitted by the sound generation device. When pipeline leakage exists, the sound generating device can flow to the leakage position along with water flow, low and medium frequency sounds with different frequencies are detected through the sound collecting device, good penetrability is achieved, attenuation of the sounds in soil is weakened, and the detection accuracy can be improved by detecting the sound with the specific frequency; and meanwhile, interference of environmental noise on detection can be effectively reduced, accurate and rapid positioning of the pipeline leakage point is achieved, and the construction amount is reduced.

The present disclosure provides an open earphone comprising: a sound production component including a transducer and a housing accommodating the transducer and an ear hook. In a wearing state, a portion of the ear hook is hung between an auricle and a user's head, and the other portion of the ear hook extends towards a side of the auricle away from the head and connects to the sound production component to place the sound production component in a position near an ear canal but not blocking the ear canal. The housing is provided with a sound outlet on an inner side surface towards the auricle for guiding a sound generated by the transducer out of the housing and to the ear canal, and a ratio of an area of the sound outlet to an area of the inner side surface is between 0.015 and 0.25.

The invention relates to a sound guidance structure for a sound-generating device (1) in a vehicle (3), wherein the sound-generating device has a membrane (5) for sound generation and the sound guidance structure has a plurality of curved and non-intersecting ribs (7) which extend in a plane perpendicular to an extension plane of the membrane, wherein each of the ribs (7) has a vertex and wherein the vertices are spaced apart from each other along a straight line which is substantially parallel to the surface of the membrane (5).

This invention discloses a safety warning device and its control method. The safety warning device includes an image acquisition unit, a sound generation unit, a warning light unit, a blocking unit, and a controller unit. The controller unit is connected to the control terminals of the image acquisition unit, the sound generation unit, the warning light unit, and the blocking unit, respectively. The controller unit and the image acquisition unit are connected via a communication unit and a remote terminal, respectively. The control method includes: acquiring on-site images or videos through the image acquisition unit and performing image recognition; calculating the height H of the target object; if H is greater than a first preset value and less than or equal to a second preset value, enabling the sound generation unit and the warning light unit through the controller unit and saving the on-site images or videos; if H is greater than the second preset value, enabling the sound generation unit, the warning light unit, and the blocking unit through the controller unit and saving the on-site images or videos. This invention can provide timely warnings and blocking, thereby ensuring the safe and stable operation of power grid equipment.

A vehicle and a method of controlling the same are provided, the vehicle including: a sound output unit including a first speaker mounted at a front surface of an exterior of the vehicle and a second speaker mounted at a rear surface of the exterior of the vehicle; a sensor unit configured to collect vehicle driving information and object recognition information; a first processing unit configured to generate a reference sound using the vehicle driving information and the object recognition information, a second processing unit configured to generate a first sound and a second sound using the reference sound; and a third processing unit configured to control the first speaker to output the first sound and control the second speaker to output the second sound.

The present invention addresses the problem of providing an "audio signal processing device" that achieves a good sense of localization with respect to a sound having a narrow frequency band. [Solution] The present invention is provided with signal processing units provided so as to correspond to respective channels of audio signals of a plurality of channels, and each signal processing unit has: a target sound separation unit (411) that separates a target sound signal indicating a target sound, which is a sound to be subjected to localization enhancement, from a source sound signal, which is an audio signal of the corresponding channel; a sense-of-localization-enhanced sound generation unit that generates a sense-of-localization-enhanced sound signal in which the frequency of the target sound signal separated by the target sound separation unit (411) is multiplied by k (k is an integer of 2 or more); and a synthesis unit that synthesizes and outputs the localization-enhanced sound signal generated by the localization-enhanced sound generation unit and the source sound signal.

The invention relates to the technical field of pronunciation control, and provides a non-contact Hall drumhead vibration sensing and intelligent pronunciation control method and system, and the method comprises the steps: collecting an original Hall sensing electric signal generated when a user knocks a drumhead through a Hall sensor array in a drumhead, carrying out the signal preprocessing of the original Hall sensing electric signal, and obtaining a pre-processed signal; a standard Hall sensing electric signal is obtained, physical characteristic parameters are extracted, and a first tympanic membrane tension parameter, a damping coefficient and a striking position are obtained; obtaining an initial tympanic membrane tension parameter through a tympanic membrane stress sensor, carrying out the comparative analysis of the first tympanic membrane tension parameter and the initial tympanic membrane tension parameter, obtaining a tension decay value, and obtaining a pitch parameter based on a pre-constructed tension decay value-pitch mapping relation. According to the invention, through signal preprocessing and physical characteristic parameter extraction, key quantities reflecting the physical state of the tympanic membrane, such as a tympanic membrane tension parameter, a damping coefficient and a striking position, are systematically extracted, and a real and accurate physical basis is provided for sound generation.

According to one aspect of the present invention, an electronic musical instrument generates a string tone signal output from one of the left and right channels based on an input excitation signal corresponding to a specified pitch, and generates a string tone signal output from the other of the left and right channels based on an accumulated signal obtained by accumulating the outputs of the first closed-loop circuit (36A-39A), the second closed-loop circuit (36B-39B), and the third closed-loop circuit (36D-39D) arranged corresponding to the pitch.