253 results about "Air conduction" patented technology

An acoustic output device is provided. The acoustic output device includes a housing; a bone conduction vibrator configured to generate bone conduction sound waves and transmit the bone conduction sound waves to a cochlea through the housing to produce sound; an air conduction vibrator configured to generate air conduction sound waves, the air conduction sound waves being transmitted to an ear through sound guiding holes in the housing; and a processing module configured to provide the bone conduction vibrator and the air conduction vibrator with a first audio signal and a second audio signal, respectively, the first audio signal and the second audio signal having a frequency division point, the first audio signal and the second audio signal including components with frequencies above and below the frequency division point, respectively. The frequency division point is not less than 600 Hz.

A loudspeaker assembly and a headphone are provided. The headphone includes a housing assembly, a bone-conduction core module, and an air-conduction core module, and an accommodation space. The bone-conduction core module is provided in the accommodation space and vibrates in a first vibration direction, the air-conduction core module is provided in the accommodation space, and the bone-conduction core module and the air-conduction core module are arranged along the first vibration direction and face each other. In the above manner, the present disclosure reduces the influence of the air-conduction core module on the vibration effect of the bone-conduction core module, increases the sound volume, and improves the bone-conduction effect of the loudspeaker assembly, thereby improving the sound quality effect of the loudspeaker assembly.

The invention discloses a noise reduction method and device, equipment, a storage medium and a program product, and relates to the technical field of audio processing, and the method comprises the steps: collecting a bone conduction signal and at least two paths of environment air conduction signals of an earphone wearer through an earphone, based on the bone conduction signal, performing first noise reduction processing on a target air conduction signal of a target direction determined based on the at least two paths of environment air conduction signals to remove a first air conduction component of a relatively low frequency band of an earphone wearer, and obtaining an initial noise-reduced signal; and performing second noise reduction processing on the initial noise-reduced signal based on the bone conduction signal, the at least two paths of environmental air conduction signals and the phase difference of the at least two paths of environmental air conduction signals, so as to remove a second air conduction signal of a higher frequency band of the earphone wearer, and obtain a target noise-reduced signal. According to the method and the device, the noise generated by the earphone wearer in the audio recorded by the earphone is effectively removed.

The utility model discloses a sound production unit and a head-mounted sound production device, the sound production unit comprises a housing assembly, and a bone conduction sound production device and an air conduction sound production device which are arranged in the housing assembly, the housing assembly comprises a contact surface which is used for contacting with human skin and a sound outlet hole through which sound of the air conduction sound production device is sent out; the sounding unit is provided with a middle surface perpendicular to the width direction of the sounding unit, and the gravity center of the bone conduction sounding device and the gravity center of the air conduction sounding device are located on the two sides of the middle surface respectively; the distance D16 between the gravity center of the bone conduction sound production device and the middle surface is smaller than the distance D17 between the gravity center of the air conduction sound production device and the middle surface, so that the vibration sense generated when the bone conduction sound production device works is closer to the middle area of the surface cover, and the use comfort is better.

The invention relates to the technical field of audio signal processing, and discloses a microphone far-field pickup amplitude dynamic range control method, and the method comprises the steps: processing synchronous bone conduction and air conduction signals; respectively extracting feature vectors representing near-field interference and far-field human voice from the bone conduction signal and the air conduction signal; inputting the feature vector into an artificial intelligence decision engine, and carrying out collaborative analysis to generate a gain strategy considering interference suppression and human voice maintenance; and the gain of the air conduction signal is adjusted according to the strategy. The system comprises a signal preprocessing module, a first feature extraction module, a second feature extraction module, an artificial intelligence decision engine and a gain adjustment and reconstruction module. Unambiguous observation is carried out on near-field interference by using the bone conduction signal, the gain control problem when far-field weak human voice and near-field strong interference coexist is solved, and the pickup quality can be ensured while signal clipping can be effectively prevented.

The invention discloses a directional pickup system for intelligent glasses, which relates to the technical field of intelligent glasses and comprises heterogeneous microphone array modules used for being arranged on two sides of glasses legs to form spatial asymmetric array digital microphones and realizing coverage of + / -90 degrees in a horizontal plane and + / -30 degrees in a vertical plane by utilizing a binaural sound source positioning principle. The receiver is used for receiving acoustic signals from the environment. The adaptive beam control module calculates a sound source azimuth angle based on a dynamic beam forming algorithm and the delay inequality of microphone array signals, adjusts digital beam pointing in real time, and updates the frequency to be greater than or equal to 50Hz; according to the multistage noise suppression module, a bone conduction sensor is integrated at a nose pad of a glasses frame, sound source positioning is assisted through jaw vibration signals, environmental noise is suppressed, and a three-stage noise reduction mode is set; and the execution module is used for executing switching of pickup modes based on sound sources with different distances, wherein the pickup modes comprise a near-field mode and a far-field mode. According to the invention, through fusion of bone conduction and air conduction, environment pickup is effectively and adaptively carried out.

The present application mainly relates to an air conduction loudspeaker and an earphone. The air conduction loudspeaker comprises a diaphragm, a retaining ring, and a basket, wherein the diaphragm comprises a vibration body and an annular retaining part connected to the vibration body and arranged on the periphery of the vibration body in an annular configuration, the retaining ring is connected and fixed to the annular retaining part and is sleeved on the basket, the annular retaining part and the retaining ring have a first connection length in the axial direction of the air conduction loudspeaker and have a second connection length in the radial direction of the air conduction loudspeaker, and the first connection length is greater than the second connection length. In this way, the overall size of the loudspeaker can be effectively reduced while the sound quality of the loudspeaker can be effectively improved.

The utility model discloses an ecological window, belongs to smart home equipment technical field, ecological window includes: window frame, ventilation assembly and temperature adjustment member, ventilation assembly includes: connecting frame, fan, cover plate and drive member, connecting frame is connected to the inner side of window frame, connecting frame has the air flow passage that is conducted along the window frame thickness direction, fan is provided in the air flow passage, and the temperature adjustment member is provided with the drive member. The cover plate is movably connected with the connecting frame, and the driving component is in transmission connection with the cover plate to drive the cover plate to open and close the air channel; the temperature adjusting component is arranged in the air flow channel and used for providing cold energy or heat energy for the air flow channel, stable adjustment of the indoor environment can be achieved, the indoor and outdoor air exchange efficiency is more stable, and adjustment and control of the indoor temperature are more stable.

The invention provides an audio signal enhancement method and device, a model training method and device and electronic equipment, and the method comprises the steps: obtaining a first audio signal collected by a bone conduction microphone and a second audio signal collected by a gas conduction microphone, converting the first audio signal and the second audio signal from a time domain to a frequency domain, the method comprises the following steps: acquiring a first frequency domain audio signal and a second frequency domain audio signal, inputting the first frequency domain audio signal and the second frequency domain audio signal into a voice enhancement model obtained by training to obtain an enhanced audio signal fusing a high-frequency signal and a clear consonant signal, and performing voice enhancement by the audio enhancement model according to an audio signal acquired by an air conduction microphone. According to the invention, missing high-frequency signals and consonant-clear signals of the audio signals collected by the bone conduction microphone are extracted, so that the missing high-frequency signals and consonant-clear signals in the audio signals collected by the bone conduction microphone are supplemented, and the problems that the frequency band expansion of the audio signals collected by the bone conduction microphone is distorted and the frequency band expansion of consonant-clear signals cannot be realized are solved; and the quality of the uplink audio signal is improved.

The embodiments of the present disclosure provide a sensor device, including: a sensor assembly with a first resonant frequency and a sound pickup assembly configured to communicate with an external sound of the sensor device through a sound inlet, wherein an acoustic cavity may be formed between the sound pickup assembly and the sensor assembly, when the sound pickup assembly vibrates in response to an air conduction sound transmitted through the sound inlet, vibrations of the sound pickup assembly may change a sound pressure in the acoustic cavity, and the sensor assembly may convert the air conduction sound into an electrical signal based on changes of the sound pressure in the acoustic cavity, wherein the sound pickup assembly may provide the sensor device with a second resonant frequency, and a difference between the second resonant frequency and the first resonant frequency may be in a range of 1000 Hz-10000 Hz.

To provide a speaker assembly with superior acoustic performance. [Solution] The speaker assembly 3 includes a housing assembly, a bone conduction speaker 40, and an air conduction speaker 50. The housing assembly includes a main housing 31 for forming a housing space 300 with one end open. The bone conduction speaker includes a core housing 41 and a transducer device. The core housing is rotatably supported by the main housing and a portion of it is located within the housing space. The core housing is provided with a mounting space 410, the volume of which is smaller than the volume of the housing space. The transducer device is installed within the mounting space. The core housing is provided with a sound guide hole 4106 that communicates with the mounting space.

A speaker assembly is provided. The speaker assembly includes a housing assembly including a main housing, an air conduction speaker disposed within the main housing, and a bone conduction speaker rotatably supported on the main housing and being capable of rotating relative to the main housing along a preset rotation axis. A vibration direction of the air conduction speaker is parallel to the preset rotation axis, and a vibration direction of the bone conduction speaker is perpendicular to the preset rotation axis.

The invention discloses a sound production unit and head-mounted sound production equipment, and relates to the technical field of sound production devices, the sound production unit is in contact with human face skin when worn, and the sound production unit comprises a bone conduction sound production device and an air conduction sound production device which are independently arranged; the bone conduction sound production device and the air conduction sound production device can be independently controlled to produce sound, and the minimum value of the difference value between the working frequency band of the bone conduction sound production device and the low-frequency resonance point of the bone conduction sound production device is larger than or equal to 20 Hz. The sound production unit can utilize respective sound production characteristics of the bone conduction sound production device and the air conduction sound production device, so that the sound listening effect is improved, relatively strong vibration generated by vibration near a low-frequency resonance point of the bone conduction sound production device is reduced, and the use experience is improved.

The application discloses a bone conduction speech conversion method based on spectral envelope mapping, comprising the following steps: pre-processing and linear prediction analysis of the bone conduction speech signal, and calculating the LP filter coefficient; mapping the LSF coefficient of the air conduction speech signal corresponding to the bone conduction speech signal by using the trained neural network; controlling the minimum error of the original bone conduction speech signal and the synthesized air conduction speech signal according to the timbre weighting characteristic of the bone conduction speech characteristic; estimating the integer pitch of the bone conduction speech signal through the timbre weighting filter, obtaining the reference signal by passing the linear prediction residual signal through the timbre weighting filter, estimating the fractional pitch to obtain the adaptive codebook vector; obtaining the new reference signal by subtracting the adaptive codebook vector from the reference signal, searching for the optimal excitation in the fixed codebook; synthesizing the air conduction speech signal by combining the optimal excitation and the LP filter of the air conduction speech signal, and correcting the air conduction speech signal.

A speaker assembly and an earphone are provided. The speaker assembly includes a housing assembly, a bone conduction speaker, and an air conduction speaker. The housing assembly includes a main housing forming an accommodation space with an open end. The bone conduction speaker includes a core shell and a transducer. The core shell is rotatably supported on the main housing and partially located in the accommodation space. The core shell is provided with a mounting space, and a volume of the mounting space is smaller than a volume of the accommodation space. The transducer is provided in the mounting space. The core shell is provided with a sound guiding hole in flow communication with the mounting space. In this way, the speaker assembly has a better acoustic performance.

The invention discloses a waistband type wearable computer and a use method, the waistband type wearable computer is firstly tied on the waist, and then a fixing piece arranged on a guide block connected with a lower connecting magnetic head at the rear upper part of the waistband is clamped and fixed on a collar or a wearing article at the rear neck back position of a user; then the neck-hanging intelligent glasses are erected on ears and the nose bridge from the head to the bottom, and all wearing is completed; a user can carry out man-machine interaction on the waistband type wearable computer in a standing, sitting and lying posture. The mobile fine input keyboard and mouse with the PC scientific and technological productivity calculation function is achieved through the palm keyboard, and finger touch input of an intelligent mobile phone is achieved at the same time; a better voice man-machine interaction technology is realized through combined use of the bone conduction microphone sensor and the air conduction headset; the split type intelligent glasses display technology is utilized, a waistband type structure is adopted, the whole battery host and the intelligent glasses are separated, the weight of the glasses is reduced, and meanwhile pulling interference of a neck hanging line is avoided.

1. The name of the design product: hearing aid (FT-20-FT-21). 2. The use of the design product: the design product is used for compensating hearing for air conduction hearing loss patients. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: design 1 perspective view. 5. Design 1 is designated as the basic design.

Earphone characterized in that the earphone comprises: a housing component equipped with a receiving chamber and a sound outlet opening connecting the receiving chamber to the outside environment; and an air conduction loudspeaker comprising a magnetic circuit component, a voice coil and a diaphragm, wherein the magnetic circuit component comprises a cover with an open end, wherein the diaphragm covers the open end of the cover, the voice coil is connected to the diaphragm, and the diaphragm is located on a side of the cover facing away from the sound outlet opening.

The present disclosure provides an acoustic output device including a speaker assembly. The speaker assembly may include a transducer, a diaphragm, and a housing. A vibration of the diaphragm driven by the transducer may generate an air conduction sound wave. The housing may form an accommodating chamber for accommodating the transducer and the diaphragm. The diaphragm may separate the accommodating chamber to form a first chamber and a second chamber. A sound outlet communicating with the second chamber is arranged on the housing. The air conduction sound wave is transmitted to the outside of the acoustic output device through the sound outlet. A sound guiding channel communicating with the sound outlet is provided on the housing for guiding the air conduction sound wave to a target direction outside the acoustic output device. The length of the sound guiding channel may be less than or equal to 7 mm.

The utility model discloses an audio device and an electronic product thereof, which belong to the technical field of electronic digital accessories, and the audio device comprises an ear hook, a bone conduction earphone and an air conduction earphone. The bone conduction earphone is mounted on the ear hook, and the air conduction earphone is movably mounted on the ear hook; the air conduction earphone is provided with a first position and a second position; when the air conduction earphone is located at the first position, the air conduction earphone can be started for playing; when the air conduction earphone is located at the second position, the air conduction earphone stops playing, and the bone conduction earphone can start playing. The audio equipment provided by the utility model has strong applicability and can be used in different use scenes.

The invention discloses an air conduction loudspeaker and wearable electronic equipment. The air conduction loudspeaker comprises a magnet assembly, a frame, a vibrating diaphragm and a voice coil. The magnet assembly comprises a magnetic conductive cover, and the magnetic conductive cover comprises a cylindrical side plate and a bottom plate which are integrally formed; the magnet assembly is provided with a magnetic gap extending in the preset vibration direction. The basin frame is fixedly arranged on the periphery of the magnet assembly in a surrounding manner; the outer periphery of the vibrating diaphragm is fixed with the basin frame and is arranged opposite to the magnet assembly; one end of the voice coil is fixedly connected with the diaphragm, and the other end extends into the magnetic gap; the lower surface, facing the magnet assembly, of the vibrating diaphragm is provided with a connection position connected with one end of the voice coil. The magnet assembly is provided with a top surface facing the vibrating diaphragm in a preset vibration direction; the diaphragm has a longest dimension in a direction perpendicular to the preset vibration direction. Through the mode, the vibration effect of the vibrating diaphragm can be effectively improved, and the tone quality of the wearable electronic equipment is further effectively improved.

The utility model discloses a sound production unit and a head-mounted sound production device, and relates to the technical field of sound production devices, and the sound production unit comprises a housing assembly, a bone conduction sound production device and an air conduction sound production device. The shell assembly is provided with a sound outlet hole; the bone conduction sounding device is arranged in the shell assembly; the air conduction sound production device is arranged in the shell assembly, the air conduction sound production device comprises a vibrating diaphragm assembly, the vibrating diaphragm assembly comprises a vibrating diaphragm, the shell assembly comprises a front cavity and a rear cavity which are separated by the vibrating diaphragm, and the sound outlet hole is communicated with the front cavity; the geometric center O1 of the projection of the outer contour, located on the inner wall of the shell assembly, of the sound outlet hole in the vibration direction B of the air conduction sound production device on a plane perpendicular to the vibration direction B does not coincide with the geometric center O2 of the projection of the vibrating diaphragm in the same plane in the vibration direction B. Resonance in the acoustic cavity possibly caused when the sound outlet hole and the vibrating diaphragm are concentric can be reduced, so that the sound production quality is improved.

The utility model provides a hearing aid convenient to install, which comprises a shell, a control assembly located at one end of the shell and a sound output assembly located at the other end of the shell, the sound output assembly comprises a sound output nozzle and an air conduction loudspeaker, the sound output nozzle is made of soft rubber materials, and one end, close to the shell, of the sound output nozzle is provided with a connecting column. The air conduction loudspeaker is connected in the connecting column, a first through hole is formed in the shell, the diameter of the first through hole is smaller than that of the connecting column, and the sound outlet nozzle is connected in the first through hole in an interference fit mode. According to the hearing aid convenient to install, the air conduction loudspeaker is connected into the sound outlet nozzle, the air conduction loudspeaker connected into the sound outlet nozzle extends into the shell from the first through hole, the diameter of the connecting column is larger than that of the first through hole, and when the connecting column is connected into the first through hole, the air conduction loudspeaker is connected into the sound outlet nozzle. The connecting column deforms and is in interference fit with the interior of the first through hole, and the air conduction loudspeaker extends into the shell from the outside of the shell, so that the assembly difficulty is reduced, the assembly efficiency is effectively improved, and the production capacity is improved.

1. The name of this design product: Air conduction earphones (G11). 2. Application of this design product: for air conduction headphones. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The present disclosure relates to a diaphragm, an air conduction speaker, and a wearable electronic device. The diaphragm includes a center main body and a folded ring. The folded ring is connected to an outer peripheral edge of the center main body. The folded ring includes two arcuate segments and two connecting segments. The two arcuate segments are spaced apart and disposed opposite to each other. The two connecting segments are spaced apart side-by-side and connected one-to-one between two pairs of opposite ends of the two arcuate segments. Each arcuate segment is provided with a plurality of first pattern grooves spaced apart from each other along an extension direction of the arcuate segment. The plurality of first pattern grooves are arranged in a radial arrangement along a same spiral direction.

The application provides a bone conduction embedded loudspeaker and an electronic device. The bone conduction embedded loudspeaker comprises a shell, a bone conduction loudspeaker fixedly connected to the shell and internally forming an accommodating cavity, and an air conduction loudspeaker fixedly connected to the shell and arranged inside the accommodating cavity. Since the sound produced by the diaphragm of the air conduction loudspeaker is transmitted through air, the diaphragm can be made of a material with weak rigidity and balanced vibration, so that the air conduction loudspeaker can produce sound in a specific frequency range that cannot be produced by the bone conduction loudspeaker, overcoming the problem of narrow frequency range caused by the bone conduction loudspeaker alone. Furthermore, the sound produced by the air conduction loudspeaker can modify the sound produced by the bone conduction loudspeaker, so as to improve the sound quality of the overall structure.

The invention relates to adaptive signal processing for human voice control and acoustic feedback management. More particularly, it concerns a system and method for detecting and cancelling a person's own voice, as may be perceived through airborne, bone, and soft-tissue conduction. The invention also covers related calibration, adaptive filtering, and neural-network implementations for such systems. The present invention represents a system and method for cancelling a perception of a user's own voice as perceived through airborne, bone, and soft-tissue conduction paths. The suggested solution may operate with minimal latency, adapt to individual anatomical and environmental conditions, and maintain transparency to external sounds. Furthermore, the solution incorporates calibration routines to accurately model the transmission characteristics of these paths. It also allows to employ adaptive or machine-learning techniques to refine cancellation performance in real time.

This invention relates to the field of microphone technology, specifically to a method and system for suppressing echo and howling using a combination of bone conduction and air conduction microphones, applied to a closed-loop audio device including a combination microphone, a loudspeaker, and a feedback path estimation filter. The method involves acquiring a bone conduction signal as a target sound reference through a bone conduction acquisition channel, and acquiring a microphone signal containing target sound components and echo feedback components through an air conduction acquisition channel. The feedback path estimation filter is used to estimate the feedback path of the loudspeaker signal, generating a feedback estimation signal which is subtracted from the microphone signal to obtain an error signal. The error signal is then soft-limited to obtain a soft-limiting error signal, which forms the updated loudspeaker signal. A pre-whitening filter is established based on the soft-limiting error signal to obtain a pre-whitened microphone signal, a pre-whitened loudspeaker signal, and a pre-whitening prediction error signal. A stability detection signal is generated based on the difference between the error signal and the soft-limiting error signal. In a stable state, a normalized minimum mean square branch is used for updating; in a howling-prone state, an affine projection branch is used for updating, to track feedback path changes and suppress echo and howling.

The invention relates to the field of air conduction hearing aids, in particular to an external combination loading method of an air conduction hearing aid, which comprises an adjusting module, a mounting module, an accessory selection module and an accessory combination module, and is characterized in that the adjusting module comprises an accessory mounting base, a mounting base adjusting module and a mounting base fixing module; the mounting module comprises fitting mounting and fixing and combined fitting mounting; the accessory selection module comprises user requirements, accessory selection and the number of accessories; the accessory combination module comprises multi-accessory combination, multi-component angle fixation and multi-component installation; the air conduction hearing aid has the beneficial effects that the accessories are selected according to the external environment and self requirements, the accessories can be directly installed when only a single accessory is arranged, the accessories can be combined and installed when a plurality of accessories are arranged, and then the assembled accessories are loaded outside the air conduction hearing aid; and therefore, the air conduction hearing aid can meet the use requirements of the air conduction hearing aid in a complex environment by loading different accessories.

1. Name of the product in this design: Air conduction headphones. 2. Purpose of this design: For use in air-conduction headphones for playing audio, making voice calls, etc. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.