570 results about "Pickup" patented technology

The invention provides a box body and a signal transmission method. The box body comprises an upper shell, a lower shell, a first microphone, keys, a rotating shaft and an antenna assembly, the lower shell and the upper shell are installed in a matched mode to form a containing cavity, the containing cavity comprises a first surface, opposite to the upper shell, in the lower shell, the lower shell comprises an annular side face connected with the first surface, and the annular side face comprises a first side face; the second side face and the third side face are connected with the first side face, the second side face and the third side face are oppositely arranged, a first microphone pickup hole is formed in the first side face, the first microphone is arranged in the lower shell, communicated with the first microphone pickup hole and used for collecting a first audio signal outside the box body, and the key is arranged on the second side face and used for collecting a second audio signal outside the box body. The rotating shaft is arranged corresponding to the third side surface and is connected between the lower shell and the upper shell, the upper shell and the lower shell are rotatably connected through the rotating shaft, and the antenna assembly is arranged on the first surface and is used for at least transmitting at least part of the first audio signal to the mobile terminal.

The invention provides a power plant equipment sound abnormity identification and health prediction method based on granular computing and an LSTM network, and the method comprises the steps: employing an array pickup and a high-dynamic-range microphone array in a complex and high-noise background environment of a power plant, and combining an anti-interference filtering and beam forming algorithm, thereby achieving the sound abnormity identification and health prediction of the power plant equipment. According to the method, directional, multi-channel and non-contact sound acquisition is carried out on key parts of equipment, acquired sound signals are preprocessed, converted into time domain, frequency domain and time-frequency domain representations and coded into multi-dimensional numerical vectors, and compared with a rule-based expert system, the method has higher generalization ability and real-time response ability; a large language model is introduced, so that the output is closer to an engineering language and is suitable for operation and maintenance personnel to understand and execute; a self-defined knowledge base or safety semantic filtering is supported, and closed-loop deployment in an industrial field is facilitated; the system can be in butt joint with an intelligent inspection system, and full-link linkage of voice recognition, health assessment and suggestion generation is achieved.

The voice directional enhancement method comprises the steps that a current frame and a staring direction of mixed voice are acquired, and the mixed voice is acquired by a microphone array; constructing a direction feature based on the current frame of the mixed voice and the gazing direction, and constructing an audio feature based on the current frame of the mixed voice; determining a current frame mask according to the direction features and the audio features; and determining a target enhanced voice of the current frame according to the current frame mask, the current frame of the mixed voice and the plurality of historical frames of the mixed voice. In the embodiment of the invention, the mask of the current frame is generated under the guidance of the gazing direction, so that the target voice can be accurately separated from the mixed voice. Besides, based on the current frame mask and the current frame of the mixed voice, the target voice enhancement is performed frame by frame from the overall characteristics of the mixed voice by referring to a plurality of historical frames, so that the accuracy of the target enhanced voice of the current frame can be effectively improved, and thus the accuracy of directional pickup is improved.

The invention relates to a speech recognition method for a tactical AR helmet, and the method comprises the steps: collecting a first audio signal through a near-field pickup disposed near the mouth and nose of a wearer, and collecting a second audio signal through an environment pickup disposed at the outer side of the helmet or away from the mouth and nose; synchronously acquiring a third signal sounding with the wearer, wherein the third signal is at least one of helmet inner side contact type micro vibration, bone conduction vibration pickup or helmet inner sound pressure change; calculating a near-field difference indicator based on the first audio signal and the second audio signal, the near-field difference indicator comprising at least one of an energy difference or an energy ratio; determining sound production starting and ending moments from the first audio signal and the third signal, and calculating a time sequence synchronization index; and when the near-field difference index satisfies a preset near-field condition and the time sequence synchronization index satisfies a preset synchronization condition, determining that the voice is sent by the helmet wearer and a corresponding voice segment is output for subsequent identification, otherwise, shielding the voice segment.

The utility model relates to the technical field of pickup equipment, in particular to an intelligent acoustic positioning imager. The sound source positioning device comprises a lower shell, a sealing rubber mat and a microphone main board, the lower shell, the sealing rubber mat and the microphone main board are sequentially connected from outside to inside to form a sound source positioning assembly, and a plurality of digital silicon microphone structures are distributed on the sound source positioning assembly in an array mode. Each digital silicon microphone structure comprises a lower shell pickup port arranged on the lower shell, a rubber mat opening arranged on the sealing rubber mat and a mainboard pickup port arranged on the microphone mainboard, the microphone, the lower shell pickup port, the rubber mat opening and the mainboard pickup port are sequentially butted and communicated, the microphone is positioned on the microphone mainboard and is aligned with the mainboard pickup port, and the lower shell pickup port is positioned on the lower shell and is aligned with the mainboard pickup port. The digital silicon microphone structures are mutually independent. Multiple paths of high-sensitivity digital silicon microphones are arranged in an array mode to form a recording system for cooperative work, and the functions of sound source positioning, noise suppression and the like are achieved. And a stepped pickup channel is adopted, so that the direction and the distance to a sound source can be accurately positioned.

The invention relates to the technical field of directional pickup, and discloses a directional pickup method and device, computer equipment and a medium, and the method comprises the steps: obtaining time domain voice signals collected by at least two microphones, and carrying out the time-frequency conversion; calculating an observation phase difference of each frequency point, and determining a target theoretical phase difference according to a target pickup direction specified by a user and the geometric parameters of the microphone; encoding the target theoretical phase difference into a query vector, encoding the observation phase difference into a key vector, and generating a space confidence mask through a geometric cross attention mechanism; and filtering the frequency domain signal by using the mask, and outputting enhanced voice in a target direction through inverse time-frequency transformation. According to the invention, through an attention mechanism guided by physical prior, the problem of phase winding is effectively solved, and high-robustness and high-fidelity speech pickup in any direction is realized in a strong reverberation and low signal-to-noise ratio environment.

The invention discloses a digital work card-driven business window multi-source recording data fusion intelligent analysis system, and particularly relates to the technical field of voice processing. The system is based on asynchronous audio streams collected by a wearable digital work card, an array microphone and environment pickup equipment; structured alignment and unified time reference construction of multi-source recording data are realized by adopting the steps of anchor point detection, event graph construction, cross-source matching, elastic time distortion alignment and the like. The system completes cross-source event marking by introducing multiple types of anchor point detectors (semantic keywords, acoustic abrupt changes and prompt tones); constructing an event alignment graph and executing confidence classification in combination with a unified clipping and cross sliding matching strategy in the anchor point pairing process; and then performing multi-scale alignment and resampling on the audio stream based on a layered elastic time warping method, and finally outputting a frame-level synchronous voice data stream to provide unified time support for downstream speaker separation, behavior auditing and semantic mapping.

The present application relates to the technical field of electronic devices. Disclosed is an electronic device, comprising a first shell, a second shell, a first microphone assembly, a display screen and a first sound pickup channel. The display screen and the first microphone assembly are arranged in the first shell, and the second shell surrounds and is connected to the first shell, and is partially located on the side of the display screen facing away from the first shell. A first inlet and a second inlet of the first sound pickup channel are in communication with the outside of the electronic device; the first inlet is provided in a first side portion of the electronic device and is enclosed by the first shell; the second inlet is enclosed by the first shell and / or the second shell; and an outlet of the first sound pickup channel is in communication with the first microphone assembly. In a first direction, compared with the orthographic projection of the first inlet on a first plane, the orthographic projection of the second inlet on the first plane is closer to the first microphone assembly, wherein the first plane is the plane where the direction of length and the direction of width of the electronic device are located, and the first direction is the direction from the first side portion to another side portion opposite the first side portion. Thus, the risk of hole blockage can be reduced, and the sound pickup performance is good.

The invention relates to the technical field of earphones, in particular to a microphone structure, an earphone and a test method. The microphone structure comprises a shell and a microphone assembly, the shell comprises a pickup hole, an exhaust hole and a containing cavity, the microphone assembly is located in the containing cavity, the microphone assembly and the outer wall of the shell are arranged in a spaced mode, the microphone assembly divides the containing cavity into a first cavity and a second cavity which are independent from each other, the pickup hole is communicated with the first cavity, and the exhaust hole is communicated with the second cavity. The earphone comprises the microphone structure. The testing method is used for testing the acoustic performance of the earphone. According to the microphone structure, the earphone and the test method, the noise reduction effect can be improved, and the definition of voice communication is ensured.

The pickup device (1) includes: an adaptive filter (141) that generates a speculative noise signal from a reference signal representing the noise signal component contained in the input signal acquired by the microphone (11); a noise removal signal generation unit (15) that generates a noise removal signal after subtracting the speculative noise signal from the input signal; a filter coefficient update unit (142) that updates the filter coefficients of the adaptive filter (141) using the noise removal signal; and a sample position determination unit (162) that determines at least one signal sample position from the signal sample position with the largest absolute value of the noise removal signal up to the predetermined largest signal sample position, wherein the filter coefficient update unit (142) updates the filter coefficients at the at least one signal sample position determined by the sample position determination unit (162).

The utility model discloses an earphone and playing equipment, and belongs to the technical field of earphones. The earphone comprises an earphone body and a shell, the earphone body is used for playing audio for the conchae cavity, the shell is connected with the earphone body, the shell is provided with a pickup hole, the pickup hole is used for picking up sound, the shell is provided with a pressure reduction area, the pressure reduction area is used for dispersing wind power of airflow, the pickup hole is formed in the pressure reduction area, and the opening direction of the pickup hole and the axial direction of the shell are arranged in a crossed mode. The earphone can reduce wind noise.

An information processing apparatus acquires a video captured by an imaging apparatus, acquires a plurality of sounds picked up by a plurality of sound pickup apparatuses in sync with capturing of the video, acquires state information regarding an attention state of a viewer to the video, and generates audio to be reproduced with the video by combining the plurality of sounds, wherein, in a case where the state information indicates that the viewer is having an overall view of the video, a plurality of sounds picked up by a plurality of sound pickup apparatuses set inside an area being watched by the viewer in the video are combined with an equal ratio, and sounds picked up by sound pickup apparatuses set outside the area are combined with a ratio that is reduced as the distance from the area to the sound pickup apparatuses increases.

The invention provides a data processing method and computer equipment, which can be applied to the field of audio and video processing, and comprises the following steps: determining first azimuth information of an abnormal event occurring in a physical space through a shooting device, and guiding the shooting device and a pickup device to perform linkage parameter adjustment according to the first azimuth information so as to focus a target area when the abnormal event occurs, the purpose of focusing is to only collect audios and videos in a target area. And when the sound source sounds in the target area, determining a first sub-area (the area where the person in the sound production state in the abnormal event is located) from the target area, and adjusting the pickup parameter again to enable the pickup range to be limited in the first sub-area. According to the method, firstly, the sound curtain of the area where the abnormal event is located is constructed through the parameter coarse adjustment process (namely, only audio and video in the target area are collected, and sound outside the target area is shielded), when the human voice is recognized in the target area, the parameters are further finely adjusted to achieve accurate directional pickup of the human voice in the abnormal event, and the audio and video evidence obtaining quality is effectively improved.

The utility model discloses a kind of explanation equipment with electronic chest card function, explanation equipment includes shell, control mainboard, battery, sound pickup, display screen and clamping piece, shell has accommodating cavity;Control mainboard is set in accommodating cavity;Battery is set in accommodating cavity, and is electrically connected with control mainboard;Sound pickup is used to collect the voice of explanation personnel, is set in shell, and is electrically connected with control mainboard;Display screen is set in the front of shell, and is electrically connected with control mainboard, display screen can show the first display picture with explanation personnel chest card information, so that explanation equipment can be used as electronic chest card;Clamping piece is set in the back of shell, so that user can clamping wear explanation equipment.Explanation equipment can be used as electronic chest card while ensuring having interpreter function, both can satisfy work demand, and can keep appearance neat and unified, solve the inconvenience and unattractive problem caused by interpreter and chest card wearing simultaneously.

The application relates to the field of active noise reduction technology, in particular to an ANC (active noise control) active noise reduction simulation system, which comprises a first pickup sensor, a second pickup sensor, a simulation module, a microprocessor and a mediation unit. External sound of an ANC earphone is collected by the first pickup sensor, then noise reduction processing is carried out by using a noise reduction controller, internal sound of the ANC earphone is collected by the second pickup sensor, and waveform of the internal sound of the ANC earphone is simulated by the simulation module, then the waveform is compared with a preset optimal waveform by the microprocessor, parameters of a noise reduction filter are adjusted by the mediation unit, and features of the simulated sound waveform are extracted conveniently, the noise reduction module of the noise reduction earphone is systematically and visually adjusted, and noise reduction performance difference between left and right earphones is minimized.

Embodiments of the present application provide a kind of processing method and device of audio signal, it is related to media technical field, the method comprises: using N beams respectively to the audio signal to be handled is carried out beam processing, obtains N beam signals, N is greater than or equal to 2 integer;The audio signal to be handled is in target sound pickup range, and the audio signal including at least one sound source is collected by microphone, the coverage range of the N beams is in target sound pickup range;And determine N beam signals main beam signal and N-1 interference beam signals, the main beam signal is the beam signal of target sound source;And the adaptive filtering is carried out to main beam signal and N-1 interference beam signals, to obtain target sound source enhancement signal.Using the method provided in the embodiments of the present application, the interference signal in audio signal can be effectively suppressed, and the quality of audio signal is improved.

The invention discloses a conference privacy protection system and method based on visual sound field fusion. The conference privacy protection system comprises a visual acquisition module, an audio acquisition module, an audio playing module and a processing control module, wherein the visual acquisition module transmits mouth shape area three-dimensional coordinates, ear area three-dimensional coordinates and mouth motion states of participants to the processing control module; the processing control module generates a directional pickup instruction based on the mouth shape area three-dimensional coordinates, and sends the directional pickup instruction to the audio acquisition module to control the audio acquisition module to focus mouth shape area pickup; and meanwhile, a directional playback instruction is generated based on the three-dimensional coordinates of the ear region and is sent to the audio playing module to control the audio playing module to project sound beams to ears. Through visual guidance directional pickup, ultrasonic directional playback and audio and video fusion optimization, the risk of audio diffusion is reduced, so that the conference privacy protection effect is improved.

The invention discloses an open type wearable noise reduction earphone, and relates to the field of earphones. The earphone shell is provided with a pickup hole; the pickup hole is positioned on the inner side of the earphone shell; the microphone is arranged in the earphone shell and corresponds to the pickup hole; the noise reduction net-shaped structure is connected with the earphone shell and shields the pickup hole; and the noise reduction net structure is positioned on one side, close to the pickup hole, of the microphone. According to the microphone, the pickup hole is shielded by the noise reduction net structure, voice sound waves are allowed to pass through, the sensitivity of the microphone to effective voice signals is not remarkably reduced, and tone quality degradation or algorithm compensation requirement increase caused by blockage of a pickup channel is avoided; and the direct impact of wind noise on the microphone is avoided, physical weakening and energy dissipation are carried out on the airflow entering the pickup channel, and the influence of the wind noise on the pickup of the microphone is reduced from the structural level, so that the call quality in a wind noise scene is effectively improved on the premise of not influencing the open wearing experience.

The utility model discloses a high-quality noise reduction earphone, which comprises a shell, one end of the shell is provided with a sound outlet tube, and the end part of the sound outlet tube is provided with a sound outlet hole; the inner wall of the sound outlet tube is provided with a loudspeaker assembly and a feed-forward pickup assembly. The housing is also provided with a pickup channel structure and a control circuit board. The pickup channel structure comprises a first channel and a first pipeline. The pickup channel structure formed by the first channel and the first pipeline is used for directly collecting sound in the ear canal, the influence of sound filtering damping is prevented, and the first pipeline is arranged in the linear acoustic path design of the first pipeline in a linear acoustic path mode. The sound wave attenuation and the phase deviation are reduced, the influence of sound filtering damping is prevented, the pickup precision of the feed-forward pickup assembly on the sound in the ear canal is ensured, the subsequent noise reduction processing effect is improved, and the sound quality of the high-sound-quality noise reduction earphone is improved.

The invention discloses a distributed voice interaction method and electronic equipment in an outdoor scene, and the method comprises the steps: starting a distributed voice interaction terminal which comprises a pickup system with a microphone array, a positioning system and a closed-loop sound source tracking system; the sound source is preliminarily positioned through the pickup system; inputting the preliminary positioning result into a positioning system for accurate positioning; the positioning result is input into a closed-loop sound source tracking system, and the closed-loop sound source tracking system adjusts the pickup direction of the microphone in real time according to the positioning result, so that the microphone points to the sound source; and performing voice recognition based on the adjusted pickup signal to obtain voice interaction content of the sound source. The voice recognition precision can be improved, and the anti-interference capability in the voice acquisition process is improved.

The utility model provides a voice module, turning plate subassembly and range hood, voice module includes shell, pickup piece, connecting piece and has the cover plate of first hole, shell encloses and forms the accommodation cavity, on the shell is provided with the first through hole that communicates the accommodation cavity with the outside, pickup piece at least partially is provided in the first through hole, and the cover plate is provided with the first hole. At least part of the connecting piece is located in the containing cavity, the cover plate is located on the front face of the shell through the connecting piece to shield the pickup piece, and part of the pickup piece is exposed out of the first hole. According to the utility model, on one hand, the pickup function of the pickup member is ensured, and the cover plate can effectively block smudginess and reduce the influence of the smudginess entering the voice module on the pickup member, thereby prolonging the service life of the pickup member; and on the other hand, the cover plate and the shell can be easily connected or separated through the connecting piece, so that quick assembly or disassembly is realized, the assembly and disassembly time is saved, and the pickup piece is convenient to maintain or clean.

The application relates to the technical field of data processing, in particular to an audio acquisition method, an electronic device and a storage medium. The audio acquisition method of the application uses an acoustic vector sensor (AVS) array with directivity as a pickup device, which is better than an omnidirectional microphone array, to acquire voice signals in a space, wherein each AVS in the AVS array comprises an omnidirectional microphone and a directional microphone, then the weights of the voice signals acquired by the omnidirectional microphone and the directional microphone in each AVS are adjusted according to a target direction, the voice signals of each AVS after enhancement in the target direction are obtained, then a designed super-directivity beamformer is applied to the enhanced signals acquired by each AVS for further enhancement processing, and the voice signals of the entire AVS array after enhancement in the target direction are obtained.

The utility model discloses an electronic carmba, which comprises a body, a playing assembly and a pickup assembly, the playing assembly and the pickup assembly are fixed on the body, and the body comprises a first holding part and a second holding part which are symmetrically arranged; the connecting part is arranged between the first holding part and the second holding part and is used for connecting the first holding part and the second holding part, and the playing assembly and the pickup assembly are fixed on the connecting part. The first holding part, the second holding part and the connecting part are combined to form the body in the shape of a game handle. According to the utility model, the first holding part, the second holding part and the connecting part form the gamepad-shaped body, so that the gamepad can be conveniently held and used by a user with two hands, the requirements of human engineering are met, the playing difficulty is reduced, and further market promotion is facilitated.

This invention discloses a variable-form drone-mounted microphone array, comprising a mounting device, a housing, an extension device, a power management module, a control module, an attitude sensing device, a data acquisition module, and a wireless communication device. The mounting device is connected between the drone and the housing. The extension device, power management module, control module, attitude sensing device, and data acquisition module are integrated within the housing. The extension device includes an extension motor, a transmission device, and an array linkage. Multiple microphone sensors are mounted on the array linkage, and its top end is movably connected to the top end of the housing. This invention enables the array to be mounted via the mounting device, allowing the array to be close to the sound source and unaffected by the drone's radiated sound signals. The variable-form array is achieved through the extension device, allowing the array shape to be changed according to the drone's position relative to the desired sound source, thereby achieving optimal array pickup performance and significantly improving the drone's sound pickup quality.

1. The name of the design product: Pick-up head (black record player 2M). 2. The use of the design product: Pick-up head for black record player. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The utility model provides a microphone mounting structure. The microphone mounting structure comprises a shell, a circuit board, a microphone and an elastic body. The microphone is arranged on the installation part of the circuit board and embedded in the containing groove of the elastic body, and the wall face of the containing groove abuts against the microphone so that the elastic body can wrap the microphone. The elastic body provided with the microphone is installed through the notch of the installation groove of the shell, the outer wall of the elastic body abuts against the wall face of the installation groove, the side, back to the microphone, of the installation part faces the via hole of the shell, assembly is convenient, and connection is reliable. External sound enters the microphone through the via hole of the shell and the first pickup hole of the mounting part and is picked up by the microphone. Under the condition that the loudspeaker is installed on the shell, the elastic body can play a role in sound insulation and vibration prevention, the elastic body enables the microphone and the loudspeaker to be sealed, air convection is avoided, the elastic body dissipates or reduces vibration energy transmitted to the shell by the loudspeaker, and pickup interference of the loudspeaker on the microphone is reduced.

This utility model discloses an adjustable pickup angle microphone, relating to the field of microphone technology. It includes a directional microphone body and an adjustment component. The bottom of the directional microphone body has a support frame, and the adjustment component is located on one side of the support frame. The adjustment component includes a side plate, a side cover, a first motor, a worm gear, a worm wheel, and an adjustment shaft. The side cover is mounted on one side of the side plate, and the first motor is fixed to the bottom of the side cover. Through the adjustment component, when the pickup angle of the directional microphone body needs to be adjusted, the first motor drives the worm gear to rotate, which in turn drives the adjustment shaft to rotate, adjusting the pitch angle of the directional microphone body. In conjunction with a second motor, a gear and a gear ring drive the base plate to rotate, changing the orientation of the directional microphone body. This allows for precise pickup at specific angles, further expanding the device's application range.

The application provides an earphone shell, an earphone and an earphone kit. The earphone shell comprises a main shell and an acoustic functional part connected to the main shell. The main shell and the acoustic functional part jointly form a containing cavity of the earphone shell, which is suitable for containing electro-acoustic devices of the earphone. The acoustic functional part is provided with an acoustic channel, which at least partially penetrates the acoustic functional part to communicate the containing cavity with the outside. Part or all of the acoustic channel forms an identification part on the acoustic functional part, which presents a specified symbol. The acoustic channel of the earphone shell provided by the application can be used as an acoustic hole such as a sound outlet hole, a sound outlet hole or a sound pickup hole, and can also play an identification role. The acoustic channel and the identification part are effectively combined together, and the multiplexing of the acoustic channel and the identification part is realized.

The utility model discloses a piano tuning device, which comprises a shell and a sound pick-up, and can accurately identify the deviation between the current intonation state of the piano and the preset standard intonation by using the sound pick-up to capture sound signals sent by the piano and accurately analyzing the sound signals through a controller. Therefore, a user can control the motor conveniently, it is ensured that each string can reach the ideal vibration frequency, and then the tuning efficiency of the piano is improved. A user can flexibly select a proper adjusting head according to the size and the shape of a piano tuning peg nail, a proper adjusting assembly is easily rotated by sliding a T-shaped sliding block on a shell cover, in addition, the tedious process of traditional manual tuning is simplified through a motor-driven adjusting mode, and the operation difficulty is reduced; and through the design of the anti-falling unit, the phenomena of thread falling and slipping between the adjusting head and the threaded rod on the connecting seat in the adjusting process are effectively avoided, and the stability and the reliability in the adjusting process are ensured.

The present invention relates to an audio device with a housing, a microphone arm and a detector for determining an orientation of the microphone arm relative to the housing. The invention may advantageously be applied in audio devices having a microphone arm, such as headsets, earphones, hearing protectors and other audio devices used for sound pickup.The audio device comprises a housing, a microphone arm that is mechanically and movably connected to the housing, a microphone unit arranged at or in the microphone arm and configured to pick up sound from the environment of the audio device and provide a corresponding microphone audio signal, a signal processor arranged at or in the housing and configured to provide electric power to the microphone unit, and a flexible substrate extending in a length direction between a first end mechanically connected to the housing and a second opposite end mechanically connected to the microphone arm.The flexible substrate is configured to bend in dependence on the microphone arm moving relative to the housing and comprises one or more electrical conductors electrically connecting the microphone unit and the signal processor to convey the electric power from the signal processor to the microphone unit and / or the microphone audio signal from the microphone unit to the signal processor.The flexible substrate further comprises a bend sensor that is configured to change the value of an electric property in dependence on a bending of a first portion of the flexible substrate, and the audio device further comprises a bend detector electrically connected to the bend sensor and configured to estimate an orientation of the microphone arm relative to the housing in dependence on the value of the electric property of the bend sensor.Arranging the bend sensor at or in the flexible substrate may provide a both reliable and cost-effective estimation of the orientation of the microphone arm.