569results about "Microphone spatial/constructional arrangements" patented technology

This disclosure describes an invention that that mutes specific talkers using at least one beamforming microphone array 102 that is configured to generate N audio signals 108 where each audio signal is associated with a spatial pickup pattern 130, the microphone array(s) 102 are located in a room 200; a processor 104 and memory 105 operably coupled to the microphone array 102, the processor 104 configured to execute the following steps: (a) selectively mute or unmute an individual talker the room with a mute function 106 that controls whether to mute or unmute the individual talker T1-T7 that is picked up by one or more of the individual audio signals, the mute function 106 includes speech learning that learns to identify different talkers in real time to allow the mute function 106 to identify transitions from one talker to another talker in the room 200, (b) output an audio signal 110 based on the selective muting of the talkers T1-T7 in the room 200.

An audio-augmented-reality-object playback device comprises a microphone, an audio playback device to be worn on a listener, and a processor, and the processor is configured to place an audio-augmented-reality-object in a real space, acquire a stereoscopic audio signal from the audio-augmented-reality-object to carry out control for causing the audio playback device to output a sound based on the stereoscopic audio signal, detect a level of a sound in the real space collected by the microphone and a sound source direction of the sound in the real space and correct a placement position of the audio-augmented-reality-object based on a result of the detection so as to separate the placement position of the audio-augmented-reality-object from the sound source direction of the sound in the real space, and carry out control for causing the audio playback device to output the sound based on the stereoscopic sound signal at the placement position as corrected.

A system, article, device, apparatus, and method of audio processing comprises receiving, by processor circuitry, binaural audio signals at least overlapping at a same time and of a same two or more audio sources. The method also comprises generating localization map data indicating locations of the two or more audio sources relative to microphones providing the binaural audio signals and comprising inputting at least one version of the binaural audio signals into at least one neural network (NN).

A method for estimation of one or more audio spatialization parameters for a specific user, a training method and an audio system is provided, wherein the estimation method comprises obtaining audio data comprising first second audio data by obtaining the first audio data from a first microphone arranged near, in, or at a first ear canal of the target user and the second audio data from a second microphone arranged near, in, or at a second ear canal of the target user; and providing the one or more audio spatialization parameters comprising: applying a model to the audio data for provision of a parameter estimate of the one or more audio spatialization parameters; determining the one or more audio spatialization parameters based on the parameter estimate; and outputting the one or more audio spatialization parameters.

An audio device that is wearable on a user, the audio device including comprising a mic, wherein the mic is disposed at a position at which at least part of a vibration section of the mic is included inside an external auditory canal of the user and at an angle at which the vibration section has a vibration direction toward an inner wall of the external auditory canal when the audio device is worn by the user.

A method, computer program product, and computing system for generating a plurality of acoustic relative transfer functions associated with a plurality of audio acquisition devices of an audio recording system deployed in an acoustic environment. Acoustic relative transfer functions of at least a pair of audio acquisition devices of the plurality of audio acquisition devices may be compared. Location information associated with an acoustic source within the acoustic environment may be determined based upon, at least in part, the comparison of the acoustic relative transfer functions of the at least a pair of audio acquisition devices of the plurality of audio acquisition devices.

The present disclosure provides an audio system, a method and a system for facilitating operation of a machine. The machine includes actuators assisting tools to perform tasks. In an example, the audio system is configured to receive an audio mixture of signals generated by audio sources including at least one of the tools performing the tasks, or the actuators. The audio sources forming the audio mixture are identified by a location relative to a location of each microphone of a microphone array measuring the audio mixture. The audio system is configured to extract an audio signal from the audio mixture generated by an identified audio source, based on a correlation of spectral features in a multi-channel spectrogram of the audio mixture with directional information indicative of the relative location of the identified audio source. The audio system outputs the extracted audio signal to facilitate the operation of the machine.

The invention discloses an array microphone system configuration method and device, computer equipment, a storage medium and a program product, and the method comprises the steps: generating a configuration interface which comprises a system configuration space matched with a physical space where an array microphone system is installed; the physical space comprises a target radio area; determining azimuth information of a sound source according to a test audio sent by the sound source in the target radio area detected by the at least one array microphone device; mapping the azimuth information to the system configuration space, and generating a sound source identifier; and generating a sound source area corresponding to the sound source identifier in the system configuration space. The whole process of the array microphone system configuration method does not need to accurately measure the accurate coordinates of the target sound receiving area in the physical space, and the problem of inaccurate sound pickup area division caused by measurement errors is avoided.

The invention provides electronic equipment and a pickup device, the electronic equipment is provided with an appearance surface, the appearance surface is provided with a first pickup port and a plurality of second pickup ports distributed at intervals, and each second pickup port and the first pickup port are arranged at intervals; a microphone, a first sound channel and a plurality of second sound channels are arranged in the electronic equipment, the first sound channel is communicated with the first pickup port and a first cavity of the microphone, the second sound channels are communicated with the second pickup ports in a one-to-one correspondence mode, and the second sound channels are communicated with a second cavity of the microphone. And the first cavity of the microphone and the second cavity of the microphone are respectively positioned on two sides of a vibrating diaphragm of the microphone. A plurality of pickup vectors can be formed between the plurality of second pickup ports and the first pickup port. A vector obtained by adding the plurality of pickup vectors is consistent with the sensitivity direction of the microphone. The microphone of the electronic equipment can better receive sound from the sensitivity direction of the microphone, and the microphone can realize directional pickup.

Systems and techniques are provided for performing spatial audio recording. For instance, a process can include detecting an occlusion for at least one audio frame of one or more audio frames associated with a spatial audio recording. During the spatial audio recording, the process can further include selecting, based on detection of the occlusion, at least one of an occluded spatial filter for the one or more audio frames or a non-occluded spatial filter for the one or more audio frames.

Conferencing systems and methods configured to generate true talker coordinates for use in camera tracking of talkers and objects in an environment and other room intelligence use cases are disclosed. The initial configuration and ongoing usage of conferencing systems can be improved by detecting and converting the locations of objects and talkers in an environment into a common coordinate system. The amount of time and effort by installers, integrators, and users, can be reduced leading to increased satisfaction with installation and usage of the conferencing system.

A first electrical signal is received from a first cardioid microphone capsule of a microphone assembly. The first cardioid microphone capsule is oriented to face in a first direction. A second electrical signal is received from a second cardioid microphone capsule of the microphone assembly. The second microphone capsule is oriented to face in a second direction that is opposite the first direction. A polar pattern is formed for the microphone assembly by converting the first electrical signal into a first audio signal and converting the second electrical signal into a second audio signal. A first weight is applied to the first audio signal and a second weight is applied to the second audio signal. The polar pattern is generated for the microphone assembly by summing the first audio signal and the second audio signal.

The present disclosure presents a communication device configured to removably attach to a mask, and to receive, transmit, and amplify sound and / or speech from a wearer.

The present disclosure provides an audio system, method, and system for facilitating machine operation. The machine includes an actuator that assists the tool in performing the task. In an example, an audio system is configured to receive an audio mixed signal of a signal generated by an audio source that includes at least one of a tool or an actuator that is performing a task. An audio source forming an audio mixed signal is identified by a relative position to each microphone of a microphone array that measures the audio mixed signal. The audio system is configured to extract an audio signal from an audio mixed signal generated by the identified audio source based on a correlation of spectral features in a multi-channel spectrogram of the audio mixed signal and directional information indicative of a relative position of the identified audio source. The audio system outputs the extracted audio signal to facilitate operation of the machine.

A method may include capturing an image at a camera included at an information handling system, the camera coupled to a vision system. A position of a user relative to a display device may be determined based on analysis of the image by the vision system. The method may further include adjusting properties of an audio signal provided to a speaker based on the position of the user.

An audio system is provided. The audio system includes a plurality of loudspeakers and a mobile device. The plurality of loudspeakers is capable of being positioned in a listening environment and being arranged to transmit an audio signal in the listening environment. Each loudspeaker is programmed to determine angle information of the audio signal as received at the loudspeaker relative to other loudspeakers of the plurality of loudspeakers and to transmit a first signal indicative of the angle information. The mobile device is programmed to receive the first signal from each of the loudspeakers and to determine a location for each loudspeaker in the listening environment based at least on the angle information.

The invention relates to a method for obtaining a position of a sound source relative to a dedicated reference point. A first and a plurality of second sound signals are recorded which are synchronized in time. The position can be obtained by applying an estimated filter to a correlated signal derived by correlation of the first sound signal with at least one of the plurality of second sound signals in the frequency domain. Two timing values are derived in the at least one filtered and correlated signal exceeding a dedicated threshold in the time domain. Then the distance between the dedicated reference point and the sound source based on the respective obtained first timing value and second timing value.

The invention relates to a method for obtaining the position of a sound source relative to a dedicated reference point. A first sound signal and a plurality of second sound signals synchronized in time are recorded. The position may be obtained by applying the estimated filter to a correlation signal obtained by correlating the first sound signal with at least one of the plurality of second sound signals in the frequency domain. Two timing values are derived in the at least one filtered correlation signal, the two timing values exceeding a dedicated threshold in the time domain. The distance between the dedicated reference point and the sound source is then calculated based on the first timing value and the second timing value that are each obtained.

The present invention relates to a method for obtaining a position of a sound source relative to a dedicated reference point, where a first audio signal and a number of second audio signals are recorded synchronously in time. The position can be obtained by applying an estimated filter to a correlation signal derived by correlation of the first audio signal with at least one of the number of second audio signals in the frequency domain. Two timing values ​​are derived for at least one filtered correlation signal that exceeds a dedicated threshold in the time domain. Then, a distance between the dedicated reference point and the sound source is based on each obtained first and second timing value.

A head-mounted device for generating binaural audio content includes a first rod coupled to a first microphone housing enclosing a first front microphone and a first rear microphone, respectively, that generate acoustic signals. The first microphone housing includes a first front port facing downward and a first rear port facing rearward. The apparatus includes a second rod coupled to a second microphone housing enclosing a second front microphone and a second rear microphone, respectively, that generate acoustic signals. The second microphone housing includes a second front port facing downward and a second rear port facing rearward. In one embodiment, an apparatus includes a binaural audio processor including a beamformer and a storage device. The beamformer generates a first beamformer signal based on acoustic signals from the first front microphone and the first rear microphone and a second beamformer signal based on acoustic signals from the second front microphone and the second rear microphone. A storage device stores the first and second beamformer signals as a two-channel file.

Digital audio signal processing techniques used to provide an acoustic transparency function in a pair of headphones. A number of transparency filters can be computed at once, using optimization techniques or using a closed form solution, which are based on multiple re-seatings of the headphones and that are as a result robust for a population of wearers. In another embodiment, a transparency hearing filter of a headphone is computed by an adaptive system that takes into consideration the changing acoustic to electrical path between an earpiece speaker and an interior microphone of that headphone while worn by a user. Other embodiments are also described and claimed.

To correct displacement between a photographing direction and a sound collecting direction.SOLUTION: An imaging apparatus has: connection means that connects to a sound collecting device that collects voice data in different directions; voice processing means that generates three-dimensional acoustic data on the basis of the voice data acquired from the sound collecting device; and correction means that corrects the three-dimensional acoustic data on the basis of the difference between the photographing direction of the imaging apparatus and a sound collecting direction of the sound collecting device.SELECTED DRAWING: Figure 1

Techniques are described for wirelessly receiving, at first and second speaker assemblies, signals representing left and right audio channels from each of first and second sources, and using the signals, simultaneously playing, on both speaker assemblies, music, computer game audio, computer chat audio, and speech picked up by speaker microphones.

Disclosed is a method for enhancing audio fidelity in a virtual teleconferencing environment including recording a first audio signal from a first room; performing room impulse response (RIR) analysis for the first room to determine at least one of a direct sound component, an early reflections component and a late reverberation component; extracting at least the late reverberation component from the determined RIR components; recording a second audio signal from a second room; de-reverberating the second audio signal and convolving the de-reverberated second audio signal with at least the late reverberation component to form a third audio signal. Playing the third audio signal in the first room and abstaining from playing in the second room. The virtual teleconferencing environment is generated based on the first room to act as an audio source for the second audio signal.

Example technologies described herein relate to spatial audio on wearable playback devices, such as headphone and earbuds. Such technologies may include forms of binaural rendering of audio, which is played back on the wearable playback devices. These technologies may create or enhance an immersive listening experience which, to the listener, does not sound like you are listening on a wearable device, but are instead listening to a well-tuned, well-place, three-dimensional audio system of loudspeakers in a particular listening environment, such as the listener's actual living room.

An audio processor for providing a plurality of loudspeaker signals, or loudspeaker feeds, on the basis of a plurality of input signals, like channeled signals and / or object signals, is configured to obtain information about the position of a listener, to obtain an information about the position of a plurality of loudspeakers, or sound transducers, which may be placed within the same containment, e.g. a soundbar, to dynamically adapt an allocation of objects and / or channel objects and / or adapted signals, like adapted channel signals, derived from the input signals, like channel signals or channel objects, or like upmixed or downmixed signals, to loudspeakers, and to render the objects and / or the channel objects and / or the adapted signals derived from the input signals, in dependence on the information about the positions of the listener and of the loudspeakers, and on the allocation, in order to obtain the loudspeaker signals, such that a rendered sound follows a listener.

A head-mounted device for generating binaural audio content includes a first rod coupled to a first microphone housing enclosing a first front microphone and a first rear microphone, respectively, that generate acoustic signals. The first microphone housing includes a first front port facing downward and a first rear port facing rearward. The apparatus includes a second rod coupled to a second microphone housing enclosing a second front microphone and a second rear microphone, respectively, that generate acoustic signals. The second microphone housing includes a second front port facing downward and a second rear port facing rearward. In one embodiment, an apparatus includes a binaural audio processor including a beamformer and a storage device. The beamformer generates a first beamformer signal based on acoustic signals from the first front microphone and the first rear microphone and a second beamformer signal based on acoustic signals from the second front microphone and the second rear microphone. A storage device stores the first and second beamformer signals as a two-channel file.

The technology generally relates to spatial audio communication between devices. For example, a first device and a second device may be connected via a communication link. The first device may capture audio signals in an environment through two or more microphones. The first device may encode the captured audio with spatial configuration data. The first device may transmit the encoded audio via the communication link to the second device. The second device may decode the encoded audio into binaural or ambisonic audio to be output by one or more speakers of the second device. The binaural or ambisonic audio may be converted into spatial audio to be output. The second device may output the binaural or spatial audio to create an immersive listening experience.