1482results about "Stereophonic circuit arrangements" patented technology

Disclosed herein is an audio system that can be customized by the user (including the developer) and that may allow the user to control more than just the sound levels and may allow the user to select more than one of a few pre-determined settings. Disclosed herein is a development platform that allows manufacturers (including the developers) to test various different parameters, settings, algorithms, functions, processes, accessories, and the like. The development platform allows the manufacturer to simulate the performances from possible options for the audio system, and then load the selected option from the development platform to the audio system. Additionally, the development platform that enables the end user to have the same level of control and ability to access, upload, and control plugins on the end user's device(s).

A logarithmic amplifier includes programmable gain amplifiers each having a different gain, wherein an input of each of the programmable gain amplifiers is coupled to an input of the logarithmic amplifier; and a summing circuit having inputs coupled to a corresponding output of each of the programmable gain amplifiers and an output coupled to an output of the logarithmic amplifier, wherein the summing circuit generates a logarithmic transfer function having piecewise linear segments.

An audio system is provided that includes a loudspeaker, at least one microphone, and at least one controller. The loudspeaker transmits an audio signal into a listening environment defined by at least one wall in a room. The at least one microphone is positioned on the loudspeaker and is configured to capture a reverberated audio signal including a plurality of reverberations and a plurality of peaks. The reverberated audio signal is indicative of the audio signal being reflected from the at least one wall. The at least one controller is programmed to apply a confidence score to the plurality of peaks to obtain a maximum score which is indicative of a maximum peak of the audio signal that is reflected from the at least one wall and determine a distance between the loudspeaker and the wall based at least on the maximum score.

The invention provides a cockpit multi-tone area management method, a related device and a communication system. The cabin system may angry the plurality of screens into a plurality of ride zones according to a profile. Each riding area can be associated with a sound area. The cabin system can dynamically create and delete the sound area according to the access and removal of the sounding device. The cabin system can perform unified management on audio focus, volume, audio routing and media session in a sound area. The application corresponding to one driving area can apply for the audio focus in the sound area associated with the driving area, and the sound production equipment in the sound area is used for playing the audio. Audio playing in different sound areas can be independent and does not affect each other. Therefore, different users in the vehicle can use different sound areas to listen to the audio conveniently, and the audio listening experience of the users in the vehicle is improved.

A system for presenting audio content to a user. The system comprises one or more microphones coupled to a frame of a headset. The one or more microphones capture sound from a local area. The system further comprises an audio controller integrated into the headset and communicatively coupled to an in-ear device worn by a user. The audio controller identifies one or more sound sources in the local area based on the captured sound. The audio controller further determines a target sound source of the one or more sound sources and determines one or more filters to apply to a sound signal associated with the target sound source in the captured sound. The audio controller further generates an augmented sound signal by applying the one or more filters to the sound signal and provides the augmented sound signal to the in-ear device for presentation to a user.

An audio processing method implemented by an electronic device includes entering a multi-channel video recording mode, detecting a shooting operation of a user, simultaneously recording, after detecting the shooting operation, a first video image and a second video image using a first camera and a second camera, and recording audio of a plurality of sound channels, where the audio includes panoramic audio, first audio corresponding to the first video image, and second audio corresponding to the second video image. The electronic device further records the first audio based on a feature value such as a zoom magnification corresponding to the first display area.

An audio session management method for an audio environment having multiple audio devices may involve receiving, from a first device implementing a first application and by a device implementing an audio session manager, a first route initiation request to initiate a first route for a first audio session. The first route initiation request may indicate a first audio source and a first audio environment destination. The first audio environment destination may correspond with at least a first person in the audio environment, but in some instances will not indicate an audio device. The method may involve establishing a first route corresponding to the first route initiation request. Establishing the first route may involve determining a first location of at least the first person in the audio environment, determining at least one audio device for a first stage of the first audio session and initiating or scheduling the first audio session.

An electronic device, while displaying a first interface, receives a request to display an audio settings interface. In response, the electronic device displays the audio settings interface, including a first interface element that enables a first audio mode of an audio output device. Displaying the audio settings interface includes: if the first audio mode is enabled and the electronic device is causing audio that is configured for output using the first audio mode to be output using the first audio mode, displaying the first interface element with a first indication that the first audio mode is being used; and if the first audio mode is enabled and the electronic device is not causing audio to be output using the first audio mode, displaying the first interface element without displaying the first indication that the first audio mode is being used.

A method and apparatus are described for synchronization between Bluetooth audio transmitters. In one example, an audio source includes a synchronization bus. A first audio transmitter is coupled to the audio source and to the synchronization bus. The first audio transmitter is configured to assess available radio channels, select a set of radio channels, send transmit commands to a second audio transmitter through the synchronization bus, and to transmit a first set of audio streams from the audio source to a first set of one or more audio sinks using the selected radio channels. The second audio transmitter is configured to receive the transmit commands from the first audio transmitter through the synchronization bus and to transmit a second set of audio streams from the audio source to a second set of one or more audio sinks in accordance with the transmit commands.

Example techniques relate to primary-ambient playback of surround audio by audio playback devices. Example playback devices described herein may include multiple speakers, such as a forward-firing audio transducer and side-firing audio transducers. Using example techniques, such playback devices may perform primary-ambient decomposition to separate surround channels into primary′ and ambient channels. The playback devices play back the ambient channel(s) via the side-firing transducers and the primary channel via the forward-firing transducer.

A sound system capable of reducing the number of speakers required for performing localized reproduction in stereo is provided. A first speaker emits a sound based on an L (2n−1)-th processed acoustic signal with signal processing to make it audible in a first region in an L direction to an L (2n−1)-th acoustic signal and an R (2n)-th processed acoustic signal with signal processing to make it non-audible in a fourth region in an R direction to an R (2n)-th acoustic signal, and a second speaker emits a sound based on an L (2n)-th processed acoustic signal with signal processing to make it non-audible in a second region in an L direction to an L (2n)-th acoustic signal and an R (2n−1)-th processed acoustic signal with signal processing to make it audible in a third region in an R direction to an R (2n−1)-th acoustic signal.

An electronic device including at least one speaker, a communication interface, and at least one processor that is connected with the at least one speaker and the communication interface and controls the electronic device. The processor, when the electronic device is in a first mode, may output one or more first channel signals included in a sound via at least one speaker and control the communication interface to transmit one or more second channel signals in the sound to at least one external speaker, and when the electronic device is in a second mode, mix at least one of the one or more first channel signals and the one or more second channel signals to thereby produce a mixed signal and control the communication interface to transmit the mixed signal to the at least one external speaker.

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.

The present application provides an audio processing method and apparatus, a wireless earphone, and a storage medium. A first wireless earphone receives a first to-be-presented audio signal sent by a playing device, and a second wireless earphone receives a second to-be-presented audio signal sent by the playing device; then, the first wireless earphone performs rendering processing on the first to-be-presented audio signal to obtain a first audio playing signal, and the second wireless earphone performs rendering processing on the second to-be-presented audio signal to obtain a second audio playing signal; and finally the first wireless earphone plays the first audio playing signal, and the second wireless earphone plays the second audio playing signal. Therefore, it is possible to achieve technical effects of greatly reducing the delay and improving the sound quality of the earphone since the wireless earphone can render the audio signals independently of the playing device.

Disclosed herein are systems and methods for power transmission between playback devices, systems and methods for energy harvesting and distribution for audio playback devices, and systems and methods for wirelessly powering wearable audio playback devices.

Some methods may involve receiving a first content stream that includes first audio signals, rendering the first audio signals to produce first audio playback signals, generating first calibration signals, generating first modified audio playback signals by inserting the first calibration signals into the first audio playback signals, and causing a loudspeaker system to play back the first modified audio playback signals, to generate first audio device playback sound. The method(s) may involve receiving microphone signals corresponding to at least the first audio device playback sound and to second through Nth audio device playback sound corresponding to second through Nth modified audio playback signals (including second through Nth calibration signals) played back by second through Nth audio devices, extracting second through Nth calibration signals from the microphone signals and estimating at least one acoustic scene metric based, at least partly, on the second through Nth calibration signals.

A method is provided that is performed at a system including multiple speech collectors to collect speech from a talker to produce corresponding ones of multiple audio signals that each convey speech energy: for each audio signal: separating high-frequency speech energy from low-frequency speech energy; and determining a first energy level of the high-frequency speech energy; and determining a preferred audio signal among the multiple audio signals for subsequent processing at least based on the first energy level of each audio signal.

Examples described herein relate to a charging system for wireless earbuds involving charging adapters that are attachable to the wireless earbuds. In some implementations, the charging adapter is attachable to an external surface of an earbud using a magnetic or mechanical interface that align electrodes of the charging adapter with electrodes on the wireless headset, allowing an internal battery of the earbud to draw current and charge from the charging adapter while the earbud is in-ear. Then, when the internal battery is and recharged using a charging case or wall charger, the charging adapter can be detached from the earbud.

The invention relates to a main sound device and a sound device control method, the main sound device and at least one auxiliary sound device form a surround sound system, and the main sound device comprises a controller configured to send a volume acquisition request used for requesting volume information of the auxiliary sound device; receiving first volume information, wherein the first volume information is used for indicating an output sound pressure level supported by the target auxiliary sound equipment; determining a target sound pressure difference, wherein the target sound pressure difference is a sound pressure level corresponding to the difference between the distance from the main sound box to the user and the distance from the target auxiliary sound box to the user; based on a first audio signal corresponding to the main sound box, the current output sound pressure level of the main sound box, a second audio signal corresponding to the target auxiliary sound box, the first volume information and the target sound pressure difference, determining a third audio signal played by the main sound box based on the current output sound pressure level and a fourth audio signal played by the target auxiliary sound box based on the target output sound pressure level, the sound pressure level when the third audio signal reaches the user and the sound pressure level when the fourth audio signal reaches the user meet the consistency condition.

The invention relates to the technical field of audio driving, in particular to a driving circuit and method and electronic equipment. The method comprises the following steps: arranging two boosting units at the output end of the power amplifier, respectively receiving two paths of signals with opposite phases output by the power amplifier so as to realize that boosted signals output by the two boosting units are also signals with opposite phases, arranging one boosting unit to be connected with the positive electrode of the piezoelectric ceramic module, and arranging the other boosting unit to be connected with the negative electrode of the piezoelectric ceramic module; and the other boosting unit is connected with the negative electrode of the piezoelectric ceramic module, so that the driving voltage of the piezoelectric ceramic module is increased. The boost unit is simple in structure, occupies a small area of a circuit board, and can be effectively applied to miniaturized electronic equipment.

Apparatuses, systems, and techniques are presented to reduce noise in audio. In at least one embodiment, one or more neural networks are used to determine a noise signal in one or more speech signals.

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.

The invention provides a sound effect control method and electronic equipment, and relates to the technical field of terminals. The audios played by the electronic equipment have similar sound effects in different use states, so that the sound effect stability of the electronic equipment is ensured. The method is applied to the folding screen electronic equipment, and comprises the following steps: the electronic equipment plays a first audio with a first sound effect through a first loudspeaker and a second loudspeaker in a first use state, the first loudspeaker performs playing by adopting a first sound effect parameter, and the second loudspeaker performs playing by adopting a second sound effect parameter. And in response to user operation, switching to a second use state, playing the first audio with a second sound effect through the first loudspeaker and the second loudspeaker, the first loudspeaker playing with the third sound effect parameter, and the second loudspeaker playing with the fourth sound effect parameter. The first sound effect parameter is different from the third sound effect parameter, the deviation between the second sound effect and the first sound effect is smaller than a first threshold value, and the first use state and the second use state are related to the folding state of the electronic equipment.

An audio data transmission method and apparatus for a wireless earphone, and a storage medium and a terminal are provided. A play mode adopted by the wireless earphone includes a first play mode and a second play mode, and the method includes: determining whether the first play mode currently adopted by the wireless earphone satisfies a transmission bandwidth required by to-be-played audio data at least based on parameter information of the to-be-played audio data; and based on the first play mode not satisfying the transmission bandwidth required by the to-be-played audio data, transmitting the to-be-played audio data through a connection channel corresponding to the second play mode.

The disclosure describes systems and methods for improving latency for wireless speakers. The system can establish a buffer pipe between a wireless chip of a media player and a wireless chip of a wireless speaker using an inter-IC sound protocol. The system can receive samples of audio data through the media player. The system can communicate the audio data to the wireless speaker using the buffer pipe to bypass the transport layer stack of the media player and the wireless speaker. The system can cause a transmitter of the wireless speaker to provide the audio data to a digital audio converter for output to a speaker of the wireless speaker.

An audio device capable of optimizing operation time of a system and a system connecting a plurality of the audio devices to form the system to optimize the operation time are provided. On the other hand, a method for optimizing operation time of a system connected to audio devices is provided. The provided audio device, system, and method for operation time optimization can achieve increase playback time of the entire system by using power consumption condition information of each device as a reference.

A first electronic device and a method for controlling functional parameters and rendering operational preview of a second electronic device are provided. The first electronic device receives a user input indicative of control commands to operate the second electronic device associated with first electronic device. The first electronic device determines a requested set of changes in the value of a functional parameter, based on the received user input. The first electronic device controls the second electronic device to operate based on the determined requested set of changes. The first electronic device or the second electronic device is controlled to render a first operational preview associated with the determined requested set of changes, based on the control of the second electronic device.

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.