199results about "Loudspeaker signals distribution" patented technology

The present invention provides a method for processing music audio data, comprising the steps of providing input audio data representing a first piece of music containing a mixture of predetermined musical timbres, decomposing the input audio data to generate at least a first audio track representing a first musical timbre selected from the predetermined musical timbres, and a second audio track representing a second musical timbre selected from the predetermined musical timbres, applying a predetermined first audio effect to the first audio track, applying no audio effect or a predetermined second audio effect, which is different from the first audio effect, to the second audio track, and obtaining recombined audio data by recombining the first audio track with the second audio track.

A method for audio processing performed by an electronic device is provided. The method includes detecting at least one of a first voice activity near a first device and a second voice activity near a second device using a voice recognition module associated with the first device, comparing the first voice activity and the second voice activity to determine whether the first voice activity and the second voice activity exceed a predetermined threshold, and outputting the at least one of the first voice activity or the second voice activity through the second device in response to determining that the first voice activity and the second voice activity exceed the predetermined threshold.

This invention discloses a sound-generating device and a display device, relating to the field of subwoofer technology. The sound-generating device includes a housing and two sound-generating units. The housing contains an independent first cavity and a second cavity, the first cavity having a larger volume than the second cavity. The first cavity communicates with the outside through a first opening on the housing, and the second cavity communicates with the outside through a second opening on the housing. The two sound-generating units are respectively installed at the first opening and the second opening. The technical solution provided by this invention uses two cavities of different sizes. The cavity with a smaller volume has a higher resonant frequency, resulting in a more powerful bass response; while the cavity with a larger volume has a lower resonant frequency, resulting in a more deep bass response. These two elements complement each other to create a deep and powerful bass performance, achieving the technical effect of satisfying both low-frequency depth and bass power in the sound-generating device.

This application provides a method for controlling a vehicle, a device for controlling a vehicle, and a vehicle. The method relates to the field of vehicle control technology. The vehicle is equipped with a speaker array; the method includes: acquiring first position information of each speaker in the speaker array and second position information of a target object around the vehicle; determining audio output parameters of each speaker based on the first position information of each speaker and the second position information of the target object; and controlling each speaker to output a target audio signal based on the audio output parameters, the target audio signal being used to warn the target object. This method can improve the warning effect of the vehicle on the target object.

To provide a signal processing device capable of suppressing providing unpleasant vibrations to a person seated on a seat.SOLUTION: A signal processing device 40 is for playing back a musical piece from one or more speakers and one or more actuators provided in a seat 100. The signal processing device 40 includes an acquiring unit 50 for acquiring data of the musical piece and an output unit 60 for outputting a sound signal in a first frequency band included in the data of the musical piece to the one or more actuators and outputting a sound signal in a frequency band excluding the first frequency band included in the data of the musical piece to the one or more speakers. The first frequency band is a band including a resonance frequency of the one or more actuators.SELECTED DRAWING: Figure 5

The present invention provides a sound adjustment device and sound supply system that, in addition to allowing the user to hear sound waves, produce corresponding effects based on the user's physiological state. [Solution] In the sound supply system 50, the sound adjustment device 100 includes an audio signal receiving member 110, a frequency adjuster 130, and an output port 140. The audio signal receiving member is used to receive audio signals. The frequency adjuster is signal-connected to the audio signal receiving member and is used to adjust the audio signals into a left ear audio signal and a right ear audio signal. The first frequency of the left ear audio signal and the second frequency of the right ear audio signal have a frequency difference. The frequency difference is determined by the frequency adjuster. The output port is used to connect earphones 10, and the left ear audio signal is output to the left ear speaker 12 of the earphones, and the right ear audio signal is output to the right ear speaker 14 of the earphones.

The present disclosure relates to an acoustic output device including: a housing; a first speaker disposed in the housing and acoustically coupled to two holes disposed in the housing, respectively, to output a first sound wave and a second sound wave with a phase differences; a second speaker disposed in the housing and acoustically coupled to a hole provided on the housing to output a third sound wave; a processing circuit configured to provide a first electrical signal to the first speaker and provide a second electrical signal to the second speaker. There is an amplitude difference and / or a phase difference between the first electrical signal and the second electrical signal in a target frequency range to make a far-field radiated sound of the acoustic output device exhibit at least one directional sound pressure distribution.

The disclosure relates to the technical field of sound-electricity conversion, and discloses a speaker assembly, a seat, and an electronic device, which can realize directional sound emission of audio and has a simple structure. The speaker assembly includes a mounting body, a plurality of dipole speaker units, and a control unit. The plurality of dipole speaker units are disposed inside the mounting body and are configured to form a dipole sound source to achieve directional sound emission. The control unit is electrically connected with each dipole speaker unit of the plurality of dipole speaker units and configured to control at least one control parameter for the dipole speaker unit of the plurality of dipole speaker units to adjust a sound field of the dipole speaker unit in a preset region.

The application discloses a Bluetooth earphone system, which comprises a charging bin and at least one Bluetooth earphone body accommodated in the charging bin, and a separable electric connection structure is arranged between the charging bin and the Bluetooth earphone body; the charging bin comprises a Bluetooth audio module, an analog audio interface module and a charging interface module; the Bluetooth audio module is integrated with an analog-digital conversion module and a wireless communication module; the charging interface module is integrated with a digital audio interface module connected with the Bluetooth audio module; the analog audio interface module and the digital audio interface module are connected with a non-Bluetooth audio device through signal lines; analog audio signals output by the non-Bluetooth audio device are converted into digital signals, and / or digital audio signals output by the non-Bluetooth audio device are processed by the digital audio interface module, and then the analog audio signals and the digital audio signals are wirelessly transmitted to the Bluetooth earphone body by the Bluetooth audio module. Thus, a user wearing the Bluetooth earphone body can realize wireless monitoring of the non-Bluetooth audio device, the operation is simple, and user experience is improved.

A device which is configured to receive a signal from a mobile device, pass that signal through to an automobile head unit, filter out and decode some audio-related information from the signal the device receives from the mobile device, and pass that audio-related information to a portable speaker. Preferably, a delay is calculated and added, either by the device or by the portable speaker, such that audio that emits from the portable speaker is synchronized with audio that emits from the head unit.

A wearable device (3) comprises a housing (11), a first loudspeaker driver (12) and a second loudspeaker driver (13), wherein both loudspeaker drivers (12, 13) are integrated within the housing (11) and arranged to project sound into the surrounding environment. Furthermore, the first loudspeaker driver (12) is closer to a wall (17) of the housing (11) than the second loudspeaker driver (13), and the first loudspeaker driver (12) and the second loudspeaker driver (13) share a common back volume (14) within the housing (11).

Methods and systems for configuring an acoustic device network are provided. In one example, a method comprises: connecting a first device (e.g., a mobile device with audio control software) and a second device (e.g., a primary audio device) to a network; transmitting a first audio signal with a third device (e.g., a secondary audio device), wherein the first audio signal is encoded with a network address of the third device. This first audio signal may be detected and the network address decoded on the second device; the second device may transmit a connection request to the first device; in response to a confirmation of connection received by the first device, a second audio signal may be transmitted with the second device, wherein the second audio signal is encoded with network credentials of the network; this second audio signal may be detected and the network credentials decoded with the third device.

Aspects provide methods of audio reproduction including determining dynamic position information including positions of one or more loudspeakers and / or a listener within the local reproduction system relative to a reference point. A method includes automatically applying one or more adaptive sweetspot parameters to an audio signal based on the dynamic position information and automatically controlling a directivity of the one or more loudspeakers based on the dynamic position information and the one or more adaptive sweetspot parameters. A method includes determining a directivity of the loudspeaker within the local reproduction system based on the dynamic position information and automatically enabling or disabling an adaptive sweetspot function based on the directivity of the loudspeaker. The methods include rendering the corrected audio signal to the local reproduction system based on the directivity of the one or more loudspeakers and the adaptive sweetspot parameters.

To provide a system and method for presenting spatial audio for suitable interactive audio environments.SOLUTION: Provided is an audio mixing system 800 for presenting an output audio signal to a listener located at a first location in a virtual environment. For each sound source of a plurality of sound sources 810 in the virtual environment, a respective first intermediate audio signal corresponding to an input audio signal is determined based on a location of the respective sound source in the virtual environment and the respective first intermediate audio signal is associated with a first bus 840. For each sound source of the plurality of sound sources in the virtual environment, a respective second intermediate audio signal is determined. The respective second intermediate audio signal corresponds to reverberation of the input audio signal in the virtual environment, is determined based on the location of the respective sound source and further based on an acoustic property of the virtual environment, and is associated with a second bus 830. The output audio signal is presented to the listener via the first bus and the second bus.SELECTED DRAWING: Figure 8

Systems, methods, apparatus, and articles of manufacture to control audio playback devices are disclosed. An example method includes receiving (1302) first audio information from a first audio information source; generating (1304) audio signals based on the received first audio information from the first audio information source; receiving (1306) a source command from a user input device to change to a second audio information source; and in response to the source command: changing (1308) a signal source to the second audio information source and sending (1310) a volume message to the first audio information source to change a volume setting of the first audio information source.

The application discloses a sound automatic tuning method and system based on intelligent sensors, and relates to the technical field of sound control, comprising the following steps: collecting sound field data of each intelligent sensor in a target sound field and sound system tuning parameters, dividing each intelligent sensor into zones according to the response of each channel, and obtaining sound field results corresponding to each zone; comparing the sound field results with contrast results after tuning is completed, calculating the change and determining the change source; classifying and storing the change record, judging continuity and consistency, and generating an adjustment instruction; modifying the gain value, equalization parameter or delay parameter in the corresponding zone according to the adjustment instruction, and verifying the modified sound field results; the method can relatively reduce the dependence on artificial tuning judgment, and improve the continuity, stability and consistency of tuning decision under dynamic sound field conditions.

Aspects provide methods of audio reproduction including determining dynamic position information including positions of one or more loudspeakers and / or a listener within the local reproduction system relative to a reference point. A method includes automatically applying one or more adaptive sweetspot parameters to an audio signal based on the dynamic position information and automatically controlling a directivity of the one or more loudspeakers based on the dynamic position information and the one or more adaptive sweetspot parameters. A method includes determining a directivity of the loudspeaker within the local reproduction system based on the dynamic position information and automatically enabling or disabling an adaptive sweetspot function based on the directivity of the loudspeaker. The methods include rendering the corrected audio signal to the local reproduction system based on the directivity of the one or more loudspeakers and the adaptive sweetspot parameters.

According to an embodiment, a processor of a wearable device is configured to control a display to display a visual object in association with an external object viewable through a display. The processor is configured to identify whether an acoustic signal is output from an external object, in response to receiving the acoustic signal having a first volume while displaying the visual object, through a microphone of the wearable device, based at least on an image obtained by a camera. Based on identifying that the acoustic signal is output from the external object, the processor is configured to obtain a second volume corresponding to the visual object, by adjusting the first volume based on a position relationship between the external object and the visual object. The processor is configured to output an audio signal corresponding to the visual object through a speaker of the wearable device based on the obtained second volume.

Various embodiments disclose techniques for generating one or more sound zones and a quiet zone in a listening environment. The techniques include configuring one or more filters of a filter bank, generating a respective speaker signal for each of one or more speakers by processing a respective audio zone signal for each of one or more sound zones using the filter bank, and outputting the respective speaker signals using the one or more speakers. Sound output by the one or more speakers propagates through a listening environment to generate respective sound in each of the one or more sound zones corresponding to the respective audio zone signal for that sound zone. The sound output by the one or more speakers propagates through the listening environment to generate a first quiet zone.

An exemplary process for wirelessly streaming audio data to a head-mounted display (HMD) with low latency and reduced auditory distortion is described. This includes determining one or more statistics indicating the latency associated with audio data wirelessly received by the HMD and stored in a buffer within the HMD, and determining, at least in part, to adjust the size of the buffer based on these statistics. To reduce the buffer size, segments of audio data can be replaced with synthesized audio data segments to obtain modified audio data in the buffer. To increase the buffer size, synthesized audio data segments can be added to the audio data to obtain modified audio data in the buffer. Audio content can then be output via one or more speakers of the HMD, at least in part, based on the modified audio data.

Disclosed herein are devices (e.g., audio playback devices) configured to transmit and / or receive wireless power. Wireless power can be transferred using mid-range or long-range techniques, such as electromagnetic radiation (e.g., lasers, microwaves) or electromagnetic coupling (e.g., inductive coupling, capacitive coupling). Device performance and / or power transmission may be modified dynamically based on wireless power levels, user behavior, the behavior of other devices, device grouping, or other parameters.

Smart glasses, method and device for automatic volume control, and smart glasses system are provided. The smart glasses include: a glasses body, and a wireless communication module, microphone(s) and speaker(s) provided on the glasses body. The wireless communication module has a processor connected to the microphone(s) and the speaker(s). The microphone(s) transmit a picked up audio signal to the processor. The processor determines whether the audio signal is a noise signal, calculates a noise level of the noise signal when the audio signal is the noise signal, and adjusts an output volume of the speaker(s) to an output volume corresponding to the noise level of the noise signal according to a preset corresponding relationship between noise levels and output volumes of the speaker(s). The present application can automatically adjust the output volume according to the noise level, and improve the intelligence of smart glasses and convenience of user action.

A system and method for an audio system for a vehicle comprises a main unit configured to communicate audio signals via at least one bus, wherein the at least one bus comprises a first master bus, the first master bus comprising a first plurality of nodes; a first master transceiver corresponding to a node of the first plurality of nodes; a control unit, the control unit being configured to generate control signals for coordinating at least some of the audio signals; a digital signal processor (DSP) associated with the control unit and the first master transceiver; and a second master transceiver corresponding to a starting node of a second plurality of nodes encompassed by a second master bus, the second plurality of nodes being connected to the first plurality of nodes via the node.

A connection method for an audio playback apparatus group, the audio playback apparatus group including a first audio playback apparatus and a second audio playback apparatus each sharing a first address and a second address, and the connection method including establishing a first connection between the first audio playback apparatus and the second audio playback apparatus using the first address, the first connection being based on a first Bluetooth mode, establishing, by the first audio playback apparatus, a second connection and a third connection with a first audio source device using the second address, the second connection being based on the first Bluetooth mode, and the third connection being based on a second Bluetooth mode, and establishing, by the second audio playback apparatus, a fourth connection with the first audio source device using the first address, the fourth connection being based on first Bluetooth mode.

The invention is entitled "Method and system for seamless media synchronization and switching." A method performed by a portable media player device is disclosed. The method receives a microphone signal that includes audio content output by an audio playback device via a loudspeaker. The method determines identifying information about the audio content, where the identifying information is determined through acoustic signal analysis of the microphone signal. In response to determining that the audio playback device has ceased outputting the audio content, the method retrieves an audio signal corresponding to the audio content from a local memory of the portable media player device or a remote device communicatively coupled thereto, and uses the audio signal to drive a speaker that is not part of the audio playback device to continue outputting the audio content and any additional audio content related to the audio content.