A method for feedforward noise cancellation in an enclosed space within a structure is provided. The method comprises placing a microphone array inside an inner surface of the enclosed space and conducting modal testing on an outside surface of the enclosed space, wherein the modal testing comprises multiple incoherent noise sources corresponding to locations of microphones in the microphone array. Noise generated by the modal testing is processed to create a number of acoustic mathematical models of the enclosed space. In response to incoherent noise within the enclosed space, a noise canceling signal is generated according to an output of the mathematical models.

Described herein is a system for recalibrating an audio configuration for mobile or moving devices. The system may configure a multi-device output group to generate synchronous output audio using multiple devices. For example, the output group may include a first device generating a first portion of output audio corresponding to a first channel and a second device generating a second portion of the output audio corresponding to a second channel. If the second device detects motion and/or movement indicating a change in its location, the system may recalibrate the output group to continue generating the output audio without the second device. For example, the first device or a new device can generate the second portion of the output audio instead of the second device. When the second device returns, the system can recalibrate the output group to include the second device again.

The invention discloses a smart loudspeaker, wherein the smart loudspeaker includes a voice input module, a language recognition module and at least two voice assistants, and the language recognition module receives a voice information from the voice input module and determines the language category based on the voice information and activates the voice assistant corresponding to the language category.

A stereo sound pickup method and apparatus, a terminal device, and a computer-readable storage medium. The method includes configuring a terminal device to record a video, wherein the terminal device comprises a plurality of microphones, configuring the plurality of microphones to capture a sound, and forming a stereo beam based on the captured sound. The stereo beam is related to a video recording scenario of the terminal device, and the video recording scenario includes a posture of the terminal device and usage of a camera, the posture includes that the terminal device is in a landscape mode or a portrait mode, and the usage of the camera includes that a rear-facing camera is used or a front-facing camera is used.

Acoustic microphone array systems including arrays of microphones placed on a printed circuit board or other substrate in asymmetric patterns. A plurality of additional non-microphone components also reside on the board. The asymmetric placement of the microphones in the array provides flexibility in physically accommodating the additional non-microphone components.

A method, system, server and device are disclosed. According to one or more embodiments, a server is provided. A first audio track is received which includes first audio originating from a premises client at a premises location. A second audio track is received which includes second audio originating from a remote client. A first pan angle is determined for the first audio track and a second pan angle is determined for the second audio track. The second pan angle is different from the first pan angle. A stereo composite track is generated based on the first pan angle and the second pan angle, where the stereo composite track includes the first audio track and the second audio track.

According to an embodiment, an electronic device may comprise: a flexible display, at least one microphone, a sensor, a communication module comprising communication circuitry, and at least one processor operatively connected with the flexible display, the at least one microphone, the sensor, and the communication module. The at least one processor may be configured to: based on receiving a call signal from an external electronic device through the communication module, identify whether the call signal is a video call signal, based on the call signal being the video call signal, identify a folding state of the electronic device through the sensor, adjust a sound signal received through the at least one microphone based on the folding state, and control the communication module to transmit the adjusted sound signal to the external electronic device.

The present disclosure provides a microphone including at least one acoustoelectric transducer and an acoustic structure. The acoustoelectric transducer is configured to convert a sound signal to an electrical signal. The acoustic structure includes a sound guiding tube and an acoustic cavity. The acoustic cavity is in acoustic communication with the acoustoelectric transducer, and is in acoustic communication with outside of the microphone through the sound guiding tube. The acoustic structure has a first resonance frequency, the acoustoelectric transducer has a second resonance frequency, and an absolute value of a difference between the first resonance frequency and the second resonance frequency is not less than 100 Hz. By disposing different acoustic structures, resonance peaks in different frequency ranges may be added to the microphone, which improves a sensitivity of the microphone near multiple resonance peaks, thereby improving a sensitivity of the microphone in the entire wide frequency band.

This disclosure describes an apparatus and method of an embodiment of an invention that is improves Direction of Arrival (DOA) determinations. This embodiment of the apparatus includes a plurality of microphones coupled together as a microphone array used for beamforming, the plurality of microphones are positioned at predetermined locations and produce audio signals to be used to form a directional pickup pattern; a processor, memory, storage, and a power supply operably coupled to the microphone array, the processor configured to execute the following steps: processing an algorithm for a Direction of Arrival (DOA) determination; supplemental processing that improves the DOA processing.

A vehicular alert system a microphone disposed at a vehicle. The vehicular alert system, responsive to processing of audio data captured by the microphone, determines an audio event occurring external of the vehicle. The vehicular alert system, responsive to determination that the audio event occurred external of the vehicle, generates an alert for an occupant of the vehicle. The alert includes vibration of a seat of the vehicle and the alert includes a visual alert at a display screen disposed within the vehicle and viewable by a driver of the vehicle. The visual alert indicates direction toward the determined audio event.