[Problem] To propose a mechanism capable of performing a noise cancellation process in an ear hole opening type audio processing device. [Solution] An audio processing device including: an audio information acquisition unit that acquires audio information; a holding unit that abuts on a cavum concha or an inner wall of an ear canal and holds the audio information acquisition unit in a space closer to an eardrum side than a tragus, in a state of being worn by a user; an opening portion that opens an ear hole to an outside; and a signal processing unit that generates a noise cancellation signal based on the audio information acquired by the audio information acquisition unit.

Methods, systems, computer-readable media, and apparatuses for audio signal processing are presented. Some configurations include determining that first audio activity in at least one microphone signal is voice activity; determining whether the voice activity is voice activity of a participant in an application session active on a device; based at least on a result of the determining whether the voice activity is voice activity of a participant in the application session, generating an antinoise signal to cancel the first audio activity; and by a loudspeaker, producing an acoustic signal that is based on the antinoise signal. Applications relating to shared virtual spaces are described.

Active noise cancellation systems and methods include a feedforward path configured to receive a reference signal comprising ambient noise and adaptively generate an anti-noise signal to cancel the ambient noise and comprising an adaptive gain component configured to adaptively adjust a gain of the anti-noise signal, and a logic device configured to determine a leakage profile based on the adaptive gain component. The feedforward path includes a feedforward adaptive filter tuned to generate the anti-noise signal corresponding to the reference signal in accordance with the determined leakage profile. The leakage profile is selected from a plurality of stored leakage profiles that are tuned for a corresponding gain, and which corresponds to an ear coupling condition associated with a fit between the active noise cancellation system and a user. An adaptive transparency filter receives the reference signal and generates an ambient inclusion signal for output to a user.

A noise suppressor includes a memory; and a processor coupled to the memory, the processor is configured to: acquire a noise signal in a vicinity of a head region of an occupant seated in a vehicle seat; generate a control sound having an opposite phase to the acquired noise signal; acquire a sound signal having a predetermined frequency that is different from the noise signal; and output, as an output sound signal, the acquired sound signal in combination with the generated control sound.

A controlling method of a wearable electronic apparatus includes: receiving, by an IMU sensor, a bone conduction signal corresponding to vibration in the user's face, while the wearable electronic apparatus is operated in an ANC mode; identifying a presence or an absence of the user's voice based on the bone conduction signal, based on the identifying the presence of the user's voice, controlling an operation mode of the wearable electronic apparatus to be a different operation mode from the ANC mode; while the wearable electronic apparatus is operated in the different operation mode, identifying presence or absence of the user's voice based on the bone conduction signal, and based on the absence of the user's voice being identified for a predetermined time while the wearable electronic apparatus is operated in the different operation mode, controlling the different operation mode to return to the ANC mode.

An illustrative controller includes: a transmitter to drive the acoustic transducer to generate acoustic bursts; a receiver to sense a response of the acoustic transducer to echoes; and a processing circuit coupled to the transmitter and to the receiver, the processing circuit configured to convert said received response into output data by: correlating said response to a driving signal to obtain a correlation response; distinguishing peak areas from non-peak areas in said correlation response; deriving a noise level in a portion of said correlation response based on the non-peak areas within said portion; calculating a signal to noise ratio (SNR) for a peak signal within the portion as a ratio of a peak value for the peak signal to the noise level in said portion of said correlation response; and accepting the peak signal as an echo only if the SNR for said peak signal exceeds a predetermined threshold.

A method and an apparatus for noise reduction, an electronic device, and a storage medium are disclosed. The method includes: generating a reference noise signal by picking up external noise; identifying a keyword in the reference noise signal, and determining a direction of desired speech based on the identified keyword; extracting a desired speech signal in the direction of desired speech, and acquiring an unwanted noise signal by filtering out the desired speech signal from the reference noise signal; and generating inverse noise by filtering the unwanted noise signal, to cancel the external noise. Thus, this method not only makes it convenient for users to receive desired speech by effectively extracting the desired speech, but also improves the noise reduction effect by eliminating the unwanted noise.

The present technology relates to a headphone and a reproduction control method that enable external sound to be caught more easily and promptly, and a program. The headphone includes: a sound collecting unit configured to collect outer sound; a detection unit configured to detect a specific motion to a sensor unit for capture of the outer sound; and a reproduction control unit configured to cause, in a case where the specific motion is detected, the outer sound collected by the sound collecting unit to be reproduced and volume of audio under reproduction to be reduced or the reproduction of the audio to stop. The present technology can be applied to, for example, a headphone.

An adaptive noise filtering system and method detect sounds using a sensor onboard a vehicle system. A value of a signal associated with operation of the vehicle system is determined. One or more sounds detected by the sensor are filtered out based on the value of the signal that is determined. Operation of the vehicle system may be controlled using the remaining sound(s).

Aspects of the present disclosure provide techniques, including devices and system implementing the techniques, to provide feedback to a user of an event when the user is wearing a wearable device. For example, the wearable device may provide high quality noise canceling audio playback to the user, lowering the user's situation awareness. The techniques include measuring ambient sound using two or more microphones on the wearable device. The event is determined based on the measured ambient sound. A location attribute of the event is determined. A deep learning algorithm may be used to identify the nature and/or classification of the event and rule out events that the user prefers to ignore. Upon determining the event that merits the user's attention, the user is provided feedback of the determined event and the location attribute, the feedback indicating the nature and location of the event.