Intel Corporation

Infineon Technologies Ag

Intel Mobile Communications Gmbh

Intel Deutschland Gmbh

Intel IP Corporation

Christophe Beaugeant

Ludovick Lepauloux

Peter Vary

Nicholas Evans

Christelle Yemdji

Christoph Nelke

Jerome Parron

Fabrice Plante

Philippe Weingertner

Navin Chatlani

Eric Serre

Marco Jeub

Christian Herglotz

Philippe Degry

An audio processing device is described comprising an energy distribution determiner configured to determine an energy distribution of a sound and an acoustical environment determiner configured to determine based on the energy distribution whether the sound includes a sound caused by the acoustical environment.

Audio processing devices and audio processing methods

The disclosure relates to methods and devices for controlling speech quality, in particular by controlling end-to-end latency and by improving speech quality in case of mobility scenarios. A methodfor controlling end-to-end latency between receiving and processing audio frames includes: receivinga data packet comprising at least one coded audio frame; storingthe received data packet in a packet buffer; retrievingthe received data packet from the packet buffer and decoding the at least one coded audio frame into audio samples; and processingthe audio samples, wherein a scheduling of retrievingthe received data packet from the packet buffer and decoding the at least one coded audio frame is based on a target criterion with respect to audio quality of the audio samples and latency between receiving the data packet and processing the audio samples, and wherein the scheduling is dynamically and smoothly shifted in time in order to avoid audio distortions.

Methods and devices for controlling speech quality

An audio processing device includes a first microphone configured to receive a first signal a second microphone configured to receive a second signal, a noise reduction gain determination circuit configured to determine a noise reduction gain based on the first signal and the second signal, a noise reduction circuit configured to attenuate the first signal based on the determined noise reduction gain, and an output circuit configured to output the attenuated signal.

Audio processing circuit and method for reducing noise in an audio signal

A method for processing audio signals is provided comprising outputting an audio signal; receiving the output audio signal via a first receiving path as a first received audio signal; receiving the output audio signal via a second receiving path as a second received audio signal; determining an echo suppression gain based on the first received audio signal and the second received audio signal; and filtering echo suppression of the audio signal based on the first received audio signal and the echo suppression gain.

Methods for processing audio signals and circuit arrangements therefor

A method for processing an audio signal is described comprising receiving a first audio signal via a first receiving path comprising a first microphone; receiving a second audio signal via a second receiving path comprising a second microphone; and performing echo suppression of the first audio signal based on the first audio signal and the second audio signal.

Method for processing an audio signal and audio receiving circuit

A method, system, and computer program product for managing noise in a noise reduction system, comprising: receiving a first signal at a first microphone; receiving a second signal at a second microphone; identifying noise estimation in the first signal and the second signal; identifying a transfer function of the noise reduction system using a ratio of a power spectral density of the second signal minus the noise estimation to a power spectral density of the first signal, wherein the noise estimation is removed from only the power spectral density of the second signal; and identifying a gain of the noise reduction system using the transfer function.

Noise reduction for dual-microphone communication devices

An apparatus may include a noise estimation unit configured to determine a noise spectrum associated with a noise signal, and generate a filter based on the determined noise spectrum. The apparatus may also include a noise synthesis unit configured to generate a colored noise using the filter generated by the noise estimation unit. The apparatus may be incorporated in an echo canceller.

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Mouans Sartoux, France

Christophe Beaugeant