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US 2014/0349638 A1Published application
Signal processing control in an audio device
AssigneeBroadcom Corporation
InventorsTaro Umezawa, Franck Beaucoup
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Abstract
Methods, systems, and apparatus for controlling audio signal processing are described herein. In accordance with certain embodiments, a measure of coupling between at least one microphone and one speaker associated with an audio device is obtained. The measure of coupling may be used to control audio signal processing, such as sidetone generation and application of multi-channel decorrelation to the audio signal.
Claims20
A method for controlling sidetone generation in a telephony device, comprising:
- obtaining a measure of coupling between at least one speaker integrated with or communicatively connected to the telephony device and at least one microphone integrated with or communicatively connected to the telephony device;
- and
- controlling generation of a sidetone for playback via the at least one speaker based on the measure of coupling.
A method for controlling multi-channel decorrelation in an audio device, comprising:
- obtaining a measure of coupling between one or more speakers integrated with or communicatively connected to the audio device and at least one microphone integrated with or communicatively connected to the audio device;
- and
- controlling application of multi-channel decorrelation to audio signals to be played back via the one or more speakers based on the measure of coupling.
An audio device, comprising:
- handshaking logic configured to receive one or more messages from one or more audio playback devices to which the audio device is communicatively connected and to extract product information about the one or more audio playback devices from the one or more messages;
- and
- receive signal processing logic that is configured to selectively modify one or more audio signals to be played back via the one or more audio playback devices based at least on the product information.
Dependencies are inferred from the claim text.