Customized sound field for increased privacy
AssigneeFacebook Technologies, LLC
InventorsAntonio John Miller, Jacob Ryan Donley, Scott Porter
Life of this patent
Estimating the term…
Abstract
An audio system for customizing sound fields for increased user privacy. A microphone array of a headset detects sounds from one or more sound sources in a local area of the headset. The audio system estimates array transfer functions (ATFs) associated with the sounds, and determines determining sound field reproduction filters for a loudspeaker array of the headset using the ATFs. The audio system presents audio content, via the loudspeaker array, based in part on the sound field reproduction filters. The presented audio content has a sound field that has a reduced amplitude in a first damped region of the local area that includes a first sound source of the one or more sound sources.
Claims20
A method comprising:
- receiving sounds detected by a microphone array from one or more sound sources in a local area of the microphone array;
- estimating array transfer functions (ATFs) associated with the sounds;
- determining sound field reproduction filters for a loudspeaker array using the ATFs;
- and
- providing the sound field reproduction filters to the loudspeaker array, wherein audio content presented according to the sound field reproduction filters has a sound field that has a reduced amplitude in a first damped region of the local area.
A non-transitory computer-readable storage medium storing instructions that, when executed by a processor, cause the processor to perform operations comprising:
- receiving sounds detected by a microphone array from one or more sound sources in a local area of the microphone array;
- estimating array transfer functions (ATFs) associated with the sounds;
- determining sound field reproduction filters for a loudspeaker array using the ATFs;
- and
- providing the sound field reproduction filters to the loudspeaker array, wherein audio content presented according to the sound field reproduction filters has a sound field that has a reduced amplitude in a first damped region of the local area.
Dependencies are inferred from the claim text.