Virtual microphone calibration based on displacement of the outer ear
AssigneeFacebook Technologies, LLC
InventorsPablo Francisco Faundez Hoffmann, Peter Gottlieb, Morteza Khaleghimeybodi
Life of this patent
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Abstract
An audio system calibrates a virtual microphone using displacement of an outer ear of a user. A transducer presents audio content to the user. One or more sensors monitor displacement of a portion of a pinna of the user. The displacement may be caused in part by the presented audio content. The audio system estimates a sound pressure at an entrance to an ear canal of the user based on the monitored displacement of the portion of the pinna, generates a sound filter accordingly, and adjusts audio content using the sound filter. The transducer presents the adjusted audio content to the user, thereby improving the user's auditory experience.
Claims20
A method comprising:
- presenting, via a transducer, audio content to a user;
- monitoring, via one or more sensors, displacement of a portion of a pinna of the user, the displacement caused in part by the presented audio content;
- estimating a sound pressure at an entrance to an ear canal of the user based on the monitored displacement of the portion of the pinna;
- generating a sound filter for the transducer using the estimated sound pressure at the entrance to the ear canal;
- adjusting audio content using the generated filter;
- and
- presenting, via the transducer, the adjusted audio content to the user.
An audio system comprising:
- a transducer configured to present audio content to a user;
- one or more sensors configured to measure displacement of a portion of a pinna of the user, the displacement caused by the presented audio content;
- and
- a controller configured to:
- estimate a sound pressure at an entrance to an ear canal of the user based on the monitored displacement of the portion of the pinna;
- generate a sound filter for the transducer using the estimated sound pressure at the entrance to the ear canal;
- adjust audio content using the generated filter;
- and
- instruct the transducer to present the adjusted audio content to the user.
Dependencies are inferred from the claim text.