System and method for microphone gain adjust based on speaker orientation

  • US 7,130,705 B2
  • Filed: 01/08/2001
  • Issued: 10/31/2006
  • Est. Priority Date: 01/08/2001
  • Status: Expired due to Fees
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First Claim
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1. A digital processor programmed to undertake logic for dynamically establishing a gain of an audio system, the logic being stored on a computer readable medium and executable by the digital processor to implement a method including:

  • receiving a video stream representative of at least one person and at least one microphone;

    deriving person-microphone position signals using the video stream;

    using at least some of the person-microphone position signals, generating audio gain adjust signals for input thereof to the audio system;

    recording at least one calibration person-microohone position signal;

    recording at least one calibration audio level contemporaneously with the calibratiotperson-microphone position signal;

    using the calibration signal and calibration level, generating at least one mapping correlating head orientations to respective gain adjust percentages; and

    at least in part using the gain adjust percentages, establishing an audio gain of the audio system.

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