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Method for detection of own voice activity in a communication device

  • US 20060262944A1
  • Filed: 02/04/2004
  • Published: 11/23/2006
  • Est. Priority Date: 02/25/2003
  • Status: Active Grant
First Claim
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1. Method for detection of own voice-activity in a communication device whereby one or both of the following set of actions are performed, A:

  • providing at least two microphones at an ear of a person, receiving sound signals by the microphones and routing the signals to a signal processing unit wherein the following processing of the signal takes place;

    the characteristics, which are due to the fact that the microphones are in the acoustical near-field of the speaker'"'"'s mouth and in the far-field of the other sources of sound are determined, and based on this characteristic it is assessed whether the sound signals originates from the users own voice or originates from another source, B;

    providing at least a microphone at each ear of a person and receiving sound signals by the microphones and routing the microphone signals to a signal processing unit wherein the following processing of the signals takes place;

    the characteristics, which are due to the fact that the user'"'"'s mouth is placed symmetrically with respect to the user'"'"'s head are determined, and based on this characteristic it is assessed whether the sound signals originates from the users own voice or originates from another source.

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