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Self-calibration loudspeaker system

  • US 9,560,460 B2
  • Filed: 11/04/2013
  • Issued: 01/31/2017
  • Est. Priority Date: 09/02/2005
  • Status: Active Grant
First Claim
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1. A loudspeaker comprising:

  • at least one speaker;

    at least one audio input configured to receive an audio signal used to drive the at least one speaker;

    a network interface configured to form a communication link to at least one other loudspeaker to form a group of loudspeakers operable in a loudspeaker network, each loudspeaker in the group of loudspeakers being uniquely identified in the loudspeaker network by a unique identifier, where each loudspeaker in the group of loudspeakers is configured to provide the unique identifier; and

    a network calibration controller configured to coordinate control of the loudspeaker network and to perform at least one calibration function for each loudspeaker in the group of loudspeakers in accordance with a respective unique identifier and corresponding location of each loudspeaker in the group of loudspeakers,where the network calibration controller is further configured to identify the corresponding location of each loudspeaker in the group of loudspeakers based on the unique identifier, andwhere the at least one calibration function includes a sound pressure equalization function to at least one of adjust a signal attenuation and a gain of each loudspeaker for the group of loudspeakers so that a sound pressure level of each speaker is the same at a microphone.

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