Method, apparatus and computer-readable media utilizing positional information to derive agc output parameters

Abstract

Method and apparatus for automatic gain control utilizing sound source position information in a shared space having a plurality of microphones and a plurality of sound sources. Sound signals are received from the microphones. One or more processors locate position information corresponding to each of the sound sources. The processor(s) determine the distance to each of the sound sources from each of the microphones. The processor(s) define a predetermined gain weight adjustment for each of the microphones. The processor(s) apply the defined weight adjustments to the microphones to achieve a consistent volume of the desired plurality of sound sources. The processor(s) maintain a consistent ambient sound level regardless of the position of the sound sources and the applied gain weight adjustments. The processor(s) output a summed signal of the sound sources at a consistent volume with a constant ambient sound level across the plurality of sound source positions.

What is claimed is: 
     
         1 . A method of automatic gain control utilizing sound source position information in a shared space having a plurality of microphones and a plurality of sound sources, comprising:
 receiving sound signals from the plurality of microphones;   locating, using one or more processors, position information corresponding to each of the plurality of sound sources in the shared space;   determining, using the one or more processors, the distance to each of the plurality of sound sources from each of the plurality of the microphones in the shared space, based on the position information;   defining, using the one or more processors, a predetermined gain weight adjustment for each of the plurality of microphones, based on the distance information;   applying the defined plurality of gain weight adjustments to the plurality of microphones in order to achieve a consistent volume of a desired plurality of sound sources in the shared space;   maintaining, using the one or more processors, a consistent ambient sound level regardless of the position of the plurality of sound sources and the applied gain weight adjustments to the plurality of microphones, based on received signals from the plurality of microphones; and   outputting, using the one or more processors, a summed signal of the plurality of sound sources at a consistent volume with a constant ambient sound level across the plurality of sound source positions in the shared space.