Patent ID: 8503697
Filing Date: 2013-08-06
Classification: G10L,H04R

Abstract:
1. A pickup signal processing apparatus comprising: a plurality of microphones that pick up sounds containing a voice and obtain pickup signals; a sound determining unit that determines whether the pickup signals are signals from a neighboring sound source which is close to the microphones or background noise signals; a signal level calculating unit that calculates signal levels for the microphones using the pickup signals; a setting unit that sets a gain value of at least one microphone on the basis of the signal levels for the microphones, when the sound determining unit determines that the pickup signals are the background noise signals, and that prohibits setting the gain value of the at least one microphone when the sound determining unit determines that the pickup signals are the signals from the neighboring sound source, the gain value being set so as to reduce a difference between the signal levels for the microphones; and a calculating unit that multiplies a pickup signal of the at least one microphone by the gain value set by the setting unit.