SIGNAL PROCESSING APPARATUS AND SIGNAL PROCESSING METHOD

摘要

A signal processing apparatus acquires an audio signal of channels using a sound acquisition unit, at least a part of which is within a housing of the apparatus, and obtains an audio signal of channels from a microphone provided outside the housing. The apparatus processes an audio signal in accordance with a first propagation characteristic indicating propagation of sound associated with a direction of a sound source, in a case of processing an audio signal acquired by the sound acquisition unit and processes an audio signal in accordance with a second propagation characteristic different from the first propagation characteristic, in a case of processing an audio signal obtained by the microphone. The signal processing apparatus estimates a sound source direction using an audio signal processed by the first processing unit or an audio signal processed by the second processing unit.

主权项

1. A signal processing apparatus that processes an audio signal comprising:
a sound acquisition unit configured to acquire an audio signal of a plurality of channels, at least a part of the sound acquisition unit being within a housing of the signal processing apparatus; an obtaining unit configured to obtain an audio signal of a plurality of channels from a microphone provided outside the housing of the signal processing apparatus; a first processing unit configured to process an audio signal in accordance with a first propagation characteristic indicating propagation of sound associated with a direction of a sound source, in a case of processing an audio signal acquired by the sound acquisition unit; a second processing unit configured to process an audio signal in accordance with a second propagation characteristic different from the first propagation characteristic, in a case of processing an audio signal obtained by the obtaining unit; and an estimation unit configured to estimate a sound source direction using an audio signal processed by the first processing unit or an audio signal processed by the second processing unit.