Patent ID: 8654212
Filing Date: 2014-02-18
Classification: G10L,H04N

Abstract:
1. An audio signal processing apparatus comprising: a connection unit that connects with a removable lens unit; a microphone unit that acquires audio signal; an audio processor that processes the audio signal acquired by the microphone unit so as to reduce a driving noise of the removable lens unit; and a controller, wherein the audio processor performs a first reduction process and a second reduction process, wherein the audio processor, in the first reduction process, reduces the driving noise by using a signal which is generated based on an audio signal of previous or subsequent to a noise section of the driving noise, wherein the audio processor, in the second reduction process, reduces the driving noise by attenuating a part of the driving noise, wherein the controller detects a type of the connected removable lens unit, wherein the controller controls the audio processor to perform the first reduction process, in a case where the type of the connected removable lens unit is a first type lens unit, and wherein the controller controls the audio processor to perform the second reduction process, in a case where the type of the connected removable lens unit is a second type lens unit.