Patent ID: 9281795
Filing Date: 2016-03-08
CPC Classification: H03G,H04R

Claim Text:
1. An acoustic signal processing apparatus which is configured to receive an input acoustic signal and to output an output acoustic signal, the acoustic signal processing apparatus comprising: a band separation portion for separating the input acoustic signal into a high frequency component, a middle frequency component and a low frequency component; a first level control portion for controlling a level of the high frequency component in accordance with a first control signal to output the controlled high frequency component; a second level control portion which controls a level of the low frequency component in accordance with a second control signal to output the controlled low frequency component; a mixing portion for mixing the high frequency component output from the first level control portion, the middle frequency component output from the band separation portion and the low frequency component output from the second level control portion to output a mixed signal; a first control signal generation portion which is configured to detect a volume level of the mixed signal to generate the first control signal in accordance with the detected volume level; and a second control signal generation portion which is configured to detect a volume level of a low frequency component of the mixed signal to generate the second control signal in accordance with the detected volume level.