A METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL
摘要
An apparatus for controlling a volume of an audio signal and method thereof are disclosed, by which a volume of an input signal can be controlled by using a non-linear gain curve and a target volume of the input signal. The present invention includes storing a non-linear gain curve indicating relations between volumes of an input signal and an output signal; receiving an input signal and target volume information; determing a first gain by using the volume of the input signal and the target volume information; determining a second gain from one of a) the volume of the input signal and the target volume information or b) the first gain, by using the non-linear gain curve; and adjusting the volume of the input signal by applying the second gain to the input signal, wherein the non-linear gain curve is generated by using non-linearity information. A volume of an input signal of this invention is controlled using a non-linear gain curve indicating a relation between a volume of an input signal and a volume of an output signal. Therefore, the present invention is able to reduce or expand a dynamic range of an output volume.
申请公布号
WO2010013944(A3)
申请公布日期
2010.06.03
申请号
WO2009KR04223
申请日期
2009.07.29
申请人
LG ELECTRONICS INC.;MOON, JONG HA;OH, HYEN O;LEE, JOON IL;LEE, MYUNG HOON;JUNG, YANG WON
发明人
MOON, JONG HA;OH, HYEN O;LEE, JOON IL;LEE, MYUNG HOON;JUNG, YANG WON