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    • 3. 发明申请
    • A METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL
    • 一种处理音频信号的方法和装置
    • WO2010013943A2
    • 2010-02-04
    • PCT/KR2009/004222
    • 2009-07-29
    • LG ELECTRONICS INC.MOON, Jong HaOH, Hyen OLEE, Joon IlLEE, Myung HoonJUNG, Yang Won
    • MOON, Jong HaOH, Hyen OLEE, Joon IlLEE, Myung HoonJUNG, Yang Won
    • H04N5/60G11B20/10
    • H03G3/32H03G7/007H03G9/005
    • 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 receiving an input signal and reference information controlling a volume of the input signal; and adjusting a volume of the input signal with the reference information, wherein the reference information comprises at least one of metadata indicating characteristics of the input signal, output environment information indicating characteristics of an environment in proximity to the apparatus and stored reference information being transmitted from memory. Therefore, the present invention is able to control a volume of an input signal adaptively by using reference information, for example metadata, outside environment information and stored reference information.
    • 公开了一种用于控制音频信号音量的装置及其方法,通过该装置可以通过使用非线性增益曲线和输入信号的目标音量来控制输入信号的音量。 本发明包括接收输入信号和控制输入信号音量的参考信息; 以及使用所述参考信息调整所述输入信号的音量,其中所述参考信息包括指示所述输入信号的特性的元数据中的至少一个,指示所述设备附近的环境的特征的输出环境信息以及从所述设备发送的所存储的参考信息 记忆。 因此,本发明能够通过使用参考信息(例如元数据,外部环境信息和存储的参考信息)自适应地控制输入信号的音量。
    • 4. 发明申请
    • A METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL
    • 一种处理音频信号的方法和装置
    • WO2010013944A2
    • 2010-02-04
    • PCT/KR2009/004223
    • 2009-07-29
    • LG ELECTRONICS INC.MOON, Jong HaOH, Hyen OLEE, Joon IlLEE, Myung HoonJUNG, Yang Won
    • MOON, Jong HaOH, Hyen OLEE, Joon IlLEE, Myung HoonJUNG, Yang Won
    • H04N5/60G11B20/10
    • H03G3/32H03G7/007H03G9/005
    • 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.
    • 公开了一种用于控制音频信号音量的装置及其方法,通过该装置可以通过使用非线性增益曲线和输入信号的目标音量来控制输入信号的音量。 本发明包括存储指示输入信号和输出信号的音量之间的关系的非线性增益曲线; 接收输入信号和目标音量信息; 通过使用输入信号的音量和目标音量信息来确定第一增益; 通过使用非线性增益曲线从a)输入信号的体积和目标体积信息中的一个确定第二增益,或b)第一增益; 以及通过对输入信号施加第二增益来调整输入信号的音量,其中通过使用非线性信息产生非线性增益曲线。 使用指示输入信号的音量与输出信号的音量之间的关系的非线性增益曲线来控制本发明的输入信号的音量。 因此,本发明能够减小或扩大输出音量的动态范围。