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    • 10. 发明申请
    • METHOD AND APPARATUS FOR MULTI-STAGE ADAPTIVE VOLUME CONTROL
    • 用于多级自适应体积控制的方法和装置
    • WO2013134929A1
    • 2013-09-19
    • PCT/CN2012/072278
    • 2012-03-13
    • MOTOROLA SOLUTIONS, INC.GAO, YiBARRUS, James D.KUSHNER, William M.LIU, YuXIAO, Li
    • GAO, YiBARRUS, James D.KUSHNER, William M.LIU, YuXIAO, Li
    • H04M1/60
    • H03G3/20H04M1/6041
    • A method and apparatus for adaptively controlling the audio output (122) of a communication device (114) according to the noise characteristics of the receiver listening environment (119). An output volume for the communication device (114) is set by a user (e.g., listener 118). The communication device (114) can intermittently sample ambient noise (116) of its environment (119). A minimum signal to noise threshold can be established for audio output (122). A total adjustment for the audio output (122) is established based on the ambient noise (116), the user set output volume, and the minimum signal to noise threshold. The total adjustment is a product of a software volume adjustment (230) and a hardware gain adjustment (240). The software volume adjustment (230) and the hardware gain adjustment (240) is adaptively applied when the communication device (114) outputs audio (122).
    • 一种用于根据接收机收听环境(119)的噪声特性自适应地控制通信设备(114)的音频输出(122)的方法和装置。 通信设备(114)的输出音量由用户(例如,听众118)设置。 通信设备(114)可以间歇地对其环境(119)的环境噪声(116)进行采样。 可以为音频输出(122)建立最小信号噪声阈值。 基于环境噪声(116),用户设定输出音量和最小信号噪声阈值来建立音频输出(122)的总体调整。 总体调整是软件音量调整(230)和硬件增益调整(240)的产物。 当通信设备(114)输出音频(122)时,自适应地应用软件音量调节(230)和硬件增益调整(240)。