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    • 3. 发明授权
    • Devices, methods and computer program products for controlling loudness
    • 用于控制响度的设备,方法和计算机程序产品
    • US09253586B2
    • 2016-02-02
    • US13871260
    • 2013-04-26
    • Sony Corporation
    • Martin NystromSead Smailagic
    • H03G5/00H03B9/00H03G3/00H04S7/00H03G5/16H03G3/20
    • H04S7/307G10H2250/161H03G3/20H03G5/165
    • A method by an electronic device for controlling a frequency response of audio output includes: receiving an audio signal at the device; estimating a sound pressure level of the audio signal based on one or more attributes or settings of the electronic device and/or the audio signal; generating values of an adaptive loudness control curve along a range of frequencies, wherein the adaptive loudness control curve is generated based on a difference between values of an equal loudness curve at the estimated sound pressure level along and values of an equal loudness curve at a reference sound pressure level; filtering the audio signal using values of the adaptive loudness control curve; and controlling output of the filtered audio signal as an audio output having substantially the same loudness along the range of frequencies.
    • 用于控制音频输出的频率响应的电子设备的方法包括:在设备处接收音频信号; 基于电子设备和/或音频信号的一个或多个属性或设置来估计音频信号的声压级; 沿着频率范围产生自适应响度控制曲线的值,其中基于估计的声压级上的相等响度曲线的值与参考的相等响度曲线的值之间的差产生自适应响度控制曲线 声压级; 使用自适应响度控制曲线的值对音频信号进行滤波; 并且将经滤波的音频信号的输出控制为具有沿频率范围具有基本相同响度的音频输出。