发明名称 Automatic detection of audio compression parameters
摘要 For a media clip that includes audio content, a novel method for performing dynamic range compression of the audio content is presented. The method performs an analysis of the audio content. Based on the analysis of the audio content, the method generates a setting for an audio compressor that compresses the dynamic range of the audio content. The generated setting includes a set of audio compression parameters that include a noise gating threshold parameter (“noise gate”), a dynamic range compression threshold parameter (“threshold”), and a dynamic range compression ratio parameter (“ratio”).
申请公布号 US8965774(B2) 申请公布日期 2015.02.24
申请号 US201113215534 申请日期 2011.08.23
申请人 Apple Inc. 发明人 Eppolito Aaron M.
分类号 G10L19/00;G10L21/0316;H03G7/00 主分类号 G10L19/00
代理机构 Adeli LLP 代理人 Adeli LLP
主权项 1. A method for compressing a dynamic range of an audio content, the method comprising: receiving, at a device, the audio content; determining a target range of the audio content based on predefined parameters; analyzing the audio content in order to identify a detected range according to a peak level and a floor level of the audio content; generating a set of audio compression parameters based on the peak level and floor level of the audio content, wherein at least one audio compression parameter is a ratio parameter for expressing a difference between the target range and the detected range; and compressing the dynamic range of the audio content by using the set of audio compression parameters.
地址 Cupertino CA US