发明授权
- 专利标题: Audio signal shaping for playback by audio devices
- 专利标题(中): 用于音频设备回放的音频信号整形
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申请号: US12109017申请日: 2008-04-24
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公开(公告)号: US08645144B2公开(公告)日: 2014-02-04
- 发明人: Wilfrid LeBlanc , Taro Umezawa
- 申请人: Wilfrid LeBlanc , Taro Umezawa
- 申请人地址: US CA Irvine
- 专利权人: Broadcom Corporation
- 当前专利权人: Broadcom Corporation
- 当前专利权人地址: US CA Irvine
- 代理机构: Fiala & Weaver P.L.L.C.
- 主分类号: G10L19/00
- IPC分类号: G10L19/00
摘要:
A technique is provided for limiting distortion of an audio signal being processed for playback by an audio device. In accordance with the technique, the audio signal is compressed to generate a compressed audio signal having a level that does not exceed a compression limit. The compressed audio signal is then soft clipped signal to generate a soft-clipped audio signal having a level that does not exceed a soft clipping limit, wherein the compression limit exceeds the soft clipping limit. The technique may also include passing the audio signal through a shaping filter prior to compressing the audio signal, wherein passing the audio signal through a shaping filter comprises modifying the level of selected frequency components of the audio signal.
公开/授权文献
- US20090271186A1 AUDIO SIGNAL SHAPING FOR PLAYBACK BY AUDIO DEVICES 公开/授权日:2009-10-29
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