Invention Grant
- Patent Title: Audio signal shaping for playback by audio devices
- Patent Title (中): 用于音频设备回放的音频信号整形
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Application No.: US12109017Application Date: 2008-04-24
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Publication No.: US08645144B2Publication Date: 2014-02-04
- Inventor: Wilfrid LeBlanc , Taro Umezawa
- Applicant: Wilfrid LeBlanc , Taro Umezawa
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agency: Fiala & Weaver P.L.L.C.
- Main IPC: G10L19/00
- IPC: G10L19/00

Abstract:
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.
Public/Granted literature
- US20090271186A1 AUDIO SIGNAL SHAPING FOR PLAYBACK BY AUDIO DEVICES Public/Granted day:2009-10-29
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