发明授权
- 专利标题: Method and system for audio level detection and control
- 专利标题(中): 音频电平检测和控制的方法和系统
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申请号: US12248458申请日: 2008-10-09
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公开(公告)号: US08208660B2公开(公告)日: 2012-06-26
- 发明人: Nelson Sollenberger , Radhakrishnan Kuzhipatt , Hongwei Kong
- 申请人: Nelson Sollenberger , Radhakrishnan Kuzhipatt , Hongwei Kong
- 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: Sterne, Kessler, Goldstein & Fox PLLC
- 主分类号: H03G3/00
- IPC分类号: H03G3/00
摘要:
In a method and system for audio level detection and control, an amplitude of an audio signal may be compared to a threshold and an attenuation applied to the audio signal may be adjusted based on the comparison. In instances that the amplitude of the audio signal is greater than or equal to the threshold the adjustment may comprise increasing a first attenuation factor until the amplitude of the audio signal is less than the threshold. The first attenuation factor may be subsequently decreased until the amplitude of the audio signal is greater than or equal to the threshold or until the first attenuation factor is equal to zero. The attenuation of the audio signal may be controlled via a digital gain circuit within the hardware audio CODEC, wherein an overall attenuation factor of the digital gain circuit is a sum of the first attenuation factor and a second attenuation factor.
公开/授权文献
- US20100054498A1 METHOD AND SYSTEM FOR AUDIO LEVEL DETECTION AND CONTROL 公开/授权日:2010-03-04
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