发明授权
- 专利标题： Dynamic gain adjustment based on signal to ambient noise level
- 专利标题（中）： 基于信号对环境噪声水平的动态增益调整
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申请号： US13075536申请日： 2011-03-30
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公开(公告)号： US08798278B2公开(公告)日： 2014-08-05
- 发明人: Steven H. Isabelle , Vasu Iyengar
- 申请人： Steven H. Isabelle , Vasu Iyengar
- 申请人地址： US MA Framingham
- 专利权人： Bose Corporation
- 当前专利权人： Bose Corporation
- 当前专利权人地址： US MA Framingham
- 主分类号： H03G3/20
- IPC分类号： H03G3/20
摘要：
Methods and apparatuses for deriving a signal-to-noise ratio based at least in part on a measured level of a signal carrying far-end speech, and a measured level of a signal carrying ambient acoustic noise; determining a target gain adjustment based at least in part on the derived signal-to-noise ratio; applying the target gain adjustment to the signal carrying far-end speech to produce a gain-adjusted signal; and providing the gain-adjusted signal for audio output from a communications device.
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