发明名称 VOICE-ACTIVITY DETECTION BASED ON FAR-END AND NEAR-END STATISTICS
摘要 Methods and apparatus of managing a communication system, wherein a decision regarding a level of activity at a first end is made based at least in part on the level of activity at the second end. In one embodiment, the energy level of a first-end audio signal is measured. The first end is declared voice-active if the first-end energy level is greater than or equal to a first threshold value. The first end is declared voice-inactive if the first-end energy level is less than the first threshold value. To determine the value of the first threshold value, the energy level of a second-end audio signal is measured. If the second-end energy level is greater than or equal to a second threshold value, the second end is declared voice-active, in which case the first threshold is maintained at a relatively high level. If the second-end energy level is less than the second threshold value, the second end is declared voice-inactive, in which case the first threshold is maintained at a relatively lower level.
申请公布号 US2008049647(A1) 申请公布日期 2008.02.28
申请号 US20070846399 申请日期 2007.08.28
申请人 BROADCOM CORPORATION 发明人 LEBLANC WILFRID
分类号 H04B3/20;G10L11/02;H04B3/23;H04J3/06;H04J3/16;H04J3/22;H04L1/00;H04L12/28;H04L12/56;H04L12/66;H04L29/06;H04L29/08;H04M1/253;H04M3/00;H04M3/22;H04M7/00;H04Q1/45 主分类号 H04B3/20
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