发明名称 |
LONG TERM MONITORING OF TRANSMISSION AND VOICE ACTIVITY PATTERNS FOR REGULATING GAIN CONTROL |
摘要 |
The present document relates to audio communication systems. In particular, the present document relates to the control of the level of audio signals within audio communication systems. A method for leveling a near-end audio signal (211) using a leveling gain (214) is described. The near-end audio signal (211) comprises a sequence of segments, wherein the sequence of segments comprises a current segment and one or more preceding segments. The method comprises determining a nuisance measure (416) which is indicative of an amount of aberrant voice activity within the sequence of segments of the near-end audio signal (211); and determining the leveling gain (214) for the current segment of the near-end audio signal (211), at least based on the leveling gain (214) for the one or more preceding segments of the near-end audio signal (211), and by taking into account—according to a variable degree—an estimate of the level of the current segment of the near-end audio signal (211); wherein the variable degree is dependent on the nuisance measure (416). |
申请公布号 |
US2015215467(A1) |
申请公布日期 |
2015.07.30 |
申请号 |
US201314419924 |
申请日期 |
2013.09.09 |
申请人 |
DOLBY LABORATORIES LECENSING CORPORATION |
发明人 |
Shue Yen-Liang;Gunawan David;Dickins Glenn N. |
分类号 |
H04M3/56;H03G3/30;G10L21/0264;G10L25/84;G10L21/0324;G10L21/0208 |
主分类号 |
H04M3/56 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
San Francisco CA US |