发明专利
JP2004536334A Method and system for generating a pseudo comfort noise without silence insertion descriptor packet
审中-公开
基本信息:
- 专利标题： Method and system for generating a pseudo comfort noise without silence insertion descriptor packet
- 申请号：JP2003504387 申请日：2002-06-12
- 公开(公告)号：JP2004536334A 公开(公告)日：2004-12-02
- 发明人： エス ナヤック、ヴァスデヴ , ランドマー、マシュー , ワン、デイヴィッド
- 申请人： グローブスパン ヴィラタ、インコーポレイテッドGlobespan Virata,Inc.
- 专利权人： グローブスパン ヴィラタ、インコーポレイテッドGlobespan Virata,Inc.
- 当前专利权人： グローブスパン ヴィラタ、インコーポレイテッドＧｌｏｂｅｓｐａｎ Ｖｉｒａｔａ，Ｉｎｃ．
- 优先权： US29726501 2001-06-12; US30515701 2001-07-16
- 主分类号： G10L11/02
- IPC分类号： G10L11/02 ; G10L19/00 ; G10L19/08 ; H03B29/00 ; H03G5/00 ; H03H7/30 ; H03H7/40 ; H03K5/159 ; H04M1/00
The method and system according to the present invention, using voice termination portion between voice information content and voice and noise, and generates comfort noise at the decoder side. Application to the noise is performed using various algorithms to analogize the spectrum of pseudo-noise. According to an embodiment of the present invention, applied algorithm, rather than a block-based algorithm is executed those applied to the time, thereby the unnatural population noise is generated repeatedly during a voice block the to prevent. The method and system of the present invention generates comfort noise in the absence of silence insertion descriptor, including spectral information, thereby saving communications bandwidth and generates the comfort noise that reflects the spectrum of the actual noise .
信息查询:
EspacenetIPC结构图谱:
| G | 物理 |
| --G10 | 乐器；声学 |
| ----G10L | 语言分析或合成；语言识别 |
| ------G10L11/00 | 不限定于G10L15/00至G10L21/00中单独一组的语音特征的测定或检测 |
| --------G10L11/02 | .检测有无语音信号 |