
基本信息:
- 专利标题: 一种混响时间估计方法及装置
- 专利标题(英):Reverberation time estimation method and apparatus
- 申请号:CN201610626191.1 申请日:2016-08-02
- 公开(公告)号:CN107680603A 公开(公告)日:2018-02-09
- 发明人: 邹莹 , 梁民 , 沙永涛
- 申请人: 电信科学技术研究院
- 申请人地址: 北京市海淀区学院路40号
- 专利权人: 电信科学技术研究院
- 当前专利权人: 电信科学技术研究院
- 当前专利权人地址: 北京市海淀区学院路40号
- 代理机构: 北京同达信恒知识产权代理有限公司
- 代理人: 刘松
- 主分类号: G10L19/00
- IPC分类号: G10L19/00 ; G10L19/09 ; G10L19/26 ; G10L21/02 ; G10L21/057 ; G10K15/08 ; H04S7/00
The invention discloses a reverberation time estimation method and apparatus, so as to solve the problem, in the existing reverberation time estimation method based on a speech model, of the reverberation time of reverberation speech for which the reverberation time is smaller than a preset threshold being overestimated. The method comprises steps: a current reverberation speech signal is acquiredin a reverberation environment; an autocorrelation function is determined on the basis of historical reverberation speech signals and the current reverberation speech signal; and according to the autocorrelation function and a preset maximum-likelihood estimation model, the reverberation time of the current reverberation speech signal is determined.
公开/授权文献:
- CN107680603B 一种混响时间估计方法及装置 公开/授权日:2021-08-31
IPC结构图谱:
G | 物理 |
--G10 | 乐器;声学 |
----G10L | 语言分析或合成;语言识别 |
------G10L19/00 | 用于冗余度下降情形的语音分析—合成技术;语音编码或解码 |