基本信息:
- 专利标题: 聲音解碼裝置及方法
- 专利标题(英):Speech decoder, speech encoder, speech decoding method, speech encoding method
- 专利标题(中):声音译码设备及方法
- 申请号:TW105135127 申请日:2012-02-17
- 公开(公告)号:TW201706983A 公开(公告)日:2017-02-16
- 发明人: 菊入圭 , KIKUIRI, KEI , 山口貴史 , YAMAGUCHI, ATSUSHI
- 申请人: NTT都科摩股份有限公司 , NTT DOCOMO, INC.
- 专利权人: NTT都科摩股份有限公司,NTT DOCOMO, INC.
- 当前专利权人: NTT都科摩股份有限公司,NTT DOCOMO, INC.
- 代理人: 林志剛
- 优先权: 2011-033917 20110218;2011-215591 20110929
- 主分类号: G10L19/02
- IPC分类号: G10L19/02 ; G10L21/00
A speech decoder (1) includes a demultiplexing unit (1a), a low frequency band decoding unit (1b), a band splitting filter bank unit (1c), a coded sequence analysis unit (1d), a coded sequence decoding / dequantization unit (1e), a high frequency band generation unit (1h), low frequency band time envelope calculation units (1f 1 to 1f n ) that acquire a plurality of low frequency band time envelopes, a time envelope calculation unit (1g) that calculates high frequency band time envelopes using time envelope information and the plurality of low frequency band time envelopes, a time envelope adjustment unit (1i) that adjusts the time envelope of high frequency band components using the time envelopes obtained by the time envelope calculation unit (1g), and a band synthesis filter bank unit (1j).
公开/授权文献:
- TWI576830B 聲音解碼裝置及方法 公开/授权日:2017-04-01
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 |
------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 |
--------G10L19/02 | .利用频谱分析,例如变换声码器、子频带声码器 |