Compression and expansion of digitized voice signals
    1.
    发明授权
    Compression and expansion of digitized voice signals 失效
    数字化语音信号的压缩和扩展

    公开(公告)号:US4631746A

    公开(公告)日:1986-12-23

    申请号:US466250

    申请日:1983-02-14

    CPC分类号: H04B1/66 G10L21/04

    摘要: Speech signal data compression is improved by a first compression using Time Domain Harmonic Scaling (TDHS), wherein two periods of voiced data are averaged together, followed by a second compression using Continuously Variable Slope Delta Modulation (CVSD). Pitch period detection and sampling-rate conversion are also features of the invention.

    摘要翻译: 通过使用时域谐波缩放(TDHS)的第一次压缩来改进语音信号数据压缩,其中有声数据的两个周期被平均在一起,接着是使用连续可变斜率增量调制(CVSD)的第二次压缩。 间距周期检测和采样率转换也是本发明的特征。