发明名称 VOICE FREQUENCY SIGNAL PROCESSING METHOD AND DEVICE
摘要 Embodiments of the present invention disclose a speech/audio signal processing method and apparatus. In an embodiment, the speech/audio signal processing method includes: when a speech/audio signal switches bandwidth, obtaining an initial high frequency signal corresponding to a current frame of speech/audio signal; obtaining a time-domain global gain parameter of the initial high frequency signal; performing weighting processing on an energy ratio and the time-domain global gain parameter, and using an obtained weighted value as a predicted global gain parameter, where the energy ratio is a ratio between energy of a historical frame of high frequency time-domain signal and energy of a current frame of initial high frequency signal; correcting the initial high frequency signal by using the predicted global gain parameter, to obtain a corrected high frequency time-domain signal; and synthesizing a current frame of narrow frequency time-domain signal and the corrected high frequency time-domain signal and outputting the synthesized signal.
申请公布号 EP2821993(A4) 申请公布日期 2015.02.25
申请号 EP20130754564 申请日期 2013.03.01
申请人 HUAWEI TECHNOLOGIES CO., LTD. 发明人 LIU, ZEXIN;MIAO, LEI
分类号 G10L19/00;G10L19/24;G10L21/02 主分类号 G10L19/00
代理机构 代理人
主权项
地址