发明名称 |
METHOD AND SPEECH ENCODER WITH LENGTH ADJUSTMENT OF DTX HANGOVER PERIOD |
摘要 |
The present invention relates to a speech encoder comprising: a voice activity detector (VAD) configured to receive speech frames and to generate a speech decision (VAD_flag), a speech/SID encoder configured to receive said speech frames and to generate a signal identifying speech frames based on the encoder decision (SP), which in turn is based on the speech decision (VAD_flag) and a DTX-hangover period, and a SID-synchronizer configured to transmit a signal (TxType) comprising speech frames, SID frames and No_data frames. The speech encoder further comprises: a signal analyzer configured to analyze energy values of speech frames within the DTX-hangover period, and a DTX-handler configured to adjust the length of the DTX-hangover period in response to the analysis performed by the signal analyzer. The invention also relates to a method for estimating the characteristic of a DTX-hangover period in a speech encoder. |
申请公布号 |
EP2143103(A4) |
申请公布日期 |
2011.11.30 |
申请号 |
EP20070835247 |
申请日期 |
2007.12.05 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) |
发明人 |
SVEDBERG, JONAS;SEHLSTEDT, MARTIN |
分类号 |
G10L19/00;G10L11/04;G10L19/14 |
主分类号 |
G10L19/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|