语音编解码标准

Posted 2021-07-19 quickembed

转自：http://www.quickembed.com/audiospeech.htm

G.729AB, G.723.1A, GSM AMR, Wideband AMR(G.722.2).
(1) ITU-T Recommendation G.729, Coding of Speech at 8 kbit/s Using Conjugate-Structure Algebraic-Code-Excited Linear-Prediction (CS-ACELP).
(2) G729 Annex A, Reduced complexity 8 kbit/s CS-ACELP speech codec
(3) G729 Annex B, A silence compression scheme for G.729 terminals
(4) ITU-T Recommendation G.723.1, Dual rate speech coder for multimedia communications transmitting at 5.3 and 6.3 kbit/s.
(5) G.723.1 AnnexA, silence compression scheme.
(6) GSM 06.90, Digital cellular telecommunication system (Phase 2+); Adaptive Multi-Rate (AMR) speech transcoding.
(7) GSM 06.91, Substitution and muting of lost frame for AMR speech traffic channels.
(8) GSM 06.92, Comfort noise aspects for AMR speech traffic channels.
(9) GSM 06.93, Discontinuous transmission (DTX) for AMR speech traffic channels.
(10) GSM 06.94, Voice Activity Detector (VAD) for AMR.
(11) GSM 06.74, Test sequences for the AMR speech codec.
(12) 3GPP TS26.190, AMR Wideband speech codec; Transcoding functions(Release 5).
(13) 3GPP TS 26.194, Voice Activity Detection (VAD).
(14) 3GPP TS 26.174, AMR wideband speech codec; Test sequences.
(15) 3GPP TS 26.194, Frame Structure.