Speech Coding ExamplesSpeech Coding Examples

64 kb/s m-law PCM, ITU-T Rec. G.711

32 kb/s ADPCM, ITU-T Rec G.726

16 kb/s LD-CELP, ITU-T Rec. G728 8 kb/s CS-ACELP, ITU Rec. G.729

4.8 kb/s CELP Federal Standard 1016

2.4 kb/s MELP, DoD Secure Communications

Speech Coding ExamplesSpeech Coding Examples

Speech Mimic

Original Bell Labs Vocoder

1939 World’s Fair Voder