46 Series: CODECs

Full rate speech; Processing functions
Half rate speech; Half rate speech processing functions
Half rate speech; ANSI-C code for the GSM half rate speech codec
Half rate speech
⇒ Test sequences for the GSM half rate speech codec
Half Rate Speech; Performance Characterization of the GSM Half Rate speech codec
Full rate speech; Transcoding
Full rate speech
⇒ Substitution and muting of lost frames for full rate speech channels
⇒ Comfort noise aspect for full rate speech traffic channels
Half rate speech
⇒ Half rate speech transcoding
⇒ Substitution and muting of lost frames for half rate speech traffic channels
⇒ Comfort noise aspects for the half rate speech traffic channels
Full rate speech
⇒ Discontinuous Transmission (DTX) for full rate speech traffic channels
⇒ Voice Activity Detector (VAD) for full rate speech traffic channels
Half rate speech
⇒ Discontinuous Transmission (DTX) for half rate speech traffic channels
⇒ Voice Activity Detector (VAD) for half rate speech traffic channels
Enhanced Full Rate (EFR) speech processing functions; General description
ANSI-C code for the GSM Enhanced Full Rate (EFR) speech codec
Test sequences for the GSM Enhanced Full Rate (EFR) speech codec
Performance characterization of the GSM Enhanced Full Rate (EFR) speech codec
Enhanced Full Rate (EFR) speech transcoding
Substitution and muting of lost frames for Enhanced Full Rate (EFR) speech traffic channels
Comfort noise aspects for Enhanced Full Rate (EFR) speech traffic channels
Adaptive Multi-Rate (AMR) speech codec; Study phase report
Discontinuous Transmission (DTX) for Enhanced Full Rate (EFR) speech traffic channels
Voice Activity Detector (VAD) for Enhanced Full Rate (EFR) speech traffic channels
Subjective tests on the interoperability of the Half Rate / Full Rate / Enhanced Full Rate (HR/FR/EFR) speech codecs, single, tandem and tandem free operation