Vocoder GSM EFR

Modem V.32
Modem V.29
PLC modem
FM VFT modem

Vocoder G.729
Vocoder G.723
Vocoder GSM EFR

Decoder H.264 AVC
Decoder AVS

DTMF
Caller ID
R1/R2

Analyzer IEC 61000-4-30
Analyzer GOST 13109
Protective Relay

GSM EFR 12.2 kbit/s Speech Codeс software implements ETSI Enhanced Full Rate GSM 06.60 Algebraic Code Excited Linear Prediction (ACELP) speech coder. GSM EFR vocoder data processing delay is 20 ms.

GSM EFR features:

Bit-exact with ETSI GSM 06.60
16-bit 8 KHz sampled data
Re-entrant, relocatable, multi-channel capable code
Optimized C code, C-callable API

Telecomequipment

Email: powerdsp@narod.ru