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Specialists in Speech and Audio Software Development
ETSI FR
TThe ETSI Standard Full Rate (FR) speech codec was the first digital speech coding standard used in GSM. The standard is based on RPE-LTP (Regular Pulse Excitation - Long Term Prediction) speech coding. The average bit rate of the codec is 13kbps. The codec operates on speech frames of 20ms (160 samples).
The ESPICO implementations are highly optimised, realising low memory and MHz requirements. Contact ESPICO for specific resource requirements.
Features
- Encodes and decodes GSM-EFR bit-streams compliant with ETSI GSM 06.10
- Supports Voice Activity Detection (VAD)
- Supports Discontinuous Transmission (DTX)
- Supports Comfort Noise Generation (CNG)
- Supports substitution and muting of lost frames
Availability
ESPICO’s optimised solution can be ported to any platform. Available solutions include:
- ZSP Cores including ZSP400, ZSP500, ZSP800 families
- ARM including Cortex and NeonTM
- MIPS32 74KTM
- Ceva DSP Cores
Applications
- Digital cellular telecommunications
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| ITU G.711 |
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| ITU G.728 |
| iLBC |
| OPUS |
| iSAC |
| CELT |
| SILK |
| ETSI NB-AMR |
| ETSI WB-AMR |
| ETSI WB-AMR+ |
| ETSI HR |
| ETSI EFR |
| ETSI FR |