Contract DSP software development

Vocoder GSM EFR

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
  • Loop System Co. Ltd.
  • Improv Systems, Inc
  • 74ZE Engineering, Inc
  • Parabyte Co. Ltd.
  • Pulsar Group of companies
  • EasyPQ Technologies Pvt. Ltd.
  • NIC Test Electro
  • Telecomequipment