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Packet Loss Concealment (PLC)

Packet Loss Concealment is used to recover from lost frames/packets in packet based telephony systems. It is used to avoid un-necessary artifacts, glitches caused due to packet loss, so that the speech quality remains within the human tolerable limit. Ittiam's Packet Loss Concealment algorithm is based on ITU-T standard G.711 Appendix I generates synthetic data (noise, silence or speech) depending upon the past speech history.

Technical Specification

  • Low Complexity Concealment algorithm based on ITU-T G711 Appendix I
  • Improved Quality even with a packet-loss of upto 15%
  • Re-entrant , multi-channel implementation
  • C Callable APIs

Applications

  • IP Telephony
  • Speech Enhancers

Platforms

  • Currently supported on TI C64x™ (TMS320C64xx™) and TI C64x+™/DaVinci™ (DM644x™)
  • For further details contact mkt@ittiam.com

 

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