Synopsys ARC Audio G.726 Encoder and Decoder

Synopsys ARC® Audio G.726 software for the Synopsys ARC AS211SFX and AS221BD audio processors provides high-quality speech encoding and decoding for mobile and cordless phones, voice recording and Voice over IP (VoIP applications).

The design is bit-compliant with the ITU-T G.726 specification for speech encoding and uses Adaptive Differential Pulse Code Modulation (ADPCM) technology. Implementation is done according to the ITU-T G.721 and G.723 recommendations.

Supported Cores

Synopsys ARC Audio G.726 Encoder/Decoder


  • Compliant to the following standards:
    • ITU-T G.726
    • ITU-T G.721 recommendations
    • ITU-T G.723 recommendations
  • Adaptive Differential Pulse Code Modulation (ADPCM)
  • Encoding: 16/24/32/40 kbps bitrates
  • Decoding: 16/24/32/40 kbps bitrates
  • Input /output: 14 and 16-bit PCM samples
  • Sampling rate: 8 kHz
  • Supports little endian
  • Full duplex implementation