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Developed to deliver wideband speech and music at lower bit rates than G.722, the G.722.1 standard is limited in scope to handsfree operation and low packet loss conditions.

The VoiceAge G.722.1 implementation is fully compliant with the ITU-T G.722.1 recommendation, operating at 24 or 32 kbps.

 


Platforms

Technology

 

  Encoded bandwidth

~ 50-7000 Hz

 

  Standardized

ITU-T 1999

 

  Coding type

Transform coding

 

  Bit rate

24/32 kbps

 

  Delay (ms):
      Frame size
      Lookahead

 
20
20

 

  Quality

Good music performance. Scope of standard limited to hands-free and low packet loss rates. Transform coding yields poor speech quality in some operating conditions.

 

  Complexity:
      MIPS
      RAM (words)


< 15
2 K

Applications

  • Wideband telephony – Wi-Fi, VoIP
  • Audio and videoconferencing
  • Streaming audio over the Internet
  • Audio storage and playback
  • Voicemail
  • Store and forward messaging