internet Speech Audio Codec
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For the Indian Satellite facillity, see ISRO Satellite Centre
internet Speech Audio Codec (iSAC) is a wideband speech codec, developed by Global IP Solutions (GIPS). It is suitable for VoIP applications and streaming audio. The encoded blocks have to be encapsulated in a suitable protocol for transport, eg. RTP. Unlike iLBC, this codec is proprietary and implementations have to be licensed from GIPS.
It is one of the codecs used by AIM Triton, Skype, the Gizmo Project, and Google Talk.
[edit] Parameters and features
- Sampling frequency 16 kHz
- Adaptive and variable bit rate (10 kbit/s to 32 kbit/s)
- Adaptive packet size 30 to 60ms
- Complexity comparable to G.722.2 at comparable bit-rates
- Algorithmic delay of frame size plus 3ms
[edit] See also
[edit] External links
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