Onnowpurbo: New page: The term CODEC (Coder Decoder) and Vocoder may be interchangeable and normally refer to the subroutine facilities inside a softphone needed by the IP Phone or Gateway in the digitalization...

2010-03-10T03:01:46Z

New page: The term CODEC (Coder Decoder) and Vocoder may be interchangeable and normally refer to the subroutine facilities inside a softphone needed by the IP Phone or Gateway in the digitalization...

New page

The term CODEC (Coder Decoder) and Vocoder may be interchangeable and normally refer to the subroutine facilities inside a softphone needed by the IP Phone or Gateway in the digitalization process. There are several CODEC that may be used, such as,

* G.711 - a PCM standard, code audio into 8 bit sample at 8000 sample per second, produces 64kbps digital audio.
* G.729 / G.729A – the 8 kbps standard.
* CODEC that aims for lower speed will normally experience distortion in the coded audio.

The published MOS of low speed CODE will normally have a relatively good quality. In reality, low speed CODEC will experience a distortion in the coded audio. In addition, it was speculated that low speed CODEC such as G.729A creates stress for continuous usage in call center.

==See Also==

* [[VoIP Cookbook: Building your own Telecommunication Infrastructure]]
* [[VoIP Cookbook: VoIP Troubleshooting]]

VoIP Cookbook: CODEC and Vocoder - Revision history

Onnowpurbo: New page: The term CODEC (Coder Decoder) and Vocoder may be interchangeable and normally refer to the subroutine facilities inside a softphone needed by the IP Phone or Gateway in the digitalization...