Speex dev - Sep 2006 - Single frame or multiple frame inside rtp packet?

Hi,

Sorry if my question not related to speex.
I have created a voip application using speex. My
internet line is 64Kbps. 
I`m using narrow band mode, 8000 bitrate, 20ms of
8000Khz sampling rate, no buffering, no preprocessing,
just set bitrate and go.

When i send single frame inside rtp the sound was not
good, choppy and noisy. But when i pack around 8 frame
inside rtp packet, the sound was better.
My question are:
1. Which one is best practice?
2. How to correctly measure bandwidth usage of speex
packet?

Thanks for any help
Reza 

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> I have created a voip application using speex. My
> internet line is 64Kbps. 
> I`m using narrow band mode, 8000 bitrate, 20ms of
> 8000Khz sampling rate, no buffering, no preprocessing,
> just set bitrate and go.
> 
> When i send single frame inside rtp the sound was not
> good, choppy and noisy. But when i pack around 8 frame
> inside rtp packet, the sound was better.
Most likely reason is that it's not related to bandwidth, but that you
probably screwed up either the network or the audio buffering.
> My question are:
> 1. Which one is best practice?
It's usually best to use one (or at most two) frames per packet because
of latency.
> 2. How to correctly measure bandwidth usage of speex
> packet?
The overall bandwidth using RTP is:
speex_bitrate + 16kbps/frames_per_packet


	Jean-Marc