[speex-dev] Server based audio merge

Jean-Marc Valin Jean-Marc.Valin at USherbrooke.ca
Thu Nov 20 23:07:03 PST 2003

There's no perfect solution to the multiple client problem. Each
approach has advantages and drawbacks:

1) Mixing at the server
- Allows a constant bandwidth for every client
- Allows compatibility with regular VoIP prones
- Requires transcoding, even when only on person is talking
- Higher bit-rate required for the general case (one speaker is talking)

2) Sending multiple streams
- Possible to do without a server at all
- Best quality (no transcoding)
- Non-constant bandwidth


Jean-Marc Valin, M.Sc.A., ing. jr.
LABORIUS (http://www.gel.usherb.ca/laborius)
Université de Sherbrooke, Québec, Canada

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