[asterisk-users] best format for playback/generation

[Zeeshan Zakaria]

If your sip provider supports gsm, then it is fine to send them your
existing format, but I am sure by the time voice reaches an end user, it is
transcoded at least once or twice again, so you can never guarantee what
quality the end user is getting. I would stay with ulaw, as it has more
chances to retain a better quailty even after a few transcodings, plus
almost every sip provider will be able to receive it as it is and pass it on
as received.

Zeeshan A Zakaria

--
www.ilovetovoip.com

On 2010-09-24 1:02 PM, "Gareth Blades" <list-asterisk at skycomuk.com> wrote:

The best format would be in whatever format asterisk is sending the
final audio out in. Even if you store it in the highest quality asterisk
may have to transcode it on the fly so its best to store it in an
already transcoded format to reduce the cpu load.
For dahdi you would want to use the native .sln format. For sip use
whatever coded you use over the sip connection.


Danny Nicholas wrote:
> Greetings fellow listers,
>
> I have an ...
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