[asterisk-users] Understanding Codecs

[Tilghman Lesher]

On Thursday 07 May 2009 03:33:14 Adrian Marsh wrote:
> So where are the codec translations set?

I assume you're talking about the numbers within the table?  They're
calculated at runtime, based upon shortest possible path (in terms of time)
from one codec to another.  Most codecs translate only to signed linear audio,
so the translation table tends to be rather simple.  Ulaw to alaw is a simple
table lookup, which is why it tends to be very fast.

-- 
Tilghman