[Asterisk-Users] Asterisk Crackly Bad quality

[Mark Farver]

On Fri, 2004-12-17 at 12:01 -0700, Nihal wrote:
> I've freshly installed Asterisk on a Fedora C2 machine. Dual P4's, 2GB RAM. 15KRPM Drive.
> Using the default configs and added one Soft Sip phone.
> 
> While listening to the demo the quality isnt very good. It's kind of crackly and skips a bit.
> Should the sound be better or is that just what you get using IP phones/Asterisk?

If you're on the same LAN the quality should be pretty good, at least
during the "congratulatory message" part.  Extension 500, the call to
Digium might not be very good, depending on your Internet connection.

Otherwise.. you might want to check the client PC for sound quality... a
lot of audio cards these days have miserable distortion if the volume on
the PCM channels is turned up.

You might want to try isolating the Asterisk box and client box on a
separate network switch for testing purposes, to eliminate outside
network problems.  (Streaming audio and VOIP can be very sensitive to
network conditions that do not bother less time sensitive protocols.)
Its amazing how many network issues can be traced to a forgotten 10mb
hub buried in a wiring closet.

Mark