asterisk users - Aug 2005 - Meetme using ztdummy on Linux 2.6 sounds scratchy

I'm currently working out the config bugs on my * box and I'm noticing
that the meetme is very scratchy.  As in not usable scratchy tho I can
hear the audio it sounds like when you talk through a fan.

Anyone have any ideas?  Linux 2.6 with RTC installed.  Using stable
release and SIP devices.

-Don