[asterisk-users] HPEC audio clipping

[Eric "ManxPower" Wieling]

Michael Boers wrote:
> I have recently moved an asterisk system to a new location.  This location
> is experiencing terrible echo.  I installed the HPEC from Digium but that
> has caused a new problem.
> 
> When HPEC is enabled and more that 16 taps are used, the audio from the
> outside caller gets clipped.  Instead of hearing:
> 
> Hello, my name is Mike
> 
> one hears
> 
> He  o, m  ame    ike

I am experiencing the same thing.  I assumed that I just didn't have a 
fast enough CPU (2.4 Ghz Celeron Ghz, also tried on a 1.8 Ghz Pentium 
4).  I am using a T400P with an Adtran TA750 Channel Bank rather than 
the Digium analog cards.  I'm not doing any VoIP on this system, 
strictly analog and I get echo on calls.