[mythtv-users] Re: Funny problem with alsa and AC3 passthrough / rate conversion

[Nick Fasano]

> Everthing was working fine using ALSA:mixed-digital, but lately, if I
> enable AC3 passthrough in the mythfrontend, my amp outputs a horrible
> buzzing sound when it gets a dolby digital signal from myth.

I was having the same problem with my amp and dolby digital.  I  
solved it by removing my .asoundrc file and using ALSA:spdif as the  
output device.  Then go into KMix and mess with the settings until it  
works.  I discovered this through pure trial and error, but it now  
works properly and I don't mess with it.  Hope that helps.

Nick