[mythtv-users] Capturing 5.1 audio

[Michael T. Dean]

John DiLorenzo wrote:

> OK, so I'm out of luck recording the audio with the PVR-150.  How 
> about the sound card method... Will I be able to use a single 
> soundcard to capture 5.1 via coax, and then output via optical?  Will 
> I need 2 soundcards in this box?

You won't be able to get the digital audio into the MPEG stream created 
by the PVR-150 so even if you record it to a separate file it would 
require some hacks to Myth to get it to play a different audio stream 
with the video recorded by the PVR-150 and it would be a near impossible 
(or, possibly, just flat-out impossible) to get it to sync audio/video 
throughout the recording.

What is your source, anyway?  Are you sure it has 5.1?  If it's a 
digital cable box, then your only real option for SDTV with 5.1-ch audio 
is firewire--which may or may not work with your cable 
company/STB/channel.  If it's a digital satellite box, you're probably 
out of luck (don't know of any for which firewire works with Myth).  If 
it's anything else, it doesn't have 5.1 (save some digital cameras, but 
recording "5.1 channels" with one mic, you might as well fake it on 
playback).

Mike