[mythtv-users] 5.1 audio?

Jack Madison jack at webhouse.cc
Tue Feb 20 21:00:56 UTC 2007


Let me try this the easy way:

What should I do to rip/transcode DVDs such that they have 5.1 audio?

How can I verify that the files created when I rip/transcode DVDs have
5.1 audio?

On Mon, 2007-02-19 at 13:16 -0700, Jack Madison wrote:
> Rip/Transcode settings:
> Quality: Good
> Audio Track: en ac3 6Ch
> AC3 Audio: box is checked
> 
> tcprobe output:
> [tcprobe] RIFF data, AVI video
> [avilib] V: 23.976 fps, codec=XVID, frames=183644, width=704, height=480
> [avilib] A: 48000 Hz, format=0x2000, bits=16, channels=2, bitrate=448
> kbps,
> [avilib]    183644 chunks, 428992256 bytes, CBR
> [tcprobe] summary for "various movies, I tried a few", (*) = not
> default, 0 = not detected
> import frame size: -g 704x480 [720x576] (*)
>        frame rate: -f 23.976 [25.000] frc=1 (*)
>       audio track: -a 0 [0] -e 48000,16,2 [48000,16,2] -n 0x2000
> [0x2000] 
>                    bitrate=448 kbps
>            length: 183644 frames, frame_time=41 msec,
> duration=2:07:39.485
> 
> It looks like it's only 2 channel, not 6 as I expected.  Am I ending up
> with 5.1 audio in the file, but can only play 2 channel on my computer
> or is it really only 2 channels in the end file?  If only 2 channels,
> what do I need to do to get 5.1?  I don't yet have myth connected to a
> 5.1 sound system so I can't give it the old listen test.
> 
> I'm sorry if this is a FAQ.  I did look at the myth.org website
> including the FAQ and knowlegebase as well as trying a google search,
> but searching for "mythdvd audio channel" returns eleventy-billion
> unrelated hits.
> 
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