[mythtv-users] AC3 passthrough not working

[Glenn Sommer]

Ok, I tested today by commenting out the rate field in /etc/asound.conf.
I rebooted just to be sure...

And I can say it still works FINE! :D
Though, I just noticed most of my recordings are either in AC3, or in
48kHz... I still need to find a recording NOT 48kHz just to be sure...
:)

But I guess you're right - there's no reason to re-assamble to 48kHz
if it's unneeded!


Thanks for the help! :)



2009/4/12 Allen Edwards <allen.p.edwards at gmail.com>:
>
>
> On Sat, Apr 11, 2009 at 7:10 PM, Richard Shaw <hobbes1069 at gmail.com> wrote:
>>
>> On Sat, Apr 11, 2009 at 8:53 PM, Nick Morrott <knowledgejunkie at gmail.com>
>> wrote:
>> > On 12/04/2009, Richard Shaw <hobbes1069 at gmail.com> wrote:
>> >> On Sat, Apr 11, 2009 at 8:31 PM, Allen Edwards
>> >> > Why on earth would you want to resample.  The goal should bit true
>> >> > digital
>> >>  > output.  Pass the bits to the receiver and let it do a DAC.  For
>> >> best
>> >>  > quality, don't decode, encode, decode just decode.
>> >>  > Allen
>> >>
>> >>
>> >> He may not have a choice. Some sound cards will not output anything
>> >>  other than 48kHz. My nForce3 based MB didn't seem to want to but then
>> >>  again, I haven't tried now that I've gone to an AMD chipset MB.
>> >
>> > And similarly, some S/PDIF inputs require 48kHz PCM input. This is why
>> > you'll see messages stating that digital TV recordings work (48kHz)
>> > but CDs ripped to MP3 (44kHz) do not.
>> >
>> > Nick
>>
>> Interestingly enough, I just did a simple test on my desktop, i.e.
>> "aplay -D spdif Shutdown1.wav" or something like that. I just picked a
>> file out of /usr/share/sounds and it worked! aplay showed it was a
>> 44.1kHz file. I tried /usr/share/sounds/alsa first but those we
>> already 48kHz. Now I just need to see if my Home Theater receiver
>> minds 44.1kHz PCM audio.
>>
>> Richard
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>
>
> A home theater receiver that won't play CDs?  What are the chances?  Think
> about it.
> Allen
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