[mythtv-users] AC3 passthrough not working

Nick Morrott knowledgejunkie at gmail.com
Sun Apr 12 01:53:23 UTC 2009

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 Morrott

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