[mythtv] [mythtv-commits] Ticket #7563: Upmixer uses wrong sample rate for IEC958

Michael T. Dean mtdean at thirdcontact.com
Mon Nov 16 17:24:59 UTC 2009

On 11/16/2009 12:17 PM, MythTV wrote:
> #7563: Upmixer uses wrong sample rate for IEC958
> Comment(by anonymous):
>  Replying to [comment:1 jyavenard]:
>  > Alsa reports 44100 as being available ; and as your content is 44.1kHz,
>  that's what it tried using... AC3 doesn't have to be 48kHz.
>  Further investigation suggests that my sound card does not allow anything
>  other than 48k when put into non-audio mode.

That's common of nearly all PC-based sound cards--due to Intel's AC'97 
and Intel HDA specs.  You have to choose /very/ carefully to find a 
sound card that supports 44.1kHz or 32kHz in non-audio/data mode.


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