[mythtvnz] No sound on videos

[Nick Rout]

On Wed, Feb 17, 2010 at 5:39 PM, Stephen Worthington
<stephen_agent at jsw.gen.nz> wrote:
> On my mother's MythTV box, I have just tried to play a video file (as
> opposed to a recorded TV program) for the first time, and there is no
> sound.  I tried using the builtin player, and using mplayer.  The
> "Audio output device" setting is "ALSA:hdmi" - the sound goes via the
> HDMI audio to the TV, and the TV sends it to the amplifier.  It works
> fine for TV programs.
>
> I have tried playing a DivX/MP3 AVI file, and a flash file (VP6/MP3).
> Both files play with sound on my own MythTV box using the builtin
> player.  My box has the "Audio output device" set to "ALSA:default"
> and the sound goes via SPDIF to my DAC and amplifier.
>
> Does anyone have any ideas what I should do to fix this?  Do I need to
> set my mother's box to "ALSA:default" too and find some way in the
> ALSA config files to send the audio to the HDMI port?  I have never
> found any good documentation on what to put in the ALSA config files -
> they seem to be a black magical art.
>

possibly/probably an audio bitrate other than 48000 in the video file?