[mythtv] [mythtv-commits] Ticket #5900: AO: Generalise upmix and AC-3 encoding

[foo bar]

2008/11/11 Dave Badia <dbadia at gmail.com>:
> I'm also doing the whole "bit perfect audio" thing.  So, if I'm
> understanding correctly, when I upgrade to head/next myth release I will
> need to apply the above patch (which removes one of the features of the
> original patch)  to continue getting 44.1KHz output through my soundcard?

This is configurable in the latest version of the patch - if you're
confident that ALSA isn't going to resample (twice) and have
appropriate hardware you can add a setting 'DisableResampler' with
value 1 to the db.

For the vast majority it's far better that we resample - SRC anywhere
else in the chain (ALSA, card) would be done with a SNR much less than
a *worst case* 97dB..

To set the setting:

echo "insert into settings values ('DisableResampler', 0, '<hostname
of frontend>')" | mysql -u mythtv -p mythconverg