[mythtv] Fwd: iec958 output (not passthrough) with Alsa rate pluginproblem

[Lawrence Freil]

On Jan 16 2007, Robin Gilks wrote:

>
>> Robin,
>>
>> The pcm listed below is pretty much what you need, however depending
>> on your distribution you may not even have the rate plugin.  You first
>> need the libsamplerate from
>>
>> http://www.mega-nerd.com/libsamplerate/
>>
>> After installing that you need to recompile alsa-plugins, preferably
>> matching the version of the rest of alsa installed (I am using
>> alsa-plugins-1.0.14rc1) It should show the rate plugin being built and
>> when
>> installed should live in
>> /usr/lib/alsa-lib/libasound_module_rate_samplerate*
>[snip]
>
>Thanks for that - I'm also running Gentoo stable, so I re-emerged
>alsa-plugins with the libsamplerate USE flag set and I now have the
>correct libraries. Too late to test last night so I'll report when I get
>home tonight :-)
>
>I assume that Myth will no longer be able to adjust the volume since the
>audio stream won't be going through the mixer hardware of the sound chip
>so I guess I'll be frigging irexec to call irsend with the correct codes
>for my theatre amp when I hit the vol+/- on my MCE remote! (I already have
>an IR blaster on it to turn it on/off).
>
>Cheers
>
>
To be honest, I havn't ever used the Myth/Alsa volume other than to set the 
initial values when it was analog. I have all my audio routed through the 
Sony receiver for both Myth and the TV. I suspect you are correct however 
since you can't adjust the volume for surround sound/passthrough either. In 
my case it was easier to program my Philips universal remote to 
"punch-through" the volume controls to the surround sound receiver 
regardless of which is the current "mode". The TV's digital audio output 
also bypasses the TV volume control so I needed this anyway.
-- 
Lawrence Freil
lef at freil.com