Right now, when a show is played in dual language (instead of stereo, 2 languages are broadcast in mono), mythtv select channel 1. Unfortunately, in my area, original soundtracks tend to be on channel 2.

I did some searches and found http://www.geocities.com/szermatt/bilingual.html. It appears that the ivtv patch is in since I can do a ivtvctl -Z to check the current setting. However, I can't find the mythtv settings. When I am not recording, it is set to "stereo" which means record both channels. I.e. ivtv is set up the way I want it. However, myth record seems to be changing the setting to Lang1 when bilingual shows are on. I can't find a Language setting in my record profiles.

Does anyone know how to change the myth behaviour to always record both channels?

I am really hoping someone can embarrass me by pointing out an obvious setting that I have missed...

Allen

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ASUS AT3N7A-I (Atom 330)
TBS 8922 PCI (DVB-S2)

I found a work-around. But first, a couple of questions:

This should probably be done with an option in /etc/modules/ivtv. However, I can't find any documentation on valid options. Anyone know where to find them?

Has anyone managed to burn a DVD with two mono tracks instead of one stereo? When I get time I might look into this, but any pointers to save some time would help.

Before you start, you might want to look at http://v4l2spec.bytesex.org/spec/vidioc-g-tuner.html. In particular, table 6. I expect the "Undefined" combinations will behave differently based on your card, so you may end up doing some trial and error.

The command to change the audio is:where valid values for n can be seen with "ivtvctl -Z". From my experience:

n=1 : Stereo. This is value that my card is set for initially. However, calling ivtvctl with 1 (which should have done nothing) changed the behaviour. During a bilingual broadcast, both channels are now recorded. This is what I use.

n=0 : mono

n=1 : When stereo, record stereo. When bilingual, record left channel.

n=2 : When stereo, record stereo. When bilingual, record right channel.

Where to put it? Well, bootmisc.sh runs too soon, so I put it in as a startup in ~mythtv/.fluxbox/apps.
Another hint: In the General settings, there is an option to mute left/right separately. If you set this, you can use mute to toggle between channels.

Allen

_________________
ASUS AT3N7A-I (Atom 330)
TBS 8922 PCI (DVB-S2)

Or you can do a quick hack in the ivtv source code:



This will cause the B-channel to be used as default when a dual soundtrack is present.[/code]

Great tip! Thanks...

I had it working on R4, but forgot to put it back working after updating to R5

WAF has increased by 50% with this

Stefan

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