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AV-710 - SPDIF Issues in mythvideo/music
http://forums.linhes.org/viewtopic.php?f=14&t=6537		 Page 1 of 1
Author:  vtphilk [ Fri Oct 21, 2005 9:56 pm ]
Post subject:  AV-710 - SPDIF Issues in mythvideo/music
Ok..So I must be a complete idiot since the av-710 is in the super easy to configure Dragon. But, I just installed r5a22, which by the way is AWESOME!!! since my hd-3000 worked out of the box...but only problem I have now is with SPDIF. I have disabled the onboard snd of my mboard and only thing there is:

root@mythtv:~# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: AV710 [Chaintech AV-710], device 0: ICE1724 [ICE1724]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: AV710 [Chaintech AV-710], device 1: IEC1724 IEC958 [IEC1724 IEC958]
Subdevices: 1/1
Subdevice #0: subdevice #0
root@mythtv:~#


However, I have the mixing problem with the fast fwded sounding voices in mythmusic (cause of the 44.1khz/48 thing) and my mythvideo has no sound.

I was hoping someone using SPDIF on this card might be able to tell me the command line they are using in the mythvideo mplayer settings for -ao and -ac. Also, have you been able to get it to re-mix down the sound.

I followed everything in the following post:

http://mysettopbox.tv/phpBB2/viewtopic. ... o&start=15

Including using the .asoundrc file in there but still not luck. PLEEASSE help !!! I'm so close to getting this up and running :) Thanks mucho in advance.


Also...on another note. Can't wait to see the Backend/Frontend devices that go for sale on mythic.tv . I would luve to have a rack mount/backend with 2 hd-3000s and a cable card or sumtin and then have cheaper hd/sd frontends :) that would be ultimate and I'd pay 2g's or so for stuff that just worked! The Dragon looks sweat but is it silent enough for the family room?
Author:  Human [ Sat Oct 22, 2005 8:01 pm ]
Post subject:  Re: AV-710 - SPDIF Issues in mythvideo/music
It's another one of those things that's easy to do once you've done all the right searching :) To use the right command-line for the AV-710 to get optical S/PDIF, take a look in /usr/bin/DragonSQLtweaker.sh. Example:

Code:
mplayer -fs -zoom -quiet -vc mpeg12,ffmpeg12, -vo xv -vf pp=lb -ao alsa:device=mplayer -ac hwac3, %s


There are other audio-related settings in there, too, such as how to configure the mixer within MythTV so you get all your audio to use S/PDIF.

This will get you the same asound.conf we use:

Code:
/bin/cp $KRP_DIR/Dragon/Dragon_asoundrc /etc/asound.conf


vtphilk wrote:
Also...on another note. Can't wait to see the Backend/Frontend devices that go for sale on mythic.tv . I would luve to have a rack mount/backend with 2 hd-3000s and a cable card or sumtin and then have cheaper hd/sd frontends :)


Thank you for your enthusiasm :) Keep in mind that an HDTV front-end requires a powerful processor and a decent graphics card for libmpeg2 acceleration. It should also be as quiet as possible. Once you start to spec out an HDTV front-end, you find that it's basically an HDTV back-end with a smaller HDD, no optical drive, no tuner, and greater silence requirements. When you add in the cost of a dedicated HDTV back-end, you may come to the same conclusion that we did, namely that at this point in time, dedicated HDTV front-ends aren't as cost effective as a combined front- and back-end. There's only so much you can remove from the front-end, and it doesn't end up saving you more money than the back-end costs. You'd also be assembling, installing, and upgrading two full computers instead of one.

vtphilk wrote:
that would be ultimate and I'd pay 2g's or so for stuff that just worked! The Dragon looks sweat but is it silent enough for the family room?


It's quieter than a DirecTivo, if that means anything to you :) So yes, it's quiet enough for the family room. That's where mine is, and if it weren't for the power and HDD LEDs, I would seldom know it was on.
Author:  vtphilk [ Sun Oct 23, 2005 2:29 pm ]
Post subject: 
Awesome...I'll give it a whirl. Nice scripts for the Dragon thou :) I actually tried cheating and re-installing with the install option of "dragon" so I could see your settings. However, these scripts will help mucho..hopefully I can get my sound working.

I have the hd-3000 and the av-710 on a asus p4800vm micro-atx board. I'm on my third micro-atx board trying to find hardware for myth so the reference platform will be of great use!! Looks like the only thing that I won't be able to get working is bootsplash cuz I guess I saw a note somewhere in the forums saying dosen't work too well with the NVIDIA drivers and I got a 5200.

Thnx again
Author:  Human [ Sun Oct 23, 2005 2:47 pm ]
Post subject: 
vtphilk wrote:
I actually tried cheating and re-installing with the install option of "dragon" so I could see your settings.


The return code from KRPAutoDetect.pl determines whether or not the Dragon-specific tweaks launch, so entering "dragon" at the installer prompt won't actually run the scripts. You can run them by hand, though, if you understand what you're doing :)

There are branch points throughout KnoppMyth-run and some other installer scripts that do different things for Dragon vs. non-Dragon. The same framework will work on further KRP systems, too.

vtphilk wrote:
However, these scripts will help mucho..hopefully I can get my sound working.


If not, just let me know. All the settings are represented in the SQL.

vtphilk wrote:
I'm on my third micro-atx board trying to find hardware for myth so the reference platform will be of great use!!


I know Cecil did a lot of work to get the VIA chipsets better integrated in this release, so you may consider using one of them. If we build a smaller form-factor KRP system, I think this is where we'll start.

vtphilk wrote:
Looks like the only thing that I won't be able to get working is bootsplash cuz I guess I saw a note somewhere in the forums saying dosen't work too well with the NVIDIA drivers and I got a 5200.


The reports on this are inconsistent. It works great for some people and horribly for others. It's probably a combination of factors. Dragon uses nVidia drivers, and bootsplash worked wonderfully with it. Others reported problems with the virtual terminals, but I didn't have any issues. So you could just try it and see if it works for you.
Author:  Spektr [ Mon Nov 14, 2005 9:37 pm ]
Post subject: 
Hey Human, mind posting the asound.conf you have for the AV-710 for the Dragon? I have an AV-710 also, and am having a few issues getting it configured properly...


Thanks!
Author:  Human [ Tue Nov 15, 2005 2:39 pm ]
Post subject: 
Spektr wrote:
Hey Human, mind posting the asound.conf you have for the AV-710 for the Dragon?

I can do better than that: It's already on your system if you use R5A22:

Code:
$KRP_DIR/Dragon/Dragon_asoundrc


Just use it as your /etc/asound.conf

Note that it's set up for digital audio using the optical S/PDIF connector. It hasn't been tested with the digital coaxial connector or any of the analog outputs.
Author:  Spektr [ Tue Nov 15, 2005 6:48 pm ]
Post subject: 
Unfortunately, I am not using R5A22 yet. I have however gotten my AV710 working beautifully with AC3 passthrough to my receiver as well as PCM (all over SPDIF), but I'd still like to see how you did it! If you could post it here that would be great :)

Human wrote:
Spektr wrote:
Hey Human, mind posting the asound.conf you have for the AV-710 for the Dragon?

I can do better than that: It's already on your system if you use R5A22:

Code:
$KRP_DIR/Dragon/Dragon_asoundrc


Just use it as your /etc/asound.conf

Note that it's set up for digital audio using the optical S/PDIF connector. It hasn't been tested with the digital coaxial connector or any of the analog outputs.
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