Subject: Re: [mythtv-users] Chaintech 7NIF2 Sound Problems

[Gregory J. McGee]

The driver lies, or isn't reporting capabilities in the right format
perhaps, probably.

Mine intermittently gives the same bs error in the logs, but works fine.
(FIC Au11//NF2/2100+ (11x190 at the moment) 

If you can record and play at the same time smoothly, using the line in
and the sound out on the MB audio, it IS running full duplex, it just
may not be reporting it correctly.(?) or it doesn't matter.

If running KDE, turn arts OFF, and If you don't want to, select in
hardware tab "Threaded Open Sound System" (Kudos to the fellow who
previously posted that here)

Install aumix. It will actually save/restore your mixer settings, I had
fits with alsa, alsactrl never right on Debian or Mandrake for me.
(aumix MAY work better for alsa (oss devices) ... didn't try)

Also make sure you have "use realtime priority" OFF in KDE sound setup.

I recorded ~10 hrs in the last 3 days, and it all looks almost
DVD quality, even after transcode, and the sound is perfect.

720x480 210 rtjpeg record, 2800 mpeg4/HQ/4mv transcode
settings worked best for me. (~1.2G/h w/128k mp3 audio) 

All that matters is that it works, and is stable.

Then it's just a question of "how big is your harddrive?

Nevermind what they say, size DOES matter ;-)

I just wish mythtv support recording tracking on removable media.
...sort of like a CD/DVD database, I could just copy the nuvs off to
DVD,and get an "Insert removable disc XXX, where XXX is whatever you
called it when you backed it off. when you select "view recordings"

Would save recording duplicates as well.


> Message: 3
> Date: Wed, 31 Mar 2004 10:34:39 -0500
> From: Ben Brown <mythtv at handcoder.com>
> Subject: Re: [mythtv-users] Chaintech 7NIF2 Sound Problems
> To: Discussion about mythtv <mythtv-users at mythtv.org>
> Message-ID: <406AE50F.8060703 at handcoder.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> 
> I wouldn't mind using a dedicated sound card, but I can't find a low 
> profile card anywhere.  I've already modified the backplates on my 
> current cards to fit into the low profile case.  If you or any one
> knows 
> of a lowprofile audio capture card I'd love to know where to get it. 
> I 
> don't care about the sound out, I can continue to use the onboard card
> for that, I just need sound capture.
> 
> Thanks
> Ben
> 
> Dalen Kruse wrote:
> 
> >Hmmm.....  A little strange that two people have this working fine
> with
> >full-duplex.  I tried the NVIDIA OSS drivers and ALSA drivers.  With
> both
> >drivers, I had my mythbackend giving me a message that my sound
> hardware
> >wasn't reporting full-duplex capability.  I'm not sure if it's a
> hardware
> >or driver issue.
> >
> >Also, I've noticed on this list that there are two versions of this
> board.
> > The "older" board with SPDIF headers on the board and a "newer"
> board
> >without the headers.  I have the newer board.  My board also does not
> use
> >the nForce2 MCP-T chipset for sound.  It has a separate CMedia
> chipset. 
> >Perhaps the older boards are using the MCP-T which has full-duplex
> >capability?????  I don't know.
> >
> >What I do know is that my life has been much more enjoyable since I
> >disabled the on-board sound and started using a dedicated sound card.
> >YMMV.
> >
> >
> >
> >  
> >
> >>I've got a 7NIF2 running full-duplex just fine.  I've got a TV
> Wonder VE
> >>in a custom (gutted component cd player) case with the audio output
> >>going into the line-input of the motherboard.  Volume control works
> >>perfectly.  The only problem I've had with the sound is a strange
> >>buzzing (live tv and recordings) that went away when I bumped up my
> mp3
> >>frequency to 48khz.  Now everything is working wonderfully in live
> tv,
> >>recordings, dvds, etc.
> >>
> >>Matt
-- 
Gregory J. McGee <gjmcgee at cableone.net>