Hey

Once again I'm back on vista. My brief journey to puredyne goes something like this.

from puredyne
partitioned new hard drive with 4 partitions 1-swap , 2 ext4 200Gib, 1 NTFS 200GB . Copied Vista to NTFS partition with gparted(started to do this with dd but with new Gibabits stuff I was skeered but hey a platter is a platter and a cluster is a cluster right). Actually there was a 5th partition in there which was the vista restoration partition but I eventually deleted it for obvious reasons.

Removed old drive ,
took machine to ethernet connection with internet,
booted to vista ,
installed Norton virus scanner - only 1 virus, 2 tracking cookies, and one gain trickler after over a year with no virus scanner, Thats pretty good and shows you can be selective about what you download and where you visit on the web and not get any viruses.

Was trying to get windows movie maker to work with mov codec which it doesnt.
Installed auto updates for the first and only time. this took about 3 hours and still needed to install service pack 1, 2. Aborted trying to update win movie maker

****Problem 1***** MS movie maker does not work with GEM mov video output codec.

Installed latest Nvidia drivers for vista.
Woohooo OpenGl hardware acceleration GEM works so much better in vista now.

*****Problem 2********ASIO for all does not allow 2 applications to run with audio and midi at the same time. If I wanted to run Widi and play my guitar so puredata can receive midi input from guitar ASIO will not allow it but ASIO for all is the only way I can get latency down so this would be feasible.

Got frustrated.

Installed fresh copy of puredyne onto 2nd ext4 partition.
ran puredata audio latency good with fresh install. gem video bad.

used synaptics to install nvidia drivers. v185 I think.
ran GEm error no opengl config.

downloaded gdeb , flash player, google chrome, nvidia drivers from nvidia site.
installed gdeb from terminal, flash and chrome from gdeb.
rebooted to log in as root and iunstalled nvidia drivers.

woohoo hardware acceleration for opengl

******problem 3************
gem works great but audio glitches with puredata window visible.
when only gem window is visible i can unaudioglitchily move the mouse around to control same parameters that would normaly be controled with sliders in pd window.

Seems like before i upgraded nvidia video drivers hw:do o whatever it is, was listed in JackD as realtek HD Audio, now it is listed as NVIDIA HD Audio.

So Gem works great but not when Pd window is open and I think my audio drivers were replaced with Nvidia.

I would really like to get back to my patch and stop wasting time on these operating systems and hardware configurations I thought in the last 15 years all this hardware acelleration and autodetection would be figured out but no all we got is rc.0, rc.01, rc.02, rc, etc...... instead of just rc.d.

Ok I'm getting an error when I exit puredyne that says pid file not found is jackd running. anyone know what that means?

Also does anyone have a keymap for gem keyboard for linux, windows and mac so I don't have to record them.

Any suggestions about what to do about my ASIO problems in windows?
Any suggestions about my audio driver in Linux?
Any suggestions about my GEM mov video / windows incompatibilities?

I can import the mov video and audio to SF Acid 3.0 and output a 2Gb avi then import it into windows movie maker but this is crazy to do for a 7 minute 12fps 320x240 video.

Ahhhhhhhhh!
Any suggestions are welcome!

PS I believe someone could rewrite puredata's audio and video interface in assembly language to control their hardware before figuring out how to get these operating systems to do it.

The ASIO problem is actually a port audio problem.

The mov thing with SF Acid is figured out.
Select custom output. leave framerate as that detected or open mov in vlc to get framerate, chose project resolution, choose cinepak. This seems like the best settings for video.

For 16:9 512x288 is a good enough resolution for uploading to youtube and watching in the little youtube boxes.
Anything larger than this and my patch glitches anyways.

OK so now I have reinstalled 2 vesions of puredyne, 9.10 and 9.11, and ubuntu studio 10.10. None of them have audio working without dropping out at the same latency as on windows. With PureDyne 9.10 after an upgrade to the latest NVIDIA drivers I can get almost unglitchy performance at 60ms using ALSA instead of jack. I've tried several buffer sizes with jack and still get glitches even setting latency to 150ms in pd. I don't see the audio drivers in the package manager but I'm going to try updatig them, alsa, jack, pd, and whatever else I can think of.

Do you run pd with the -rt flag for realtime priority ?

Also what is your soundcard model ? I have an intel hda and I had to tweak the /etc/modprobe.d/alsa-base.conf file to make it work properly.

I did try on all os's with -rt and -jack. I also increased the runlevel of the timers and interrupt of the sound card. I haven't tried modifying alsa-base.config yet. What do you change? I have no idea the model of my sound card. I have HDA NVidea listed as hw:0 and ALC662 rev1 Analog listed as hw:0,0.
I'm not even sure if that's correct. I guess I'll have to get out the magnifying glass and look on the motherboard to find out. Or put in my soundblaster live which doesn't work with windows vista but worked so fine with XP and got much lower latency on a much slower machine. It's really noisy though compared to this HD device. Can you record with more than one input at once with UBUNTU on the Sound blaster live?

I think you can know your soundcard by typing "lspci | grep Audio" in a terminal, if not, type "lspci" and find in the list what looks like a sound device).

If your soundcard is supported (which seems to be the case of soundblaster live) and jack well configured, you can record at once as many input your device has.

00:05.0 Audio device: nVidia Corporation MCP61 High Definition Audio (rev a2) is what I get from lspci | grep Audio.

That is very cool about the SoundBlaster Live with jack.

Does this look familiar ?
http://ubuntuforums.org/showthread.php?t=676166

Does this page help ?
https://help.ubuntu.com/community/HdaIntelSoundHowto

kyro

the first link does not. There are only 3 audio connections on the back of my machine and 2 on the front. The 2 on the front are for mic and headphones where the 3 on the back are lineout, micin, and line in.

Looking at the second link I'm getting Realtek ALC662 rev1 as the soundcard. haha!

Ahh maybe my (default) is set to digital output.

I found the manufacturer of my motherboard and in the specs it says the audio is Audio: 5.1 channel, Realtek ALC861 (HDA).

Which does not match anything in puredyne. I guess that could be part of the problem.

I found the audio chip on the motherboard and it is an ALC662. Crazy as the motherboard manufacturer lists it as an ALC861 must have the wrong sticker on the motherboard.

Ok. So you should try to find the appropriate alsa option for your soundcard.

sudo gedit /etc/modprobe.d/alsa-base.conf

and add the following line at the end of the file:

"options snd-hda-intel model=MODEL"

where MODEL is the name of your model. See http://www.kernel.org/doc/Documentation/sound/alsa/HD-Audio-Models.txt , search for ALC662 and ALC861. Then save the file, reload alsa (sudo alsa force-reload), and mute/unmute the soundcard. It's a trial and error step.

I actually tried a smaller patch on both ubuntu studio 10.10 as well
as puredyne 9.10.
On both systems the audio was flawless using a 6ms buffer in pd.

So there is nothing wrong with my audio setup.

But still the larger patch that runs fine on windows with 50ms buffer
will not run without glitching with jack on either linux system.

There is a difference in gem's default video codec between linux and
windows. However I have tried the patch without even loading gem.

What else could be the difference between linux and windows with pd?

Maybe I found the problem. The SATA IRQ and sound card IRQ with puredyne are both set to IRQ 23. I'm not certain the SATA driver is Nvidia but the SATA drivers in windows are listed as Nvidia. The IRQ for the SATA driver in Windows is not set to IRQ 23.

A big duh to me. In Ubuntu Studio 10.10. I set the priority of pd, pdgui, jackd, and a few other things to -20 and the audio plays without glitching. Now I have to figure out what else I have done. Maybe a fresh install and try that from the start.