Asio Chuck

lamarcph · Last edited by lamarcph on Thu Aug 30, 2007 10:01 am; edited 1 time in total

Hi,

I was able to compile Chuck for Asio. There is no code change. Rtaudio is Asio compatible, it was more a question of reconfiguration.

Please understand that this is an experimental version that I tested for a few days. It may or may not fits your needs. From what I can see: realtime latency is a lot better but it's harder on the cpu than the directsound version.

Please be aware that Chuck is bound by the GNU GENERAL PUBLIC LICENSE and the licence described here for rtaudio : http://www.music.mcgill.ca/~gary/rtaudio/index.html#license

The chuck main page is : http://chuck.cs.princeton.edu/

I am trying to post the executable file, renamed as chuck.ck.
To use it, just rename it to chuck.exe

Make sure to have a backup/copy of some sort of your current Chuck install before replacing your chuck.exe. It may not work, I only tested it with a Motu 828MkII. If you enconter dropout, try adjusting the buffer on the soundcard. It might have to be put to something higher than normal. Here with a buffer of 514 samples I can play fairly complex stuff and still have a very usable latency for midi input.

Please try it,

Philippe.

[edited for 1.2.1.0]

[edit by Kas; the latest version; 1.2.1.2 build by Steve is to be found on the second page or by clicking here]

chuck1210asio.ck

Description:

Asio build of the last chuck version : 1.2.1.0
This is "experimental", it could crash and burn. However, I tested it a bit and it seems ok.

Download (listen)

Filename:

chuck1210asio.ck

Filesize:

1.48 MB

Downloaded:

1902 Time(s)

Kassen · Posted: Wed Jun 20, 2007 10:37 pm Post subject:

Works like a charm on the OTF examples!

multi-channel works too but requesting "my_signal => dac.chan(3);" yields a nullpointer if ChucK isn't started with a request for more then 2 channels. That's likely a existing issue not caused by your patch though.

Win XP, sp1, E-MU1616m

chuck --probe detects all 6 inputs and all 6 outputs I have installed too. Doesn't detect any of the WM outputs in this form.

Again; great job!

For those just tuning in; this came from a discussion on the ChucK-dev list where Philippe reported that he got Asio working. So; testers are needed, preferably people who got bored with things like bungy jumping and fire jugeling and are looking for a little more danger, as well as a good place to host this. So; here we are.

lamarcph · Posted: Wed Jun 20, 2007 11:24 pm Post subject:

If i am not mistaken, rtaudio loads and create channel at chuck startup. Also, if you would like to access only channel 5, you must request 5 channels, and then only use channel 5. This too is a limitation/feature of rtaudio.

The DirectSound api is not loaded in this build, only Asio devices will be usable.

Kassen · Posted: Wed Jun 20, 2007 11:43 pm Post subject:

Got it.

I suspected the lack of WM was known; I pointed it out in case that would be a EMU issue.

About those channels; I think it would be better if, upon compilation, ChucK would compare dac.chan(n) against dac.channels() and give a error if n isn't smaller then the number of channels instead of generating a nullpointer error when running. Maybe that's not such a simple check as the parser needs to know the state of the VM and the two might be seperate?

But that's another matter altogether, it works. I have to say I'm quite impressed with RTAudio and ChucK that this just works when switched on, despite the Princeton people not having a ASIO system to test with. That's pritty clean....

moudi · Joined: Oct 07, 2006 Posts: 63 Location: Bern Switzerland

woohhooooot Very Happy

this is definitly great news for all chuck addicted windows chunkies Cool

i hope that i'll be able to test this weekend some basics.
(xp sp2 with a rme hammerfall multiface).

hehe.. seems that i need to learn all the chucking vm commands since i only used the miniAudicle so far. Laughing

cheers to the devs
/moudi

Kassen · Posted: Thu Jun 21, 2007 12:36 pm Post subject:

It's not that hard and if this turns out to work or if we know where and why it fails I imagine we'll see official updates quite soon. It'd be realy cool if this would work with ASIO4ALL as well, that'd open it up for those on more modest cards too.

I didn't have a single hickup and in fact I think it opened more sampling rates too. On that topic; you might want to beware with the outpu of "chuck --probe" on a RME. I saw some odd stuff with the Mini being unable to deal with the variable bit-rate that RME can adapt too.

kijjaz · Posted: Thu Jun 21, 2007 3:44 pm Post subject:

Yes.. this is a good exciting news!
i'm gonna test on emagic a26 usb audio interface and rme hammerfall multiface also.

Consul · Posted: Thu Jun 21, 2007 6:37 pm Post subject:

I'll definitely be giving this a test drive. I'm stuck in ASIO4ALL territory for the moment, so I can report back how everything goes.

Consul · Posted: Fri Jun 22, 2007 8:49 am Post subject:

Well, I have it working fine with ASIO4ALL, without any real issues. I can't really test latency, as I don't have a MIDI in with a keyboard set up at the moment.

Next, I'm going to try it out with Reaper's ReaRoute ASIO loopback driver, and see how that does. chuck --probe shows that driver coming up as dac2, so that's a good sign already.

Consul · Posted: Fri Jun 22, 2007 11:11 am Post subject:

... And here it is, Reaper recording a track straight from ChucK:

Posted Image, might have been reduced in size. Click Image to view fullscreen.

Is it not nifty? I still need to figure out a way to test latency, but I don't have the room right now to set up my monster Kurzweil MIDIBoard mastercontroller.

moudi · Joined: Oct 07, 2006 Posts: 63 Location: Bern Switzerland

Kassen · Posted: Wed Jun 27, 2007 8:21 pm Post subject:

After a quick test it seemed to behave fine on a RME. There was a odd noise that persisted after closing ChucK down but that seemed to be some sort of feedback loop in the virtual mixer.

Didn't have the time for a more in-depth investigation but --probe looked fine and my quick code to send random pitches to ten different dac channels compiled without error.

solipse · Joined: Oct 01, 2006 Posts: 5 Location: france

Thank you lamarcph,

I finally will be able to plunge me in chuck.
after my first tests (xp pro, rme) that seems to function perfectly… thank
you still!

solipse

kijjaz · Posted: Mon Jul 02, 2007 4:54 am Post subject:

Wow yes! Now I'm able to use ChucK with RME Hammerfall Multiface on windows at last!
Thanks.. This is such a good news.

lamarcph · Posted: Mon Jul 02, 2007 2:50 pm Post subject:

hi,
I am working on a new version of the .exe that would work with both Asio and DirectSound.

However, school is taking way to much time these days, so it as been put on hold.
I should get back in a week.

It's fun to see that it works!

Thanks,
Philippe.

L.N. · Joined: Jul 03, 2007 Posts: 3 Location: Helsinki/Finland

Very nice one! I love it and my multiface started purring too:)

This should take some overhead off of the audio buffer streaming.

When will we see an ASIO implementation in miniAudicle,,,?

Kassen · Posted: Wed Jul 04, 2007 2:08 am Post subject:

lamarcph · Posted: Fri Jul 20, 2007 9:27 am Post subject:

Rearoute is quite wonderful.
For some unknown reason, when I use Chuck => ReaRoute => Reaper => ASIO-Motu the cpu usage drops a lot compared to Chuck => ASIO-Motu.
ie I can run an array of 100 detuned SinOsc with a cpu usage of 40-50% while the Chuck => ASIO-Muto will crash and burn at 80 SinOsc max.

Anyone knows why?

Kassen · Posted: Fri Jul 20, 2007 9:39 am Post subject:

My bet would be a larger buffer or perhaps rearoute makes it's calls in a way that needs less cpu then the Motu?

Definately interesting.

chuckles · Posted: Fri Jul 20, 2007 12:33 pm Post subject: Works here too

Just a data point: Phillipe's executable seems to work just fine for me too. I have a generic Windows XP machine running a Celeron 2.2G, built in "SoundMax" sound chip.

Will try on my P4 system with the Echo MIA card this weekend.

Thanks to Phillipe and cheers to all.

...c...

lamarcph · Posted: Thu Aug 30, 2007 10:03 am Post subject:

The first post was edited with the 1.2.1.0 build.

Feel free to try it.

Thanks,
Philippe.

Kassen · Posted: Thu Aug 30, 2007 12:15 pm Post subject:

You're a hero.

blue hell

moudi · Joined: Oct 07, 2006 Posts: 63 Location: Bern Switzerland

hi all
due to kassen's request i made a new asio chuck executable from the 1.2.1.1 source version.
it is still experimental, and i haven't tested this executable so far (only --probe). however, it's the same chuck version as i'm using in the asio-mini which is working well for some months now.

enjoy it
/moudi

chuck.zip

Description:

ASIO ChucK V1.2.1.1 experimental

Download (listen)

Filename:

chuck.zip

Filesize:

628.1 KB

Downloaded:

1111 Time(s)

Kassen · Posted: Sat Apr 12, 2008 7:39 am Post subject:

You're the best! Thanks so much.