Pd-list November 2003

pd-list@lists.iem.at

160 participants
289 discussions

rawHID - linux HID objects
by Hans-Christoph Steiner 17 Nov '03

17 Nov '03

So I got inspired to clean up my code and write some help patches. So now [linuxjoystick] works, and I wrote an joystick abstraction that uses [linuxevent] at its core. [linuxevent] should also support gamepads, tablets, USB dials, keyboards, any device supported by the Linux event system. If you write an abstraction for one of these devices, please send it to me to be incorporated in this package. http://www.pure-data.org/Members/hans/#rawhid .hc zen \ \ \[D[D[D[D

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Re: [PD] antialiasing
by doktorp 17 Nov '03

17 Nov '03

Erm, im an idiot it works fine with text, and looks great. sorry for the mis-info. -dok On Nov 17, 2003, at 2:41 PM, ben(a)ekran.org wrote: > Hey there, > > You'll have to ask chris about the 2|4|8 thing, I think they are > subsampling values?? Higher number means more smooth. The results look > great, I'm really looking forward to running Gem on OSX when my laptop > comes in. > > You say FSAA does not do anything on the text objects?? definatly a > gem-dev(a)iem.at issue. > > You can get the CVS help through CVS (see the directions on the > sourceforge site for Gem.) otherwise Chris used to have a tarball on > the > same page as the binaries.... > > Good luck. > Ben > > >> Cool, thanks. >> >> it was the upper case =) and it seems to work fine on OS X. Ive tried >> it on some patches that use lots of objects (like the tabwrite >> triangle >> patch posted a while back..), and it doesnt seem to use significantly >> more processing power. (if any at all, judging by top). >> >> you can see the diff: >> >> http://homepage.mac.com/doktorp/tri1.jpg before >> >> http://homepage.mac.com/doktorp/tri2.jpg after >> >> after playing with it for a while, it doesnt seem to want to do >> anything when using text objects though.. >> >> also, what is the significance of 21418 ? why that number? curious >> minds enquire. >> >> >> On Nov 17, 2003, at 12:48 PM, ben(a)ekran.org wrote: >> >>> >>> There is an extruded text object in CVS, I've not played with it >>> though (but I think there is a help file!) >>> >> >> I dont have the help file, anyone care to let me in on its secrets? >> (besides guessing the obvious) >> >> Thanks again >> >> -dok > > >

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Latency in realtime on linux
by Wade McDaniel 17 Nov '03

17 Nov '03

What exactly is realtime mode on linux? I get better latency numbers without using -rt. What does that mean? My sound device is a M-Audio Duo (usb) and it always throws weird comments on boot, like its not being loaded properly, but then sound emerges eventually, so it cant be that wrong... My next machine will have a hammerfall card. A good idea, no? gratze, -thewade

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diffrent numbers of in and outchannels
by noskule 17 Nov '03

17 Nov '03

hi list is there anyone how nows the meaning of "in and outchannels must match" . .cause i try to evaluate if i have to buy a new soundcard like multiface to get more then 2 outchannels by simultaneous use of in and outchannels, ore if i can wait a litle wile more to use my suppercool usb maya ex for 99 dollars witch has 2 in and 6 out witch is exactly my need to work with pd . ... nos

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Re: [PD] general gem newbie stupidity...
by CK 17 Nov '03

17 Nov '03

I read: > keep getting: > > Gem.dll: couldn't load > Gem: can't load library try to start pd with pd -verbose -path C:\where\gem\lives -lib Gem and report your findings. regards, x p.s.: I'm not completely sure about the path, since I don't use windos probably it's unix style so try with -path ../../relative/path/to/gem also -- chris(a)lo-res.org Postmodernism is german romanticism with better http://pilot.fm/ special effects. (Jeff Keuss / via ctheory.com)

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Re: Re: [PD] latency
by mattn-l＠rogers.com 17 Nov '03

17 Nov '03

> Quoting mattn-l(a)rogers.com: > > > is this because of portaudio on os x? > > yes. > > > or is there something i can do > > about it? > > start here: http://developer.apple.com/audio/macosxaudio.html > > i have too much on my plate right now to rip all the portaudio out of pd and > replace it with straight CoreAudio calls. but that's what someone needs to do... i'd love to be able to work on this, but i'm not really a c programmer.. i am willing to learn however. do you have an suggestions/recommendations on where to start? matt. 1

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Re: latency
by Winfried Ritsch 17 Nov '03

17 Nov '03

Hello, We are just ivestigating in this case at IEM. So I think it make sense to make it public. and I made a Wiki-Page on pure-data.org http://www.pure-data.org/Members/ritsch/latency/FrontPage Please everyone just put your experiences in that so we can evaluate and make a HOW-TO-DO and WHAT-IS-POSSIBLE this year and maybe doing some programming to get better results. Especially I will test the alsa and hdsp behavior and doing trying a low latency binding from pd to alsa direct (without jack). But I just sometimes think the problems are somewhere else than on drivers. mfg Winfried Ritsch

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motu828 with PD under osx
by Nick Fells 17 Nov '03

17 Nov '03

Hi, This might be one for the portaudio guys... I'm using PD in 8-channel mode with the MOTU 828 and it seems to work nicely, except that switching on PD audio resets the sample-rate of the motu to 96k - I have to go into the motu control console and switch it back to 44.1k every time. No error, no glitch (except a drop out with the sr change). This is also with the -r 44100 flag in the pd command line. I'm using pd 0.37 for OSX from Hans' Pd download page, with OSX 10.2.8, and just downloaded the latest motu drivers (1.07). Any ideas? Cheers, Nick

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streamin~ / streamout~ format
by Marc Lavallée 17 Nov '03

17 Nov '03

I guess this question is for Guenter Geiger, but I'd like to know what is the format used by streamin~ and streamout~ (I'm just too leasy to look at the source). Is it similar to the "raw" format? I'd like to use those externals with cstream (http://www.cons.org/cracauer/cstream.html) to get audio streams in and out of PD. -- Marc

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latency
by plessas＠sbox.tugraz.at 17 Nov '03

17 Nov '03

Dear List, I just want to add one comment to the latency issue in pd. I understand that there is a big advantage in using portaudio in pd. I am very glad that pd runs on any platform I've run across so far, but investing a lot of money into fast computers (to achieve low latency) is a serious matter I am indeed willing to do. On the other side, what does high cpu power help, if the lowest latency i get on is approx. 30msec? (I don't know if the low-latency kernel-patching people under linux are achieving better results). I'd like to be able to use pd in all those situations where you need lower latency, like realtime processing of acoustic instruments, dj's, and whatever is implied by the term "realtime". I feel strange by asking for other possibilities than using Portaudio, since I appreciate very much all programming work everyone has done in the community, which would not be available to all users of different platforms. I'd just like to hear the opinions of some people on the list, and I just don't want to be caught using max for running patches which require latencies lower than 30msec. I am so glad to use pd! Keep on the discussion, let's make pd even better! thanks! have a nice week! Peter_P

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Pd-list November 2003