Pd-list January 2002

pd-list@lists.iem.at

83 participants
162 discussions

sony 9-pin (RS422) transport protocol
by Thomas Grill 16 Jan '02

16 Jan '02

Hi list, has anyone made use of the sony transport protocol in pd? Do there exist any objects/patches for it? thanks Thomas

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Anyone using pix_video under windows?
by Ben Bogart - FMPM/F1999 16 Jan '02

16 Jan '02

I'd like to get to pix_video to work under windows, but have had so far no luck with a Kodak USB DVC-265 webcam. What video devices are supported by pix_video? How about Organge Micro Ibot? Thanks Ben B. Bogart ---------

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Re: [PD] 3 channels in 1 channel out with PD
by Ben Bogart - FMPM/F1999 15 Jan '02

15 Jan '02

Ok, so what is the best way to get 3 chaanels in a cost effective way? What cards do people suggest. Say a budget of $100 max? PCI or USB (but it would be nice if it were supported by linux) ben On Tue, 15 Jan 2002, =?ISO-8859-2?Q?Miha_Tom=B9i=E8?= wrote: > Hello! > > On Mon, 14 Jan 2002, Ben Bogart - FMPM/F1999 wrote: > > So really my only cost effective option is to get another PCI128 I hope > > configuring OSS again will be less trouble than it was the first time! > > Well, yes. But there is a trouble with multiple sound cards. They tend to > drift out of sync sooner or later. So the right way is to get a > multichannel card. But I have no experiance with this kind of > multichannel/multicard operations myself, I'm just passing you what I've > heard. > > > I suppose once you have multiple OSS devices you simply specify the > > device numbers for in and out? or do you just set the number of input > > channels? > > I've never done that. But maybe you should try ALSA. ens1370/1 drivers are > excellent. > > Take care, > > Miha... > > - Miha Tom�i� --- C. na postajo 55 -- SI-1351 Brezovica pri Lj. --- SLOVENIA - > > B. Bogart ---------

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audio interfaces
by Joreg Diessl 15 Jan '02

15 Jan '02

halo. is anybody working with the m-audio quattro usb interface under w2k? what other audio interfaces can be recommend for low latency work under w2k for one that cannot afford the hammerfall? thanek. joreg. -- .- GMX - Die Kommunikationsplattform im Internet. http://www.gmx.net

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latency, -frags, and -blocksize
by jfm3 14 Jan '02

14 Jan '02

I am having a hard time conceptualizing what effect the -frags and -blocksize parameters have on Pd. I would like to get the best MIDI timing I can. I've fooled around with both parameters a bit, and it seems like -frags 2 -blocksize 256 is as small as I can get it without having even the test audio/midi patch buzzing. I seem to remember having these much smaller before. Does this sound about right? And what about -sleepgrain? My laptop has a i8x0 sound card built in that I'm using. For MIDI I use the serial port and a MIDIator 124W. I have lowlatency patches applied to a 2.4.18 kernel, and am using ALSA 9b10. Thanks for any and all help. (jfm3)

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Re: [PD] 3 channels in 1 channel out with PD
by Ben Bogart - FMPM/F1999 14 Jan '02

14 Jan '02

Hi Miha, Thanks for your reply. So really my only cost effective option is to get another PCI128 I hope configuring OSS again will be less trouble than it was the first time! I suppose once you have multiple OSS devices you simply specify the device numbers for in and out? or do you just set the number of input channels? Thanks On Mon, 14 Jan 2002, =?ISO-8859-2?Q?Miha_Tom=B9i=E8?= wrote: > Hello! > > On Sat, 12 Jan 2002, Ben Bogart - FMPM/F1999 wrote: > > I have a PCI128 card and running PD on windows and Linux. I'm wondering > > if there is any way I can use three Inputs and 1 output on my PCI 128? I > > think there was some code out there to do multiple outs (more than 2) on > > linux with the PCI 128? Could that be modified to do 3 in and 1 out? > > Sorry to disappoint you but you can't do this. PCI128 has ONE adc and TWO > dac's. This is all you can use. If you use mono channels you can have two > ins and four outs. Not a channel more -- sorry. > > Miha... > > - Miha Tom�i� --- C. na postajo 55 -- SI-1351 Brezovica pri Lj. --- SLOVENIA - > > B. Bogart ---------

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Re: [announce] Sonograph~ is dead. Viva Sonogram~ !!!!
by Yves Degoyon 14 Jan '02

14 Jan '02

hi again, i was annoyed ( and you must have been too ) that, during a sonogram update, one couldn't use the GUI anymore so, i introduced a new control message : sleeptime 100000, 200000, 500000, 1000000, ....( more ?? ) this puts the update thread to sleep after each slice of 5 blocks. if this value is high, the update is very slow but you can still use the GUI. if it's too low, you'll be back to previous situation. the correct value has to be tuned for each machine ( not only the CPU matters, but the wm you're running, and much more parameters ). of course, a new archive is available and i also put the grid object which i had in my bag. it's a 2-dimentionnal control object, ala "kaospad". speaking of this, does anyone used a "kaospad" ??? if yes, which parameters do you control with X and Y ??? cheers, Yves/ http://ydegoyon.free.fr

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delay box seems quantized to 10ms?
by Larry Troxler 13 Jan '02

13 Jan '02

Hi, I'm getting some dissapointing behavior from the "delay" object. Even though I am using the real-time-patched kernel from Planet CCRMA (this is on Linux, BTW), it seems that my delay values (+/- some jitter) are only quantized to 10ms. I would have expected that PD uses the rtc device and hence would not depend on the kernel's HZ resolution, but apparently this isn't so(?) This brings to mind the following questions: 1. Is it the case that just this delay object doesn't use the rtc device, or is it the case that nothing in PD uses the rtc device? 2. (Not really a PD question) If the answer question 1A is no, then that means that the Planet CCRMA real-time kernel still uses a 100Hz HZ value, right? I'm kind of surprised at this, unless using larger HZ values breaks some drivers or something. Best Regards Larry Troxler Test patch below : #N canvas 0 0 450 300 10; #X obj 26 16 bng 15 250 50 0 empty empty empty 20 8 0 8 -262144 -1 -1; #X msg 22 50 1; #X obj 24 148 realtime; #X floatatom 30 190 0 0 0; #X obj 22 77 metro 1000; #X obj 81 112 delay 5; #X connect 0 0 1 0; #X connect 1 0 4 0; #X connect 2 0 3 0; #X connect 4 0 2 0; #X connect 4 0 5 0; #X connect 5 0 2 1;

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pd subpatches always open on open of parent ?
by Larry Troxler 13 Jan '02

13 Jan '02

Hi, I've got a question which probably has already been answered (sorry). It seems that whenever I load a patch that uses a "pd *" style subpatch, the subpatch window always opens as well, when the main patch is loaded. Is there a way to set this, and/or is there something I'm doing wrong? Just want to avoid the screen clutter and the nusiance of having to click-close the subpatch when I don't want to see it... Larry

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Easy way to reload new versions of abstractions in a patch?
by Larry Troxler 13 Jan '02

13 Jan '02

Hi again, and again, sorry for being lazy in my research, but I find that very, very, frequently, I have a patch loaded and am fixing bugs (or enhancing or tweaking) an abstraction that the patch uses. The only way I know of to test the changes in the abstraction, is to close the main patch and reload it. Is there an easier way? Could there perhaps be a "reload" menu item made that does this in one step? I find it hard to beleive that this isn't a common problem - I mean, refining and tweaking abstractions for me is a very frequent activity, and unless these abstractions can be loaded on there own, there has to be a main patch that drives them. This is especially true if the abstraction has multiple instances - for example, if it implements a single voice in a polyphonic instrument. So I suspect that unless I'm missing something, everyone else must also be doing the "close"-"file/open" thing on the main patch every time they make a change. Larry

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Pd-list January 2002