Pd-list September 2004

pd-list@lists.iem.at

133 participants
217 discussions

PDTGB01.pd - external not in CVS
by ix＠replic.net 07 Sep '04

07 Sep '04

PDTGB01.pd won't properly load here and i've got 654 extras: expr (sin(($f1/360)*6.28319)+2)/20 ... couldn't create expr $f1+ha*aa*($f2-$f1) ; $f2+ha*($f1*(ba-$f3)-$f2) ; $f3+ha*($f1*$f2-ca*$f3) .. couldn't create etc.etc...dont see any filename with expr in /externals/ anywhere. perhaps someone can add it so that the flyer is in accordance with the rules of the contest? thanks :)....

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GeoLeds - Iceland inside and out: Annie On Ni Wan (aka Slimboyfatboyslim)
by Pall Thayer 07 Sep '04

07 Sep '04

Yet another project has come out of the Trans-Cultural Mapping: Iceland inside and out workshop. This time it's Annie On Ni Wans project "GeoLed's". Annie uses GPS data and a microcontroller to control a panel of LED's. Very interesting. http://pallit.lhi.is/insideout/?readme=55 -- _________________________________ Pall Thayer artist/teacher http://www.this.is/pallit http://130.208.220.190 http://130.208.220.190/nuharm http://130.208.220.190/panse -----------------------------

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Re: [PD] 64 bit PD
by Arie van Schutterhoef 07 Sep '04

07 Sep '04

>Dual CPUs or better yet multiple machines solve your problem today. -That's why OSC is such a nice aid to connect them all together, be it in the close vicinity or far apart from each other... AvS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..................................................................... ` |Schreck Ensemble . . . . . . . . . . . . . . . . . . . . + ` |# -laboratory for live electro-acoustic music- # | | http://www.schreck.nl/ | | http://www.xs4all.nl/~schreck/ | ` *===========================================================++ ` |Compositions http://www.xs4all.nl/~schreck/html/compo.html | ` |Samples http://www.xs4all.nl/~schreck/html/samp.html | ` |Patches http://www.xs4all.nl/~schreck/html/pat.html | ` |Videos http://www.xs4all.nl/~schreck/html/video.html | ` |Scores http://www.xs4all.nl/~schreck/html/scores.html | *===========================================================++ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .....................................................................

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Oggcast~ buffer size
by Jorge Cardoso 07 Sep '04

07 Sep '04

Hi all, I have been playing around with [oggcast~ ]plus Icecast2 and a question has arised: What is the effect of changing the buffer size in [oggcast~]? It would seem to me that using a bigger buffer would mean having a higher delay in the stream from to Icecast, but it seems to work the other way round! When I lower the buffer size in [oggcast~] I get higher delays in the sound stream... Can anyone explain how this works? Thanks, jc

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Re: [PD] 64 bit PD
by thewade 07 Sep '04

07 Sep '04

> Is there any advantage to using pure data on a 64 bit machine (if it > works)? > Or does the 64bit just mean more precise calculations? 64 bit simply means that programs are able to address larger blocks of memory. It may also mean more precise numbering if by default ints are 32 or 64 bits instead of 16, but I think thats a compiler thing, not a hardware thing. char=8bits int=16bits float=32 double=64 (I think) There might in the future be something like write combining where two sets of 32 bit values are combined, as it takes just one cpu cycle to move 64 bits as opposed to two cycles for normal x86 machines. Thats what Im hopeing for. Id really like to be able to do some serious synthsis while doing hardcore realtime video processing using Gem. I can do one or the other with my old laptop... Just not both. Too many dropouts. -thewade

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Pure Data Trigger Gang Bang 01 - HERE WE GO !
by Aymeric 07 Sep '04

07 Sep '04

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pd/pdp(+pf)/pidip/gem on gentoo - pseudo-howto
by Aymeric 07 Sep '04

07 Sep '04

Hello list, last time i had to reinstall my laptop, i dropped a few notes while i was installing everything back, maybe this can be useful to someone so here it is. note: this "howto" covers a pdp 13.x installation and how to build pdp_ffmpeg~ without breaking the portage tree. Could be useful if someone intends to make ebuilds of pdp/pidip/gem ... i think there is already one for pd. +! aym3ric.

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RE: [PD] 64 bit PD
by ba 07 Sep '04

07 Sep '04

I'm thinking about assembling a new system for Pure Data. What processor would you recommend? I was thinking about a P4 3.0 ghz with 800 FSB, or athlon 3200 or 64 3200. it seems the 64 will just run in emulation mode for now, until pd is rewritten (if ever) for the 64 bit machines. I heard the P4s have really good memory bandwidth, but that the athlons can be just as fast. any preferences? >===== Original Message From chris clepper <cgc(a)humboldtblvd.com> ===== On Sep 6, 2004, at 7:38 PM, thewade wrote: > > int=16bits Integers are 32 bits on 32 bit machines. A short would be 16 bits. Most machines bit depth is determined by the actual size of the registers used for processing, and most of the time that's only for integers. Common desktop CPUs have had 64 bit floating point units and 128 bit vector units for some time now. > There might in the future be something like write combining where two > sets of 32 bit values are combined, as it takes just one cpu cycle to > move 64 bits as opposed to two cycles for normal x86 machines. By 'move' do you mean process calculations on the CPU? You would be describing SIMD and really bad MMX style SIMD at that. Modern CPUs have 128 bit wide vector units like Altivec and SSE which are fantastic if actually used. If you mean 'move' as in load into the CPU from a memory location then that's already covered as most CPUs fetch at least 64 bits of data (8 bytes) or more at once. This has both good implications for streaming media like video and not so good implications for pure random access functions like databases. > Thats > what Im hopeing for. Id really like to be able to do some serious > synthsis while doing hardcore realtime video processing using Gem. > > I can do one or the other with my old laptop... Just not both. Too > many dropouts. You need more processors pure and simple. It's just not a realistic expectation to have two completely separate time intensive and sensitive tasks running on the same physical CPU. Dual CPUs or better yet multiple machines solve your problem today. cgc _______________________________________________ PD-list(a)iem.at mailing list UNSUBSCRIBE and account-management -> http://iem.at/cgi-bin/mailman/listinfo/pd-list

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RE: [PD] 64 bit PD
by ba 07 Sep '04

07 Sep '04

wasn't GCC 3.4 supposed to be able to compile for amd64 or something? i guess the code still has to be written correctly. >===== Original Message From "thewade" <pdman(a)aproximation.org> ===== > Is there any advantage to using pure data on a 64 bit machine (if it > works)? > Or does the 64bit just mean more precise calculations? 64 bit simply means that programs are able to address larger blocks of memory. It may also mean more precise numbering if by default ints are 32 or 64 bits instead of 16, but I think thats a compiler thing, not a hardware thing. char=8bits int=16bits float=32 double=64 (I think) There might in the future be something like write combining where two sets of 32 bit values are combined, as it takes just one cpu cycle to move 64 bits as opposed to two cycles for normal x86 machines. Thats what Im hopeing for. Id really like to be able to do some serious synthsis while doing hardcore realtime video processing using Gem. I can do one or the other with my old laptop... Just not both. Too many dropouts. -thewade _______________________________________________ PD-list(a)iem.at mailing list UNSUBSCRIBE and account-management -> http://iem.at/cgi-bin/mailman/listinfo/pd-list

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Creative ASIO
by Carlos Pita 07 Sep '04

07 Sep '04

Hi! I'm new to pd. I can't get sounds via ASIO -via Portaudio- (Creative ASIO is selected in the combo for output device 1 in audio settings). I have a Soundblaster Audigy; the installed drivers are the ones provided with the card. Everything works fine with standard MMIO selected in the audio settings (I mean, computed audio really sounds). What's the problem? How can I find out if I have ASIO drivers? Does the default drivers from Creative provide ASIO support? And if not, why "Creative ASIO" is listed under input/output devices combos? Note that I'm new to windows audio platform, I usually work on top of ALSA or JACK. Thank you in advance, Carlos.

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Pd-list September 2004