Pd-list March 2004

pd-list@lists.iem.at

158 participants
381 discussions

Newbie/non-mathbie question
by KEYES CHRISTOPHER JAY 08 Mar '04

08 Mar '04

Dear higher mathers, I see in /doc/3.audio.examples/33.sampler.oneshot that a message is sent to a line~ object via 'phase' to start at '1'(so far so good) and go to '4.41e+008' in '1e+007' seconds...hmm, for me, not so good. Can anyone shed some light as to what 'numbers' those represent? Are they 'C++' things or a hexadecimal things? Thanks, Clue-less Christopher _____________________________________________________________ Dr. Christopher Keyes, BA Course Coordinator/ Assistant Professor - Department of Music and Fine Arts Hong Kong Baptist University 224 Waterloo Road, Kowloon, Hong Kong Office Phone: (852) 3411-7388 Office Fax: (852) 3411-7870 e-mail: ckeyes(a)hkbu.edu.hk http://www.hkbu.edu.hk/~ckeyes _____________________________________________________________

3 2

Is Pure Data right for my project
by Paul Schrank 08 Mar '04

08 Mar '04

I have been researching software for a project and Pure Data with GEM seemed to be a good fit. I am creating a video installation that will cycle through clips and images and manipulate, layer and change them based on a controlled randomness. I have had problems starting GEM in PD on Mac OS X (help if you can) so I'm not sure if it will suit me. I thought I'd post a wish list and ask if PD can do the following: - Can PD read a folders contents into an array and display clips randomly from the array. I want to change out the clips over time so the array needs to be generated dynamically. - is there a way to analyze beats per minute of an analog sound source (mp3 on the same computer or audio in the back of the computer) in order to change or loop clips to the tempo of the music - Can PD/Gem play Flash (.fla) files as well Thanks. Answers to those three questions will save me a lot of time. Maybe I'm barking up the wrong software tree. -------------------------- Paul Schrank http://www.pgeek.com http://www.psproductions.net

6 6

Hammerfall : setting up latency for Pd
by julien.breval＠tremplin-utc.net 08 Mar '04

08 Mar '04

hello All this happens under Windows XP I discovered there was a slight latency when I use [adc~] with my sound card, and it would be good to reduce it (I currently don't have any performance problems) in the configuration panel of the HDSP card, "Buffer Size (latency)" is 128 samples (3 ms) which command line should I use for launching Pure Data ? the current one is : ============================================================================ pd.exe -r 44100 -inchannels 8 -outchannels 8 -audioindev 2 -audiooutdev 2 - asio -blocksize 128 ============================================================================ Therefore only the pd internal I/O audio buffer size is explicitely specified here, not the sound card I/O audio buffer size 128 is weak for "-blocksize", I should set it to 2 or 4 So maybe this one would be better : ============================================================================ C:\pd\bin\pd.exe -r 44100 -inchannels 8 -outchannels 8 -audioindev 2 - audiooutdev 2 -asio -audiobuf 3 -blocksize 4 ============================================================================ actually, I don't know what the "-asio" flag automatically imply : * does pd automatically choose the ASIO Hammerfall driver ? (and not DirectX, Multimedia or another ASIO or ASIO-compatible driver) ; I think it does, because "-audioindev 2" and "-audiooutdev 2" is the device number of the HDSP on my computer * does pd use a 128-sample audio buffer (or any other size specified in the sound card panel) ---- so "-audiobuf 3" would be useless Thanks for your help, j --

1 0

[vcf~] : Q / output level relationship
by julien.breval＠tremplin-utc.net 08 Mar '04

08 Mar '04

hello I'm using the [vcf~] filter quite a lot these times of course, when you raise the Q factor, as the peak narrows, the volume decreases I would like to set up something automatic that tunes automatically the output volume of vcf~ in function of Q For example, something simple like output_lev = input_lev * k * Q (if Q > 0) where k is a multiplicative factor I don't know about this "k" factor ; I could find it empirically, but isn't there a more serious way of determinating it ? (assuming the input signal is white noise) Also, when Q = 7, for example, what is the bandwidth of the filter ? thanks a lot for your help j --

3 3

pd w/ tcl/tk8.5
by carmen 08 Mar '04

08 Mar '04

pd is extremely fast on windows 2003 with the beta version of tk8.5. not an expert at performance profiling, and not sure which gains are due to compiling with vc7.1 vs 6.0, and which are due to tcl8.5 vs 8.3, but in any case my completely nonscientific test finds the following.. (basic patch, playing 2 sliced audio loops, lighting up a radio button for each slice) 0.37.1 .zip (vc6, tcl/tk 8.3) total cpu: 25% pd 17% wish 3% video 3% same pd+patch, with envgen moving around 5 hsliders: system: 35% pd 20% wish 6% video driver 6% 0.37.1 vc7.1 + tcl/tk 8.5 system: 2% pd 0.25 wish 0.33 video 0.33 w/ the automated sliders, system cpu fluxuates between 2-3% the additional couple percent is taken up by taskinfo (www.iarsn.com) and the system itself, a 1.4ghz athlon. this is using the precompiled tk binaries from activestate.com (click next to skip the email form) in case any windows users dont feel like dl a couple gb of compilers, the 'fast' 0.37.1 bins are at http://whats-your.name/pd/pd-0.37.1-tcl8.5.rar . to avoid the whole windows users needing binaries issue, i think mingw might be the solution, it is a port of GCC designed specifically for win32 apps..tried it but got hung up on some pthreads issues, gave up for now but i think it would be great to have a unified build process on linux, mac osx & windows...

1 0

Impd
by Mathieu Bouchard 08 Mar '04

08 Mar '04

The Impd branch is now available at: cvs checkout -r impd_0_37 pd and features this: * added console for post() * .pdrc: -console <number_of_lines> * added button bar (that does like Ctrl+E & Put menu) * .pdrc: -look <directory_of_icons> * includes a selectable windowid (for those who know how to use it) * class list dialog * scans for loaded classes, abstractions/externs dirs * help button fetches help file without needing to instantiate first * filter box helps finding classes quickly * displays some info on the class, like a list of defined methods and such. Two icon sets are available at: http://artengine.ca/gridflow/download/pd_icons_jmax.tar.gz http://artengine.ca/gridflow/download/pd_icons_orthodox.tar.gz More features will be available at a later time. Some features already hinted about are not ready yet and so not in the CVS... Have fun. ________________________________________________________________ Mathieu Bouchard http://artengine.ca/matju

5 6

pd gui testing
by Mathieu Bouchard 07 Mar '04

07 Mar '04

Hi, if someone wants to contribute something i feel would be important to Pd, it would go like this: Create the most feature-using patch ever. Use every option of every GUI object (bang,toggle,sliders,gop,etc) in the most visual possible way. Then we can visually compare what has changed from one version of Pd to another, and thus spot incompatibilities. Please put most of the stuff in only one patcher, so i can easily make a "screenshot diff" (heh) for most of the visual stuff. Then for the nonvisual stuff (sendsymbols, receivesymbols, etc), use a [loadbang] system that [print] a bunch of values that can easily be checked for correctness. Bonus points if it also is easy to spot where the problem is happening. =) Anyone willing to be my hero? :-) ________________________________________________________________ Mathieu Bouchard http://artengine.ca/matju

1 0

band-limited square wave
by Martin Dupras 07 Mar '04

07 Mar '04

Does anyone know how to generate band-limited square waves (or other classi waeforms) in PD? Thanks. - martin

7 7

lcd+
by roc 07 Mar '04

07 Mar '04

yo is there an LCD object for os X? or something similar,,, i am looking for some object where i can load a picture as the background and then draw on top of it, using different colors, pen widths, etc. tips? cheerio r -------------------- %evol--------http://www.mego.at/evol.html %alku--------http://personal.ilimit.es/principio %imbécil-----http://imbecil.net

3 2

Portaudio not working on WinXP with Echo Mona Laptop
by acabrera＠teleset.com.co 07 Mar '04

07 Mar '04

Hi all, I'm pretty new to pure data, and when selecting the ASIO (portaudio) option in the Media menu, Pure Data crashes with the following error: AplicaciÃ³n con errores: pd.exe, versiÃ³n: 0.0.0.0, mÃ³dulo con error: asioechowdm.dll, versiÃ³n 6.8.0.0, direcciÃ³n de error 0x00001879. It is definetely an incompatibility with my ASIO driver, but what's strange is that it behaves perfectly with CsoundAV, which also uses portaudio. MMIO works fine, but doesn't give me more than four channels and is not usable at low latency. Any ideas? I'm using a Laptop P4 1.6G 512RAM. WindowsXP service pack 1. I have an Echo Mona Laptop interface (driver version 6.08) I have Pure Data version 0.37.0. Thanks in advance, Andres Cabrera

1 0

← Newer
1
...
30
31
32
33
34
35
36
...
39
Older →

Jump to page:

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000

1999

1998

Pd-list March 2004