Re: [PD] Rotating object rolling on irregular terrain
Thanks for these very useful pointers Stefano, I did find the earlier Sounding Object toolkit and will try these through Flext. Interesting work that I will follow! Creaking / stick-slip models are also of interest, but I am trying to present these in vanilla Pd for teaching purposes. good wishes, Andy On Mon, 10 Mar 2008 14:25:44 +0100 Stefano Papetti [EMAIL PROTECTED] wrote: Hi all, at that time, Matthias Rath was working on the rolling model in Verona (Vision, Image Processing, and Sound lab, Computer Science Dept.) and was a member in the project Sounding Object (SOb, http://www.soundobject.org/ , there you can find the book collecting the most important results of the project). Unfortunately the software available on-line is not the very updated. However, the current CLOSED project (http://closed.ircam.fr/ ), in which I am a member, is carrying on the development of the everyday-sounds modules. You can find the latest version of the software package (available via svn) here: https://svn.sme-ccppd.org/svn/sobs/SoundDesignTools/tags/SDT-0.4.2c/ Unfortunately, since the coordinator of the project CLOSED is an Ircamian, we were force to switch to Max/MSP, but at the same time we started developing using flext, so you can always compile the externals for pd. The example patches provided are for Max only, though. If you're interested, I can send you the latest pd version (pre-Max) of the rolling patch+externals. Stefano -- Use the source ___ PD-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Rotating object rolling on irregular terrain
Hallo, hard off hat gesagt: // hard off wrote: i just did a simple load test on [sqrt~], which the documentation states is a 'fast, approximate algorithm'... i made: [sig~ 5] | [sqrt~] and copied that dozens of times with only a small jump in cpu usage. is it the cpu usage that's the problem? or something else? Maybe you could also use q8_sqrt~ which is a faster, but not as accurate sqrt~. Ciao -- Frank Barknecht _ __footils.org__ ___ PD-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Rotating object rolling on irregular terrain
Hi all, at that time, Matthias Rath was working on the rolling model in Verona (Vision, Image Processing, and Sound lab, Computer Science Dept.) and was a member in the project Sounding Object (SOb, http://www.soundobject.org/ , there you can find the book collecting the most important results of the project). Unfortunately the software available on-line is not the very updated. However, the current CLOSED project (http://closed.ircam.fr/ ), in which I am a member, is carrying on the development of the everyday-sounds modules. You can find the latest version of the software package (available via svn) here: https://svn.sme-ccppd.org/svn/sobs/SoundDesignTools/tags/SDT-0.4.2c/ Unfortunately, since the coordinator of the project CLOSED is an Ircamian, we were force to switch to Max/MSP, but at the same time we started developing using flext, so you can always compile the externals for pd. The example patches provided are for Max only, though. If you're interested, I can send you the latest pd version (pre-Max) of the rolling patch+externals. Stefano ___ PD-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Rotating object rolling on irregular terrain
i just did a simple load test on [sqrt~], which the documentation states is a 'fast, approximate algorithm'... i made: [sig~ 5] | [sqrt~] and copied that dozens of times with only a small jump in cpu usage. is it the cpu usage that's the problem? or something else? ___ PD-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
[PD] Rotating object rolling on irregular terrain
I'm trying to obtain a waveform for a rolling cylinder on an irregular surface. The signature looks like the attached, or see this paper. https://www.enactivenetwork.org/download.php?id=97 Rath gives a formula that uses a square root, which I want to avoid. Several methods I've tried, based on samplehold and a parabolic shaper almost get there, but I can't quite crack this one. It is the circular motion of the cylinder rotating around the last maxima and truncated by the intersection of the radius with the next minima. I want to generate it from a samplehold noise (step waveform) source in real time, so no look ahead or tables (although delaying by some blocks is okay) I've tried integrating and shaping the step wave, but it's not right :( Now I can't see the wood for the trees and think I'm missing something really obvious. Any geometry experts got an idea? Preferably something only in the signal domain. Cheers, Andy -- Use the source uneven.eps Description: PostScript document ___ PD-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
