Pd-list November 2003

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160 participants
289 discussions

converting audio-nujmbers in PD
by Todd Goodenow 13 Nov '03

13 Nov '03

Hi, I want to be able to do a few tasks: 1. take the frequency of an audio in on my DA card and convert it to controller data or any numbers that could controll the frequency of a pd oscillator (freq. tracking) 2. do the same with amplitude 3. use any other data I could ring out of audio to control pd functions (perhaps attack rate, waveform, etc). 4. divide frequency into bands which could seperately trigger and control samples and their frequency/amplitude/etc. basically I would like to use voice as a midi controller, use audio as an interactive sensor, etc. Any ideas for realizing these? thanks, todd __________________________________ Do you Yahoo!? Protect your identity with Yahoo! Mail AddressGuard http://antispam.yahoo.com/whatsnewfree

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Particlechamber: a 32-voice asynchronous granular synthesizer
by derek holzer 13 Nov '03

13 Nov '03

Particlechamber by Derek Holzer [Umatic.nl] Particlechamber is a 32-voice asynchronous granular synthesizer for real-time transformation of a soundfile. It is loosely based on the famous Travelizer instrument from Reaktor 3, however I think it's much better because it is FREE! This abstraction can be used to time-stretch or -compress a soundfile, although there are other tools [such as Frank Barknecht's Synchgrain object] which do this "nicer", but it's main strength is in generating clouds of sonic particles, time-scrambling a file, or creating abstract textures. If one does a bit of reverse engineering, it can also be used as a tool for learning about the techniques of granular synthesis. I have left a subpatch inside the granreader subpatch where others can add their own grain-level events, such as randomized or constant-Q filters or windowed envelopes, to see what is possible with this technique. Of course, I can only highly recommend Curtis Road's amazing book "Microsound" for those interested in learning more. Download Particlechamber here: http://www.pure-data.org/Members/derek/Particlechamber.zip Particlechamber requires a few externals to run. It uses Freeverb~ for its reverb section [although you could easily replace it with another reverb], and uses Grid as a major GUI element [although you could hack your way around it if you can't install Grid by sending numbers directly to the table_locator subpatch. Look inside for details...] It would be best to take Grid from the PD External Repository: http://pure-data.sourceforge.net However, Yves Degoyon's Grid external can also be found here: http://ydegoyon.free.fr/software.html The freeverb~ external can be downloaded here: http://www.akustische-kunst.org/puredata/main.html Operation of Particlechamber: Open the Load subpatch and click the bangs to load samples. It is better to do this before you start playing, because loading soundfiles can cause audible glitches in PD's performance. Sorry... The red buttons mute and unmute the file granulator and the reverb. The large vertical sliders are gain for each section. The reverb is post-fader from the file granulator, and can be bypassed either by muting it or with the wet/dry slider. The envelope is a linear ramp, so a length of 0 means a pure triangular "window" for each grain. [(envelope x 2)+length=average grain length in ms]. Stereo_spread randomly pans each grain to a wider or lesser field. The range feature randomizes each parameter as a percentage plus or minus the given number. Asynch randomizes which grains are passed through, from almost none to all. Vox activates or deactivates each of the 32 voices. Grain_spread makes small adjustments in the read position, which can be used to either add a reverb- or chorus-like effect, or to completely time-smear a file. Jitter makes larger adjustments in the read position, resulting in various degrees of time-scrambling. The XY controller at the bottom determines the read position in the sample. This controller has an interpolation scale, adjustable by the gear-shift on the right. This means that Particlechamber will scan more slowly or quickly through the file depending on the cursor's Y position multiplied by the interpolation factor. Particlechamber is free software and comes without any warrenty that it will do ANYTHING like what I say it will. Enjoy it all the same. ----------------------------------------------------derek(a)umatic.nl

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pure-data.org: one more time 2night
by derek holzer 13 Nov '03

13 Nov '03

so, as you might see from the release of Particlechamber on the website, i managed to hack my way in without a tutorial ;-) my next main concern is much smaller, but still important: the text field which describes each patch in the community patches section gets quite large in the overview of all the patches. people who write semi-long descriptions [maybe like myself] create a lot of eye-clutter in the list there. maybe it would be a good idea to either truncate the desciptions in the list there, or to have a seperate, character-limited "summary" field. thx to all who worked on it so far! it looks and works great on the whole! --d.

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sending notes OSC
by Adrian deCleir 12 Nov '03

12 Nov '03

Hi I know this is a very simple question but I cant find any tutorials to work on , and there's hardly any examples ppl have done that are available, but I manage to send text characters, numbers or whatever to other IP addresses using 'send' in a message box and joining it to sendOSC but how do you send sound, I've a little osc~ set up where I can hear my own sound on my pc but I dont know what the object or message is to send it to another IP address, cheers for the help Adrian

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Re: PD-list digest, Vol 1 #764 - 2 msgs
by Oskar Lissheim-Boëthius 12 Nov '03

12 Nov '03

And I'm sorry for my mistake of not removing the rest of the list in my reply. Yours cincerely, . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > O S K A R L I S S H E I M - B O Ë T H I U S Composer & Webdesigner Kingdom of Sweden Home: http://www.avocade.com/ Cell: +46 (0) 736-525420

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compile errors on linux
by Wade McDaniel 12 Nov '03

12 Nov '03

Does anyone get this error? s_audio_pa.c: In function `pa_listdevs': s_audio_pa.c:248: warning: implicit declaration of function `Pa_GetDefaultInputDevice' s_audio_pa.c:250: warning: implicit declaration of function `Pa_GetDefaultOutputDevice' I renamed portaudio_v18 to portaudio because the install scripts were looking for../portaudio/pablio/pablio_pd.h, or something along thoes lines, and the compile would crash. I got pd-0.37.0-test4 and it built fine, but when I ask it to open a new project it does nothing. I cant quit or anything. Could it be becuase I tried to bypas some tcl/tk memmory problems on linux by using a patched version of tcl/tk I got from the net? Any help? Thanks a bunch! -thewade

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gemwin dimensions and gemmouse
by Martin Dupras 12 Nov '03

12 Nov '03

Is there a way to infer programmatically the size of a gem window if it is resized? I want to use gemmouse to grab the mouse coordinates, but if someone resizes the window, the mouse coordinates no longer relate to the 3D world. Thanks. - martin

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Re: [PD] sending notes OSC
by CK 12 Nov '03

12 Nov '03

I read: > just one more thing, sorry for bothering, but in the end Im actually going > to be streaming midi , ok great, finally I think I have sort of a clue what you want to do, so your options are: netsend - netreceive but you'll have to develop your own mini protocol defining what is what. OSC - just stick an OSC header and receiver to to the beginning of your midi message send it, parse it at the other end route it to the instrument you want et voila > I just thought Id try getting it working with the > osc~ still don't get it I give up, HTH x -- 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: [PD] sending notes OSC
by Adrian deCleir 12 Nov '03

12 Nov '03

just one more thing, sorry for bothering, but in the end Im actually going to be streaming midi , I just thought Id try getting it working with the osc~ do you know of any objects that will help me on my way no? oggcast and them seem to be for actual audio not midi -----Original Message----- From: CK [mailto:x@meta.lo-res.org] Sent: 12 November 2003 15:43 To: 0031259(a)student.ul.ie Subject: Re: [PD] sending notes OSC I read: > do you if it might be able to be done using netsend or anything no? > tabread doesnt seem to work if you really wan't to stream audio you should take a look at the various *mp3*, *ogg*cast, *shout*cast externals but I'm no expert on that. regards, x -- 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: [PD] sending notes OSC
by Adrian deCleir 12 Nov '03

12 Nov '03

do you if it might be able to be done using netsend or anything no? tabread doesnt seem to work cheers anyway adrian -----Original Message----- From: CK [mailto:x@meta.lo-res.org] Sent: 12 November 2003 15:21 To: 0031259(a)student.ul.ie Cc: PD-list(a)iem.at Subject: Re: [PD] sending notes OSC hi adrian, I read: > but I manage to send text characters, numbers or whatever to other IP > addresses using 'send' in a message box and joining it to sendOSC but how do > you send sound, OSC is a control protocol not meant for streaming sound data in a reasonable amount of time (though you could of course use: [tabread] | [pd yourOSCsender] . . (imagine powerpoint internet cloud here) . [pd yourOSCreceiver] | [tabwrite] ) > I've a little osc~ set up where I can hear my own sound on > my pc but I dont know what the object or message is to send it to another IP well in pd you could always look into the pd internal messages docs and clone your patch at the other end but I don't think that's what you want. again: OSC != streaming it was designed as a more versatile, contemporary, typed, urlstyle , physical layer independent midi replacement see: http://www.cnmat.berkeley.edu/OpenSoundControl/ HTH x -- 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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Pd-list November 2003