Pd-list August 2014

pd-list@lists.iem.at

60 participants
71 discussions

Unity3d and pd vanilla
by Pagano, Patrick 14 Aug '14

14 Aug '14

Hello I am working on a simple game project for a child's museum that has a delivery date of October 30, so i have a little time to play around a bit and i was considering using libpd with Unity3D for the audio portion of the game. The game is a Egyptian game so i need a sample to run as soon as the game starts with some Egyptian music playing. The game players will be tracked with Kinect and at one point Kick Snakes for points [Kicking Asps] and i need there to be a sample fired off each time a snake is successfully kicked. So really two samples need to be fired off from Unity to libpd. The pd portion i have no problem creating but i am wondering if anyone on list has a Unity example they would be willing to share that Pd receives a bang from Unity3D? The online example from Patrick Sebastien seems to be this hard-coded midi note patch that randomizes an osc and it's very confusing as i cannot figure out where the data is being exchanged. Any help would be greatly appreciated and i will of course credit you in the game credits thank you Patrick Patrick Pagano B.S, M.F.A Audio and Projection Design Faculty Digital Worlds Institute University of Florida, USA (352)294-2020

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plotting freq response of [cpole~] (or "vcf")
by Alexandre Torres Porres 13 Aug '14

13 Aug '14

Hi there, I have a patch based on mmb's work [filterplot.mmb]. It plots frequency response from biquad coefficients. I have it attached, as a default, it is plotting the freq response of a bandpass filter. So, I've been meaning to get the freq response of [vcf~] for a while now and I have the intuition that this patch may be adapted for that. [By the way, [vcf~] is basically a [cpole~] filter with the right coefficients and gain adjustment. The heart of this freq response patch is the subpatch that deals with the Z-Transform (that's what I believe anyway). In this case, it originally deals with the Z-transform of the biquad filter, but I believe that if we change it to cpole's tranfer function it'll work to plot vcf's frequency response. Right? Did I nail it? Well, if so... I've recently succeeded in getting the vcf's coefficients and gain to use them with [cpole~]. If you want you can check my patch attached. I'm generating the cpole's coeficients and everything, but the plotting subpatch still needs biquad coeficients to work. All that'd be missing is adapting the formula for the transfer function to cpole's. cpole's help file says that its Transfer Function is: H(Z) = 1/(1 - aZ^-1)... so it doesn't seem even hard to do it so. Unfortunately I'm just a geeky musician with no math background and needed help getting down to it. I tried some stuff in the dark and failed. thanks Alex

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pd, csound, fluidsynth -- and is this unnecessarily cumbersome?
by forrest curo 12 Aug '14

12 Aug '14

Mainly I want to use the computer (pc running linux) as a musical instrument -- ie construct ways to input notes, changing volumes, timbres ect in real time, eventually have a system set up to run a sequence back with variations, different instruments, etc. while I play along with some other voice... Soundfonts & fluidsynth work very well for producing basically ear-friendly sounds... Pd looks ideal for handling HID input, keeping track of incoming notes, doing interesting things with these. But to connect these two things I've been using csoundapi~ and fluidsynth opcodes. As I understand this, pd is running a copy of csound in a sort of virtual box? Anyway, it gets tricky to hit the same note, same channel in close succession, because the repetition going through the fluidengine cuts the first note off -- and in any case that first note is not available for separate processing until it comes out through the fluidOut opcode, mushed together with everything else sent to that fluidengine. Running multiple fluidengines in csound is quite doable, but starts slowing the system down after the first two or three... But basically, all I'm getting from the csound and the fluidengine is this Rube-Goldberg arrangement for playing from a pleasant set of sound-samples. Reading audio arrays -- something pd should do on it's own perfectly well... Suggestions for finding samples in an sf2 file, putting it into a pd array, and thus playing it more directly? Forrest Curo San Diego US

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Re: [PD] Sequencing characters?
by Jérôme Abel 11 Aug '14

11 Aug '14

In attachment, you've got two solutions with [moonlib/drpchar], [list-abs/list-drip], [list-abs/list-dripslow]. Best j. (http://jeromeabel.net)

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arrays in GOP abstraction, show up in parent patch
by Jaime E Oliver 11 Aug '14

11 Aug '14

Hi all, The title says it all, I have some arrays in abstractions and any new value input into the array is also graphed in the parent patch. This happens in OS X 10.8.5 w/latest pd. It does not happen with 0.42-5. testing patch attached. best, J

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Android latency status?
by Filippo Beck Peccoz 09 Aug '14

09 Aug '14

Dear list, I'm in the process of starting another PD based project, but was wondering if the latency on Android devices is still terrible compared to any other platform? I've seen this list and the numbers are staggering… is there really no solution at all to this problem? Anything that need to be closer synced is basically impossible with that kind of latency :Z Not whining of course, just curious as to why this is still a problem on Android. Best, Filippo Filippo Beck Peccoz - FBP Game Audio Production www.fbpsound.com Studio: +49 (0)89-80033204 Fax: +49(0)89-99752164 Mobile: +49-(0)1520-4004143 Skype: fbpsound

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Hiding Menu when using Gem on primary display in OSX 10.8
by jim 08 Aug '14

08 Aug '14

I have tried searching for an answer to my problem but no luck. I am using Gem on my primary display and can't seem to hide the menu on OSX 10.8 . I have tried sending menubar 0/-1 messages and border 0 messages but no luck. I found something about using the Property List Editor.app to edit info.plist for PDExtended but OSX 10.8 doesn't have this app.Does anyone have a solution other than adding a second display? Thanks, Jim

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Dynamic pitch-shifting performance/recording(s) with Pd
by Maurice Rickard 08 Aug '14

08 Aug '14

Hi everyone, A few weeks ago I did a temporary installation with Pd at the second International Conference on Deep Listening at RPI in Troy NY. The piece involved two microphones going into a Pd patch I've been constructing/tweaking for a bit over a year, in which inputs go to multiple ring modulators and then to multiple pitch shifters, then to two delays and multiple outputs. In this case, it was six ring mods and six pitch shifters, two delays, and four outputs. All of the parameters (ring mod carrier frequency, % ring mod, pitch shift target, window size, pre-delay, post-delay send, panning in quad, post-delay time/regen/return) were randomized within ranges, and the times between random updates were themselves randomized for each parameter. I set up in a hallway so people would have to walk through it, and I'd invited people to make sounds, which worked well--people played with it, singing, clapping hands, using pocket ocarinas...maybe the most surprising sound was from percussionist and educator Leaf Miller, who tore a sheet of paper in front of the microphone--that was a great sound. One problem with the hallway, though was fighting the standing wave feedback; I'd put in a notch filter to deal with the root frequency. But that got me thinking, since I'd had a performance coming up, that instead of fighting feedback, I'd embrace it the next time I'd use the patch. These are recordings from this performance, in which the sound source was feedback from the PA I was performing through. I used two mics, waving one them around in front of the PA while manipulating the mic gain, overall maximum update time, stopping some random updates, sometimes selecting static preset values. I set up a lot of line objects for changing values, so generally the transitions were smooth, but they could happen quickly, particularly with the low max-time-to-next-update values. The performance is here: http://snwv.bandcamp.com/album/live-at-the-garfield-artworks-july-27-2014 But I also like a version that's slowed down to 1/4-speed (and dropped two octaves): http://snwv.bandcamp.com/album/july-27-2014-1-4-speed Enjoy. Maurice Rickard http://mauricerickard.com | http://onezeromusic.com | http://snwv.bandcamp.com

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Re: [PD] comments with trailing | ?
by Dan Wilcox 07 Aug '14

07 Aug '14

Ah I see. It works fine for building, but not necessarily for rebuilding. Well, that should be an easy fix since what you describe works fine for me in my own autotools projects. I can;t say what it is off the top of my head though and I'm out of town for the next month before I could look at it :D On Aug 6, 2014, at 10:26 PM, pd-list-request(a)lists.iem.at wrote: > So I don't get an updated binary in the src/ directory with "make", and I do get an updated binary when doing "make && make clean". -------- Dan Wilcox @danomatika danomatika.com robotcowboy.com

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Re: [PD] comments with trailing | ?
by Dan Wilcox 07 Aug '14

07 Aug '14

I too also wonder why people have problems with the configure script. It works great and allows you to install pd on Linux easily. On Aug 6, 2014, at 1:19 PM, pd-list-request(a)lists.iem.at wrote: > From: IOhannes m zmölnig <zmoelnig(a)iem.at> > Subject: Re: [PD] comments with trailing | ? > Date: August 6, 2014 at 11:08:21 AM CDT > To: pd-list(a)iem.at > > > On 01/31/2014 09:47 PM, Jonathan Wilkes wrote: >> >> Btw-- I haven't tested this. I'd be a lot more likely to try out code >> on Pd Vanilla 0.45 if someone could explain to me how to do incremental >> builds. If I change a single line in g_text.c in 0.43 it only requires >> a single "make" that takes about 3 seconds. Doing the same in 0.45 >> requires "make clean && make", unnecessarily rebuilding all of Pd. > > why? > >> Doing "make" in the src directory of 0.45 only rebuilds the things that >> need to recompile, but it doesn't update the binary, which makes it >> useless. > > how come? > > it works fine here, and the binary is updated immediately. > > but, then i don't know which "binary" you are talking about. > the actual "pd" binary produced by the autotools, will live in > ".../src/pd" (as opposed to .../bin/pd produced by the "traditional" > makefile), maybe you just checked the wrong one? > > i'm very much in favour of the autotools, as they make the build-system > standards conformant. e.g. it's simple to inject *additional* FLAGS > (e.g. for security builds). that's whey it is used for the Debian packages. > > > gfmdsar > IOhannes -------- Dan Wilcox @danomatika danomatika.com robotcowboy.com

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Pd-list August 2014