[PD] Markov chains and probability
Hi, I just read about Markov chains and how they can be applied to selecting pitches using probability. One thing I'm wondering is how we assure that our note selection matches the distribution of probability. Let's say our current note was C4. For the next note: P(D4) = 0.3 P(E5) = 0.2 P(F4) = 0.5 Would we simply generate a random number R (0..1) and say: if R 0.3 then nextNote - D4 elsif R (0.3 + 0.2) then nextNote - E5 else then nextNote - F4 I only ask, because if our random number function wasn't well-distributed, we might actually see higher probabilities for certain notes than we've intended. Simply put, what is the most effective, efficient, and accurate way to select the next state based on a list of note-probability pairs connected to the current state? I'm all right with math, but probability is not one of the areas I'm very strong in. If anyone has a simple way of explaining this, I'd greatly appreciate it. I can see that markov chains could be applied to far more things than pitch (modulation, rhythm, structure, etc.), so I want to get at least a decent grasp on how we implement them reliably before I start going nuts with the idea. -Johnny ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] [PD-announce] soundhack pd max externals
On 08/31/2010 10:44 PM, Tom Erbe wrote: We have just released the first complete version of the SoundHack externals for PD Max. These externals replicate most of the SoundHack plugins and are offered free of charge. Included in this collection are externals for amplitude shaping and distortion (+compand~, +chebyshev~ +decimate~); single-head, multi-head, pitchshifting and granular delays (+delay~, +pitchdelay~, +bubbler~); and the spectral shapers, a set of spectral filters and dynamics processors (+binaural~, +morphfilter~, +spectralcompand~ +spectralgate~). This package is available (free) at http://www.soundhack.com/externs.php As this is the first release, we expect bugs - don't hesitate to write us at support at soundhack.com. These externals were programmed by William Brent, Tom Erbe, Daniel Arias, Bryan Oczkowski and Trevor LeVieux. Big thanks to the UC San Diego Department of Music and the Center for Research in Computing and the Arts for their support. PS - Don't despair - Windows versions are coming... Tom / tom erbe | soundhack | 608 carla way la jolla, ca 92037 / tre at soundhack dot com | http://www.soundhack.com / http://music.ucsd.edu/~tre | http://www.facebook.com/soundhack It's looking like these include implementations of things that share the name of your pay plugins. Will these remain free indefinitely? Or only during testing? -Johnny ___ Pd-announce mailing list pd-annou...@iem.at http://lists.puredata.info/listinfo/pd-announce ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] [ot] sueing the mailing list...
Whether or not the user sent the e-mail to a public or private list is beside the point IMO. One must accept in the very act of sending ANY e-mail that they have risked having this information released to the public. IANAL, but I only think it'd be reasonable he could sue if he could demonstrate that this violation of privacy was intentional or the result of neglect, not the result of his own incompetence and lack of common sense. -Johnny On 08/23/2010 07:20 AM, Pierre Massat wrote: Hi, Are the two messages of any interest to Pd users? If the answer is no, then i don't really see the point in not removing them, although i understand that this would go against the pd-list rules. This thing is i find this list to be extremely helpful and i d be very sad if this threat is credible and the future of pd-list actually endangered. I don't know anything about internet-related laws, though... Pierre 2010/8/23 IEM - network operating center (IOhannes m zmoelnig) n...@iem.at mailto:n...@iem.at hi all, sorry for posting an OT mail to the mainlist, but i really want to have as many opinions as posible on this. i (as list admin) have just received an email by somebody who wants their mail to be removed from the archive: snip Subject: FORMAT NOTICE August, 22 2010 I posted a message on the pd-announce list, being not aware that it was a public list: http://lists.puredata.info/pipermail/pd-announce/ Someone replied to my message, also publicly, on the pd-list list: http://lists.puredata.info/pipermail/pd-list/X Today, I ask you to remove these two messages from your website, because I don't want my name to appear publicly on the web. If they are not removed within 15 days, I will do the necessary to sue you. XXX X /snip i must say, that i'm a bit perplex. while in principal i'm not opposed to removing the post if they have any problems with it, however, i find the tone at least impertinent, and would prefer to not give way to a threat to sue. i have thus answered: answer hold on! i understand that you probably don't want an unsubscribe request to be available in a public archive. however, all the pd-mailinglists have always made it clear, that everything will be archived and made available to the public. thus, by subscribing to one of those mailinglists, you have given your agreement that all your postings to the list will be made available via those archives. furthermore, you are of course free to ask that your posting is removed from the archives. however, if somebody replied to your posting and has made this available to the public, then i don't see what entitles you to request a removal. it is their posting. the pd-lists are an open forum. they are no place to threaten people with sueing. fgmadsr IOhannes /answer what do you think of all this? fgmasdr IOhannes -- IEM - network operation center mailto:n...@iem.at mailto:n...@iem.at ___ Pd-list@iem.at mailto:Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] [PD-announce] pd 0.43 test 2 (first 'real' test version) released
On 08/21/2010 08:16 PM, cyrille henry wrote: Le 22/08/2010 00:10, Hans-Christoph Steiner a écrit : On Sat, 2010-08-21 at 23:48 +0200, cyrille henry wrote: Le 21/08/2010 22:09, IOhannes zmölnig a écrit : On 08/21/2010 04:19 PM, cyrille henry wrote: hello i've got probleme with pd~ when sending a start message, i've got an error : pd~: can't stat /usr/local/lib/pd/pd (pd is install somwhere else.) you should be able to tell [pd~] where Pd really lives with the message: [pd~ pddir /path/to/my/pd( who will tell me where pd really lives? cheers cyrille Only you know, where did you put it? :) There are so many ways to customize it. i did not customize anything. i just did a make install. try whereis pd or whereis pdextended :) -Johnny cyrille .hc ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] selecting 1 output signal from multiple input signals
On 08/20/2010 02:00 AM, Jonathan Wilkes wrote: --- On Fri, 8/20/10, Johnny Fergusonhyperfle...@gmail.com wrote: From: Johnny Fergusonhyperfle...@gmail.com Subject: [PD] selecting 1 output signal from multiple input signals To: pd-list@iem.at Date: Friday, August 20, 2010, 5:37 AM Is there an external object that will do what I'm looking for? I am creating an ADSR object, and I need to route one [line~] object for each phase of the envelope to [r~ $0-envelope] Is there a reason you can't just use one [line~] object and a [delay] to time the messages accordingly? ...actually, that does sound a hell of a lot more elegant. I've found out that I can't have more than one [s~ $0-envelope] which makes sense as audio rate objects have constant output and would reset eachother, or explode (I'm not sure which). So what I'm looking for would essentially be an audio rate multiplexer. I could roll my own, but I hate to reinvent the wheel. I thought there might be something like [gate~], but didn't find anything. Still looking for this though, I could see it being handy in the future. -Johnny ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
[PD] selecting 1 output signal from multiple input signals
Is there an external object that will do what I'm looking for? I am creating an ADSR object, and I need to route one [line~] object for each phase of the envelope to [r~ $0-envelope] I've found out that I can't have more than one [s~ $0-envelope] which makes sense as audio rate objects have constant output and would reset eachother, or explode (I'm not sure which). So what I'm looking for would essentially be an audio rate multiplexer. I could roll my own, but I hate to reinvent the wheel. I thought there might be something like [gate~], but didn't find anything. -Johnny ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] object that only outputs list when it changes?
On 08/17/2010 01:13 AM, Mathieu Bouchard wrote: On Tue, 17 Aug 2010, Johnny Ferguson wrote: Awesome external. I've coded up an abstraction to filter out repeated lists. See attached. What are you trying to achieve using [moses] and the two messageboxes ? I don't understand. _ _ __ ___ _ _ _ ... | Mathieu Bouchard, Montréal, Québec. téléphone: +1.514.383.3801 when [list.==] puts out a 1, I want the spigot to close (avoid duplicates). When [list.==] puts out a 0 I want the spigot to open (the list has changed). I tried looking for a NOT object, but couldn't find one. Moses and the 2 message boxes are as close as I can get. -Johnny ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] object that only outputs list when it changes?
On 08/17/2010 10:08 AM, Mathieu Bouchard wrote: On Tue, 17 Aug 2010, Johnny Ferguson wrote: when [list.==] puts out a 1, I want the spigot to close (avoid duplicates). When [list.==] puts out a 0 I want the spigot to open (the list has changed). ah sorry... I didn't think about it long enough... I tried looking for a NOT object, but couldn't find one. [==] is a NOT object. That is, it's [== 0], as 0==0 gives 1, and as 1==0 gives 0. Moses and the 2 message boxes are as close as I can get. With GridFlow, there is also [shunt], which is like [spigot] but has two outlets (or any number of outlets). You can use that to make a [spigot] and negation in a single box. (it's nearly the same as what is called [demux] in other libraries). Just a quick question on gridflow. Is it possible to install help files or something (so I can right click gridflow objects for help)? I had the doc folder after compiling from source, but I wasn't sure where to put it. _ _ __ ___ _ _ _ ... | Mathieu Bouchard, Montréal, Québec. téléphone: +1.514.383.3801 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
[PD] 0.42.5-extended-rc5, entering number values with keyboard
Hi, I've seen in many pd guides that it is possible to use the keyboard to enter values into number and symbol atoms. I've tried clicking, double-clicking, and I can't seem to enter values with my keyboard. It's very difficult to use the mouse to reach certain values, and I've had to resort to using temporary message boxes to quickly set values. I'm using 0.42.5-extended-rc5 (amd64 for Ubuntu Lucid) from the autobuild archives, and I'm wondering if the issue is restricted to this version only. -Johnny ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] 0.42.5-extended-rc5, entering number values with keyboard
On 08/16/2010 05:05 AM, IOhannes m zmoelnig wrote: On 2010-08-16 10:44, Johnny Ferguson wrote: Hi, I've seen in many pd guides that it is possible to use the keyboard to enter values into number and symbol atoms. I've tried clicking, double-clicking, and I can't seem to enter values with my keyboard. try again: - click on the numberbox - type the number - hit return - voila note that you won't get any visible feedback that you are in typing mode! so: - click on the numberbox - notice that nothing has changed - type the number - notice that the numbers appear in the numberbox as you type them - hit return - notice that the number will be sent out if you miss the hit return part, then you won't have get any effect. Awesome, working now. My mistake was being in edit mode when I tried. Locking the patcher seems to allow it to work as specified. Thanks! :) fgmar IOhannes ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] make me
On 08/16/2010 11:40 AM, patrick wrote: yes pix_opencv, thx for that by the way! of course, if you want you can link the video, i can share the patch too, but it's really a clone of your example (also the patch have network stuff for the voice recognition). it works well for 2d positioning, but for 3d i didn't found an open source solution, so i am using facetracker - pd - blender: http://www.vimeo.com/563 if anyone know an open source solution... also sorry for everyone who likes mel gibson :) I would have used Tom Cruise for stupid, but cool program. pat ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
[PD] object that only outputs list when it changes?
I'm wondering if anyone knows of an object that will only pass on a list if it changes. I'm sure I could whip something up, but I'd rather not if it exists. -Johnny ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] FM Synthese in Pure Data
On 08/16/2010 05:57 PM, hghoyer wrote: Hi, I try to understand the FM synthesis with Pure Data. A simple FM synthesis is understandable.But what about a more complex FM synthesis? I once created a simple patch. Can someone tell me if that is really FM synthesis? Or I do something wrong? Dear .hg That's definitely FM synthesis, and very cool :) I wasn't quite sure what did what, but it sounded cool. FM is just having the amplitude of one wave modulating the frequency of another. You seem to have that. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] object that only outputs list when it changes?
On 08/16/2010 10:36 PM, Mathieu Bouchard wrote: On Mon, 16 Aug 2010, Johnny Ferguson wrote: I'm wondering if anyone knows of an object that will only pass on a list if it changes. I'm sure I could whip something up, but I'd rather not if it exists. [t a a] | | | [list.==] | | [spigot] using [list.==] from GridFlow™. Awesome external. I've coded up an abstraction to filter out repeated lists. See attached. -Johnny _ _ __ ___ _ _ _ ... | Mathieu Bouchard, Montréal, Québec. téléphone: +1.514.383.3801 #N canvas 1 49 450 300 10; #X obj 163 51 t a a; #X obj 190 92 list.==; #X obj 163 193 spigot; #X obj 190 125 moses 1; #X msg 190 149 1; #X msg 229 149 0; #X obj 182 229 s \$0-listLoop; #X obj 229 55 r \$0-listLoop; #X obj 163 264 outlet; #X obj 163 15 inlet; #X text 248 91 -- requires gridflow externals; #X text 100 -11 only passes out an input list if it changes; #X connect 0 0 2 0; #X connect 0 1 1 0; #X connect 1 0 3 0; #X connect 2 0 6 0; #X connect 2 0 8 0; #X connect 3 0 4 0; #X connect 3 1 5 0; #X connect 4 0 2 1; #X connect 5 0 2 1; #X connect 7 0 1 1; #X connect 9 0 0 0; ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
