Pd-list June 2008

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124 participants
197 discussions

Fwd: Play a soundfile reverse
by Ricardo Dueñas Parada 23 Jun '08

23 Jun '08

Thanks Andy, what do you mean with not very long? I am working with 4 channels, so I chose writesf~ + soundfiler + tabread4~ and everything is working fine. _Ricardo 2008/6/18 Andy Farnell <padawan12(a)obiwannabe.co.uk>: > > Hi Ricardo, > > Provided the file is not very long you can read it into an array > using the [tabwrite~] object, then read it back in reverse with > [tabread4~]. Audio help examples B03 and B07 should help you > with this. If the phasor (or maybe better to use a [vline~]) is > reversed the sound will play backwards. > > > On Wed, 18 Jun 2008 22:55:53 -0500 > "Ricardo Dueñas Parada" <rduenasp(a)gmail.com> wrote: > > > Hello list, > > > > do you know some way to read a soundfile (.wav, 2 channels) from the end > to > > the > > beggining without convert the file? > > > > I'm trying to make a "mirror". I write any sound (variable longitude) to > a > > wav file, and > > when a stop the recording, it must be played reverse. > > > > Any help will be appreciated. Thanks. > > > > _Ricardo > > > > > -- > Use the source > > _______________________________________________ > Pd-list(a)iem.at mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list >

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sssad and polywavesynth
by Luigi Rensinghoff 22 Jun '08

22 Jun '08

Dear List If someone also uses the great "Polywavesynth".....well i have a little weird problem.. I would like to use two of them in one patch and store and recall presets for each of them.. lets say poly1 and poly2... i create sssad_panel poly1 and poly2 but if i save a preset from poly1 it also catches the values from poly2 so.....they are not 100% independent from each other.. It might be a bit complicated to unterstand...but the same probably happens with anything that is stored with sssad What am i doing wrong Thanks Luigi >---------------------------------------< Luigi Rensinghoff luigi.rensinghoff(a)freenet.de skype:gigischinke ichat:gigicarlo

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JACK error: client linked with incompatible libjack version.
by Rich E 22 Jun '08

22 Jun '08

In an ongoing attempt to find the root of my audio problems when using a firewire soundcard with jack/freebob, I just installed the latest stable version of jack (0.109.2), and I am now coming up with this error when using the latest autobuild of pd-extended: error: JACK error: client linked with incompatible libjack version. Does this mean that I have to use the jack that comes packaged in Debian/ubuntu, the 6-month old 0.102 version? If so, that is a bummer, since svn Ardour requires a version of jack newer than that.. regards, Rich

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[PD-announce] pure:dyne miso!
by propaganda＠goto10.org 22 Jun '08

22 Jun '08

Hey! We're happy to announce that the 1st milestone of the new pure:dyne has been reached: pure:dyne miso :) https://devel.goto10.org/puredyne/wiki/GetPureDyne -- Project News We are still working hard on packaging more software, porting features from the previous system and also adding new ones! As a matter of fact, we'll be having our second code sprint this week to start developing the next milestone: leek & potato. https://devel.goto10.org/puredyne/roadmap -- Feedback and Review Feedback on miso is very important at this stage and, as you can see in the issue tracker (https://devel.goto10.org/puredyne/report/1), we are already aware of a certain number of things to fix ;) We also have started working on a whole new documentation and If you want to help us fix and improve pure:dyne, make sure you read our little guideline :) -> https://devel.goto10.org/puredyne/wiki/DocTicket -- Join the project! We are always happy to welcome new people willing to contribute on the documentation, software packaging and the Live system. Contact us at puredyne-team(a)goto10.org ! -- Free/Libre/Open Source Soup of the day: Miso * 25 ml miso paste * 10 g wakame (dried seaweed) * 140 g soft tofu or extra firm silken tofu * 500 ml vegetarian dashi (seaweed stock) * 2 spring onions 1. Heat at high heat the dashi in a large saucepan or pot 2. Place the seaweed into a small bowl with water. Wait a bit so it get soaked all right. 3. Melt the miso in a cup with a little bit of dashi from the pot. When it's melted, pour it in the pot and stir. 4. Cut the tofu into into small (but not too small) cubes. Add them in the pot and turn the heat down (it must stop boiling) 5. Add the wakame in the pot to the pan. 6. Serve the miso soup in bowls. 7. Chop up the spring onions and garnish the bowls. 8. Serve while booting pure:dyne -- :* _______________________________________________ Pd-announce mailing list Pd-announce(a)iem.at http://lists.puredata.info/listinfo/pd-announce

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Re: [PD] [PD-dev] What goes on during dsp ticks?
by PSPunch 22 Jun '08

22 Jun '08

Thomas, Thanks a lot! Wow, yes that seems to be the case. Now having some mysteries solved, I can go get some sleep in comfort. Seriously, you might have just saved my life :) While you are there, can you please tell me just a bit more? So, I've made a cache to copy the original signal to before processing. Because the block size may change anytime, I am malloc & freeing a cache the size of the block on each DSP cycle. I hear that malloc is a "relatively" expensive task. Is it bad practice to run this each cycle, or is a kilobyte or two not a bid deal? -- David Shimamoto > Hi David, > > Am 14.06.2008 um 03:08 schrieb PSPunch: >> >> >> ===================== >> == PROCESS BLOCK.2 == >> ===================== >> >> while (n--) { >> // *out++ = *in++; >> } >> >> >> Remarks: Action is commented out but signal goes through.. Why? >> > > that's because in and out can point to the same memory... signal vectors > are reused in PD for cache-friendlyness. > >> >> ===================== >> == PROCESS BLOCK.4 == >> ===================== >> >> n--; >> *out++ = 0; >> while (n--) { >> *out++ = *in++; >> } >> >> >> Remarks: Expecting first sample of the block to be zero and others >> delayed by 1 sample. Instead, I get an constant output of zero. > > As above... you have to be aware that when you are writing to the > output, you change the input. > Either cache the input or use a different algorithm (in this case start > from the end) > > gr~~~ >

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[PD-announce] pd + arduino workshop, budapest
by stc 21 Jun '08

21 Jun '08

sorry for the delay, yet in hungarian. one day workshop, sensors, arduino, and pd using Hans' pduino http://kitchenbudapest.hu/en/node/460 _______________________________________________ Pd-announce mailing list Pd-announce(a)iem.at http://lists.puredata.info/listinfo/pd-announce

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get sample length for setting array size
by smilingmolecule 21 Jun '08

21 Jun '08

hallo together, i am trying to build a simple sample/loop player in pd. i am using [read] [soundfiler][tabread] and so on. everything works fine, only the samples are cutted when i play them. i think the reason is that the wav file does not fit into the array. is there a way to set the array size automatically? for example with the help of [soundfile_info]? or maybe someone has a link to a patch with a good sample player, with options to loop, pitch and play on bang (for my sequencer patch). thanks /robert

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[PD-announce] workshop: build instruments with Pd, game controllers and arduino
by Hans-Christoph Steiner 21 Jun '08

21 Jun '08

I am giving this workshop at Hangar in Barcelona in a week and some. There is a cap of 15 people to keep it workable, but there are still a couple spots open. http://www.hangar.org/drupal/?q=content/workshop-hans-christoph-steiner 30 of june 2008 - 4 of july 17h-21h (possibility of working in the space the whole day if needed) participation : 20 euros inscription : activitats(a)hangar.org (with letter of motivation) This workshop will focus on building instruments using Pd with Arduino and game-controllers to control sound, video, and graphics in real time. It will cover getting data into Pd, turning that data into a usable form, then mapping the data to build engaging interactions and interesting performances. Participants will learn how to get data from the real world, process the data to eliminate noise and ignore unimportant details, then create a data flow that gives interesting control over media. If time permits, force and vibration feedback will be introduced. The workshop is for beginners as well as experienced users, but some experience with Pd is strongly encouraged. Bring in game controllers, tablets, mice, etc. or an Arduino with sensors. You can use your own laptop, the workshop will be preceded with a short installation help session. This course will prepare you for further work in audio, video, graphics or electronics. It will be project based, so bring a project idea to work on. By the end of the workshop, you should have something that works. .hc ------------------------------------------------------------------------ ---- News is what people want to keep hidden and everything else is publicity. - Bill Moyers _______________________________________________ Pd-announce mailing list Pd-announce(a)iem.at http://lists.puredata.info/listinfo/pd-announce

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Teaching Pd to Children
by Kyle Klipowicz 21 Jun '08

21 Jun '08

Hello Listers~ I'm teaching a 1 month Summer school session for K-8 grade students and would like to include Pd for a mathematics learning tool. I am wondering if anyone else has done something similar, or has any links to DSP/math related materials that would be suitable for this age group. Also, if anyone is sharing their lesson plans for Pd beginners, I would love to see something that I might be able to adapt for my students. Any ideas would be greatly appreciated, as kids often hate Summer school and I want to make this a fun activity for them. ~Kyle -- ----- ------------ ---- ----- ---- -------- - ------ http://perhapsidid.wordpress.com http://myspace.com/kyleklipowicz

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bug in gop data-structs?
by Rich E 20 Jun '08

20 Jun '08

Hi all, I'm just checking to see if this is in fact a bug, or I am doing something wrong with GOP data structs. The attached patch draws bars that symbolize 2 measures, with 4 sub divisions each. The problem is, when I minimize the patch and bring it back up, they disappear... seems like a bug to me, and I'll file a report if it is. regards, Rich

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Pd-list June 2008