Been super-helpful Cyrille thank you, really appreciate it. Cheers,
J On 11 March 2013 16:02, Cyrille Henry <c...@chnry.net> wrote: > > > Le 11/03/2013 16:58, Julian Brooks a écrit : > > Hi again, >> >> "use link rigidity (K) in order to make the 2 masses to bounce one on the >> other." >> >> I was under the impression that you had to use interactors so that the >> masses would bounce off each other (obviously not!) >> >> How would I do that with links (K), is it in an example patch? >> > it's with the interactor, but interactor can do lot's of stuff, and it's a > bit messy. > it can renerate a constant force when you enter in the interactor field > (what you are using), or it can generatea force proportional to the > distance to the interactor border. So it interact the same way as a link. > > > >> Main problem atm is that I like the sound of the patch on my laptop, even >> with the technical mistakes, and it just doesn't sound so good on the Pi:( >> >> I did have GEM for visualisation but that all got ripped out a while ago >> knowing I would be hopefully porting to the Pi so it's now very hard to >> know what's happening - back to the drawing board. >> > yep, i understand the problem, i can't help more. > cheers > c > > >> Jb >> >> >> On 11 March 2013 14:48, Cyrille Henry <c...@chnry.net >> <mailto:c...@chnry.net>> >> wrote: >> >> >> >> Le 11/03/2013 14:48, Julian Brooks a écrit : >> >> Still getting occasional explosions with D & D2 at 32 & 8 >> respectively. K for both links is now 15. >> >> If anyone has further suggestions please let me know. >> >> i did find some strange things in your patch. >> there is a iCircle while most masses use iSphere, i think they should >> all use the same interactor in order to have a symetrical interaction. >> >> also, interactor create force, i would better use link rigidity (K) >> in order to make the 2 masses to bounce one on the other. >> >> >> >> >> I'm really very curious, Cyrille, what you mean by 'accuracy can >> be the answer'? >> >> well, i wanted to point ou that the accuracy of the math is important. >> >> if you do abstraction that mimic mass/link, you can do physical model >> without pmpd. But it has been proven that it's not as accurate as >> externals. And this accuracy can create instabilities in some situation >> (specially when the system is close to an instable point). >> >> i have no idea why math should be less accurate on the Rpi, but that >> could be the answer on why your patch was working on a laptop, and not on >> the Pi. >> >> cheers >> c >> >> >> I'm very aware that I've made all the settings 'by ear' so to >> speak, so I'm not follwing any formulas here. >> >> Cheers, >> >> Julian >> >> On 11 March 2013 12:47, Julian Brooks <jbee...@gmail.com <mailto: >> jbee...@gmail.com> <mailto:jbee...@gmail.com <mailto:jbee...@gmail.com>>> >> wrote: >> >> Hey Cyrille, >> >> Many thanks for testing. >> >> Good to know pmpd is working on the pi. >> >> Thanks for the spot about the link being set too high (D2), >> I have set it to 15 as per your recommendation. >> >> I'm now experimenting with D and D2 to try and get a similar >> soundworld as per my original patch. Still getting occasional >> blow-ups/distortion for no apparent reason but at least something is >> happening, which is so much better than what I had before. >> >> Interestingly it makes absolutely no difference to the >> resultant sound whether Pd on the Pi is running via vnc and in gui mode or >> straight from command line with -nogui. >> >> Progress though. Hurrah. >> >> Will report back with further progress. >> (if anyone has an inclination to check the patch and offer >> advice/assistance/__**recommendations I would be hugely grateful) >> >> Very best wishes, >> >> Julian >> >> >> >> >> >> On 11 March 2013 11:23, Cyrille Henry <c...@chnry.net <mailto: >> c...@chnry.net> <mailto:c...@chnry.net <mailto:c...@chnry.net>>> wrote: >> >> hello, >> >> so, i've test your patch on my laptop : it work. >> i compile pmpd on the rpi, test your patch and it don't >> run. >> so i can confirm the problem, sending you pmpd binary >> will not help >> >> basic pmpd example works on the Rpi. it's hard to fully >> test because most examples need Gem. >> >> On the Rpi, the pmpd part of your patch did became >> unstable. i can see the same behaviors on my laptop if I increase D2 a bit >> to much. >> So, your patch is quite sensitive, and easily became >> unstable. >> It look like the pi math is not accurate enough to keep >> your patch stable. >> when removing few masses, and playing with parameters, i >> was able to get back to a stable situation. >> >> in fact, changing in btch_link_2 rigidity of the link >> from 125 to 15 is enough to get the patch stable again. (after waiting for >> few second). >> btw, i did not understand how a link with 125 rigidity >> connect to mass weight 100 can not be instable. >> >> >> So although pmpd did not work the same way on my laptop >> and on the Rpi, i was not able to spot a problem on the Rpi. >> >> Accuracy can be the answer. >> I'll be glad to here from peoples that know more than me >> on this topic. >> >> cheers >> c >> >> >> >> >> >> Le 11/03/2013 10:31, Julian Brooks a écrit : >> >> Bugger- sorry. >> >> Attached now >> >> BTW - Please be very careful with the audio level if >> testing on RPi. It's very loud! >> >> Julian >> >> On 11 March 2013 09:23, Cyrille Henry >> <c...@chnry.net<mailto: >> c...@chnry.net> <mailto:c...@chnry.net <mailto:c...@chnry.net>> <mailto: >> c...@chnry.net <mailto:c...@chnry.net> <mailto:c...@chnry.net <mailto: >> c...@chnry.net>>>> wrote: >> >> the vanilla-urn is missing. >> >> Le 11/03/2013 10:18, Julian Brooks a écrit : >> >> Hi Cyrille, >> >> Many thanks for assistance... >> >> The simplest solution I think is for me to >> send you the whole patch. >> >> A simple example of my problem: >> >> Main patch is: >> '1.BitChime_pd-list.pd' >> >> On my laptop the output going to [s mass1] >> from within [btch_mass01_sph 0 1 0] in [pd mass_n_link] is between 0-1. >> >> On the RPi the same output is between >> 1-10000. >> >> Obviously this has some severe effects on >> the volume as the pmpd collisions are driving the audio. >> >> Apart from pmpd the patch is vanilla. >> >> If anyone else can confirm the same >> behaviour it would be appreciated. >> >> (Hey Antoine, just spotted your post, >> thanks for weighing in) >> >> Best wishes, >> >> Julian >> >> >> >> >> >> On 10 March 2013 19:22, Cyrille Henry < >> c...@chnry.net <mailto:c...@chnry.net> <mailto:c...@chnry.net <mailto: >> c...@chnry.net>> <mailto:c...@chnry.net <mailto:c...@chnry.net> <mailto: >> c...@chnry.net <mailto:c...@chnry.net>>> <mailto:c...@chnry.net <mailto: >> c...@chnry.net> <mailto:c...@chnry.net <mailto:c...@chnry.net>> <mailto: >> c...@chnry.net <mailto:c...@chnry.net> <mailto:c...@chnry.net <mailto: >> c...@chnry.net>>>>> wrote: >> >> >> >> Le 10/03/2013 20:12, Julian Brooks a >> écrit : >> >> Hi all, >> >> Does anyone have a copy of the >> most recent PMPD compiled for the RPi that they can forward to me please? >> >> I'm having a few issues with a >> patch that works fine on my laptop but is badly borked on the RPi and I >> think I've narrowed it down to the PMPD lib that I've compiled. >> >> The version I've compiled seems to >> have built but it's not working correctly. >> >> >> i dit not compile pmpd but i could if >> needed. But i don't think that i will make any diference. >> could you explain the problem that i >> can test here? >> >> cheers >> c >> >> >> >> >> >> The patch runs at about 50% on the RPi >> (10% on my laptop) so I'm hoping that should be ok. >> >> >> Will report back after further >> testing. >> >> Many thanks in advance, >> >> Julian >> >> >> ______________________________** >> _________________________ >> Pd-list@iem.at <mailto:Pd-list@iem.at> <mailto:Pd-list@iem.at<mailto: >> Pd-list@iem.at>> <mailto:Pd-list@iem.at <mailto:Pd-list@iem.at> <mailto: >> Pd-list@iem.at <mailto:Pd-list@iem.at>>> <mailto:Pd-list@iem.at <mailto: >> Pd-list@iem.at> <mailto:Pd-list@iem.at <mailto:Pd-list@iem.at>> <mailto: >> Pd-list@iem.at <mailto:Pd-list@iem.at> <mailto:Pd-list@iem.at <mailto: >> Pd-list@iem.at>>>> mailing list >> UNSUBSCRIBE and account-management >> -> >> http://lists.puredata.info/___**_____listinfo/pd-list<http://lists.puredata.info/________listinfo/pd-list>< >> http://lists.puredata.info/__**____listinfo/pd-list<http://lists.puredata.info/______listinfo/pd-list>> >> <http://lists.puredata.info/__**____listinfo/pd-list<http://lists.puredata.info/______listinfo/pd-list>< >> http://lists.puredata.info/__**__listinfo/pd-list<http://lists.puredata.info/____listinfo/pd-list>>> >> <http://lists.puredata.info/__**____listinfo/pd-list<http://lists.puredata.info/______listinfo/pd-list>< >> http://lists.puredata.info/__**__listinfo/pd-list<http://lists.puredata.info/____listinfo/pd-list>> >> <http://lists.puredata.info/__**__listinfo/pd-list<http://lists.puredata.info/____listinfo/pd-list>< >> http://lists.puredata.info/__**listinfo/pd-list<http://lists.puredata.info/__listinfo/pd-list>>>> >> <http://lists.puredata.info/__**____listinfo/pd-list<http://lists.puredata.info/______listinfo/pd-list>< >> http://lists.puredata.info/__**__listinfo/pd-list<http://lists.puredata.info/____listinfo/pd-list>> >> <http://lists.puredata.info/__**__listinfo/pd-list<http://lists.puredata.info/____listinfo/pd-list>< >> http://lists.puredata.info/__**listinfo/pd-list<http://lists.puredata.info/__listinfo/pd-list>>> >> <http://lists.puredata.info/__**__listinfo/pd-list<http://lists.puredata.info/____listinfo/pd-list>< >> http://lists.puredata.info/__**listinfo/pd-list<http://lists.puredata.info/__listinfo/pd-list>> >> <http://lists.puredata.info/__**listinfo/pd-list<http://lists.puredata.info/__listinfo/pd-list>< >> http://lists.puredata.info/**listinfo/pd-list<http://lists.puredata.info/listinfo/pd-list> >> >>>> >> >> >> >> >> >> ______________________________** >> _____________________ >> >> >> Pd-list@iem.at <mailto:Pd-list@iem.at> <mailto:Pd-list@iem.at<mailto: >> Pd-list@iem.at>> mailing list >> UNSUBSCRIBE and account-management -> >> http://lists.puredata.info/___**_listinfo/pd-list<http://lists.puredata.info/____listinfo/pd-list>< >> http://lists.puredata.info/__**listinfo/pd-list<http://lists.puredata.info/__listinfo/pd-list>> >> <http://lists.puredata.info/__**listinfo/pd-list<http://lists.puredata.info/__listinfo/pd-list>< >> http://lists.puredata.info/**listinfo/pd-list<http://lists.puredata.info/listinfo/pd-list> >> >> >> >> >> >> >>
_______________________________________________ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
