Pd-list July 2010

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124 participants
188 discussions

Synaptics touchpad input not working
by James Dunn 12 Jul '10

12 Jul '10

I've tried using [hid] and [linuxmouse] and both objects can open the device but no data is output from either object. [MouseState] and [cursor] both work but I was hoping to get relative values. Is this a driver issue? I'm using Ubuntu 8.04 and Pd version 0.42.5-extended-rc3. Here's the console output: [hid] 0.7, written by Hans-Christoph Steiner <hans(a)eds.org> compiled on Jun 13 2010 at 11:45:43 Device 0: 'Macintosh mouse button emulation' on '/dev/input/event0' Device 1: 'AT Translated Set 2 keyboard' on '/dev/input/event1' Device 2: 'PC Speaker' on '/dev/input/event2' Device 3: 'Power Button (FF)' on '/dev/input/event3' Device 4: 'Sleep Button (CM)' on '/dev/input/event4' Device 5: 'Lid Switch' on '/dev/input/event5' Device 6: 'SynPS/2 Synaptics TouchPad' on '/dev/input/event6' Device 7: 'Video Bus' on '/dev/input/event7' Device 8: 'PS/2 Generic Mouse' on '/dev/input/event8' Supported events: Detected: [hid] opened device 6 (/dev/input/event6): SynPS/2 Synaptics TouchPad print: open 1 print: device 6 Also my xorg.conf has this info: Section "InputDevice" Identifier "Synaptics Touchpad" Driver "synaptics" Option "SendCoreEvents" "true" Option "Device" "/dev/psaux" Option "Protocol" "auto-dev" Option "HorizEdgeScroll" "FALSE" Option "VertEdgeScroll" "FALSE" Option "SHMconfig" "on" Option "VertTwoFingerScroll" "TRUE" Option "HorizTwoFingerScroll" "TRUE" EndSection Any ideas? thanks, James

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get the position of the mass in the same order than the creation with MSD
by Jack 12 Jul '10

12 Jul '10

Hello, I have a problem with MSD (exactly [MSD2D]). When i send [bang, get massesPos mamasse( to [MSD2D], the output order of the positions of the masses is not the same that the one which was given during the creation. I'm not sure to be clear, so it is better to see an example ;) (see the attach patch) : If i create 3 masses in this order : [mass mamasse 1 100 0 1(, [mass mamasse 1 100 2 3( and [mass mamasse 1 100 4 5(. Then if i send [bang, get massesPos mamasse(, i can get from the first outlet of [MSD2D] : [massesPosId mamasse 2 3( [massesPosId mamasse 0 1( [massesPosId mamasse 4 5( Or [massesPosId mamasse 4 5( [massesPosId mamasse 2 3( [massesPosId mamasse 0 1( Or ... This is not really easy for me because i need to conserve this order :/ It would be better to always get : [massesPosId mamasse 0 1( [massesPosId mamasse 2 3( [massesPosId mamasse 4 5( Is there a solution with MSD ? With PMPD and dynamic patching, i have no problem, but it is too slow. Number of mass > 10000. ++ Jack

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Re: [PD] gem -- antialiasing?
by tim vets 12 Jul '10

12 Jul '10

2010/7/11 pascale gustin <gustin.pascale(a)free.fr> > 2010/7/11 tim vets <timvets(a)gmail.com>: > > Hello, > > I'm looking for a way to do anti-aliasing in Gem > > I tried the 'fsaa' message, as suggested > > in http://lists.puredata.info/pipermail/pd-list/2003-11/015230.html > > but it doesn't work (no method for 'fsaa') in my version. (ver: 0.91.3 > > 'tigital' compiled: Jun 4 2009) > > may be FSAA and not fsaa ???? > > Hi pascale, thanks for the suggestion. I don't get the error anymore with FSAA, but I don't see any effect either. does it require specific hardware ? gr, Tim > > Is it possible ? > > Thanks > > Tim > > _______________________________________________ > > Pd-list(a)iem.at mailing list > > UNSUBSCRIBE and account-management -> > > http://lists.puredata.info/listinfo/pd-list > > > > > > > > -- > Yi Sang à Paris, du 23 juin au 4 juillet 2010. > http://www.yisang.fr/ > http://tinyurl.com/2fjt6jq > > > http://www.pascsaq.org > > -r-W-x-R-W-X-R- x > autobuild/wheel > ---------------[18608128 - s-ile-nses] > @@@@@@@ ;-) >

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Re: [PD] gem -- antialiasing?
by Samuel Burt 12 Jul '10

12 Jul '10

So, knowing about antialiasing is making me very excited. I just tried it on a MacBook Pro (Nvidia onboard graphics) in OS X. With FSAA 0, I had no antialiasing. WIth FSAA 1, I could see the jagged line effect reduced. With FSAA 2, I could see double the antialiasing effect. Past FSAA 4, I couldn't ascertain whether there was any difference. I'm wondering if this is documented anywhere. Also, I noted a huge drop in framerates when running antialiasing with a patch I made with seven regions of video feedback. I will have to try it later with the dedicated Nvidia graphics card running. I'm still wondering if it is possible to add blur to layers or create lens focus blur with Gem. Sam

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Re: [PD] Future of Motorsounds in Electric Cars and Games
by ede cameron 11 Jul '10

11 Jul '10

Actually after some thought and with what you said if all cars made less sound but a similar type of sound then the adjustment would come for both hearing and sightless people. The problem now is for sure that if there is a mix of different types of cars (electric and gas) and that we are use to a certain volume within our environment, buses and gas driven cars. If this volume was lowered for only electric cars then we won't hear them if however the urban volume is lowered through out then there would be no hazard, lowering the volume of an urban environment obviously is not top of the list of most urban developers. But standardizing a sound for all cars.. maybe just sample a gas driven car and mimimic its acceleration and pitch at different speeds. Seems a shame to have opportunity to lower volumes in urban settings and not work out some solution that involves decreasing sound levels instead of increasing them. Could also see the situation as a transition period and that in fifty years the need for added sound will be gone as people adjust to the newer levels of hybrid and electric cars. Only time until the oil runs out. Though bio diesel buses are pretty loud, veggie oil is clean but noisy but Of topic if algae is used which can be grown from sewage it is a better choice, environmentally than big batteries. Of topic. Flying cars would create a hellish world. They I'm sure can be made but the complexities of 3 dimensional traffic rules is more than likely the reason they aren't been developed. I'm sure we envision flying cars as the chance of flying from A to B in a straight line. The mess that would be created with everyone flying from A to B in a straight line would be chaos to say the least. ede On 2010-07-11, at 5:49 AM, Andy Farnell wrote: > > > Yes, there's already a lot of thought that goes > into road safety for blind people, such as the > localisation/directionality of audio beeps at > junction crossings. Fast, totally silent cars > would be a nightmare for blind people. > > And for fully sighted people too. > > But without some standardised sound it's now > worse than no sound if every car makes a > different weird noise that you cannot identify > or locate, so every urban street becomes (more of) > a cacophony of signals that confuse and disorient. > > Past a certain threshold people just shut off, > pop in their headphones, crank up the music > and choose oblivion over awareness. > These people are as good as deaf and as much > at risk as blind people even if cars do make > a noise. But that is by choice of course. > > And what I noticed in my work with companies > making mobile audio tech, is that for many urban > dwellers their headphones are a last vestige > of personal space in an intrusive world > of competing sounds. > > In many places, by analogy to radio waves, the > audio spectrum is already full. > > My suggestion is to discourage behaviour > that ups the stakes with more competitive use > of sound. > > At the risk of going off topic, the real problem > is that vehicles travel way too fast in built > up areas. > > And while we're on this futuristic topic, > wtf happened to our flying cars, I'm still > waiting! > > a. > > > On Sat, 10 Jul 2010 19:03:37 -0400 > ede cameron <ecameron(a)videotron.ca> wrote: > >> From my understanding having quiet cars (electric) make noise (our some sound similar to a gas driven car) is due >> to pressure primarily from the blind who rely on the sound cars make to navigate in urban environments. >> >> http://www.msnbc.msn.com/id/21112810/ >> >> ede >> >> On 2010-07-10, at 7:43 AM, Andy Farnell wrote: >> >>> >>> The translation was so bad you might even get completely >>> reversed scores for some of these questions. >>> >>> An interesting topic though. >>> >>> I've discussed this with two groups of undergrad and >>> masters students recently. >>> >>> It is likely that legislation will quickly be >>> needed to deal with customised car sounds, because >>> human nature won't permit some people to have >>> ordinary, quiet, functional ones. It will >>> quickly become a race to have the most disturbing >>> sound once there is a market for this technology. >>> >>> As an environmental issue, noise pollution is the >>> boisterous elephant in the street. >>> Nobody wants to tackle it. Because sound is a >>> secondary faculty it gets pushed under the carpet >>> in discussions. For example new London buses with >>> gas turbo engines cut CO2, but they also reduce the >>> quality of life by keeping people awake at night with >>> their much louder screaming engines. >>> >>> Helath and safety measures have increased the power >>> output (and perceived loudness by adding more noise >>> and inharmonics) of sirens, so now the vehicles can >>> speed even faster. While they may get there 20 seconds >>> earlier and save a life, 10,000 other people along the >>> route have their peace and concentration shattered. >>> Cumulatively the adverse health issues (hearing damage, >>> stress, sleeplessness) plus the loss of productivity >>> may outweigh any benefits of louder sirens. >>> Yes this is Schopenhauer for the 21st Century, but >>> nothing has changed. You can pump 120 dB of doofcar >>> noise into the street and nobody looks twice, but >>> if you started pumping poisonous gas into the street >>> you'll be thrown in jail. Only one kind of pollution >>> is trendy to decry. >>> >>> Meanwhile, car manufacturers build ever quieter >>> interiors that are impervious to external noise. >>> So there is a 'war' going on. Drivers want to be >>> cocooned in a private world, while inflicting their >>> 'personality' on the outside. This is a pathological >>> stance. >>> >>> New technologies might be optical, or radio, that >>> allow emergency vehicles to signal ahead to roadside >>> beacons or dasboard indicators in cars. Satnavs could be >>> modified to prominently indicate nearby emergency >>> vehicles. >>> >>> Directional demodulation sound could be employed for >>> sirens as only those in front of the vehicle need to >>> hear it is coming. >>> >>> >>> >>> >>> >>> >>> >>> >>> On Thu, 8 Jul 2010 22:35:34 +0200 >>> András Murányi <muranyia(a)gmail.com> wrote: >>> >>>> On Thu, Jul 8, 2010 at 9:17 PM, hghoyer <mail(a)hghoyer.de> wrote: >>>> >>>>> Hi, >>>>> >>>>> I would be glad if you participate in my brief survey. >>>>> It is about sounds in computer games and electric cars ... >>>>> http://research.hghoyer.de/index.php?sid=71581&lang=en >>>>> >>>>> Sorry, my question has to do only indirectly related to PD. >>>>> I am happy you are interested, include evaluation of the survey! >>>>> >>>>> Thanks Hans >>>>> >>>> >>>> Interesting stuff. Please let me just drop my 2 cents in: >>>> (SPOILER ALERT!) >>>> - Some of the (english language) questions were really hard for to >>>> understand (maybe because i'm not native english either) >>>> - Lot of talk about sound with no sounds! I would have been happy to listen >>>> to different sounds and express my preferences, but deciding on _loose >>>> descriptions_ of sounds is much harder for me. >>>> >>>> Andras >>> >>> >>> -- >>> Andy Farnell <padawan12(a)obiwannabe.co.uk> >>> >>> _______________________________________________ >>> Pd-list(a)iem.at mailing list >>> UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list >> > > > -- > Andy Farnell <padawan12(a)obiwannabe.co.uk>

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Tracking color with GEM+Pdp
by Olivier Baudu 11 Jul '10

11 Jul '10

Hi, I would like to track different colors at the same time with my web cam so I've try different way. I begun in GEM with [pix_movement] and/or [pix_alpha] and/or [pix_background]. It was quite good until I wanted only one tracking. With two, it begun more complicate to configure [pix_alpha] in RGBA to dissociate the spots. So, I've tried [pdp_ctrack] which is very powerful but in some situations it would be better to process only with moving pixel. I thought [pix_2pdp] would be the solution to use [pix_movement] before [pdp_ctrack] but it seem not to work with [pix_video] in RGBA colorspace, and in YUV I loose the color information after the [pix_movement] process... (By the way, I can't have simultaneously my webcam in GEM and in Pdp with [pix_2pdp], but, maybe, it's normal) What can I do ? Is there a [pix_movement] for Pdp I didn't find yet ? Is there a way to chose precisely the color to configure [pix_alpha] ? (maybe by converting the colorspace with [pix_rgb2hsv] but what to do after ?). Of course, if you have a solution for tracking color without answering my questions, I'm still interested. :-p Thanks. 01ivier

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Re: [PD] pd on armv7 (beagleboard): crackles / pcm not available?
by Damian Stewart 11 Jul '10

11 Jul '10

> Date: Fri, 09 Jul 2010 13:39:14 +0200 > From: IOhannes zm?lnig <zmoelnig(a)iem.at> > On 07/09/2010 01:01 PM, Damian Stewart wrote: > >> 2b. (after sudo killall xdm) i tried running pd -nogui -alsa -noadc -open my_test_patch.pd, which gives me no sound output at all, just a message that "snd_pcm_open (output): Device or resource busy". > > just in case: you are aware of the problems on linux with starting the > audio-engine with loadbang in a nogui-environment? > http://sourceforge.net/tracker/?func=detail&aid=2724318&group_id=55736&atid… > > the workaround usually is to delay the "; pd dsp 1" message sufficiently. thanks IOhannes, this took away the snd_pcm_open error. > Date: Fri, 9 Jul 2010 14:01:07 +0200 > From: august <august(a)alien.mur.at> > > it sounds like a pulseaudio problem. Ubuntu comes with a sound deamon > called pulseaudio. Pd doesn't like it, but other apps are okay with it. > > try killing or removing pulseaudio or > doing "pasuspender" > > and then starting pd with alsa. thanks august, but nope, that wasn't it - no pulse audio processes running here. -- damian stewart . @damiannz . damian(a)frey.co.nz frey . contemporary art . http://www.frey.co.nz

1 0

Future of Motorsounds in Electric Cars and Games
by hghoyer 11 Jul '10

11 Jul '10

Hi, I would be glad if you participate in my brief survey. It is about sounds in computer games and electric cars ... http://research.hghoyer.de/index.php?sid=71581&lang=en Sorry, my question has to do only indirectly related to PD. I am happy you are interested, include evaluation of the survey! Thanks Hans

6 6

gem -- antialiasing?
by tim vets 11 Jul '10

11 Jul '10

Hello, I'm looking for a way to do anti-aliasing in Gem I tried the 'fsaa' message, as suggested in http://lists.puredata.info/pipermail/pd-list/2003-11/015230.html but it doesn't work (no method for 'fsaa') in my version. (ver: 0.91.3 'tigital' compiled: Jun 4 2009) Is it possible ? Thanks Tim

2 1

Jack, Pd-extended, Lucid and me.
by Olivier Baudu 11 Jul '10

11 Jul '10

Hi. I'm going to try to expose the problems I've met during the last two month dealing with the title of my post. Sorry if it's confused. This winter, I used to work on an Ubuntu Hardy, Extended 0.41.4 and with the jackd and qjackctl from the official repository (by the way, my sound card is a firewire Presonus Firepod). I had no problem to use 4 different instances of Pd at the same time using jackd as sound server. (and I can precise I didn't need RT-kernel to do what I wanted). I recently change for Ubuntu Lucid. So I also change for Pd 0.42.5 (rc4) and the new official jackd and qjackctl. If I use the kernel 2.6.32-23, I can play my patch on one instance, it's stable but the sound crunch a little bit sometimes. I also can execute my patch on 4 instances, but the sound is awful and 3 minutes later, Jack quit. So I've try the 2.6.31-11-rt. In Pd-ext, If I change directly from ALSA to Jack, pd quit. Every time I have to change to OSS before to choice Jack and I can't save the jack configuration. On one instance the sound is perfect and stable. It's possible to launch 4 instances without patch and to hear simultaneously the 4 tests tones on my sound card using jack. But it's impossible to launch even 2 instances with my patch. Both quit at the same time when I try to pass from OSS to Jack on the second. Console message just tell me that GUI of Pd have quited. My patch is the one you can find on this page : http://yamatierea.org/papatchs/squareroom/OSR.htm Direct link for the patch : http://yamatierea.org/papatchs/squareroom/OSR.zip But be careful if you look inside... it's still a little bit fuzzy... Do you think there is a way to solve my problem ? --> Using my patch, simultaneously on 4 instances of Pd-extended using Jack on Ubuntu 10.04? Thank you. 01ivier

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Pd-list July 2010