Pd-list November 2004

pd-list@lists.iem.at

150 participants
258 discussions

Re: [PD] GEM - multiple geos - each accessable for transformation
by chun lee 29 Nov '04

29 Nov '04

Hi peter: Tried your patch and it makes sense. I was thinking of the similar thing. I also found this patch on the list "[pd][Gem]Iterating geos tricks" which uses writing to arrays to remember the location of each geo. And it looks really nice;) This is definitely interesting to look into more. Following your patch, one idea will be creating the [pd tabwrite] dynamically according to the number of cubes being drawn. So that each cube can adjust its own position. Cheers CHUN >Try this one, based on tables, with each slot in a table corresponding to >one cube. Translator needs telling each individual time you want it to do >something different, which means that your method of only sending in data >when the counter ID matched the chosen object to move, meant that data would >remain there for all the other cubes. So instead, you can use your 'chosen >for editing' number, to decide which slot in the tables to write to. Then >you read all of them back, every frame. I hope that, and my attached >example, make sense. > >Cheers, >Peter

1 0

Gem-bin-0.90.1
by Luisa Lamas 28 Nov '04

28 Nov '04

11 16

ALSA MIDI support
by Carlos Pita 28 Nov '04

28 Nov '04

Hi! Is alsa midi support scheduled for future releases of pd? Is there any patch to current stable version? Currently I'm using snd-virmidi module the following way: > modprobe snd-virmidi > cat /proc/asound/devices [...] 43: [1- 3]: raw midi 42: [1- 2]: raw midi 41: [1- 1]: raw midi 40: [1- 0]: raw midi > ln -s /dev/snd/midiC1D0 /dev/midi10 > pd -midiindev 11 Then I aconnect muse or vkeybd to alsa client VirMIDI 1-0. It works fine, but is this the right way to do it? For me it was a matter of trial and error. Also > pd -listdev input devices: 1. OSS device #1 output devices: 1. OSS device #1 API number 2 no midi input devices found no midi output devices found never finds midi devices. Why? Thank you, Carlos

1 0

motion detection with gem?
by Christian Klotz 28 Nov '04

28 Nov '04

Hi list, I read on the TODO of Gem that the motion detection has to be implemented first but I want to know if somebody tried some 'workarounds' to get something like motion detection. I think about using an infrared camera which will input a black/withe signal. Any suggestions? regards, christian --- Christian Klotz Kunsthochschule Kassel / School of Arts Kassel ::digitalpool

3 2

equal tempered scale object available
by Niklas Saers 28 Nov '04

28 Nov '04

Hi everyone, I'm relatively new to the Pd community so I'm not quite sure where would be a good place to announce this, so I guessed that this would be a good place: I have written an external object that takes a float with amount of Hz a sound is and determines the note of this tone. I.e, 440 is A, 415 is a 1¢ low Ab with a 0.174 Hz error (thus not quite as low as 1¢, but almost 1¢). It uses the pyext extention (available from Thomas Grill at http://grrrr.org/ext/py/) and is released under a two-clause BSD license (meaning you can use it at will as long as you keep my copyright statement available in source and binary). It's available from: http://blog.saers.com/archives/2004/11/25/note-determining-object/ I'd really like to hear back from you with comments in the blog and here (or private email), both with regards to the object and if this is not a suitable place for object announcements. Cheers Nik

6 10

ASIO latency (windows)
by smoerk 28 Nov '04

28 Nov '04

hello, is it possible to get low latency with Pd and asio drivers on windows? i have a usb audio card (hercules dj console, don't lough), that works very well with audiomulch (4ms latency), but with Pd i have dropouts with the default 70ms delay. as the usb card works perfectly with audiomulch, why doesn't it work with pd? both use portaudio? are there any command line parameter i have to apply? (btw, how do i get a list of alle the command line parameters with pd 0.38-test10?)

10 23

pd-0.38-0test10 and delread~/vd~
by Ben Saylor 28 Nov '04

28 Nov '04

Hi List, I upgraded from 0.37-1 to 0.38-0test10 and noticed that my plucked string instruments, based on delay loops with vd~, are now out of tune. If I compare the output of the delay loop with a metro, they drift out of sync over time. With 0.37-1, they stay in sync. The same is true with delread~. What's going on? Ben

2 2

a problem of method
by Yves Degoyon 27 Nov '04

27 Nov '04

hola, sorry, i still find very annoying that pd won't let me declare a method with the following arguments : A_SYMBOL, A_DEFFLOAT, A_SYMBOL but, that i HAVE TO put all the symbols first ( at least with pd 0-37 test 4 ), like in : A_SYMBOL, A_SYMBOL, A_DEFFLOAT what's the status ?? sevy

4 3

Re: [PD] set message?
by musil＠iem.at 27 Nov '04

27 Nov '04

Hi Rory, in iemlib2 there is a [add2_comma] -object which prepends the selector-symbol "add2" and a comma. try this attached example-patch. cheers, Thomas Musil. Zitiere Rory Walsh <rorytheroar(a)yahoo.com>: > Hi, can anyone tell me how I send a coma to a message > box? if I enter this to a message box and bang it to > another I do not get the comma or anything after it? > > ---------------------- > |set hi, how are you| > ---------------------- > | > | > ------------ > |hi | > ------------ > > I would like to be able to print a comma to command > promt? Any ideas? > > Rory. > > > > ___________________________________________________________ > Moving house? Beach bar in Thailand? New Wardrobe? Win Â£10k with Yahoo! > Mail to make your dream a reality. > Get Yahoo! Mail www.yahoo.co.uk/10k > > _______________________________________________ > PD-list(a)iem.at mailing list > UNSUBSCRIBE and account-management -> > http://iem.at/cgi-bin/mailman/listinfo/pd-list >

1 0

Re: playing with hid object
by Hans-Christoph Steiner 27 Nov '04

27 Nov '04

(I cc'ed the Pd list since I think this stuff is of general interest) On Nov 26, 2004, at 1:51 AM, eyem wrote: > Hi Hans, > > I am just playing with [hid] 0.13 .... on linux (2.4.18) with a Wacom > Saphire > tablet. > > It works ..... but I'm not sure if there are bugs or if my useage is > incorrect. Can you help me with the following: > > 1) how can I reduce the sensitiveness of the pen (Christian Klippel's > jMAX > [USB] object can do this so I assume it is possible). Is this possible? > 2) I dont seem to have access to the pressure of the Wacom pen (I > guess that's > related to the 1st question) I haven't played much with tablets so I don't know the details. But I want to borrow a tablet and work out the details. But it would definitely speed things up if I had my own, in terms of motivation and ease of working. Too bad I am too broke to buy one... (hint hint ;) > 3) if I move the pen slowly into range of the tablet, the help patch > shows a > '1' message on btn_0. .... if I remove the pen quickly, the '1' > message goes > to '0' (correct behaviour).. but if I attempt the same with the back > of the > pen, btn_1, when I remove it quickly the '0' (off) message is not > registered. > (is it a hardware thing?). I am not sure what btn_0 and btn_1 are in this case, since I haven't tested the tablet yet. But this sounds like it could be a bug. I know that under GNU/Linux if the poll time is set slow (like 20 or more), that events like button pressed could be lost. I haven't had time to test this in depth. What needs to happen is to have all events being queued, then Pd checks the queue. I thought maybe that this queue was built-in to the /dev/input/event? interface, but I am not sure. On MacOS X HID Manager, the API provides queues. > 4) I get no relative coordinates. I suspect this is something I have > to switch > in the Wacom driver, does that sound right? ... or is there a way to > switch > that using the hid object? What part of the tablet should give relative coordinates? The tablet senses absolute position of the pen since its limited by the size of the tablet. Relative coordinates seem only useful or necessary with a device like a mouse, that has no fixed reference point (like the edges of the tablet). For a device that outputs absolute data like a tablet, I think that velocity is more useful than relative mode. This is what relative axis data is anyway: amount traveled (usually pixels) per unit of time (refresh rate of the device). > 5) CPU useage is very high at polls of 20 ... what is the recommended > poll > useage? .... ok I know that is relative to the application, but what > owuld you > use? 50? Personally, I use 5ms since I want to have a good response time and CPU usage is less important to me. Also, it doesn't make sense to use a really fast poll rate if the device you are polling doesn't refresh very fast. I generally poll twice as fast as the refresh rate of the device to minimize latency. If you poll at the same rate as the device refreshes, you could get up to double the latency (if [hid] polls right before the event is reported). Ideally, a callback would be used when events happen rather than polling and its added latency, but there isn't really a mechanism to do this in Pd right now (AFAIK). But this is one of my concerns with using names rather than numbers since it takes a lot more CPU power to do pattern matching of symbols that it does for floats. So I think the plan for the future is to make [hid] the easy to use, cross-platform object for HIDs, and then also make [linuxhid], [darwinhid], and [windowshid], which will provide direct access to the native HID APIs on those platforms. These would output numbers for event types and codes rather than symbols, so the CPU usage would be lower. But they wouldn't be as nice to use, and they will only work on one platform. .hc > > if you think it would be useful to take these questions to the list, > then > please fel free to answer on the list, then we can take it from there. > > thanks for the object! > > Etienne > ________________________________________________________________________ ____ ¡El pueblo unido jamás será vencido!

1 0

← Newer
1
2
3
4
5
6
7
...
26
Older →

Jump to page:

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000

1999

1998

Pd-list November 2004