Pd-list April 2002

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115 participants
275 discussions

Re: [PD] [announce] Vector Base Amplitude Panning
by Juha Vehviläinen 13 Apr '02

13 Apr '02

Oooooooops!!! I forgot to include define_loudspeakers.c ... I will fix this on monday. Yes, It's amplitude only. I'm working on a demo that will use delays to give a sense of distance.. but this might take some time. Imo the nice thing about vbap is it allows any number of loudspeakers in any position.. Thanks. Juha ----- Original Message ----- From: "Olaf Matthes" <olaf.matthes(a)gmx.de> To: "Juha VehvilÃ¤inen" <jusukoti(a)kala.atp.fi> Sent: Friday, April 12, 2002 5:29 PM Subject: Re: [PD] [announce] Vector Base Amplitude Panning > Hi Juha, > > it compiled for Win after adding a simple > > #ifdef NT > #define sqrtf sqrt > #endif > > ...but: it does not work. When I try to load the patch (vbap-help.pd) with Pd > 0.35 test17 and zexy 1.1 I get: > > define_loudspeakers 3 -30 0 30 0 -90 0 90 0 180 0 180 45 -45 45 45 45 > ... couldn't create > > and a lot of "connection failed" errors... > > I just wanted to let you know in case there's something missing in the > tarball. I was sort of surprised to see your announcement because I'm working > on an external to do a similar thing (quadrophonic listening space using 4 > (later 8) loudspeakers). As far as I understood the method used in VBAP it's > only amplitude that is used to create the virtual source. My external will > use reverberation as well to create a feeling of 'remoteness' that goes > beyond the space defined by the speakers... (it's somehow based on the > formula / basic principle given in Dodge/Jerse's 'Computer Music', 2nd. Ed., > pp. 317 - 321).

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parsing filenames
by Dan Neveu 13 Apr '02

13 Apr '02

trying to find a way to take an incoming audio filename from a netreceive message and direct different formats to the appropriate player: posh.wav -> readsf~ ginger.mp3 -> mp3play~ i'd like to allow the end user to keep the filename intact and not have to separate <file / extension> into two messages in order to analyze the strings. what would be nice is if select or strcmp had wildcard options (sel *.wav). ideas? -dan

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Re: [PD] pd-35test17 and audio in ?
by joge . 13 Apr '02

13 Apr '02

i am using win2000 with a yamaha DS-XG sounds card on my sony vaio z505ls laptop . i have a simliar situation as marius [sme] has , i am not using the -asio flag . ..... .... .... .... after some testing i have narrowed my problem down to the -inchannels <n> flag . if i have a <n> value if 2 , then sound in doesnt work . if i use a <n> value of 1 it seems to work . i even get both left and right channels it seems in 1 . perhaps the inchannels is not counting from 0 ? not sure . joge . ----- Original Message ----- From: "Miller Puckette" <mpuckett(a)man104-1.ucsd.edu> To: "joge ." <gboy(a)nycap.rr.com> Sent: Friday, April 12, 2002 1:22 PM Subject: Re: [PD] pd-35test17 and audio in ? > I don't think so... do you know something I don't? What OS & driver > set is this happening with? > > thanks > Miller > > On Fri, Apr 12, 2002 at 10:34:12AM -0400, joge . wrote: > > just got around to playing with this version of pd ; has audio-in been > > disabled for this version ? i can seem to get it to work . > > > > thanks . > > > > joge . > > > > >

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Laptop+Linux+PD+LowLatencySoundCard
by Ali Azarbayejani 12 Apr '02

12 Apr '02

Hi, I am new on the list. I used Max a long time ago. Thanks Miller for making PD. I would like to set up Laptop + Linux + PD + LowLatencySoundCard for audio and midi. I am in the fortunate position of not having any prior constraints since I will buy the system from scratch, but I am concerned about getting parts that will work together. For a low-latency (<10ms) soundcard I've been turned onto RME Hammerfall, but I understand from previous discussion on the list and the net that o there is some ALSA driver that works for some RME system (but not a laptop system?) o there is currently no working ALSA driver for the Multiface o there might be a third-party ALSA driver for the Multiface sometime o there might someday be a working ALSA driver for the Multiface that is supported by RME (did i get this right?) (anyone able to use an RME Multiface with PD on Linux?)...so I'm afraid that this probably won't work at the moment. Also, I don't know if there are any quirks with particular Laptops with regards to Linux/PD. My question is: can anyone specify such a system for me that they've been able to get working or is reasonably sure would work? (I assume I'd use RedHat 7.2 (do I have to get a low-latency kernel?), and the latest version of PD...but what laptop and what soundcard?) (or conversely, what laptop/soundcard NOT to get?) Thanks in advance, --Ali

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accidental recogniser
by Marcus Flanagan 12 Apr '02

12 Apr '02

Hello everyone, Attached is a patch of mine. It attempts to modulate when the 6th semitone above the root of a major scale is played(F sharp in the case of C major, C sharp in the case of G major). I am trying to implement this so that it interates through the circle of fifths..and eventually back to C major...only problem is that I seem to keep getting myself into infinite loops with the "selects" and "spigots" that I use. Can anyone suggest of show an easier way of doing it? My aim is to be able to suggest backing key progressions depending on the melodies played on my MIDI keyboard.(i.e.. the computer puts an appropriate backing to my solo playing). Help appreciated, Marcus. _________________________________________________________________ Chat with friends online, try MSN Messenger: http://messenger.msn.com

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pd-35test17 and audio in ?
by joge . 12 Apr '02

12 Apr '02

just got around to playing with this version of pd ; has audio-in been disabled for this version ? i can seem to get it to work . thanks . joge .

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asio
by kurt＠starbot.be 12 Apr '02

12 Apr '02

hello pd-35 test16 & test17; I start pd with the -asio flag. verything seems to go well but I can't open or create a pd patch... I'm on W2000 and this is what I get in the dos window: nchan 2, flags 3, bufs 4, framesperbuf 256 PaASIO_QueryDeviceInfo: numDrivers = 1 ***************** Driver [0]: ASIO ADSP24(WDM) PaASIO_QueryDeviceInfo: InputChannels = 12 PaASIO_QueryDeviceInfo: OutputChannels = 10 PortAudio : possible sample rate = 22050 PortAudio : possible sample rate = 32000 PortAudio : possible sample rate = 44100 PortAudio : possible sample rate = 48000 PortAudio : possible sample rate = 88200 PortAudio : possible sample rate = 96000 ---------------------------------- PortAudio : minSize = 336 PortAudio : preferredSize = 800 PortAudio : maxSize = 2730 PortAudio : granularity = 4 PortAudio : User buffer size = 256 PortAudio : ASIO buffer size = 1024 PortAudio : Minimum BufferOffset for Output = 0 PortAudio : ASIOCreateBuffers with size = 1024 PortAudio : InputLatency = 800 latency = 18 msec PortAudio : OuputLatency = 800 latency = 18 msec E:/pdasio/pd Does anybody know why it doesn't work? All works fine if i open pd without asio. thx allready, Kurt

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drawing in arrays/graphs
by Michael Iber 12 Apr '02

12 Apr '02

Hello, wasn't there a time, when one could draw into an array as long as buffers=pixels? (Or am I again thinking in the wrong program ...) I didn't manage to do this with the current version (on w2k). How is it possible? Thanks and regards, Michael

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Re: [PD] iiwu
by TidyNeatHair＠netscape.net 12 Apr '02

12 Apr '02

Thanks everyone, that was it! (using version 0.6 of both pd-iiwu and iiwusynth) Now it works with the help-patch sound fonts, but not my .sf2's- I wonder why? (same for iiwusynth on its own as well as for pd-iiwu) Thanks again Tim >> Did you try "iiwu~" instead of "iiwu" ? >> The help file is wrong. >> >> Linium > >Ouch! Mea culpa - I changed the name from "iiwu" to "iiwu~" to reflect >the fact that it is an audio object, but I didn't update the help patch. > >Was this in fact your problem, or are you still without a working iiwu? > >Larry > > __________________________________________________________________ Your favorite stores, helpful shopping tools and great gift ideas. Experience the convenience of buying online with Shop@Netscape! http://shopnow.netscape.com/ Get your own FREE, personal Netscape Mail account today at http://webmail.netscape.com/

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[announce] Vector Base Amplitude Panning
by Juha Vehviläinen 12 Apr '02

12 Apr '02

Hi all, I'm currently working at the Laboratory of Acoustics and Audio Signal Processing at Helsinki University of Technology. This is also the place where Ville Pulkki, the creator of VBAP (Vector Base Amplitude Panning) works. The unavoidable consequence is, there's now a port for the latest VBAP to Pure Data. Here's an introduction, in Ville's words: "Vector Base Amplitude Panning (VBAP) is a method for positioning virtual sources to multiple loudspeakers. The number of loudspeakers can be varying and they can be placed in an arbitrary 2-D or 3-D positioning. VBAP produces virtual sources that are as sharp as is possible with current loudspeaker configuration and amplitude panning methods, since it uses at one time the minimum number of loudspeakers needed, one, two, or three." More info: http://www.acoustics.hut.fi/research/abstracts/vbap.html Download: http://www.acoustics.hut.fi/~ville/software/Pure_Data/ Advantages over the one in ggee are, at least: - object for defining loudspeaker positions - spread-parameter - new code (up to date with the max/csound-versions) The included vbap-help.pd uses matrix and matrix~ from zexy. (the tarball has sources and a binary for irix, more binaries will appear later..) cheers Juha

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Pd-list April 2002