Pd-list September 2002

pd-list@lists.iem.at

91 participants
124 discussions

midi to freq equation
by Mark Khemma 23 Sep '02

23 Sep '02

Sorry guys/gals I know that this equation has be spout out before, but. . could someone please give me the equation for miditofreq, please? I know it has 2^(1/12) somewhere, but.. . My main reason for wanting to know this is that i'd like to do something like a mtof but the 12 tone equal temperment could be changed to some specific value (eg 13 tone, 76 tone, you get the idea). it would be an interesting way to study different modes (they call it modes right?) anywayz, thanks, mark.k

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buffering
by J. Scott Hildebrand 23 Sep '02

23 Sep '02

is there a built-in pd object to buffer audio for a specified amount of time? i'd like to try something like that to try and smooth my audio output. scott -------------------------------------------------------------------- "640K ought to be enough for anybody." -- Bill Gates, 1981 --------------------------------------------------------------------

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Soundblaster Audigy
by Olof Bendt 20 Sep '02

20 Sep '02

Hi, I am trying to make a four channel piece using pd under windows2000 and a Soundblaster Audigy Player card. I have installed the latest asio driver for the card and my other asio enabled software finds all the needed outports. In my other software the outports show as follows: 1-2 wav out1 3-4 wav out2 5-6 wav out3 7-8 front L/R 9-10 rear L/R 11-12 Sub 13-14 Reverb Accessing the front and rear speakers individually is no problem through dac~ 7-10. But for some reason the maximum channels available from pd is only 12. Trying to set this higher (using the -channels ... switch) results in an error stating that an invalid number of channels has been set. Therefore I can't access the reverb channel on the card wich in other software turns up as channel 13-14. Is there a reason why the reverb channels don't show up in pd. Can I work around this problem in any way. (reverb and other effects provided by the card would be really nice to have access to as a separate outport, as it works in for example cubase or reason) Thanks /Olof _________________________________________________________________________________ Olof Bendt - Researcher/Developer Smart Studio - The Interactive Institute +46-8-783 24 96

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maphash weirdness
by Michal Seta 20 Sep '02

20 Sep '02

Hi list, hi Olaf, I have this patch where I use maphash (many of them, in fact). When I first open the patch it says maphash <my_arguments> couldn't create and, obviously, the objects are not activated. Then i close the patch, reopen it and everything is fine. Not a big problem if I remeber to open the patch twice after quitting pd. But... -- ./MiS Michal Seta

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good news on convolution front
by J. Scott Hildebrand 20 Sep '02

20 Sep '02

the damn thing works. i have a patch with an external and another .c file, and it finally works. there's some clicks but that's probably due to the fact that i'm not buffering at all. currently there's 2,500 head-related transfer functions, but i'm also going to interpolate them so multiply that number by whatever you want. anyway we're getting close, so i hope there's some of you who can use some spatial audio in whatever you're doing. scott -------------------------------------------------------------------- "640K ought to be enough for anybody." -- Bill Gates, 1981 --------------------------------------------------------------------

2 1

PD 0.35 for IRIX
by Søren Bovbjerg 20 Sep '02

20 Sep '02

Hi Is there any chance that there will be a PD 0.35 for IRIX, or has that platform been dropped? (Or does the Linux version compile on IRIX?) Cheers Soeren

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Soundblaster Audigy
by Olof Bendt 20 Sep '02

20 Sep '02

I am trying to make a multichannel piece using pd under windows2000 and a Soundblaster Audigy Player card. I have installed the latest asio driver for the card and my other asio enabled software finds all the needed outports. In my other software the outports show as follows: 1-2 wav out1 3-4 wav out2 5-6 wav out3 7-8 front L/R 9-10 rear L/R 11-12 Sub 13-14 Reverb Accessing the front and rear speakers individually is no problem through dac~ 7-10. But for some reason the maximum channels available from pd is only 12. Trying to set this higher (using the -channels ... switch) results in an error stating that an invalid number of channels have been set. Therefore I can't access the reverb channel on the card wich in other software turns up as channel 13-14. Is there a reason why the reverb channels don't show up in pd. Can I work around this problem in any way. (reverb and other effects provided by the card would be really nice to have access to as a separate outport, as it works in for example cubase or reason) Thanks /Olof _________________________________________________________________________________ Olof Bendt - Researcher/Developer Smart Studio - The Interactive Institute +46-8-783 24 96

1 0

question about data structure
by J. Scott Hildebrand 20 Sep '02

20 Sep '02

i have an external that i'm working on that is being very tempermental at the moment. i have the following code right BEFORE everything else in my ~.c file: static float bhrir_l[25][50][512]; static float bhrir_r[25][50][512]; static void readfile(void) { t_int az, el, i; FILE *fid; fid = fopen("hrir.bin", "r"); for(az=0; az<=24; az++) { for(el=0; el<=49; el++) /*takes from hrir.bin all hrtfs and arrays them*/ { fread(bhrir_l[az][el], sizeof(float), 200, fid); for(i=200; i<=511; i++){bhrir_l[az][el][i]=0;} /*adds a bunch of zeroes*/ fread(bhrir_r[az][el], sizeof(float), 200, fid); for(i=200; i<=511; i++){bhrir_r[az][el][i]=0;} } } } this code takes a binary file and takes a bunch of data and arranges it in the two 3-dimensional arrays. when i try to access the arrays inside of my perform function, all i get is zeros. do i need to declare the arrays and fill them up somewhere else? i was thinking that i might need the arrays to be inside Pd's internal data struct, but i'm not sure. any help is appreciated! scott -------------------------------------------------------------------- "640K ought to be enough for anybody." -- Bill Gates, 1981 --------------------------------------------------------------------

1 0

Sblive 4 channels with Alsa
by Linium 19 Sep '02

19 Sep '02

Hello, I would like to use pd with the 4 outs of the Sblive. I can specify "cards.pcm.front" or "cards.pcm.rear" for the -alsadevice option (and it works accordingly) but how to have both at the same time ? Thx, Linium

1 0

framestein codec?
by david moss 19 Sep '02

19 Sep '02

Hi there, I have been lurking on the list for a while now, mostly just to see what is possible with pd/gem/framestein. I have framestein 0.19 working find on an old machine but now I have installed the new version (framestein 0.31) onto another machine and nothing is output from framestein. The main problem seems to be with the avi supplied (it doesnt open in media player on the new machine), which I guess is codec related. Can anyone tell which codec needs to be installed in windows 98 for framestein video to work? However also the text and sonogram examples dont display anything which makes me think it may be something else as well.... any ideas? Kind regards Dave mK ps much credit to all you programmers who are providing this stuff free of charge, it allows people like me (lots of ideas, not so much money!) to try and use computers for something interesting ;-) __________________________________________________ Do you Yahoo!? Yahoo! News - Today's headlines http://news.yahoo.com

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Pd-list September 2002