I posted this in the pixel section but got no usable response, so I am trying in here. Part of my problem was I had an old version of GEM and the help files didn't work, but yesterday I installed the new version and the help files work now, so I looked at the help file for pix_write, and it does say you can change the file output type, but it is pretty vague on how to do it, in my patch I am working on I have tried changing the message box sending filename & type to output jpegs, but no matter what I do it still outputs tiff files and I want jpegs. Does anyone know what exactly to do? Maybe with a working example patch?

Hi, I would like to know how to change the file types written out by GEM with pix_write? On my computer it writes out .tiff, but I want to change it to jpg?

Thanks

This is sort of a newbie question, but here goes:

I am using fiddle to get audio from my microphone and run it through synths, etc. The sounds resulting are very chaotic due to the changing numbers. My question is, how do I smoothly change from one number to the next? For instance, I want to smoothly change from 80 to 100 over a half-second or so. I know there must be a way to do this simply but I can't figure it out and I have been reading and reading everything I can find!!!!
Will someone please give a sort-of n00b some friendly advice?

Hi, I am trying to record my visual output from GEM. I made a patch that takes audio from a microphone and using fiddle~ to route numbers it makes GEM do stuff. All that works fine. I want to record the visual output to files or a Quicktime, I am still kind of a n000b and I know that pix_write & pix_record are supposed to write files out but I can't figure out how to make it work...
Any friendly step-by-step advice or patch out there? Any way to do synched visual & audio recording simultaneously?
thanks
Thor
http://www.thorrific.com/

Well I tried to change it but it still doesn't work. If I bang it it still outputs tiffs. I put the relevant parts (especially the message box sending the filetype) into this throwaway attached patch, can someone look at it and tell me what I am doing wrong? I guess I have the stuff in the message box wrong but I can't figure out how to get it right. Can someone tell me EXACTLY what to put in the message box?

http://www.pdpatchrepo.info/hurleur/SimpleTiffWrong.pd

Thanks pulsed! I will try now.

Thanks sunji, I am trying to capture numbered frames for animation, the trouble is pix_write is writing out tiffs and is automatically introducing an alpha channel on the tiffs which is wiping out most of my imagery that is visible in my GEM window.

Thanks for the information, but I'm on a Mac. I will keep trying though.

anybody????

well I still can't get it to work, can anyone help? I tried to do what the help file said (which is rather vague on how to make it change to JPEG in my opinion). Does anyone know?

OK I just installed the new version of GEM that recently came out and now the help files work, so I got it.

Does anyone know? I can't find it in "Ye Olde GEM Manual".

Yes but GEM can produce jpeg files, and I want to know how.

I have a MOTU 828 from year 2000 and it works great with PD and everything else, I love it

sounds like a fun job anyways!

Thank you, those suggestions helped!

Thank you, I will try it right now!

wow it's cool, thank you

Never mind... I think I pretty much got it figured out now. I got a bunch of tiff files on my hard drive. Thanks to Ulrich Kehrer's post on the PD mailing list dated Tue Nov 27 15:02:08 CET 2001:

quote:
"... pix_write has to be the last object of the gem-list (for example you have
to connect the OUTLET of a cube object to the inlet of pix_write)
pix_write's 2nd inlet understands a list of 2 integers which corresponds=20
to the lower left corner of your snapshot (xy position). the 3rd inlet
also accepts a list of 2 integers which is the snapshot's size (xy size).
for example if your gemwin has 640x480 px and you want to grab the whole
win you have send "0 0" to the 2nd and "640 480" to the 3rd inlet. if you
just want to grab a 100x100px area from the center of the gemwin send "270
190" to the 3nd and "100 100" to the 3rd inlet ...
(the messages "vert_pos x y" and "vert_size x y" both to the 1st inlet do
the same as "x y" (position) to the second and "x y" (size) to the 3rd
inlet). was this clear?!?

the snapshots will be saved in the pd/bin directory with successive
numbers as tif files (gemmgem100000.tif).
i didn't find out yet how to tell pix_write a costum place to save the
tiffs and how to change the default name and the starting
number. ...johannes?

with a "metro 40" banging pix_write i grabbed a few seconds with
720x576px at 25fps. it was a patch with 9 cubes spinning around and i
noticed that pd/gem waited with the action until a snapshot was written to
disk. the 5 seconds i "recorded" took about 30 seconds to be saved. i then
got a 125 frame tiff-sequence with a smooth movement just like in the
gemwin. that's cool! can anyone explain this behavior?

cheers,
ulrich

..."

Go to Preferences > Audio Settings
then choose your built-in-audio or whatever device you use
I have noticed that when I use my isight with GEM, PD sometimes defaults to use it as input AND output (!)
try that and I bet you will be ok