Muff's Modules & More

lizlarsen · Posted: Fri Feb 10, 2012 9:05 pm Post subject:

Photo from the workbench, we're very close on these.

Matos · Posted: Fri Feb 10, 2012 9:09 pm Post subject:

Video synth porn!
Looking good brother Lars!

jjr · Posted: Thu Feb 16, 2012 12:37 pm Post subject: question

hey lars
will these modules :
LZX 2012 Production Cycle #3, Video Input
be for getting a second stable video signal into the LZX with out synch gen?
Like if I had two DVD players and these modules could I mix both DVD's together ?
thanks
jjr

lizlarsen · Posted: Thu Feb 16, 2012 1:26 pm Post subject:

jjr · Posted: Thu Feb 16, 2012 3:10 pm Post subject: question

lars
if I was only interested in mixing two separate B/W dvd's would this still be the best way to go ( if I dont want to mess with synch gen out side of LZX modules) or would you suggest something else like 2 VSG?

lizlarsen · Posted: Thu Feb 16, 2012 3:16 pm Post subject:

Well 2 VSGs won't really do anything for you. No time base correction occurs there, so the two VSGs would be out of sync with each other... and if one is sync'ed to the other, you still can only have one external "master" video source.

You could do one CVD&FS and one VSG if you want two black & white sources. It's just that the CVD&FS is going to have a ton of features you aren't using in this scenario.

Here's a trick that may work for you though... when you're preparing your DVD to be burned, mix up to three separate B&W video sources together using RGB channels (one image is red, one is green, one is blue, all mixed to one video output) and burn the DVD that way. Then when you play this DVD into CVD&FS, you can use the RGB outputs as three separate video sources! That way, with one CVD&FS and VSG, you could get up to four external source feeds to mix and manipulate inside the system. Does that make sense?

This works great when using VJ software as a source too, since you can usually easily manipulate the color channel information of each feed sent to the output.

johnnywoods · Posted: Thu Feb 16, 2012 3:28 pm Post subject: Re: question

you could also get a dvd player with external sync in, although they tend to be on the expensive side.

jjr · Posted: Thu Feb 16, 2012 3:34 pm Post subject: ok - one more

so with CVD&FS and one VSG you can mix to B/w dvd's together - but you'd be way under utilizing the module ?
I think I just dont understand the CVD&FS or what it does. One function ( I think) is that it can take a color dvd and break it into three separate color channels that can then be patched into an LZX rig eventually finding there way back to the CVE ? OR is it ment to be a possible alternative to getting signals in and out of the lzx? do you still need a CVE and VSG if you own the CVD&FS?

thanks
lars

lizlarsen · Posted: Thu Feb 16, 2012 3:43 pm Post subject:

jjr · Posted: Thu Feb 16, 2012 3:47 pm Post subject: AH !

I understand - thanks lars !

lizlarsen · Posted: Thu Feb 16, 2012 3:48 pm Post subject:

I'm sorry, I don't think I answered this question correctly:

daverj · Posted: Fri Feb 17, 2012 1:04 am Post subject: Re: question

lizlarsen · Posted: Fri Feb 17, 2012 1:43 am Post subject:

Interesting -- I hadn't even looked into genlocking DVD players before. I'll have to add that model to the wiki for sure.

jjr · Posted: Fri Feb 17, 2012 10:39 am Post subject: dvd synch

hey dave jones ( and all) ,
With the Pioneer DVD-V7400 player - after it is in synch - then would you patch the video RCA signal out directly into the LZX system?

OR do you have to separate the color parts of the image first - when would the 180 degree issue be a problem when working with the LZX ?

thanks
jjr

lizlarsen · Posted: Fri Feb 17, 2012 10:48 am Post subject:

daverj · Posted: Fri Feb 17, 2012 2:29 pm Post subject:

The DVD-V7400 (and the DVD-V7300D for those in Europe or Australia) has composite, S-Video, and Component outputs. The Y output of the component is already a B&W signal. Or you could feed the signals in to Lars' interface and convert the color to RGB. The subcarrier being off 180 degrees wouldn't matter there. It would matter if you tried mixing two color images directly without first converting to RGB.

The Y output of the component output is DC restored, but might be biased wrong for the LZX, so would need a constant DC added or subtracted to feed it directly without going through the interface.

gde · Posted: Sat Feb 18, 2012 3:31 pm Post subject:

I don't know if this has been mentioned in the thread yet, but you can use the amplitude classifier as a sequencer(not its best purpose, but fun nonetheless). The 8 bias knobs are the values of each "step". If you plug in a saw waveform and attenuate it right, it will cycle through the 8 values and attenuating it even more will shorten the step length... of course its more interesting to use other waveforms or inputs, but the saw makes it easy to explain.

Also, you can plug in 8 signals and once again throw a slow signal instead of a video signal into it and select between them. Like the function on the blacet scanner module I guess, but 8 signals.

It's been years since I touched the IP so maybe I didn't explain it right, but there sure is a lot of "easter eggs" to be had by using the modules for audio or CV rates.

jjr · Posted: Mon Feb 20, 2012 11:25 pm Post subject: what does this do?

what does the Sandin IP Differentiator do? can it be used if you dont own any of the other IP modules?
thanks
jjr

lizlarsen · Posted: Mon Feb 20, 2012 11:36 pm Post subject:

jjr

This may be a dumb question but is the IP Differentiator function to help with video aliasing ? or is that something else ?
thanks lars