sound driven effect?

Become a member of the CGSociety

Connect, Share, and Learn with our Large Growing CG Art Community. It's Free!

THREAD CLOSED
 
Thread Tools Search this Thread Display Modes
Old 10 October 2002   #1
sound driven effect?

Is there a way to control the opacity
or blur effect on a layer with a sound?
(a heart beat)
 
Old 10 October 2002   #2
yep. if you have the PB version you can use motion math.

just add motion math (under animation>keyframe assistant) to the layer whose opacity you are effecting.

then on the pop-up window choose "load" and load the "layeraudio.mm" file.

you'll see two rows and three columns. in the first row selesct your layer and the opacity property.

on the second row select the audio layer. then in the script window set your min and max values at the bottom. it will bake keyframes for the whole thing.

if you are using the standard bundle there is probably a way to do it using expressions. look at www.creativecow.net for a possible tut.
 
Old 10 October 2002   #3
Thx for the tip!

I just tried it and it seems to take a ridiculous amount of time to render... for about 30 seconds of the music and one layer being blurred by motion math control Comp size: 640*480 it was taking about 1 minute per frame! whats up with that? The samplerate mybe? of the MM?
 
Old 10 October 2002   #4
bizarre. i couldn't tell you why it was taking so long to render. did you try clearing your image cache before rendering? also, did you close the composition window? it takes more ram to display your comp while its rendering.

my suggestion would be to see if you can do anything via the expression route since it won't set keyframes every frame, OR

since it's only a hart beat you could very easily do it maually by twirling down the audio and looking at the wave form. if the heartbeat is fairly regular then you'd only have to set the keyframes once then just copy and paste down the timeline.

if you do find a way to do it with expressions please pot it here! i'd be interested to see what you come up with.
 
Old 10 October 2002   #5
You should check out the sound keys plug in from TRAPCODE.

www.trapcode.com

It should be alot faster than Motion Math and it offers more control.
 
Old 10 October 2002   #6
nice plugin.

shine rules too.

thanks for the info!
 
Old 10 October 2002   #7
yeah, soundkeys is absolutely rockin. cheap too!!! trapcode need to do more plugins! never tried to use motion math tho so will give it a shot now!!
 
Old 10 October 2002   #8
traocode

yeah! trapcode its very nice, they only have 3 plugins, and the 3 plugins are the best, i have purchase shine, and i will buy another plugins... it's so sheep

__________________
Daniel Monguilhott
danielmonguilhott.com
 
Old 01 January 2006   #9
Thread automatically closed

This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.
 
Thread Closed share thread



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
CGSociety
Society of Digital Artists
www.cgsociety.org

Powered by vBulletin
Copyright ©2000 - 2006,
Jelsoft Enterprises Ltd.
Minimize Ads
Forum Jump
Miscellaneous

All times are GMT. The time now is 10:49 PM.


Powered by vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.