how to offline or non-realtime render an iTunes Visualizer

boyfriendacademy's picture

I'm trying to turn some of my original songs and remixes into music videos by using music visualizers.

The screen capture method using Snapz Pro X to record an iTunes Visualizer isn't producing great results for me. I've tried tweaking the settings but my trusty old MacBook Pro just isn't capable enough to both simultaneously render and record 30fps 1920x1080. Here's the best I was able to achieve, at 1280x720:

So I started looking into offline or non-realtime solutions and came across Kineme Audio Tools. I've looked over the examples but I haven't been able to figure out how to take a Quartz Composition that's designed to be a realtime iTunes Visualizer (for example, the Jelly visualizer that comes with iTunes) and convert it to a non-realtime visualizer using the Kineme Audio File Input. Can it be done? I'm not a QC expert, so any help would be greatly appreciated.

And instead of using Quartz Crystal, I was thinking about trying the Quicktime Pro render method as described here: just because it seems easier.

I don't necessarily need the audio track included the rendered file. I can add the audio later through Final Cut Pro.

Pursuing a non-QC route, I was able to find a cool offline audio reactive visualizer done in Processing by visual artist Pedro Cruz that rendered a sequence of PNG images that could then be combined into a video using Quicktime Pro "Open Image Sequence". This method allowed me to create a beautiful 1920x1080 video at 30fps. Because it's highly-detailed, I rendered and edited it using the ProRes 4444 codec. Unfortunately, YouTube's h264 transcoding doesn't really do it justice, but you can get the idea:

Any QC or Processing artists out there that would like to collaborate with me on more music video projects like this? Right now I have about 5 more tracks I'd like to turn into videos.

3D Particle Waveform (Composition by dust)

Author: dust
License: MIT
Date: 2010.10.18
Compatibility: 10.6
Required plugins:

this patch generates 3d particles from the waveform of kineme audio tools.

inspiration and credit goes to t-link....

Quartz Composer Visualizer scaling problem

apple pi's picture

Hello everyone, I have this composition that I want to span through 2 monitors. There are lots of animated image buttons, that are in real size setting in the billboard patch. But when I use the QUARTZ COMPOSER VISUALIZER , it scales up every image on screen, when it stretches to both monitors. What can I do to avoid this unwanted scaling? Thanks in advance

Audio Spectrogram

LuxAqu's picture

Ok I'm very new to Quartz Composer but I've been trying to find a way to create a visualizer that maps the octaves of sound directly to the visible spectrum. This is based on the idea that the visible spectrum is essentially one octave of electromagnetic radiation. More about that theory here:

Thanks to AudioTools I was able to get a decent resolution for the frequency spectrum, but being a noob I ran into a lot of technical problems that I didn't understand (with particles and iterators and render in image patches...) Plus I wasn't sure how to best capture the composition in action. In any case, I finally have something to show:

reactive dance 4VJS (Composition by dust)

Author: dust
License: (unknown)
Date: 2009.07.25
Compatibility: 10.5
Required plugins:

so this is an audio reactive multiplexed dancing fbx blend animation. this started out as a blend shape walk cycle for 3rd person control, but ended becoming a visualizer reactive type of piece. enjoy....4vjs