I would like to make a YouTube video that has a music visualizer on it (like in Monstercat videos), but I don't want to have to pay for After Effects. Is there a free way to do it? I know I can get the trial, but I want to be able to use it more than 30 days from now. Also, I'm using OS X, so whatever it is can't be Windows only.
A free alternative for After Effects is Jashaka. It runs on every plattform and has some decent features. While it wont have the comfort of after effects for creating such an effect its certainly possible.
If you just don't want to spend all that much but still willing to pay a small price you can go for Apple Motion which costs 50$ and is a fairly powerful tool for animation and motion graphics for the price. https://www.apple.com/final-cut-pro/motion/
Also here a tutorial on how make something react to music in Apple Motion: http://www.larryjordan.biz/motion-5-make-audio-move-video/
I personally have not worked in detail with both software so I can not give you guidance for actually creating the animation, expect for this tutorial.
According to the this article, iTunes has a music visualizer. You would still need to get screen recording software (unless you want to point a camera at your monitor!). I'm sure that someone has asked about free screen recording software on this forum somewhere.
Another idea would be to use something like Fraps or some other screen capture or screen casting utility to capture the playback of a visualizer in a music player of your choice. The exact combinations of software to use would likely depend on your choices in music player though.
I know Fraps will only work with ones that are DirectX based.
Processing can do it, if you're not afraid of Java. There's a demonstration processing sketch that comes included with the application that does a frequency spectrum bar graph. It's relatively easy to save the output of a processing sketch to a video file. And it's free.
For simple music visualization videos for YouTube, you could check out https://www.musicvideodispenser.com.
It automatically generates a finished video based on an mp3 file you provide.
Disclaimer: I'm one of the creators of the service.
A free Alternative for After effects(for audio spectrum like in Monstercat)
would be Sonic Candle.Its an open source project.You will need Java version 8 or higher in order to run.Best feature is the customizable bar visualizers.
Quick & Easy
- No export option
- You will need an extra monitor or you will have to hide all the icons when streaming or monitor capturing(The only choice)
Recommended: You can Screen capture the rainmeter(Saves time than rendering time in AE).
You have a foobar window design with a visualizer on the bottom.
The gradient on the bars is black to white.
Afterwards in editing you change the Hue and Saturation of the visualizer and trim out what you don't need. If you want something really small, you can also use the visualizer at the very top the foobar window.