I made this patch with the intention of creating a set of audio effects that could be incorporated into some form of sound, whether mp3 or live, that could be mostly controlled by LEAP using hand gestures.
In its final form, the patch I made controls reverb, a multi-voiced vocoder, and an LFO that controls the amount of pitch bend the incoming audio receives and how fast it shifts. The patch is slightly finicky in that you need to activate the LEAP data in all the sub-patches before audio will come through. Parts of the sub-patches are patches I found online or in tutorials, but all the LEAP data tracking is my own. I also decided to use Luis Fonsi’s Despacito since we used that in class several times.
When first opened, the patch contains two different input options, a hand tracking toggle, and access to the sub-patches that contain the individual effects. The mp3 is by far easier to work with. The adc~ works, but not as effectively as I would have liked.
Once you decide the input and hit the desired effect’s number key, you can open up the corresponding sub-patch.
The reverb patch is fairly straight-forward. It uses the reverb patch found in max > help > examples. The hand gestures directly effect the basic parameters of a reverb effect. The most noticeable are the Decay and Size, while the Diffusion and Hi Frequency Cutoff are more subtle.
The vocoder is names after Gir from Invader Zim. The dry/wet part of the patch is from – https://www.youtube.com/watch?v=mi9CjZxk8zs and the vocoder effect is from – https://www.youtube.com/watch?v=4feOFLX6238. I used these because both were easily controlled by the LEAP data, while other pre-made versions required the mouse to control the various parameters.
Lastly, is the LFO device. The base effect of this is loosely based on this video – https://www.youtube.com/watch?v=uyzY_ZP54pA. However, I altered it in order to get a different effect. I was trying to replicate an effect I had heard from a soundtrack, but I ended up getting more of a whammy bar/warbly effect.
Overall, I am very happy with this. It is very fun to use, and can be very easily modded to control different effects or to add new ones. I am planning on continuing to work and develop this because I think it could eventually turn into a very useful tool, and I think this is a very good point to be at for the first iteration.