FM in Modular: Types, Patches, and Tips

How do you patch frequency modulation (FM) in a modular? What are the differences between exponential, linear, and through-zero FM? How do you deal with pitch shifts when increasing the FM depth? What happens when a VCO frequency-modulates itself, or is patched in a feedback loop? All of that is explained in this movie. (For more details, subscribe to patreon.com/learningmodular and view the post:   / basic-concepts-86505446  )

index:
00:00 introduction
Exponential FM
00:29 patching exponential FM
02:07 varying modulation depth
02:48 frequency modulation explained
03:22 tuning ratio between modulator and carrier
04:28 changing source waveforms
05:00 pitch shift with exponential FM
05:53 tuning challenges with exponential FM
06:55 sync and FM
08:09 enveloping modulation depth
Linear FM
10:56 how linear FM works
11:38 varying modulation depth
12:06 pitch shift with linear FM
13:09 AC coupling to improve linear FM
Through Zero FM
15:11 how through zero FM works
17:18 enveloping modulation depth
17:59 changing waveforms
18:30 tuning ratio
19:35 FM summary
Feedback
20:40 self modulation
21:06 cross modulation