I find it helpful to follow these steps if you’re starting from scratch:
- Learn the basics of how sound works. (google “how sound works”)
- Learn the basic building blocks of subtractive synths and understand how they contribute to the sound (oscillator, filter, amplifier). (google “subtractive synth tutorial”)
- Learn about Timbre and what makes different instruments sound different. (google “timbre” or “harmonics and overtones”)
- Once you have those basics down then start to emulate basic sounds like flutes, cellos, brass, etc. (the SOS synth secrets articles are great for this).
- Once you have those down, move towards more modern/complex patches. You can also break down presets that you like. (pick your favorite synth patch and then look at what each component is doing, then try changing those components to get a feel for what they contribute to the sound).
There’s no silver bullet. I think you just have to practice a lot and learn incrementally over time. Eventually you’ll build up an arsenal of tools and you’ll be able to call on those tools to make sounds you hear in your head.
It could be overwhelming to try and make really complex sounds to start with. So I suggest you start real simple and get a firm grasp on the basic concepts first. e.g. Try and synthesize a trumpet and really understand what each component of the synth is doing and how it’s contributing.
At least that’s what worked for me. YMMV. I’m still learning, I think it’s an endless process, but having the basics down helps.
If you’re interested, I’m doing a series called “Synthesize This!” on my YouTube where in each episode I go over synthesizing a patch of some kind. Currently it’s all on the Pro 2 but I think the general concepts are transferable to other synths as well.
Here’s the playlist: Synthesize This! Playlist on YouTube.
Good luck and don’t give up! Just keep working at it one little step at a time.