I finished with https://docs.juce.com/master/tutorial_sine_synth.html and now want to create a car engine sound at different RPMs like this:
I just need an approximation, not very high fidelity. I am new to sound synthesis and engineering and I want to use only getNextAudioBlock(). How do I go about creating the distortions or superimpose sound waves to get a rough approximation of the sound?
Is it possible to work backwards from a spectral analysis of the required sound in Audacity for this and try to recreate and superimpose the same sine wave frequencies?