an instrument:
a drum
This is simple. All I did was change the frequencies of the different oscillators. By doing so I was able to create a mock of a drum.
However, I need to know how to smooth it out. Meaning I need to learn how to control attack/rise, display, sustain, and
release times to make it sound more realistic.
some sound
boat engine
This is very simple. As a result what we have is a mock of a boat engine.