Generating an Exact Muscial Note

Is there any way, using Unity/Fmod, to create an exact note? With pitch, frequency settings etc.
Somewhat pessimistically, I’m expecting the answer to be no. Then what do I need to do to make a tool which does that? And will I need pro?

Use an audio editor for creating a tone with a known frequency, let’s say 1000 Hz. You can then use the pitch property of the AudioSource for achieving the frequency you want. If you need 440 Hz you can get it by setting pitch = 0.44 to your base tone of 1000 Hz.

Edit: no need for Pro for this method.