This program makes a sound like a vibrating string. This is a sample sound it made. You can control various parameters of the sound and it outputs the result as a wave file. If you want to try it out, run it with the --help option to get the usage.

It's not very good at all. I've learned that there are much more sophisticated ways of synthesizing these sorts of sounds. I didn't set out to make a good syth, though. Basically, I just found a differential equation that describes the vibration of a string, and I wanted to see if I could make something that sounds like a string using nothing but that equation. Well, I can. That was fun.

In case you are curious, the differential equation I found is

My program simulates the string by using finite differences with the differential equation and then just takes the height of the string at some spot (the pickup) at regular intervals to be the samples.