My goal is to convert some numbers into audio file and then store them into a .wav file.

Is it as simple as this? Another question I have is, what's the difference between snapshot and vsnapshot?

You could possible just write some values to an array and save them as a text file or something, and then open that file in Audacity as raw input and save it from there...

I guess you could use [writesf~]. The image you've posted doesn't work?