Like the infinite monkeys typing Shakespeare, but with audio instead.
If there was a program that created a series of sounds at random intervals, pitches, amplitudes, etc., how long would it take to produce an output that sounds like music, some sort of recognisable recording (e.g. a bell ring, a dog barking), or perhaps even a human voice?
Not necessarily. Roll a twenty-sided die twenty times, and you’re not guaranteed to roll every number.
Roll an infinite-sided die infinity times, and there’s no guarantee either.