I've been trying to find them for a bit, but the only info I can find is from this post in 2008: https://forum.image-line.com/viewtopic.php?t=17313
Scott wrote:The bleep was chosen 'winner' after a long thread where many users submitted entries. Gol selected it because
1. The original BOOM was scaring neighbours & splattering speaker cones all over the place.
2. It had to be something short and that would not get annoying after repeated exposure.
Unfortunately it was on the old forums, so I can't link it here.
I'm planning on using a recording that includes the current startsnd.wav in a track, and I'd like to give appropriate credit. Gol? Scott? Anyone?