Goodbye Mr. Burton
This sounds like a neat idea. Maybe I'll make an MP3 file. However I disagree with waiting for the bell to stop to begin trading. I think as soon as people hear it, they'll want to start. I'd also want it to be that as soon as it rings, people have to stop. Since the video has the clapping sounds as well, if that's loud enough to be heard, then people will know that the bell is about to ring.
That would be great Brian! I also wondered if there should be some sounds between the two bells, like a muffled group of traders. But not so loud as to be a distraction to the real trading that would be going on. Honestly that might be pointless since its only 2 minutes long.
Let me know if you could use my help in creating it!