gudy said:Here's the backup sound ... the audio quality doesn't make justice to the real beauty of the sound (ok, I'm exagerating a little bit, but the sound sounds better for real than in the video).
[youtube]http://www.youtube.com/watch?v=B91OjNFeArM[/youtube]
Gudy - thanks for all your great info. What amazes me is that this backup sound is so soft that those pedestrians who need it the most (the elderly) may not be able to even hear it!