Wow, note the great innovation here on the CNN HD screen in its coverage of the Democratic convention:
Look closely, that's right, they put a "sound from the floor" dB (?) level meter. And, it's in STEREO!!!!!
Is this useful information for anyone? At least if they put a dB SPL scale on it us audio geeks might find it interesting. What's next, temperature? Humidity? Pheromone level?