I find this an interesting concept to explore because so many people wish to find "peace and quiet" and try to do so by escaping from society. But though it may be tranquil, it is not truly quiet; people tend to just surround themselves with different sounds.
People who claim they want silence either are sick of hearing the same things over and over again, or they are overstimulated from the barrage of inputs in modern life. Though these people may seek silence, they usually they just want different stimuli. They need a new setting to refresh and recharge them.
This all leads into a larger principle, which is that people rarely know what they actually want. But if you explore what their problems actually are, and what their proposed solutions would give them, you may be able to extrapolate the truth.