Thanks to a weeklong survey, an app that measures the noise level in bars and restaurants can now prove what some diners have complained about for years: Bay Area restaurants are too darn loud. In fact, they’re right up there, decibel-wise, with Midtown Manhattan’s. SoundPrint, an iPhone app founded by Oakland native Gregory Scott, incorporates a calibrated decibel meter as well as an interactive, searchable map of businesses with ratings (www.soundprint.co).