dbMETER!

dBMETER is the most easy to use and best looking decibel meter in the app store. Turn your iPhone into a professional sound meter for free. Features:- Intuitive design- Easy to use- Clear and simple start and stop feature- Record and export recorded data to email, Facebook and Twitter- Display average, peak and max values- Covers up to 120dBConsiderations:- 2nd generation iPod Touch does not have a built in microphone and therefore in order to use dBMETER, an external microphone is required