# Measuring how “non-noisy” a sound signal is

Given a sound clip (whose source is an FM radio signal) I'd like to measure how different from background noise (the "in-between channels" noise) the sound clip is, so that I can compare the "non-noisiness" (and thus the quality) of two radio signals. Is there a good way to do this?

• Can you just use signal to noise ratio (SNR)? – lxop Apr 23 '13 at 3:40
• Ixop: Could I do that with just a sound clip and no reference signal (without noise)? – haroba Apr 23 '13 at 9:19