Sound Analyzer App

★★★★★ The app is great for my purposes. In my application, maximum SPL reaches approximately 88db which the app handled easily. I recommend it for lower SPL, non-professional uses. Additionally, I plugged a calibrated microphone into my S20 and used the spectrum analyzer with a pink noise audio track to flatten the response of my vintage Kitsch Forte II loudspeakers. What a difference! Get it for that if nothing else.

★★★★★ This app does EXACTLY wHAT IT PROMISES, my phone had gotten and cracked good at the bottom corner, so my scréen started jumping in constant flicker, but this app corrected ALL Sound analyzer just as potent

★★★★★ Excellent! Exactly what I was looking for! I love that it has both a spectrum analyzer and an SLM graph that shows the minimum and maximum levels of the global noise!

★★☆☆☆ I'm not even sure what they're trying to display? I see no application at all for this or many of these so-called sound tools. None seem to work properly or have the tools to accomplish anything correctly. When compared to my AZDEN EQ with built-in RTA Pink noise and pure tones, using a microphone running back into the EQ and adjust my active xover I can see the band widen or lessen as I adjust it. This app shows general random loudness close to 2 octaves at best, good for kids not usable for me

★★☆☆☆ Fatally flawed as it doesn't allow you to select a microphone source. By default, Android seems to send a processed signal that compresses loud noises (or boosts quiet ones) -- you can see this in action by playing a loud test tone after silence, as the reported level will quickly drop as the processing recalibrates. Every modern Android device I've owned, however, also has the option to select an unprocessed audio feed, so long as the app asks. A dark mode would be most welcome, as well.