RTA Audio Analyzer is a free Android application developed by RadonSoft that turns your phone into a professional audio analyzer. It supports one, 1/2, and 1/3 octave filter and calibration, and displays overall Peak and RMS value for acoustical measurements. With this app, you can measure the frequency response of your audio equipment and identify tones and noises.

The app has a user-friendly interface that makes it easy to use for both professionals and beginners. The app is perfect for musicians, sound engineers, and anyone who wants to analyze the sound quality of their audio equipment. The bugs and other related issues can be reported to the developer at