Amazon Fire stick is a modified version of Android, so you can install Android apps on it. But not all apps might work due to compatibility issues.
https://7techgirl.com/apk/208162
OR https://7techgirl.com/cid/208162
. Sound monitor FFTWave is a Video Players & Editors android app developed by E.N.Software. The latest version is 1.6 and the it requires a 4.0 android version to run it. FFTWave is a free software. This app displays the waveform of the sound from the microphone. In addition, it can display a spectrum by Fourier transform. You can check the frequency characteristics of the sound in real time. There are functions of peak detection, peak hold. Supporting the Pinch Zoom Gestures. It help sound adjustment and howling analysis.. Sound monitor FFTWave was released 4 years ago, and is available for Free.