SPLMeter shows SPL of the Android's mic signals, and their frequency spectrum. The meter has three speeds: Fast, Medium and Slow. Shows peak envelope and frequency of maximum intensity, and clipping. ISO 1/3 Octave bars and Spectrogram. (If you need a more fully featured RTA, with 1/1, 1/3 and 1/6 octave display, RT60, Noise Criteria, A&C Weighting etc.
SPL and Spectrum Analyser was originally developed by jjbunn and it is listed among the Music & Audio category. The tool has been downloaded and set up by over 5K users and its latest update is dated Apr 24, 2014. This application has the overall rating 3.9 on Google Play.
Get the installation package of SPL and Spectrum Analyser 2.10 that is free and check out users' reviews on Droid Informer. The app is built for Android 2.3 and higher. It's secure to download the app.
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