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A simple spectrum analyzer, which calculates FFT of the signal coming from your device's microphone.
It enables selection of resolution and calculation speed.
It shows peak amplitude, peak frequency and resolution.
Also, there is a calculation time indicator which you can use for testing speed of your Android devices.
What's New in the Latest Version 1.2
Last updated on May 4, 2016
Minor bug fixes and improvements. Install or update to the newest version to check it out!
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ABC Spectrum
1.2 by ALAB
May 4, 2016