Apps similar to Simple Audio Sweeper include REW, which is free. Other options are AUDio MEasurement System, Audizr, ARTA and Friture. You can choose from more than 10 apps like Simple Audio Sweeper for Windows, Linux, Mac, Android and iPhone.
iSpectrum is an easy to use audio spectrum analyzer that allows you to view live audio in a standard frequency plot, a stereo oscilloscope view and a waterfall display.
You can adjust the display resolution, center frequency and save images to disk.
Real-time audio spectrum analyzer with reasonable frequency resolution across the the entire frequency spectrum.
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