Apps similar to Friture include Simple Audio Sweeper, which is free and open source. Other options are SignalView, Audio Spectrum Analyzer, WaveSpectra and Spectroid. You can choose from more than 10 apps like Friture for Windows, Linux, Android and Mac.
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.
TrueRTA's audio spectrum analyzer software shows you a detailed picture of what you're hearing in real-time, that is, as it happens. You can create your own professional measurement system starting with TrueRTA software on your PC.
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