iSpectrum Analyzer is a simple and easy to use audio spectrum analyzer that allows the user to view live audio in a standard frequency plot as well...
It can analyze sound data. It displays oscilloscope, spectrum and sonogram.
Spectrum Analyzer is a cool tool for working with sound anywhere.
Provides a number of signal generation & analysis tools with simple interfaces.
An open source ZX Machines Emulator for Unix, including ZX Spectrum.