iSpectrum is an easy to use audio spectrum analyzer that allows the user to view live audio in a standard frequency plot, a stereo oscilloscope view and a waterfall display. The user can adjust the display resolution, center frequency and save images to disk.
Features:
Audio spectrum analyzer.
Spectrum Display.
Waterfall Frequency Display.
Oscilloscope View.
6 User selectable bandwidth resolutions.
User selectable center frequency.
User selectable input gain.
Works with built-in, system and USB microphones.
Displayed images can be saved to disk.
Point-and-click frequency marker.
Auto centering of marker frequency when switching bandwidth.
Choice of FFT window functions.
User selectable sample averaging.
Requirements
Mac OS X 10.3 and higher.
Audio input device.
iSpectrum Analyzer is FREE but unsupported.