Spectrum Audio Analyzer
Spectrum Audio Analyzer 4.0 for Mac can be downloaded from our website for free. The software lies within Design & Photo Tools, more precisely Viewers & Editors. This free software for Mac OS X was originally created by Music Paradise.
From the developer:
Spectrum Analyzer is a cool tool for working with sound anywhere. Spectrum Analyzer always provides accurate results. This app features cool tools for working with acoustics and sound, an accurate multi-spectral harmonic analyzer, a noise meter, detailed graphs, and some great-looking visuals. Its simple and comprehensible interface makes the measurement process fast and easy.
You may want to check out more software for Mac, such as Easy Audio Converter for Mac, M-Audio FireWire Audiophile or M-Audio Revolution, which might be related to Spectrum Audio Analyzer.