ITC Spectrogram Software Review
by Keith Clark

Software Reviews
During initial spectrogram experiments the following software programs were reviewed:

Spectrogram v.15 by Visualization Software:   Website link
Cost:  10 day trial / $29.95 purchase
Knowledge level:  Beginner - Intermediate
Settings / Options:  Satisfactory for ITC work
Accuracy: Medium
Advantages: Most successful experiments so far. Easy to use, not difficult to change settings, ability to save audio files or high quality images from the software directly, lowest priced software with functionality.
Disadvantages: Accuracy of repetition, duplication of looped audio files is not perfect.

SpectraPlus 5.0 by Pioneer Hill Software:   Website link
Cost:  30 day trial / $295
Knowledge level: Advanced/Expert
Settings / Options:  Excellent, but difficult to configure
Accuracy: High
Advantages: Accuracy is assumed, providing an individual has the expert knowledge required to tune the software. I am not one of these individuals.
Disadvantages: Cost, advanced knowledge required, I had extreme difficulties while attempting to change the length of time displayed on the graph. I figured the rest out, but was attempting to modify the graph to display a specific real-time interval of specified seconds, and was unsuccessful.

Sound Software Spectrograph by Sound SoftwareWebsite link
Cost: Freeware
Knowledge level: Beginner
Settings / Options:  Poor, very limited
Accuracy: Low
Advantages: It’s free, easy to use.
Disadvantages: No ability to take screenshots, no ability to change the viewing size of the graph, horrible colors and clarity. Not recommended for use other than becoming acquainted with what a spectrogram is.
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( I have no affiliation with any of these software vendors. This review is meant to give you an idea of where to start when attempting to receive images through spectrograms. If someone finds an alternative low-cost alternative spectrogram software program with high accuracy, please let the ITC community know.) I also sampled approximately 6 other spectrogram software programs with unsuccessful results.