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Last update: 2012-11-18
Fransys—Frequency Response Analysis


Fransys is software for accurately measuring the frequency response of audio equipment using a computer's sound card. Fransys can be used to measure all sorts of devices – speakers, headphones, sound cards, amplifiers, electronic circuits, etc. Fransys is free for non-commercial use. A sweep of sine waves is produced and played through the equipment under test. The equipment's output is then recorded and measured. Fransys measures both the amplitude and phase of the tones as the frequency varies. Experiments show that an old PC running Fransys can match expensive lab equipment to within 0.2% average error. For more information please take a look at the manual.




Fransys is available in executable form for Windows. For other platforms, you can download the source code and build it with an ANSI C++ compiler. You can also download the documentation or view it online.

DescriptionDownload ZIP
Fransys 1.0 Windows Executable Download 72KB
Fransys 1.0 Documentation Download Download 28KB
Fransys 1.0 Documentation - View Online View Now
Fransys 1.0 Source Code Download 28KB

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©2012 Chad Berchek - everything here unless otherwise noted