[free?] software for amp FR and Distortion measurements? - diyAudio
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Old 26th March 2015, 08:07 AM   #1
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Join Date: Dec 2013
Default [free?] software for amp FR and Distortion measurements?

Apologies if this has been covered before.

I just finished building my first valve amp and need to do some measurements now. I tested my amp at work (and it did not explode etc ) but all testing equipment is at one work site which is 300 km from my home. So I was thinking to get 4 channel data acquisition box for PC and use software to produce excitation and measure output.

Any advises about software needed?

AFAIK for testing, necessary input signals are 1V sine or square, output measurement are frequency response, THD and distortion profile
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Old 26th March 2015, 11:26 AM   #2
skidave is offline skidave  United States
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Location: York, Pennsylvania
Search in this section (Equipment & Tools) using key words ARTA for one search and QA400 for another search. All the information you need is here, just need to read a bit...
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Old 26th March 2015, 03:12 PM   #3
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Try the free Visual Analyser. Some good threads here and lots of info on the designer's site (if you can read Italian!). E
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Old 27th March 2015, 12:14 AM   #4
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Join Date: Sep 2004
Location: New Zealand
Hopefully this is not a distortion of the phrase "free software" Free software is software that
respects the users freedom, is free to use, copy and distribute,study and modify the source code, and publish new versions of that source code if required, it is the opposite of proprietary software explained here:


There are many software packages available that are free software such as geda, oregano, debian science electronics packages,and Fedora do a complete operating system dedicated to electronics About Spin: Fedora Electronic Lab

Cheers / Chris
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