Measurements Using PC


AsA is a collection of programs for the analysis of audio signals. AsA consist of three programs, that emulates some classical laboratory instruments using a simple full-duplex soundcard. It includes FFT Analyzer, Oscilloscope, Signal Generator, Multimeter.


LabVIEW offers a graphical programming approach that helps you visualize every aspect of your application, including hardware configuration, measurement data, and debugging. This visualization makes it simple to integrate measurement hardware from any vendor, represent complex logic on the diagram, develop data analysis algorithms, and design custom engineering user interfaces.

Soundcard Oscilloscope for Processing v1.3

WaveWatch 1.3 is a full featured oscilloscope SW that uses the signal coming from a standard computer line input as a source. Full featured means that in addition to standard time/amplitude adjustments, it includes channel specific triggering with auto/single mode, frequency measurement, and user friendly time/amplitude measurement marking tool. It's open source under the by-nc-sa license, and cross platform (Win, Osx, Linux).


With this tool you can analyze things like level, stereo perspective, distortion, phase trouble and frequency content. It is mostly designed for musicians, and for working with music. That's why I didn't spend a lot of time adding a scale showing Hz and dB with numbers. You should use this tool with intuition - not as a physics nerd!


This program plots the left and right components of a stereo signal as vectors in such a way that the direction of arrival of the signal can be estimated. This has application to direction finding, or audio phasing checks.

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