Sound Card Spectral Analyser GUI

Acquire data from soundcard and plot in time and frequency domains

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Acquires buffers of data from the system default sound card, calculates the power spectrum of the data and plots this along with the raw sampled data to screen.

Useful as a quick and dirty (and completely uncalibrated) audio frequency spectrum analyser.

Extends previous function (http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=20541) into a Matlab Class.

The GUI uses an instance of this class.

See http://iheartmatlab.blogspot.com for a detailed run-through of the code and the programming techniques utilised.

Cite As

Rodney Thomson (2026). Sound Card Spectral Analyser GUI (https://www.mathworks.com/matlabcentral/fileexchange/20721-sound-card-spectral-analyser-gui), MATLAB Central File Exchange. Retrieved .

Acknowledgements

Inspired by: Sound Card Spectral Analysis

Categories

Find more on Audio I/O and Waveform Generation in Help Center and MATLAB Answers

General Information

MATLAB Release Compatibility

  • Compatible with any release

Platform Compatibility

  • Windows
  • macOS
  • Linux
Version Published Release Notes Action
1.0.0.0