Sound Card Spectral Analysis

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.

See http://iheartmatlab.blogspot.com for further details.

Cite As

Rodney Thomson (2026). Sound Card Spectral Analysis (https://www.mathworks.com/matlabcentral/fileexchange/20541-sound-card-spectral-analysis), MATLAB Central File Exchange. Retrieved .

Acknowledgements

Inspired: Sound Card Spectral Analyser GUI

General Information

MATLAB Release Compatibility

  • Compatible with any release

Platform Compatibility

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

Updating for compatibility with Matlab R14 SP2 (Possibly older)