Sound Card Spectral Analysis

Acquire data from soundcard and plot in time and frequency domains

Description

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.

• Acknowledgements: This submission has inspired the following:; Sound Card Spectral Analyser GUI
• MATLAB release: MATLAB 7.0.4 (R14SP2)
• Other requirements: Windows platforms only (constrained by 'audiorecorder')

[Erdal Bizkevelci]