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Calibrated Spectral Analysis

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Calibrated Spectral Analysis



15 Nov 2007 (Updated )

Simple Fourier Spectral Analysis of sound pressure time record.

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Perform Calibrated Spectral Analysis. Use mic_calib to calculate the calibration factor. Multiply the time records by the calibration factor and process the time records with pressure _spectra. pressure_spectra is the main program and allows the user to input the bin_size, number of averages, sampling frequency, and has options for maximizing the number of averages and forcing the bin_size to a factor of 2.


Octave, Spectral, and Moving Averages / Moving Median Etc inspired this file.

Required Products Signal Processing Toolbox
MATLAB release MATLAB 7.11 (R2010b)
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28 Sep 2009 1.1

Improved A-weighting filter characteristics.

19 Feb 2011 1.2

Removed the running average. Updated comments.

20 Apr 2011 1.3

Fixed bugs in examples. Updated Comments

28 May 2014 1.4

Fixed a bug in the error handling of out of frequency tolerance calibrators. Now a warning message is output and the tolerance range is extended to 20 percent.

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