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Second Order Amplitude Modulated Noise

version (1.49 KB) by Nike
Generation Second order amplitude modulated noise as described by Lorenzi(2001)


Updated 02 Oct 2012

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Second order modulated noise is used in psychoacoustic experiments of amplitude modulation detection. It can be used to derive the second order TMTFs of a person.
The signal here is generated by multiplying the noise with a rectified amplitude modulated sine wave.

Cite As

Nike (2020). Second Order Amplitude Modulated Noise (, MATLAB Central File Exchange. Retrieved .

Comments and Ratings (4)


This submission was not intended to modulate a wav file with another wav file. This was merely programmed to generate a second order modulated signal for psychoacoustical experiments.

If you want to modulate a signal using a noise file

use the following equation:

modulatedsignal = (1+noise).*signal;

P.S.: If you do not know how to implement the above equation in matlab, put in a reply and I'll walk you through. Also, it would help to know which stimuli you intend to use




How can i use this to modulate a clean wav file with a noise wav file


If you find this content useful, Don't forget to cite this content as follows

Gnanateja, G. N. (2012). Second Order Amplitude Modulated Noise., Matlab Central File Exchange. Retrieved on dd-mm-yy

MATLAB Release Compatibility
Created with R2012a
Compatible with any release
Platform Compatibility
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