# Is the Auditory Spectrogram the same as the Magnitude Spectrogram?

This is in the context of speech signals. The magnitude spectrogram is computed by framing the signal into short time windows, applying a hamming (or similar) window, computing the fft over each window, and taking the absolute value of the complex numbers obtained. I came across the Auditory Spectrogram in a paper and several toolkits (http://amtoolbox.sourceforge.net/amt-0.9.5/doc/general/audspecgram.php, http://www.isr.umd.edu/Labs/NSL/Software.htm). Do they refer to the same thing? Or else, how is the auditory spectrogram computed and what are the differences between the two representations?

The first source you provide contains this image as an example output of the function audspecgram():