Showing the amount of masker which contributes to the masking of the tone signal - known as critical bandwidth. Energy outside the auditory filter does not contribute to the masking of the tone signal. Adapted from a diagram by Gelfand (2004)
Own work based on: Maskercriticalbandwidth1.jpg  and Maskercriticalbandwidth1.jpg
Leahw86, traced by Stannered