An overview of some auditory illusions is given, two of which will be considered in more detail for the application of small loudspeaker configurations. The requirements for a good sound reproduction system generally conflict with those of consumer products regarding both size and price. A possible solution lies in enhancing listener perception and reproduction of sound by exploiting a combination of psychoacoustics, loudspeaker configurations and digital signal processing. The first example is based on the missing fundamental concept, the second on the combination of frequency mapping and a special driver.
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