Convention Paper
On the Performance of Two-Channel and Multi-Channel Stereophony
AES Convention 88 · Paper 2887 · March 1990
Abstract
Psychoacoustic principles are considered in order to enhance the performance of loudspeaker stereophony. It is found that the simulation of depth and space in a conventional two-loudspeaker stereo arrangement can be optimized by means of the so-called room-related recording technique, which applies natural interaural signal differences instead of pure intensity or time differences for stereophonic imaging. However, for creating the natural perception of spatial impression and enlarging the listening area at the same time, additional loudspeakers must be applied. The benefit from additional front channels and surround channels of a future HDTV sound system is discussed not only with respect to picture accompanying sound but also with respect to high-quality sound without picture.
