Synthesized Multichannel Signal Levels Versus the M-S Ratios of Two-Channel Program Items
Francis J. Rumsey · Surrey Research Insight Open Access (The University of Surrey) · 1998
Multichannel surround synthesis algorithms derive a center channel and rear channels from a two-channel source, so that two-channel programs can be replayed over five loudspeakers. Typical two-channel programs were analyzed to determine their sum-and-difference (MS) ratios, and a test signal with controllable MS ratio was used to examine the static behavior of selected 2-5 processing algorithms.