ISOSTEM USER MANUAL
System Overview 13
The "ISO" module calculates the difference between an internal stereo
downmix of the upmixed 5.1 surround signals and an external stereo refer-
ence signal. Controlling the signal in the frequency domain, ISO takes care
of the following additional tasks:
·
Assures compatibility by injecting the "intermix" signal
(L-R-C-LS-RS)
·
Phase correction of the L/R front and rear channels (L-R-LS-RS)
·
High-frequency attenuation for the rear channels (LS - RS)
·
LFE channel management
