Adcom GTP-740 - Manual (Page 35)

Based on a psychoacoustic principle called the “Haas effect,” properly implemented rear
channel delay reduces our “acoustic confusion” about the origin of sounds. Rear channel
delay is particularly important with “matrix” surround decoding (Dolby Pro Logic for
example) because even the best matrix circuits “leak” front channel information to the
surround channels.
Center.channel delay compensates for conditions where the two main speakers and the
center channel speaker are at slightly different distances from the listening/viewing
position.
Although discrete delivery systems like Dolby Digital are not as dependent on precisely
calibrated rear channel delay, the GTP-740 follows proper protocol and shifts rear
channel delay settings automaticaliy as you select Pro Logic or Doiby Digital processing.
This will greatly increase your enjoyment of the enormous variety of surround-encoded •
software available today.
From the SETUP screen, highlight CHANNEL DELAYS and press Enter. You will see the following
screen;
CHANNEL DELAYS
CENTER 0 mS
REAR 0 mS
UNDO CHANGES
DONE
If “N/A” shows to the right of CENTER or REAR, change inputs to DVD (or another input where Dolby
Digital is the default operating mode) by pressing the appropriate button on the GTP-740's front panel or
remote controller.
* '*
Highlight CENTER with the Up/Down buttons and then select the proper delay setting with the < or >
buttons.
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