Optimus 31-3042 - Manual (Page 45)

23
Using Advanced Sound Options
Delay Time
In the Dolby Pro Logic Surround modes ( PRO LOGIC , THEATER 1 , and THE-
ATER 2 ), the receiver slightly delays the sound going to the rear speakers. You
can change this delay time from 15 to 30 milliseconds (ms) in 5 ms steps. Adjust
the delay time for the best surround effect.
Press SURROUND, then hold down DELAY TIME to change the delay time. The
receiver displays the selected time.
Effect Level
With DSP and Dolby Virtual, you can change the delay time to alter the sound
effect. You can set different levels for each mode independently (from 10 to 90
for DSP, and from 30 to 90 for Dolby Virtual).
Press SURROUND , then hold down DISC EFFECT – or + to change the effect level.
Dolby Virtual effects change considerably when the listening position changes.
It sounds best when you move farther away from the speakers (about 1.2 times
farther than the distance between the left and right speakers).
Also, the effect can vary depending on the source program.
Notes:
• For Dolby Pro Logic Surround, the de-
lay is preset to 5 ms.
• The delay time does not affect the
DSP or Dolby Virtual mode.