Sony HT-K250 Operating Instructions Manual page 22

Enjoying Dolby Pro Logic (II)
This function lets you specify the type of
decoding for 2 channel audio sources.
This system can reproduce 2 channel sound in 4
channels through Dolby Pro Logic; or 5
channels through Dolby Pro Logic II.
x A.F.D. Pro Logic
Dealing with Dolby Pro Logic. Sources
recorded in 2 channels are decoded and played
back in 4 channels.
x A.F.D. PL II MOVIE
Dealing with DOLBY PRO LOGIC II MOVIE.
This is ideal for playback of Dolby Surround
encoded movies. Dubbed or old movies can be
played back in 5 channels.
x A.F.D. PL II MUSIC
Dealing with DOLBY PRO LOGIC II MUSIC.
This is ideal for playback of normal stereo
sources such as CDs.
Note
Dolby Pro Logic and Dolby Pro Logic II do not work
for DTS signals.
Detecting the type of audio
signal automatically
x A.F.D. AUTO
A.F.D. (Auto Format Direct) function
automatically detects the type of audio signal
being input (Dolby Digital, DTS, or standard 2
channel stereo) and performs the proper
decoding if necessary. This mode presents the
sound as it was recorded/encoded, without
adding any effects (ex. reverberation).
Other sound fields
x HALL
Reproduces the acoustics of a rectangular
concert hall.
x JAZZ
Reproduces the acoustics of a jazz club.
x LIVE CONCERT
Reproduces the acoustics of a 300-seat live
house.
GB
22
x GAME
Obtains maximum audio impact from TV game
software.
Making the low-level sound
clear (DOLBY DRC)
When you listen to DVDs at low volume levels,
you can compress the dynamic range and finely
adjust for low-level sound. This function works
only for DVDs compatible with Dolby DRC*
(audio DRC).
* Dolby DRC: Dolby Dynamic Range
Compressor
1
Press MAIN MENU repeatedly to select
"LEVEL".
2
Move the V/v/B/b button up or down
to select "DRC".
3
Move the V/v/B/b button to left or
right to select "STD" or "MAX".
If you select "STD", the dynamic range is
compressed as intended by the recording
engineer.
If you select "MAX", the dynamic range is
compressed dramatically.
To turn off the DOLBY DRC, select
"OFF".
Tip
Dynamic range compressor lets you compress the
dynamic range of the soundtrack based on the dynamic
range information included in the Dolby Digital signal.
"STD" is standard compression, but because many
sources have only light compression, we recommend
using the "MAX" setting. This greatly compresses the
dynamic range and lets you view movies late at night
at low volumes. Unlike analog limiters, the levels are
predetermined and provide a very natural compression.
Note
Dynamic range compression is possible with Dolby
Digital sources only.