JBL Home Theater System Home Theater System User Manual


 
MODE ADJUST
JBL Synthesis
5-18
DOLBY DIGITAL & DOLBY DIGITAL EX
Designed for playback of 5.1-channel Dolby Digital sources.
The DOLBY DIGITAL EX listening mode is recommended for
Dolby Digital sources recorded with Dolby Digital Surround EX.
This listening mode can also be used with 5.1-channel Dolby
Digital sources with mixed results.
Listening mode name differs depending on the encoding
present in the input source, the EX DECODING parameter
setting, and the speaker setup. The table on the next page
indicates the conditions in which Dolby Digital Surround EX
decoding is engaged.
Decodes 5.1 discrete channels from 5.1-channel Dolby Digital
sources. The five main channels are full frequency. The .1
channel, often referred to as LFE information, has a limited
frequency range of 120Hz.
When the DOLBY DIGITAL EX listening mode is activated,
matrix decoding derives a surround back channel from the
other surround channels.
Option/ Default Possible
Parameter Setting Settings
EX DECODING AUTO AUTO, ON, OFF
COMPRESSION OFF AUTO, ON, OFF
LFE MIX +0.0dB -10.0 to +0.0dB
OUTPUT LEVELS
CUSTOM
Listening mode menu option and parameter descriptions begin on page 5-28.
5.1 THX MUSIC
Designed for playback of 5.1-channel Dolby Digital music
sources.
The 5.1 THX MUSIC listening mode cannot be activated unless
side and rear speakers are present.
ASA processing is applied to signals sent to the rear speakers.
Refer to the ASA parameter description on page 3-34 for more
information.
Recommended for home theaters with THX-certified
loudspeakers.
Option/ Default Possible
Parameter Setting Settings
COMPRESSION OFF AUTO, ON, OFF
LFE MIX +0.0dB -10.0 to +0.0dB
OUTPUT LEVELS
CUSTOM
Listening mode menu option and parameter descriptions begin on page 5-28.
Note:
The 5.1 THX MUSIC listening mode can only be
activated with the front panel or remote control
Mode and buttons.
MODE ADJUST 5.1 THXI MUSIC
MODE ADJUST %!DIGITAL EX
OR%!DIGITAL