NAD T755 Owner's Manual page 26

OPERATION
USING THE T 755 –SETUP MENU
6
DOLBY DIGITAL EX
Using a Matrix decoder, this method creates the back channel (sometimes also called the "surround
center") by means of signals on the left and right surround channels recorded in Dolby Digital 5.1,
reproduction being provided in Surround 6.1. This method should be selected with sources bearing
the (double-D symbol)-EX, recorded in Dolby Digital Surround EX.
With this additional channel you will experience improved dynamics and a better sensation of
movement within the sound field. If media sources recorded in Dolby Digital EX are decoded with a
Digital EX decoder, the format is detected automatically, and the Dolby Digital EX mode is selected.
However, some media sources recorded in Dolby Digital EX can be detected as simple Dolby Digital
media sources. In this case Dolby Digital EX should be selected manually.
NOTE
Please refer to the section "LISTENING MODE" at the Main Menu discussions for a description of Pro
Logic, PLIIx Movie, PLIIx Music and Stereo Downmix modes.
DTS
The Digital Theater System Digital Surround (simply called DTS) is a multi-channel digital signal format
that can process higher data rates than with Dolby Digital. Although both Dolby Digital and DTS are
5.1 channel media formats, discs bearing the "DTS" symbol are thought to provide better sound quality
due to the lower audio compression required. It also offers a broader dynamic, producing magnificent
sound quality.
A DTS input can be defaulted to one of the following options: - Neo:6 Music, Stereo Downmix or None.
If "None" is selected, the DTS signal will follow the "Digital" setting set forth at "Other" option under this
menu section. See discussion below about "Other".
NOTE
Please refer to the section "LISTENING MODE" at the Main Menu discussions for a description of
Stereo Downmix and DTS Neo:6 surround modes.
OTHER
If "None" is selected above for any of the Dolby Digital 2 Channel, Dolby Digital Surround and DTS
options or if the audio input is an analog signal, this "Other" section will manage the default audio
format as per the "Digital" or "Analog" settings.
Digital: The detected digital input can be configured by way of one of the following options
- Pro Logic, PLIIx Movie, PLIIx Music, Neo:6 Cinema, Neo:6 Music, EARS, Enhanced Stereo, Stereo
Downmix and None.
Analog: If the audio input is an analog signal, the following are the surround modes the input
can be defaulted - Pro Logic, PLIIx Movie, PLIIx Music, Neo:6 Cinema, Neo:6 Music, EARS, Enhanced
Stereo, Analog Bypass and None.
NOTE
All these Listening Modes for "Dolby Digital", "DTS" and "Other" can be directly changed by pressing
the "LISTENING MODE" button on the front panel or through the "Listening Mode" option at the
Main Menu window. The chosen audio format will be reflected back to the appropriate setting at
the "Listening Mode Setup".