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DTS 6.1 Compatible:
This DTS mode is actually identical to DTS ES 6.1 Matrix as described above, but
by enabling this mode the user choose always to activate the matrix process on the
SL and SR to generate the SC channel. DTS 6.1 Compatible will work on Dolby
Digital 5.1 streams, too. Try out e.g. the “Black Hawk Down” disc.
If the installation contains three surround channels, 6.1 Compatible will improve the
surround experience on nearly all 5.1 encoded music and movie CD/DVD disc’s.
Also 6.1 Compatible will generate the same sound information in the SC channel as
the THX Surround EX process.
In this case the user should enable both “6.1 Discrete + Matrix” and “6.1
Compatible” under the config.extended surround menu.
DTS 96kHz:
DTS offer a new format, also supported by PR350 B, where D/A conversion takes
place at 96kHz. The encoding resolution is also 24bit, thus the format is normally
referred to as “DTS 24/96”. PR350 B will automatically detect this type of bitstream
and display 96k 5.1. No interaction from the user is necessary.
The 6.1 Compatible mode is automatically disabled and no sound comes from the
SC channel in 96kHz mode.
The “Queen: A night at the opera” CD in DTS 24/96 demonstrates the usefulness of
this format.
The DTS 24/96 format is compatible in performance with DVD Audio, but can be
played on normal CD or DVD video players.
5.3 Dolby ProLogic II
The PR350 B support the new format ProLogic II, which generate surround and
center channels from a normal stereo signal. Compared with the conventional
ProLogic, the new ProLogic II among other things offers, separate SL and SR
channels with full bandwidth information.
PR350 B supports separate music and movie mode for ProLogic II. The normal
movie mode concentrate to much information in the center channel for music,
therefore the special music mode spread out the music in the center channel to the
L & R speakers.
Thule Audio finds the music mode very useful especially for some live recordings,
but it is also a matter of taste, if it is used.
For each input the user can decide by default , if Music or Movie mode, or no
ProLogic II is activated, under the config.ProLogic II menu
The surround mode can be toggled between STEREO and Dolby ProLogic II by an
additional short push on the “SURROUND MODE” key.
As a unique feature in PR350 B, ProLogic II is supported for 96kHz sample rate.
This is useful as the high quality A/D converter in PR350 B operates at 96kHz and
also some DVD’s operate at 96kHz.
5.4 PCM and analogue inputs
An analogue input is present if the letters “ANLG” is indicated after the source name,
e.g. LD ANLG. A PCM input is present, if a Dolby Digital or DTS stream is not auto
detected for a digital input (COAX or OPTO).