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audio delay When a disc has been incorrectly authored, the audio can be out of sync with
the video. Audio delay allows you to compensate for this by inserting a delay
that repositions the audio in relation to the video and brings them into sync. e
delay is adjustable in 10ms steps and operates within a range of ± 200 ms.
Modern video displays make extensive use of video processing (as does the
CDT-300 itself ). is circuitry converts standard defi nition video (480i or 576i,
depending on your local broadcast standard) to a format that is compatible with
modern fi xed matrix displays such as LCD, DLP or plasmas.
However, this conversion process takes some small amount of time, causing a
“lip sync” problem between the audio (which has not been delayed appreciably)
and the video (which has been delayed for processing). While some people are
more sensitive to this problem than others, anyone who perceives a consistent lag
between the audio and video will fi nd it quite annoying.
e audio delay function of the CDT-300 addresses this by delaying the audio
by anywhere by up to 200 milliseconds. is range of adjustment should be
adequate to handle any video processing delay you might fi nd in your system.
Note that the best use of this delay is to compensate for any delay introduced
by the CDT-300’s own video processing (assuming you are one of the ones who
are sensitive to this sort of thing). e CDT-300 can only delay audio coming
from itself, and has no control over (for example) broadcast television you may
be watching. If your television introduces enough video processing delay to be
noticeable, you would be better off using the audio delay feature of your A/V
preamplifi er/processor (assuming it has this capability—which Classé processors
do have.)
digital output e digital outputs of the CDT-300 can be confi gured in any of three ways,
based on how you plan to use the transport:
• off — selecting this feature will only enable audio output via HDMI.
• raw — which passes along the native signal of whatever disc is playing,
whether that is PCM, Dolby Digital, DTS, or anything else. is setting
assumes that your external processor can handle anything you might send
its way.
• PCM stereo — if the soundtrack you are playing contains multichannel
information, it will be “downmixed” to a two-channel PCM signal that
would be compatible with stereo playback, or further processing with
Dolby Pro Logic II or DTS Neo:6 (as examples).