O dolby – Marantz NR1506 User Manual
Page 224
o Dolby
Dolby Digital
Dolby Digital is a multi-channel digital signal format developed by Dolby
Laboratories.
A total of 5.1-channels are played: 3 front channels (“FL”, “FR” and “C”), 2
surround channels (“SL” and “SR”) and the “LFE” channel for low
frequency effects.
Because of this, there is no crosstalk between channels and a realistic
sound field with a “three-dimensional” feeling (sense of distance,
movement and positioning) is achieved. This delivers a thrilling surround
sound experience in the home.
Dolby Digital Plus
Dolby Digital Plus is an improved Dolby Digital signal format that is
compatible with up to 7.1-channels of discrete digital sound and also
improves sound quality thanks to extra data bit rate performance. It is
upwardly compatible with conventional Dolby Digital, so it offers greater
flexibility in response to the source signal and the conditions of the
playback device.
Dolby Pro Logic g
Dolby Pro Logic g is a matrix decoding technology developed by Dolby
Laboratories.
Regular music such as that on CDs is encoded into 5-channels to achieve
an excellent surround effect.
The surround channel signals are converted into stereo and full band
signals (with a frequency response of 20 Hz to 20 kHz or greater) to create
a “three-dimensional” sound image offering a rich sense of presence for all
stereo sources.
Dolby TrueHD
Dolby TrueHD is a high definition audio technology developed by Dolby
Laboratories, using lossless coding technology to faithfully reproduce the
sound of the studio master.
This format provides the facility to support up to 8 audio channels with a
sampling frequency of 96 kHz/24 bit resolution and up to 6 audio channels
with a sampling frequency of 192 kHz/24 bit resolution.
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