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Kenwood KRF-V7070D User Manual

Page 29

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29

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Ambience effects

Dolby Digital

The Dolby Digital surround format lets you enjoy up to 5.1 channels
of digital surround sound from Dolby Digital program sources (such

as Laserdisc or DVD software marked

). Compared with

previous Dolby surround, Dolby Digital provides even better sound
quality, greater spatial accuracy, and improved dynamic range.

Although a full set of speakers (front left, right, and center, surround
left and right, and a subwoofer) is required for true 5.1 channel Dolby
Digital surround sound, this receiver lets you enjoy Dolby Digital (and
Dolby Surround) program sources, even if you connect only the front
speakers.

Dolby Digital EX

Dolby Digital EX is an extension of Dolby Digital technology, Dolby
Digital EX creates six full-bandwidth output channels from 6.1-
channel sources. This is done using a matrix decoder that derives
three surround channels from the two in the original recording. This
is achieved by using three different surround signals, Left Surround,
Right Surround, and Back Surround, each driving its own array of
speakers. Think of it as adding a center channel for the rear speakers,
which give more diffuse and natural surround effect, even if you
wanted the ability to completely encircle the audience with sound,
positioning sound effects exactly where they wolud be heard in real
life. For best results, Dolby Digital EX should be used with movie
soundtracks recorded with Dolby Digital Surround EX which contain
a digital flag that will automatically activate this feature. However, for
titles released prior to late 2001, this feature has to be activated
manually.

Although a full set of speakers (front left, right, and center, surround
left and right, surround back and a subwoofer) is required for true 6.1
channel Dolby Digital Surround EX sound, this receiver lets you enjoy
Dolby Digital (and Dolby Surround) program sources, even if you
connect only the front speakers.

Although only Dolby Digital soundtracks incorporate a separate low
frequency channel, connecting a subwoofer will also improve deep
bass performance in the other surround modes.

The indication “LFE” appears in the display when a signal is being
input for this channel.

Dolby PRO LOGIC

II

Dolby Pro Logic II was designed specifically to provide a new sense
of spatiality, directionality and articulation of sounds from Dolby
Surround encoded sources (such as video and Laserdisc software
marked

). This is achieved with an intelligent, built-in

feedback logic design, a matrix surround decoding and the decoding
of stereo, full bandwidth surround outputs. The PRO LOGIC II modes
programmed into this receiver are “MOVIE”, “MUSIC” and “PRO
LOGIC”. The “MOVIE” mode of the PRO LOGIC II has preset
characteristics to produce a calibrated, high-level surround sound
playback while the “MUSIC” mode has user-adjustable characteristics
to offer the three optional controls, like “Dimension”, “Center
Width” and “Panorama” modes to allow optimization of the
soundfields as desired. The “Dimension” control allows the user to
gradually adjust the soundfield either towards the front or towards
the rear; the “Center Width” control allows various adjustment of the
left-center-right speakers’ balance; the “Panorama” mode extends
the front stereo image to include the surround speakers for an
exciting “wraparound” effect with side wall imaging.

DTS

The DTS multi-channel audio format is available on CD, LD and DVD
software. DTS is a strictly digital format and cannot be decoded inside
most CD, LD or DVD players. For this reason, if you attempt to listen
to DTS encoded software through the analog output of your new CD,
LD or DVD player, you will experience digital noise in most cases. This
noise can be quite loud if the analog output is connected directly to
a high power amplification system. Proper measures for playing the
digital output as described below should be taken to avoid this
situation. To enjoy DTS Digital Surround playback, an external 5.1
channel DTS Digital Surround decoder system or an amplifier with a
built-in DTS Digital Surround decoder must be connected to the
digital output (S/P DIF, AES/EBU or TosLink) of a CD, LD or DVD
player.
All models are incorporated with the DTS decoder.

DTS has a .1 or LFE channel.
The indication “LFE” appears in the display when a signal is being
input for this channel.

Note
LFE = Low Frequency Effects. This channel delivers separate non-
directional bass signals to the subwoofer for more dynamic deep
bass sound effects.

DVD 6-channel mode

Using a DVD player or the like equipped with six (5.1) output channels
and the receiver, you can enjoy multi-channel encoded DVD source
material in all its splendor. Since the source signals are digital and
each channel is input independently, the resulting sound quality,
sense of spaciousness, and dynamic range are superb.

The indication "LFE" appears in the display during DVD 6-channel
mode selection.