Yamaha DSP-AX861SE Owner's Manual: Dts Digital Surround

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Glossary
■ DTS 96/24
DTS 96/24 offers an unprecedented level of audio quality
for multi-channel sound on DVD video, and is fully
backward-compatible with all DTS decoders. "96" refers
to a 96 kHz sampling rate compared to the typical 48 kHz
sampling rate. "24" refers to 24-bit word length. DTS 96/
24 offers sound quality transparent to the original 96/24
master, and 96/24 5.1-channel sound with full-quality full-
motion video for music programs and motion picture
soundtracks on DVD video.

■ DTS Digital Surround

DTS digital surround was developed to replace the analog
soundtracks of movies with a 6.1-channel digital sound
track, and is now rapidly gaining popularity in movie
theaters around the world. DTS, Inc. has developed a
home theater system so that you can enjoy the depth of
sound and natural spatial representation of DTS digital
surround in your home. This system produces practically
distortion-free 6.1-channel sound (technically, front left
and right, center, surround left and right, and LFE 0.1
(subwoofer) channels for a total of 5.1 channels). This unit
incorporates a DTS-ES decoder that enables 6.1-channel
reproduction by adding the surround back channel to the
existing 5.1-channel format.
■ HDMI
HDMI (High-Definition Multimedia Interface) is the first
industry-supported, uncompressed, all-digital audio/video
interface. Providing an interface between any source (such
as a set-top box or AV receiver) and an audio/video
monitor (such as a digital television), HDMI supports
standard, enhanced or high-definition video as well as
multi-channel digital audio using a single cable. HDMI
transmits all ATSC HDTV standards and supports
8-channel digital audio, with bandwidth to spare to
accommodate future enhancements and requirements.
When used in combination with HDCP (High-bandwidth
Digital Content Protection), HDMI provides a secure
audio/video interface that meets the security requirements
of content providers and system operators. For further
information on HDMI, visit the HDMI website at
"http://www.hdmi.org/".
■ LFE 0.1 channel
This channel reproduces low-frequency signals. The
frequency range of this channel is from 20 Hz to 120 Hz.
This channel is counted as 0.1 because it only enforces a
low-frequency range compared to the full-range
reproduced by the other 5/6 channels in Dolby Digital or
DTS 5.1/6.1-channel systems.
100
En
■ Neo:6
Neo:6 decodes the conventional 2-channel sources for
6- channel playback by the specific decoder. It enables
playback with the full-range channels with higher
separation just like digital discrete signal playback. There
are two modes available: "Music mode" for music sources
and "Cinema mode" for movie sources.
■ PCM (Linear PCM)
Linear PCM is a signal format under which an analog
audio signal is digitized, recorded and transmitted without
using any compression. This is used as a method of
recording CDs and DVD audio. The PCM system uses a
technique for sampling the size of the analog signal per
very small unit of time. Standing for "Pulse Code
Modulation", the analog signal is encoded as pulses and
then modulated for recording.
■ Sampling frequency and number of
quantized bits
When digitizing an analog audio signal, the number of
times the signal is sampled per second is called the
sampling frequency, while the degree of fineness when
converting the sound level into a numeric value is called
the number of quantized bits. The range of rates that can
be played back is determined based on the sampling rate,
while the dynamic range representing the sound level
difference is determined by the number of quantized bits.
In principle, the higher the sampling frequency, the wider
the range of frequencies that can be played back, and the
higher the number of quantized bits, the more finely the
sound level can be reproduced.
■ S-video signal
With the S-video signal system, the video signal normally
transmitted using a pin cable is separated and transmitted
as the Y signal for the luminance and the C signal for the
chrominance through the S-video cable. Using the
S VIDEO jack eliminates video signal transmission loss
and allows recording and playback of even more beautiful
images.

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