Glossary - Panasonic SC-BT100 Operating Instructions Manual

Glossary

AVCHD
AVCHD is a new format (standard) for high definition video cameras
that can be used to record and play high-resolution HD images.
BD-J
Some BD-Video discs contain Java applications, and these
applications are called BD-J. You can enjoy various interactive
features in addition to playing normal video.
Bitstream
This is the digital form of multi-channel audio data (e.g., 5.1ch) before
it is decoded into its various channels.
BONUSVIEW (Final Standard Profile)
This is a BD-Video (BD-ROM version 2 Profile 1 version 1.1) that
supports the new functions such as Picture-in-picture, Secondary
Audio, and Virtual Package, etc.
DivX
DivX is a popular media technology created by DivX, Inc. DivX media
files contain highly compressed video with high visual quality that
maintains a relatively small file size.
Dolby Digital
This is a method of coding digital signals developed by Dolby
Laboratories. Apart from stereo (2ch) audio, these signals can also be
multi-channel audio.
Dolby Digital Plus
Multi-channel audio and higher audio quality is made possible using
Dolby Digital Plus. BD-Video supports up to 7.1ch output.
Dolby Digital Surround EX
This is the digital surround system developed by Dolby Laboratories.
Dolby Digital Surround EX adds a surround back channel to the traditional
5.1ch format of Dolby Digital. This creates a sound with greater presence.
Dolby Pro Logic II
Dolby Pro Logic II enables you to play stereo sources on 5.1ch.
Dolby Pro Logic IIx
Dolby Pro Logic IIx enables you to play stereo and 5.1ch sources on 7.1ch.
Dolby TrueHD
Dolby TrueHD is a very high quality audio format that reproduces the
studio master audio. BD-Video supports up to 7.1ch output.
DTS (Digital Theater Systems)
This surround system is used in many movie theatres. There is good
separation between the channels, so realistic sound effects are possible.
DTS-ES
DTS-ES adds a surround back channel to the traditional 5.1ch format
of DTS. This creates a sound with greater presence.
DTS-HD
DTS-HD is a high-quality, sophisticated audio format used in movie theatres.
Previous DTS Digital Surround-compatible equipment can play DTS-HD as
DTS Digital Surround audio. BD-Video supports up to 7.1ch output.
DTS NEO:6
DTS NEO:6 enables you to play stereo and 5.1ch sources on 6.1 channels.
DTS 96/24
DTS 96/24 provides 96 kHz sound at up to 24 bits. The 96 kHz/24 bit
high frequency sounds are played through multiple channels.
Dynamic range
Dynamic range is the difference between the lowest level of sound
that can be heard above the noise of the equipment and the highest
level of sound before distortion occurs.
Dynamic range compression means reducing the gap between the
loudest and softest sounds. This means you can listen at low volumes
but still hear dialogue clearly.
Film and video
DVD-Video are recorded using either film or video. This unit can
determine which type has been used, then uses the most suitable
method of progressive output.
Film: Recorded at 25 frames per second (PAL discs) or 24 frames per
second (NTSC discs). (NTSC discs recorded at 30 frames per
second as well.) Generally appropriate for motion picture films.
Video: Recorded at 25 frames/50 fields per second. (PAL discs) or 30
frames/60 fields per second (NTSC discs). Generally appropriate
for TV drama programmes or animation.
Frames and fields
Frames refer to the single images that constitute the video you see on
your TV. Each frame consists of two fields.
u
Frame Field
≥A frame still shows two fields, so there may be some blurring, but
RQT9161
picture quality is generally better.
≥A field still shows less picture information so it may be rougher, but
44
there is no blurring.
r
Field
HDMI (High-Definition Multimedia Interface)
HDMI is a digital interface for consumer electronic products. Unlike
conventional connections, it transmits uncompressed digital video and
audio signals on a single cable.
JPEG (Joint Photographic Experts Group)
This is a system used for compressing/decoding colour still pictures. If
you select JPEG as the storage system on digital cameras, etc., the
data will be compressed to 1/10–1/100 of its original size. The benefit
of JPEG is less deterioration in picture quality considering the degree
of compression.
Local storage
This storage area is used as a destination for sub contents for playing
virtual packages on BD-Video.
LPCM (Linear PCM)
These are uncompressed digital signals, similar to those found on CDs.
MP3 (MPEG Audio Layer 3)
An audio compression method that compresses audio to approximately
one tenth of its size without any significant loss of audio quality.
Pan&Scan/Letterbox
In general, DVD-Video are produced with the intention that they be
viewed on a widescreen TV (16:9 aspect ratio), so images often don't
fit regular (4:3 aspect ratio) TVs. Two styles of picture, "Pan & Scan"
and "Letterbox", deal with this problem.
Pan&Scan: The sides are cut off so the picture fills
the screen.
Letterbox: Black bands appear at the top and
bottom of the picture so the picture itself
appears in an aspect ratio of 16:9.
Picture-in-picture
This is a new function of BD-Video that plays the primary video and
secondary video simultaneously. For instance, the function is capable
of playing the original movie as the primary video while playing video
commentary from the film director on a small screen as a secondary
video.
Progressive/Interlace
The PAL video signal standard has 625 (or 576) interlaced (i) scan
lines, whereas progressive scanning, called 625p (or 576p), uses
twice the number of scan lines. For the NTSC standard, these are
called 525i (or 480i) and 525p (or 480p) respectively.
Using progressive output, you can enjoy the high-resolution video
recorded on media such as DVD-Video. Your TV must be compatible
to enjoy progressive video. Panasonic TV with 625 (576)/50i·50p, 525
(480)/60i·60p input terminals are progressive compatible.
Sampling frequency
Sampling is the process of converting the heights of sound wave
(analog signal) samples taken at set periods into digits (digital
encoding). Sampling frequency is the number of samples taken per
second, so larger numbers mean more faithful reproduction of the
original sound.
Virtual package
Some BD-Video discs copy data to other media (local storage) and
then play the secondary video, secondary audio, and subtitles (sub
contents) simultaneously.
These functions are called virtual packages.
Sub contents are automatically recorded to other media from the disc
prior to playing the virtual package. The playback methods vary
depending on discs.
1080i (1125i)
In one high definition image, 1080 (1125) alternating scan lines pass
to create an interlaced image. Because 1080i (1125i) more than
doubles current TV broadcasts of 480i, the detail is much clearer and
creates a more realistic and rich image.
1080p (1125p)
In one high definition image, 1080 (1125) scan lines pass at the same
time to create a progressive image. Since progressive video does not
alternate scan lines like interlace, there is a minimal amount of screen
flicker.
24p
This is a progressive image recorded at a rate of 24 frames per second.
720p (750p)
In one high definition image, 720 (750) scan lines pass at the same
time to create a progressive image. Since progressive video does not
alternate scan lines like interlace, there is a minimal amount of screen
flicker.