Panasonic SC-PT673 Manuale Utente

RQ

TX02

10

A decoder restores the coded audio signals on DVDs to normal. This is 
called decoding.

This is a method of coding digital signals developed by Dolby 
Laboratories. Apart from stereo (2-channel) audio, these signals can also 
be 5.1-channel sound.

This surround system is used in many movie theaters around the world. 
There is good separation between the channels, so realistic sound effects 
are possible.

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.

Frames are the still pictures that go together to make a moving picture. 
There are about 30 frames shown each second.
One frame is made up of two fields. A regular TV shows these fields one 
after the other to create frames.
A still is shown when you pause a moving picture. A frame still is made up 
of two alternating fields, so the picture may appear blurred, but overall 
quality is high.
A field still is not blurred, but it has only half the information of a frame still 
so picture quality is lower.

HDMI is a next-generation digital interface for consumer electronic 
products. Unlike conventional connections, it transmits uncompressed 
digital video and audio signals on a single cable. This unit supports high-
definition video output (720p, 1080i, 1080p) from the HDMI AV OUT 
terminal. To enjoy high-definition video, a high-definition compatible TV is 
required.

MPEG 2, the video compression standard adopted for use with 
DVD-Video, codes frames using these 3 picture types.
I:

Intra coded picture
This picture has the best quality and is the best to use when adjusting 
the picture.

P: Predictive coded picture

This picture is calculated based on past I- or P-pictures.

B: Bidirectionally-predictive coded picture

This picture is calculated by comparing past and future I- and 
P-pictures so it has the lowest volume of information.

This is a system used for compressing/decoding color still pictures. The 
benefit of JPEG is less deterioration in picture quality considering the 
degree of compression.

These are uncompressed digital signals, similar to those found on CDs.

An audio compression method that compresses audio to approximately 
one tenth of its size without any considerable loss of audio quality.

If a Video CD has playback control, you can select scenes and 
information with menus.

NTSC, the video signal standard, has 480 interlaced (i) scan lines, 
whereas progressive scanning uses twice the number of scan lines. This 
is called 480p.
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.

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.

WMA is a compression format developed by Microsoft Corporation. It 
achieves the same sound quality as MP3 with a file size that is smaller 
than that of MP3.

Selecting fine audio equipment such as the 
unit you’ve just purchased is only the start of 
your musical enjoyment. Now it’s time to 
consider how you can maximize the fun and 
excitement your equipment offers. This 
manufacturer and the Electronic Industries 
Association’s Consumer Electronics Group 
want you to get the most out of your 
equipment by playing it at a safe level. One 
that lets the sound come through loud and 
clear without annoying blaring or distortion
—and, most importantly, without affecting 
your sensitive hearing.

We recommend that you avoid prolonged 
exposure to excessive noise.

Sound can be deceiving. Over time your 
hearing “comfort level” adapts to higher 
volumes of sound. So what sounds “normal” 
can actually be loud and harmful to your 
hearing.
Guard against this by setting your equipment 
at a safe level BEFORE your hearing adapts.

To establish a safe level:
≥ Start your volume control at a low setting.
≥ Slowly increase the sound until you can 

hear it comfortably and clearly, and without 
distortion.

Once you have established a comfortable 
sound level:
≥ Set the dial and leave it there.

Taking a minute to do this now will help to 
prevent hearing damage or loss in the future. 
After all, we want you listening for a lifetime.

RQTX0210-1P_670-673_Eng.book  Page 4  Friday, April 3, 2009  2:48 PM