Philips HES4900/98 user manual Glossary, Dolby Digital, Hdmi, Jpeg

12 Glossary

A

Analog audio

Sound that has not been turned into numbers. Analog sound is available when you use the AUDIO LEFT/RIGHT.These red and white jacks send audio through two channels, the left and right.

Aspect ratio

Aspect ratio refers to the length to height ratio ofTV screens.The ratio of a standardTV is 4:3, while the ratio of a high-defi nition or wideTV is 16:9.The letter box allows you to enjoy a picture with a wider perspective on a standard 4:3 screen.

B

Bit rate

Bit rate is the number of bits that are conveyed or processed per unit of time.The bit rate is usually measured in some multiple of bits per second (kilobits per second: kbps).The term bit rate is a synonym for data transfer rate (or simply data rate).

C

Chapter

Chapter

Sections of a picture or a music piece on a DVD that are smaller than titles.A title is composed of several chapters. Each chapter is assigned a chapter number that enables you to locate a specifi c chapter.

D

Digital Audio

Digital Audio is a sound signal that has been converted into numerical values. Digital sound can be transmitted through multiple channels.

Analog sound can only be transmitted through two channels.

Disc menu

A screen display that allows election of images, sounds, subtitles, multi-angles, etc., recorded on a DVD.

DivX®

The DivX® codec is a patent-pending, MPEG-4 based video compression technology developed by DivX®, Inc. It can shrink the fi le size of digital video and still maintain the high visual quality.

Dolby Digital

A surround sound system developed by Dolby Laboratories that contains up to six channels of digital audio (front left and right, surround left and right, center and subwoofer.)

H

HDMI

High-Defi nition Multimedia Interface is a high-speed digital interface that can transmit uncompressed high defi nition video and digital multichannel audio. It delivers high quality picture and sound quality, completely free from noise. HDMI is fully backward-compatible with DVI.

As required by the HDMI standard, connecting to HDMI or DVI products without HDCP (High-bandwidth Digital Content Protection) will result in noVideo or Audio output.

J

JPEG

A very common digital still picture format.A still-picture data compression system proposed by the Joint Photographic Expert Group, which features small decrease in image quality in spite of its high compression ratio. Files are recognized by their fi le extension ‘.jpg’ or ‘.jpeg.’

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