Avermedia AVer MediaCenter User Manual download pdf (Page 41)

Appendix

37

 Glossary

AVI

AVI is the most common video file format for

playback on the computer. It can be saved in

uncompressed form if you want high quality

video, or compressed using any of the available

codecs if you want to minimize the file size.

Aspect Ratio

Aspect ratio indicates the ratio of the width of an

image to its height. The two most common

aspect ratio of home video is 4:3 and 16:9.

DVD

When you choose this format, the recorded

video file will be saved in MPEG-2 format that is

compliant with DVD standards. Standard DVD

frame size and frame rate are 720 x 480 pixels at

29.97 fps for NTSC and 720 x 576 at 25 fps for

PAL.

DxVA

DxVA stands for DirectX Video Acceleration,

which is an application programming interface

(API) defined by Microsoft. It allows decoders to

accelerate video playback directly on the

graphics processors instead of the main CPU.

This means DxVA technology can reduce the

CPU usage.

H.264

Videos compressed using MPEG-4 standard are

two or three times more efficient than MPEG-2.

This format can be applied to a wide variety of

applications or networks and systems like

HD-DVD, Digital TV, Broadcast and Streaming

applications.

Hibernate

Hibernation is a state in which your computer shuts

down to save power but first saves everything in

memory on your hard disk.

iPod

A video format base on H.264 standard but has

smaller video bit rate. It’s an iPod -compatible

format.

MPEG-1

Choose MPEG-1 format for video files that are

intended for CD-ROM playback on a computer or

for Internet transmission. MPEG-1 allows file

compression and offers VHS quality picture. Just

about every system available today can play

MPEG-1 and does not need special software or

hardware.

MPEG-2

Videos compressed using MPEG-2 has

extremely high quality pictures and full

CD-quality sound. Choose MPEG-2 format for

video files that are intended for DVD-ROM

playback on a computer or if you want

broadcast quality videos.

PIP (Picture in Picture)

PIP allows you to view two or more video

sources at the same time wherein the small inset

screens overlaid on the main screen.

PBP (Picture by Picture)

PBP allows you to view two or more video

sources side by side on a display so that all

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