What is video format, What is photo format – Sony NWZ-S544 User Manual

Page 96

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ModelName: Flamingo_E

PartNumber: 4-154-416-11(1)





Useful Facts

What is the relationship between bit rate, sound quality, and storage size?

Generally, higher bit rates provide better sound quality, but require more

storage space for the same length of audio, so you can store fewer songs on the

player.

Lower bit rates enable you to store more songs, but at a lower sound quality.

Note

 If you import a song from a CD to your computer at a low bit rate, you cannot improve

the song’s sound quality by selecting a high bit rate when further transferring the song

from the computer to the player.

What is video format?

Video format refers to the method used when importing video and audio data

to a computer and saving it as a video file.

Common formats include MPEG-4 and AVC, etc.
MPEG-4: MPEG-4 refers to Moving Picture Experts Group phase 4, developed

by the MPEG working group of the ISO (International Organization for

Standardization). The compression format is for video and audio data.
AVC: AVC refers to Advanced Video Coding, developed by the MPEG working

group of the ISO (International Organization for Standardization). It enables

reproduction of more vivid images at a lower bit rate. AVC files include four

profiles, and “AVC Baseline Profile” is one of them. AVC format is based on the

MPEG-4 AVC standard of the ISO (International Organization for

Standardization), and since AVC is standardized as the MPEG-4 Part 10

Advanced Video Coding, it is commonly referred to as MPEG-4 AVC/H.264 or

H.264/AVC.
WMV: WMV (Windows Media Video) is a video compression format

developed by Microsoft Corporation. It was built upon MPEG-4, achieves a

high compression rate, and supports copy control by DRM.

What is photo format?

Photo format refers to the method used when importing images to a computer

and saving them as image files. JPEG is one example of a commonly used

format.
JPEG: JPEG (Joint Photographic Experts Group) is a common image

compression format developed by the JPEG. JPEG can compress an image file

to between 1/10 and 1/100 the size of original image files.

Hint

 For details on supported file formats and bit rates, see  p. 125.

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