Adobe Media Encoder CS4 Instrukcja Użytkownika Pobierz pdf (Strona 17)

USING ADOBE MEDIA ENCODER CS4

Video and audio basics

Last updated 4/29/2012

Important: The free trial version of Adobe Media Encoder software does not include some features that depend upon

software licensed from parties other than Adobe. For example, some codecs for encoding and decoding MPEG formats are

available only with the full version of Adobe Media Encoder software.

MPEG-1 Typically used for the Internet and CD-ROM, providing picture quality comparable with VHS quality at

quarter-screen frame size.

MPEG-2 Delivers higher quality video than MPEG-1. A specific form of MPEG2 was chosen as the standard for

compressing video for DVD video. This is called DVD-compliant MPEG-2. MPEG-2 compression is also used in

HDV, and supported in the HD-DVD, and Blu-ray formats.

MPEG-4 Includes many of the features of MPEG-1 and MPEG-2, and adds support for interactivity. It offers better

compression and reduces file size while maintaining the same perceptual quality level as MPEG-2. MPEG-4 part 10

(H.264, AVC) is the supported by the Blu-ray and HD-DVD formats.

Adobe Media Encoder offers a number of MPEG presets to optimize the output quality for various project types. If

you’re experienced with MPEG encoding, you can further fine-tune projects for specific playback situations by

customizing the presets in the Export Settings dialog box.

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