Audio file formats – Apple Final Cut Pro 7 User Manual

Page 1714

Advertising
background image

Photo JPEG: An extremely popular file format because it can create highly compressed

yet good-looking graphics files. You can choose grayscale or color as well as the amount
of compression.

Photoshop (PSD): You can import files created or saved in the Photoshop format, along

with multilayered Photoshop files. (For more information, see

“Compositing and

Layering.”

)

PICS: A file format used on Mac OS computers for animation sequences. The format is

no longer used, in favor of QuickTime.

PICT: A common image format used on Mac OS computers. PICT files can use any of

the standard QuickTime codecs for compression in color or grayscale.

PNG: Portable Network Graphics. A file format for bitmapped graphic images designed

as the successor to GIF.

QuickTime Image File (QTIF): A QuickTime container file that contains an image using

a supported QuickTime codec.

SGI: Silicon Graphics Image file format.

TARGA (TGA): The Targa file format. An uncompressed file format that stores images

with millions of colors. Targa files are supported by nearly every platform and media
application.

TIFF: Common on Mac OS and Windows computers. TIFF files allow color depths from

dithered black and white to millions of colors and one form of compression.

Note: Almost all of these file formats can contain an alpha channel.

Audio File Formats

The following is a list of common audio file formats:

AAC or .mp4: Advanced audio coding. This format is a continuation of the MP3 audio

format, improving quality while reducing file size. This audio format is commonly used
in MPEG-4 multimedia files, and can support features such as surround sound.

AIFF/AIFC: Audio Interchange File Format. An audio format for Mac computers commonly

used for storing uncompressed, CD-quality sound (similar to WAVE files for
Windows-based PCs).

Audio CD Data (.cdda): Compact Disc Digital Audio. Audio files stored on CD.

MP3: Short for MPEG-1, layer 3 audio. This is a very popular format for online music

distribution.

Sound Designer II: Sound Designer II, sometimes seen abbreviated as SD2. A monophonic

and stereophonic audio file format, originally developed by Digidesign for Mac
computers.

System 7 Sound: An older sound format developed by Apple.

1714

Chapter 103

Learning About QuickTime

Advertising