2. The different ways to store
media
AUDIO:
•WAV- (wave file) digitised audio file of varying levels of quality which
can be played directly by a sound card.
•MIDI- (musical instrument digital interface) stores note information
rather than sound which results in a small field size. However it
requires a synthesiser to replay.
•MP3- derieved from audio layer 3 in a MPEG video, currently requires
a software player.
3. The different ways to store
media cont’
VIDEO!
• AVI- (audio video interleave)
• MPEG- (motion pictures expert group)
• QUICKTIME- apple digital video, also available on PC
4. The different ways to store
media cont’
IMAGE!
• JPG- (joint photographic experts group) a lossy compression format
designed to reduce the size of full colour bit maps.
• EPS- (encapsulated postscript) uses vector graphics and often will only be
interpreted by a printer
• PICT- apple graphics format that is either bit mapped or vector graphics
• TIFF- (tagged image file format) a bit mapped format, standard choice for
scanned images
• BMP- (bit map) an uncompressed bit mapped file format.
• GIF- (graphics interchanged format) bit mapped format that uses a lossless
compression. Limit of 256 colours.
5. The different ways to store
media cont’
TEXT AND NUMBERS
• TXT- ASSCII text or delimited text exported from a database.
• DOC – microsoft word file
• PDF – ( portable document format) proprietary digital format produced by
adobe which preserves format and look of text document.
• HTML- (hypertext mark up languages) text based language which a web
browser user to render text, images, audio and video
• RTF- (rich text format) used to produce a document that can be read by
other word processors
