Appendix 2 Digital Data Compression
Knowledge of digital data compression is very important when working in transmedia, particularly with regard to problem solving and pushing digital audiovisual materials to their limits. Online broadcasters employ compression technologies that reduce file size with minimum quality loss. Smaller files can be sent faster and require less bandwidth for transmission. A codec (compressor/decompressor) is used to ‘compress’ a file before transmitting it online. The same model codec is used by the receiver to ‘decompress’ the file when it has arrived at its destination. A great number of codecs are available for music, images and video and some of them are quite similar in performance, but the codec that ...
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