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Lecture BSc Multimedia - Chapter 6: MIDI and MPEG-4 audio compression

Chapter 6: MIDI and MPEG-4 audio compression. This chapter presents the following content: What is MIDI? MIDI as a compression tool? Brief history of MIDI, components of a MIDI system, basic MIDI concepts, hardware aspects of MIDI, structure of MIDI messages,. | CM3106 Chapter 6 MIDI and MPEG-4 Audio Compression Prof David Marshall dave.marshall@cs.cardiff.ac.uk and Dr Kirill Sidorov K.Sidorov@cs.cf.ac.uk www.facebook.com kirill.sidorov School of Computer Science Informatics Cardiff University UK MIDI What is MIDI No Longer Exclusively the Domain of Musicians. MIDI provides a very low bandwidth alternative on the Web transmit musical and certain sound effects data also now used as a compression control language modified See MPEG-4 Section soon See also HTML5 soon CM3106 Chapter 6 MIDI MIDI 2 MIDI as a Compression Tool Few 100K bytes storage Very low bandwidth transmission The responsibility of producing sound is moved to the client Synthesiser Module Sampler Soundcard Software Generated Most Web browsers can deal with MIDI. MPEG-4 Available as plugins e.g. Quicktime and as of 2013 as Web MIDI API in HTML 5 More Soon CM3106 Chapter 6 MIDI MIDI