MIDI File Format in Multimedia
MIDI File Format:
MIDI files store the list of a large number of musical instruments. It also provides the list of each of the notes any instrument will play and indicates for each one how loud it is, what pitch and how long it will last. Then using several pure-tone generators called oscillators. The Standard MIDI File Format is AIFF, RIFF, SND, ROL, SUN Audio and VOC.
In a specialized FM-synthesis microprocessor chip, it is possible to produce any musical note you might imagine, nearly the way it would sound if it had been played on one of those instruments. Every MPC has got a frequency modulation (FM) MIDI synthesizer built-in, ready to play the sounds indicated by such a file.
1. Audio Interchange File Format (AIFF): It is used by Machintosh, IBM compatibles, and Silicon Graphics machines. It also supports up to 32-bit resolution.
2. Resource Interchange File Format (RIFF): It is developed by Microsoft and contains both digital audio and MIDI data.
3. SND: It is developed by Apple and supports only 8-bit resolution.
4. ROL: It stores MIDI-like data and Yamaha FM-synthesizer information.
5. Sun Audio: It is a 16-bit compressed audio format used by Sun Microsystems workstations. It is also used on the Internet.
6. VOC: It is developed for the Creative Sound Blaster Audio Card. It also supports up to 16-bit resolution.