Abstract: This metric is the ratio of the maintenance personnel who are actively doing the maintenance work (direct) to the maintenance personnel supporting the maintenance work (indirect). Direct personnel include those workers in the maintenance department that repair, maintain, modify or calibrate equipment.
MIDI (Musical Instrument Digital Interface) is a protocol designed for recording and playing back music on digital synthesizers that is supported by many makes of personal computer sound cards. Originally intended to control one keyboard from another, it was quickly adopted for the personal computer.
A microphone can be attached to a computer to record sound (usually through a sound card input or circuitry built into the motherboard). The sound is digitizedâturned into numbers that represent the original analog sound wavesâand stored in the computer to later processing and playback. MIDI Devices