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.
Here's how to use it to test for MIDI functionality in your system: 1  Open the Audio MIDI Setup application. 2  Click the MIDI Devices tab. 3  Click the Test Setup buttonâthe button turns blue and the cursor turns into a pair of musical notes. With Test Setup engaged, you can test your MIDI setup's output ports and attached MIDI controllers.