DI (Data Interchange) is a language of data description It is used within the Open Modline environment to communicate bits of data between the various tool A new specification of syntax and semantics is under way
Direction Indicator A gyro instrument which indicates the magnetic heading of an aircraft The DI, also known as the directional gyro (DG), is free of the turning errors associated with magnetic compasses but is prone to precession (wander) and must be reset against the magnetic compass at intervals
Deionisation, type of water purification Generally used to remove silicates and phosphates from RO water
A technique for connecting an electric guitar or bass guitar directly to a mixer The high output impedance of the guitar is matched with the low impedance of the mixer input using a DI Box Some instrument amplifier's feature a DI connection