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see tuning systemstuning systems,
methods for assigning pitches to the twelve Western pitch names that constitute the octave. The term usually refers to this procedure in the tuning of keyboard instruments.
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a change—within limits determined by specifications —of the variables of instruments, machines, or devices, usually during operation, upon shifting to a new operating mode (distinguished from adjustment, which is aimed at ensuring normal functioning). If necessary, tuning may be done under conditions more stringent than normal operation to verify the operational capacity of the least reliable and most important elements of the apparatus. The results of tuning are frequently recorded and formalized in appropriate technical documentation (technical certificate, test report, or acceptance certificate) upon completion of manufacture or delivery to the user.

The term “tuning” frequently means regulation of the tone of musical instruments, finding the desired wavelength on the scale of a radio receiver or transmitter, or selection of television broadcast channels.


(computer science)
The use of various techniques involving adjustments to both hardware and software to improve the operating efficiency of a computer system.
The process of adjusting the inductance or the capacitance or both in a tuned circuit, for example, in a radio, television, or radar receiver or transmitter, so as to obtain optimum performance at a selected frequency.
References in periodicals archive ?
Faster tuning can be achieved by solid-state devices, which usually are varactor diodes if continuous tuning is desired or PIN diodes in the case of discrete tuning.
The first method, shown in Figure 2, involves placing the varactors on the mechanical tuning plate, which is located directly above the resonator.
Although it is possible to produce as much as 56 MHz of electronic tuning in a X-band DR with an unloaded Q greater than 1000,[7,10] this method is particularly cumbersome to implement.
The resonator is mounted directly above the tuning circuit and is supported by a low loss spacer.
An unusual technique known as invasive tuning has also been employed.
In a DRO tuned using PIN diodes,[13] the tuning element consists of a conducting disc divided into four segments interconnected by PIN diodes and placed at a distance d above the DR, as shown in Figure 6.
Optical tuning of microwave devices, in general, and DRs, in particular, is highly desirable mainly for its high tuning speed.
Optical tuning of DRs has been reported previously.
A careful comparative study of the numerous tuning techniques available has shown that the varactor diode currently is the most suitable tuning mechanism for low power requirements since if offers low loss and high tuning speed.