On many platforms, it can also produce direct audio output in real time.
For some purposes, direct output to photographic film is preferable to paper output.
A device called a film writer is available for direct output.
The switch joystick gives a direct digital output corresponding to the direction in which it is moved.
Small units often have direct drive generators, direct current output, lifetime bearings and use a vane to point into the wind.
This can be used if a "clean" direct output from amplifier is desired.
The direct outputs of the program are dynamic representations of a flow's depth and momentum.
Using electronic stethoscopes, it is possible to record heart sounds via direct output to an external recording device, such as a laptop or MP3 recorder.
They generally use individual piezo-electric transducers one per string often in combination with small internal microphones to produce a direct output mixed electrical signal.
The earliest systems depended on those commercially available mixing desks which had direct outputs from each fader.