The professional way, though, is to do the transfer on a special sound recorder which is synchronised electronically to the actual video pictures.
It is, in fact, sensible to take your sound recorder along with you whenever you set off on a major shoot.
Sound effects utilized throughout the game have the quality of a playback from a keychain's portable digital sound recorder.
A digital sound recorder can typically store around 200 hours of clearly intelligible speech in 640MB.
Before magnetic recording, a double-system sound recorder was either a sound camera or a phonograph lathe.
Today, digital video cameras and digital sound recorders have very accurate crystal time references and so can be used for double-system video production.
Auricon also manufactured separate, stand alone, optical sound recorders such as the RT-80 (200 foot capacity) and the RM-30 (1200 foot capacity).
"We've finished the test run," Thora spoke calmly into the invisible sound recorder of the automaton.
He helped to build the first kinescopic recorder and stereophonic sound recorder for Warner Brothers.
The recorder could be used as a conventional sound recorder, and included a built in microphone in the bottom left hand corner of the unit.