What is a “resolver” and what is meant by “resolving” ?
A. Resolving is the process used to obtain lip-synchronization between two different mediums. A resolver is an electronic device that matches the speed of the sound recorder it is connected to (usually called the slave) to some other reference (known as the master). The most common use for the resolver is transferring audio recorded in the field to an editable medium such as magnetic film or video tape. Without the resolver it would be impossible to provide for an accurate, frame-for-frame relation between two dissimilar devices since their running speeds would be completely independent of each other. The resolver can overcome this problem by comparing the frequency of the 60hz. signal from the sync track recorded on the tape to the master frequency it has been set to. If the resolver detects a difference between these two frequencies it will create an error signal equal to this difference. The error signal is returned to the slave recorder causing a speed correction to take place unti
