A range of new sound manipulation practices were explored using improved media manipulation methods and operations such as speed variation.

He also found ways to eliminate speed variations that became noticeable near the end of each reel.

The vast majority of motors operate at a fixed speed and have little need for continuous speed variation.

It also absorbs small, fast speed variations, caused by "cogging", which in other designs are heard as "flutter."

But it has been proposed that the speed variation with each pedal stroke when riding up a hill explains such an advantage.

Thus increased rotating mass may slightly reduce speed variations, but it does not add energy requirement beyond that of the same non-rotating mass.

By the nature of the motion, the speed variation is negligible over the period of the oscillation, so:

These speed variations can cause load-sharing problems when differently sized motors are mechanically connected.

A good turntable will have wow and flutter values of less than 0.05%, which is the speed variation from the mean value.

It also had the advantage that speed variations due to mountain crests and valleys could be incorporated.