That “fixed oscillator” answers my somewhat silly question. Thanks!
You are a master of your world.
> On Mar 6, 2020, at 12:38 PM, Jamie Howarth <[log in to unmask]> wrote:
> Lou -
> The bias oscillator is a fixed oscillator that has no interest in the speed of the machine, varispeed, dragging your thumb on a flange, spilling coffee in the motor. It doesn’t care, it happily outputs a constant frequency and what is at the record head is constant in frequency.
> “How they interact” is how the wow and flutter correction happens. The only interaction that affects the frequency of the *recorded* bias upon *playback* is the speed of the machine - and the frequency shifts in that recording of the bias oscillator are subject to and thereby reflect exactly the same speed variations as anything else in the audio recording - all caused by the transport. Since they were originally a fixed tone, in effect a carrier, the machine “broadcasts” its motion as in the variations of that tone.