Sonnox Oxford Restore - Manual (Page 21)

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“Master Enable” – With Master Enable selected, all processing is active. If not selected, all
repairs are disabled, although all the detection circuits remain active.
The Master Enable, Audio and Diff buttons all provide smoothly interpolated and glitchless
audio switching. It is advisable to use these for auditioning, rather than using the host
application’s Bypass switch (which is commonly not interpolated).
Frequency Detect Section
“Auto” – Auto mode is the default tracking mode. In this mode the removal filters automatically
follow the peak frequency found in the peak profile. It is suitable for tracking a weak, slowly
wandering fundamental and operates over all three frequency bands.
“Fast” – Fast tracking mode allows the removal filters to automatically follow a quickly
wandering fundamental. This mode operates on MF and HF frequency selections only. The peak
profile is not active for Fast mode.
“Freeze” – For a fundamental that is a fixed frequency, once the auto mode has found the best
nominal frequency, you can freeze the nominal. In freeze mode, the removal filters follow the
value of the nominal frequency set by the big rotary frequency control.
“Sensitivity” – Start at a high value and reduce to the point at which the hum becomes audible
again, then push it up a little to make the hum disappear. Doing this correctly ensures least
damage to the signal.
“Alt Mode” – This allows two different modes for hum removal. Try both modes with the
sensitivity knob, and use the mode that allows the lowest setting of the sensitivity.
“Tone On” – Enables the onboard tone generator which can be useful for finding the frequency
of unusual hums, whines or whistles.
“Tone dB” – Allows you to set the level of the tone generator.
“Fine Adjust” – Sets the Frequency control to have a much finer range so that it is easy to
home into a precise frequency value. Holding down shift while moving the Frequency knob
enables an extreme fine adjust, where the frequency can be accurately determined to 0.0001 Hz.
If Fine Adjust is selected while in Auto tracking mode, the detector is forced into Freeze mode
and the Freeze mode button flashes. Exiting Fine Adjust returns to Auto mode.