Operation Manual

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CyberLink AudioDirector
6. If required, use the following sliders to further remove the hum from the
audio:
Base frequency: use this slider to manually specify the root note of the hum
noise, if the detected hum is incorrect.
Reduction level: use this slider to set the amount of attenuation applied on
the hum noise.
Number of harmonics: select the number of harmonics the hum noise
appears to have.
Filter bandwidth: use this slider determine the width of the root frequency
and its harmonics. Dragging the slider left affects a wider range of
frequencies, while dragging it right will affect a narrower range.
Harmonic slope: use this slider to set the ratio of attenuation applied to the
harmonics.
7. If required, you can preview the repaired audio by selecting Restored
result and then clicking the Preview button. Select Original audio if
you want to play the original audio.
8. Click Apply to repair the audio.