Operation Manual

CyberLink AudioDirector

2. 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.

3. Click the Next button to go to step 2.

4. Select which range of audio you want to apply the hum removal to by

selecting one of the following:

Selected range only: select this option to only apply the hum removal to the

range of audio you selected and analyzed in step 1.

Entire audio content: select this option if you want to apply the hum removal

to the entire audio clip.

Select a different range: select this option to select a new range of audio

where you want the hum removal applied. This range can contain both the

hum and the audio content you want to keep.

5. 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.

Note: click the Save as Preset button once you are done to save the Hum

Removal settings as a new preset. The next time you need to remove hum

noise from audio that was recorded in the same or similar environment, you

can just select the preset from the drop-down in step 1.

6. Click Apply to repair the audio.