Operation Manual

79
Restoring Audio
Remove 50Hz: select this option to remove all audio that is in the 50Hz
frequency range band.
Remove 50Hz and the harmonics: select this option to remove all audio that
is in the 50Hz frequency range band. This option will also remove any
corresponding harmonics.
Remove 60Hz: select this option to remove all audio that is in the 60Hz
frequency range band.
Remove 60Hz and the harmonics: select this option to remove all audio that
is in the 60Hz frequency range band. This option will also remove any
corresponding harmonics.
2. Use the Reduction level slider to set the amount of attenuation applied on the
hum noise.
3. 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.
4. Click Apply to repair the audio.
Advanced Mode
For hum noise that is harder to remove, the advanced mode lets you select a region
of the audio that contains the hum so CyberLink AudioDirector can detect it. Once
detected, you can then customize its removal using a series of parameters.
In Advance Mode, do this:
1. In step 1, do one of the following:
Select the first option and then select a range of the audio that only contains
the hum you want to remove, i.e. devoid of the audio you want to keep in the
file. See Range Selection for more information on selecting a range of an
audio file. Next, click the Analyze button to analyze the range of audio. Doing
this creates a noise profile that CyberLink AudioDirector uses to remove the
hum.
Note: you can click the Hum button to listen to the detected noise, if
required.
Select the second option and then Select a preset from the drop-down. Select
the preset that best fits the frequency of the hum you are trying to remove.