Blackmagic Design DV/RESSTUD User Manual

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246

Lesson 9 Mixing Sound in Fairlight: Exploring theInterface

6 In the Frequency section, click the 60 Hz button to set the De-Hummer to notch out

the60 Hz frequency.

The graph in the De-Hummer displays frequencies along the bottom. Low frequencies

are to the left and higher frequencies are to the right. The dips in the graph indicate

thenarrow bands of frequencies that are being cut out or diminished in the clip.

7 In the transport controls above the timeline, click the loop button, and press

Option-/(slash) in macOS or Alt-/ (slash) in Windows to loop the playback from the

intoout points.

8 As the clip plays, drag the Amount dial to adjust the amount of hum that is removed.

As you drag the Amount dial clockwise, you are lowering the volume of the selected

frequencies (60 Hz, in this case) in the voiceover clip. So, you are also altering the

sound quality of the voice recording. It’s a delicate balance to decide how much hum

toremove before you lose too much vocal quality.

Looking at the graph, you might think that by selecting 60 Hz that the filter will notch

out only that frequency; but simply removing one frequency may not fix the problem.

You can adjust the Slope control to filter out additional frequencies that may be

contributing to the unwanted hum.

9 Drag the Slope control until you hear the least hum in the voiceover.

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Blackmagic Design DV/RESSTUD DaVinci Resolve Studio Activation Card