Wednesday, 10 December 2014

What Noise Needs Reducing?


In terms of my narration, you can hear a hum when Angela is narrating, which is quite irritating as you can hear this on the film. So I decided to do some research to see how I can reduce or more importantly remove this hum.

I found on the FCP website a link saying how this can be removed.
As well as this, I looked on YouTube to find a similar video.

http://www.fcp.co/final-cut-pro/tutorials/369-removing-background-noise-from-audio-in-final-cut-pro-using-soundtrack-pro


https://www.youtube.com/watch?v=s5eDwOZVVSw


After watching the tutorials, I tried it on the voice narration myself. The tutorials firstly mentioned to make the audio boost on 'voice enhance', so that the audio focuses on the narration instead of all of the audio. I then checked the audio graph (not sure what the correct terminology is) to adapt it to how they say it should be, which you can see in the image below.

After this, I then used FCP's presets to boost the narration and reduce the background noise. This was simply done by using the loudness tool to boost the narration, followed by the background noise removal tool. I had a little play with this and when it's on it gives the narration a tinny sound if the amount is too high, so I only had the amount on a bit.

Left: Audio graph. I altered it to how they say it should be in the tutorial to help to balance the audio
Finally, I then turned on the hum removal tool and changed it to 60Hz. This removes all frequency audio levels which are 60 and above, helping to get rid of the annoying hiss sound on my narration. This works really well and now you can barely hear the humming sound plus the narration is boosted making it seem more effective and generally just sounding better. 





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