Friday, 3 May 2013

Audio Practical 3 (2/5/2013)

In this session we used the Marquee tool in Adobe Audition in order to cut out background noises in an interview e.g. as a bell which I never knew was possible.

To do this we had to bring up the Spectral Frequency Display (Shift + D) in order to see a sound wave that looked like a heat signature. If you have never seen this then please use the example image I took below to understand.


Using the Marquee tool to cut out red horizontal lines which represent sound anomalies, such as the bell mentioned above then, using the Spot Healing Brush tool to try and repair the line you should get something that looks like the below.    


A really useful technique we were shown was to highlight a section of background noise by going onto 'Effects', 'Noise Reduction/Restoration' and then 'Capture Noise Print' whilst making sure nothing is highlighted. Then go back through the above first two stages before selecting the 'Noise Reduction Process' in order to apply the separation of that certain area of sound to the whole track. Since we directly told the program what sounds we didn't want it made sure to get rid of them and therefore leave us with just the verbal interview.

The rest of the session was spent going over the sounds we collected last week and cutting out anything non essential. Thankfully my partner Ed remembered to save these sounds as I had forgotten to.   

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