This probably won t be an issue as long as the noise was low enough to start with.
How to fix noise floor audacity.
The level above which compression is applied to the audio.
How to reduce noise floor in audacity noise gate and noise reduction duration.
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A noise profile is just a few seconds of audio that audacity will filter out it is important not to highlight anything other than the beginning noise otherwise audacity will filter out that as well.
The further left you move the threshold bar the more background noise you hear.
Try to keep it between 15 to 18 db.
There is a free plugin for audacity that you can use to check and see if your audio passes all the tests.
Attack time 1 5 to 1 9 secs.
This is mainly useful when compressing speech to prevent the gain increasing during pauses and so over amplifying the background noise.
Putting it all together.
If that happens undo the noise reduction and run it again lowering the number in the noise reduction amount box in audacity.
Noise floor 40db.
Release time 10 12 secs.
My question relates to the fact that when i select a moment of room tone in twisted wave it tells me that the noise floor is about 53db but when i analzye it in audacity it looks much quieter than that closer to 65 3db.
Try these settings to play around with.
Noise reduction is the constant challenge for the recording engineer as perhaps the most significant aspect of improving recording quality following the advent of realistically priced recording hardware and free software like audacity anyone now can be their own recording engineer and grapple with the same problems.
Use a limiter to keep your db range locked in.
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Threshold 15 db to 18db.
