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How to lower the loudest parts of the audio?
Sometimes I’m editing videos where are very short parts (gun shots etc.) which are excessively louder than other sounds. Its very time consuming if I make them quiter manually with volume envelepe and there are too many of such sounds. So I was wondering, how to adjust audio compressor to affect only sounds higher than -9db. Lets say, every sounds above -9db I do not want cross -9db. And I dont want to affect the other parts of the audio. Is this possible? What would you do in my situation? Thanks!
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11 Replies
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There are three ways to do this. The first is to adjust the level on that clip. If you put your cursor over the top portion of the audio clip on the timeline, the cursor should change to an up/down arrow. Simply drag that down a bit. Essentially this adjusts the level of that sound clip.
Another control is to place a limiter (VST) in your audio track to limit the levels coming from any sound clip on that track. But I’ve always found that putting sound effects in a seperate audio track to be much more managable.
The third way is to use a volume envelope. This lets put points on the timeline to adjust levels at specific points.
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1) The first way is not for me. I need to adjust only the level of the loudest sounds in the particular clip (not the sound level of the whole clip.
2) The second way sounds good to me, but I can find any limiter in Sony Vegas.
3) I know how to use volume envelope, but thats sometimes very lengthy, if there are a lot of places to adjust… -
You may know this already but if you hold down the shift key when adjusting your volume envelope, you can drag your volume up and down very easily, much easier than adding points to the volume envelope.
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How does that limit the volume change to apply only to the loudest parts of the audio? That is the usual reason for adding points to the envelope.
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It doesn’t. I misunderstood your question.
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The “Track Compressor” can be used as a limiter. Start with one of the presets.
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I guess, but I cant figure out how to adjust track compressor to work like that. When I set output volume to -9db it somehow lower the overal volume of particular track.
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The threshold will change when the compressor compresses or not and the ratio and attack adjust how much it compresses. With gun shots, I would experiment with a small section with gun shots and adjust the threshold until you dont hear normal audio change, just the gunshots. try setting the ratio to 4:1 — 10:1, Hope this helps, Danny Hays
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Hi Alan,
Don’t know if this will help, but I found this free program on the internet – called The Levelator, <https://www.conversationsnetwork.org/levelator>.
It works well in interview situations, but I’m not sure of what it does to the bit rate and/or frequency range. It is designed mainly for podcast use. If you find the quality acceptable, it will save you tons of time.
Cheers,Bruce Quayle
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How do you get the volume envelope (where is it?)?
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