Dynamic Processing (compression setting)

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VictorGalaxy

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I was messing around with "dynamic processing" yesterday, and I find "limit soft -6dB, and "limit soft -12dB" presets are pretty effective. However, I realize that it somehow make my "breathing noise" and "lip noises(when we open our mouth)" louder. Then I realize that those "limit soft" preset put some "output gain". So if we put output gain more than 0, our breathing/lip noises will be louder.


So now, I decide to do some custom presets. I think I found a compressor setting that may be good. I hope you guys can try it and see if it is effective or not, is it LOGICAL to do that, and whether if it decreases the overall quality...

Here is the settings/steps: (I click on "Limit Hard -3dB", cuz they have 0 output gain).

Select your vocal track. (Ctrl-A to select the whole track)
Go to Effect> Amplitude > Dynamic Processing
Click on "Limit Hard -3dB"
Click on the the "Traditional" tab
Change the ratio from 999 to 2. So the ratio should be 2:1
Click "Add" and named your custom preset.

Also, I'm not sure what to do for the "Band Limiting" Tab, by default, it's 0 to 24000hz. But I guess we should limit it somehow, but I'm not too sure...
 
sikter said:
change ratio from 999 to 2???
I don't think so.
Click to expand...

For some reasons, I got a better sound quality with ratio of 2:1 than 999:1....I wonder why.... Like 2:1 is around the same sound quality as before. And the 999:1 make my sound a bit distorted...
 
VictorGalaxy said:
... However, I realize that it somehow make my "breathing noise" and "lip noises(when we open our mouth)" louder. Then I realize that those "limit soft" preset put some "output gain". So if we put output gain more than 0, our breathing/lip noises will be louder.
Click to expand...
That's correct but it also follows exactly the nature of reducing the dynamic range -soft should be louder (if you and output gain), or loud is only brought down if you don't add gain.
The trick then becomes getting it so that it insn't pushed so hard that it goes past the point of improvment.

The problem with me trying your' settings is that yours might need some quick 4:1 off the top where mine might want some nice slow smoothing at 2:1 digging in deep to bring out the breathy' sounds. :p
:D
 
mixsit said:
The problem with me trying your' settings is that yours might need some quick 4:1 off the top where mine might want some nice slow smoothing at 2:1 digging in deep to bring out the breathy' sounds. :p
:D
Click to expand...

hmm I'm not sure if I understand you correctly, but do you mean it would be better for me to put 4:1 instead of 2:1 in the above setting?

If I understand the ratio thing correctly, 4:1 means if the sound go 4dB above(not sure if it does for under too) the threshold(which is -3 in the above setting), then it will become 1dB above the threshold(so it would become -2).

So basically, what kind of situation should we use 4:1 or 2:1...what will be the difference?

Also, any idea if we should change the "Band Limit"? (It's from 0hz to 24000hz by default)
 
VictorGalaxy said:
hmm I'm not sure if I understand you correctly, but do you mean it would be better for me to put 4:1 instead of 2:1 in the above setting?
Click to expand...
No. It was a way of say saying that different tracks need different solutions. Comparing settings would be meaningfull if we were both sitting here with the same track, compressor and mix.

So basically, what kind of situation should we use 4:1 or 2:1...what will be the difference?
Click to expand...
This would be a good place to try an experiment; Start with a ratio of 2:1, threshold about 10 db below peak. Now with no other changes, play with attack times; 100ms, 50ms, 20ms, 2ms. This will have much more effect on the sound and way more or less reduction than 2 vs 4:1.

Also, any idea if we should change the "Band Limit"? (It's from 0hz to 24000hz by default)
Click to expand...
Don't know but it sounds like it might be a frequency selection for the compressor's dector.
 
VictorGalaxy said:
I was messing around with "dynamic processing" yesterday.
Click to expand...

You have a fundamental lack of compression knowledge... Which is quite common and O.K. But you need to remedy this.



Read everything you can from HERE and come back if you need any help. ;)
 
mixsit said:
No. It was a way of say saying that different tracks need different solutions. Comparing settings would be meaningfull if we were both sitting here with the same track, compressor and mix.

This would be a good place to try an experiment; Start with a ratio of 2:1, threshold about 10 db below peak. Now with no other changes, play with attack times; 100ms, 50ms, 20ms, 2ms. This will have much more effect on the sound and way more or less reduction than 2 vs 4:1..
Click to expand...

Ok, but there are 2 attack/release time setting in adobe audition 1.5.
They have attack/release for "Gain Processor" and for "Level detector". Which one should I change?
 
Ok you got me there. I don't have a clue with that one. :)
No on-line help file with the prog?
 
I've found that the 'Kill Mic Rumble' feature or whatever its called in the FFT Filter function is ideal for removing plosives and heavy breath noises. Guessin it has something to do with removing those frequencies. I find it better than any of the other Filters for such a job.
 
mixsit said:
Don't know but it sounds like it might be a frequency selection for the compressor's dector.
Click to expand...
Not only that. Also the effect only take place in that range, including the gain settings, hence you get an EQ'ing along with the dynamic processing.
 
I would personally find a freeware VST compressor to work with until you get the hang of it. Also read some articles on how to use compression.

Once you understand what everything means and what it does, then use the one included with Audition if you still want to.

I find that the interface of their dynamic processors are a bit advanced for someone new to compression.
 
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