Tips & Techniques:Mix Buss Compression by Charles Dye

Compressing the Stereo Mix Buss

There are essentially 3 ways to use buss compression on your mix.

1. Put it on near the end of the mix.
2. Put it on from the beginning of the mix.
3. Don't put it on @ all.

Near the End of the Mix

The first is an approach I used for a number of years. When I insert a compressor near the end of a mix, I will first work to make my mix sound as big and powerful as possible without it, and then once I put it in, at about 4/5's of the way through, the mix will become even bigger. I usually use a softer less aggressive style of compression this way, because the individual tracks might have a bit more compression on them.

From the Beginning of the Mix

The second approach is to insert the compressor at the beginning and mix into it. It can have a number of advantages over placing the compressor on near the end. I tried mixing through a compressor when I was a younger engineer, but @ the time I wasn't very satisfied with the results. So, a few years ago I tried it again, + this time I decided to stick with it for awhile to really get a handle on it. And after a few mixes I really liked both the sound + the process of mixing thru a compressor.

If you're used to mixing without a compressor across the buss it takes some getting used to. The dynamics of the mix don't react the way you would normally expect them to, so you can't just try it once. You need to do a number of mixes, so you can familiarize yourself with this new limited dynamic response.

I've found it has a few advantages. One, it helps bring the mix together much quicker. Two, I find myself not needing as much compression on individual tracks to get the sound I want. Three, the mix requires less automation to bring out all the elements. Four, and most of all, mixing though a compressor changes the way I approach a mix. I'm able to get a very big + powerful sound very quickly with just the kick, snare, bass + hat. Then I just begin to fill the other instruments in around them.

To establish my starting levels for the mix, I first set my kick + snare level peaking around -10 dB on my DAW's stereo buss meters without the compressor, but from that point on the compressors goes in + never comes out. I generally use a Ratio = 2:1, Attack = 4-10 ms, Release = approx. 250-300 ms (set about to 8th note). I've used many different plugz for this, including RenComp, Impact, + Waves SSL, but I'm currently using URS Channel Strip Pro.

With most of the music I've been mixing lately (rock or other aggressive styles) 4 dB of compression has been sounding really good. It may sound like a lot, previously when placing the compressor over the buss towards the end I would hit it only 2 to 2.5 dB, but I also had more compression on the individual tracks. Since I now use less individual compression, it probably works out to about the same amount of compression overall, just a different way to apply it.

Mixing this way gives me a sound that's very different than the more controlled sound of individual compression, a lot of automation, and light compression on the bus. It really sounds much more exciting. Explosive. As if things are at the brink of popping through the speakers. I love it.

I should also add that this really isn't considered mastering compression. Compression across the stereo buss while mixing is done all the time on most of the records you own. Whether inserted at the beginning or towards the end it's been a pretty standard technique for decades done by engineers all over the globe. If you need anymore proof, I have three letters: S - S - L.

None @ All

Mixing with compression is not the only way to go, another way is to use no Mix Buss Compression @ all. This can be more work, but the results can be amazing, creating a very open + airy sound. I just recently mixed an entire album where I wanted a more dynamic sound than I usually go for, so I didn't use any Mix Buss Compression. It required more automation, but the end result had a lot of depth + subtlety that would have been lost if I compressed it more aggressively.


©2008 Charles Dye

__________________
Turn Me Up!™ – Bringing Dynamics Back to Music (www.TurnMeUp.org)

MySpace – Bands, Models + Spam... kudya ask 4 more?
MiLaR Forum – Advanced Mixing Techniques + MiX iT! Global Mixing Event
Recent Projects – Indie, Alternative + Modern Rock
Mix It Like A Record – DVD/DAW Session Based Mixing Course

Created by Charles Dye, 17th January 2008 at 04:40 PM
Last edited by mw, 27th March 2012 at 03:05 PM
Last comment by ScumBum on 21st January 2008 at 04:17 AM
4 Comments, 48,577 Views



(4) Comments for: Mix Buss Compression by Charles Dye Page Tools Search this Page
#1
17th January 2008
Old 17th January 2008
  #1
Gear addict
 
dwall's Avatar
 
Joined: Jul 2006
Location: Chicago
Comments: 332

Awesome post! I love how you're not saying one way is The Way.

Question: (I mix ITB, btw) I understand why people put the compressor pre-fader, but I actually prefer the sound of it post-fader (even if there's a long fade; I like the gradualness of it and how stuff pokes out). I've heard of at least one respected engineer putting it post-fader. Do you ever put it post, and if so is it dictated by the characteristics a particular song, or would it be more of an album-oriented stylistic choice?
#2
19th January 2008
Old 19th January 2008
  #2
Lives for gear
 
peeder's Avatar
 
Joined: Aug 2006
Location: No longer participating here.
Comments: 6,705

There's actually another way:

4) Mix thru a blend of direct and compressed busses, using the technique called parallel compression.

You will often need to delay compensate very precisely in order to not have phase issues introduced by this configuration. Aligning impulses manually using sample-accurate delays is probably the most effective means of ensuring phase alignment with parallel compression.

(c)2008 peeder.
#3
19th January 2008
Old 19th January 2008
  #3
Gear maniac
 
BorrelNote's Avatar
 
Joined: Jan 2005
Comments: 227

Cool ! Thanks for the description and sharing.. Much appreciated ! Is there a reason you chose URS channel strip pro above Waves 'the real thing' SSL ? Mind sharing the setting for URS you use ?

best,
BorrelNote
#4
21st January 2008
Old 21st January 2008
  #4
Lives for gear
 
ScumBum's Avatar
 
Joined: Jan 2006
Location: San Fransisco , BayArea
Comments: 2,406

Charles is cool
Reply

Bookmarks
Page Tools
Search this Page


Posting Rules
You may not create new articles
You may edit articles
You may not protect articles

You may not post comments
You may not post attachments
You may not edit your comments

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
 
Register FAQ Search Today's Posts Mark Forums Read

SEO by vBSEO ©2011, Crawlability, Inc.