ChuckC
Let's say you are recording a rock band and you have the band lay 4 (or more) tracks of the same distorted rhythm part with slightly different tones/timbres... You pull up the 1st and work a compressors settings to give you that perfect blend of bite on the front edge & fatness, You get the attack & release set and it's pumping along with the rhythm just right. Now, Is it common practice to copy & paste that compressor with those settings to the other 3 guitar tracks that are playing the same part? I have done this before with good results and maybe adjusted the threshold a little more or less on some of the tracks, but I wonder if this is the wrong method?
There are quite a few answers to this...which you've received from bit and Bats. When doing the "same" guitar sound multi-tracked, I do what you and bit do. Ctrl/drag. Once the drag is there, as long as the sound was played using the same amp and guitar, you can leave it alone or make subtle tweaks in my opinion.
However, and this is where Bats and Matt have made interesting points to consider, Chuck. When layering, if you were to layer the same/similar sound 4 times, you do get stereo due to human timing errors. But for the most part, you will not get "full layering" because the sound is the same. You would need drastic eq differences, not subtle ones. Now, this is easy to do with eq, but for extreme impact, what Bats and Matt told you are the key.
Multiple rigs, different guitars, mic's etc are what makes the layering thing come to life. For example, let's take a look at a 4-guitar layer situation. Say we have two guitar players in the band. You track the first guy and his get his tone right, then you track the second guy and get his tone right. Say they use two different amps and guitars. You not only gain stereo sound from there being two different amps and guitars, but you get the human timing inconsistencies of two different players.
If you were to compare these two guitar tones to two of the same guitar tone played independently by ONE player, you will notice the two that were done using two different people with 2 different rigs and guitars, will sound much fuller giving you more depth and dimension. The tracks we record of the same sound by the same player will have just HIS human timing inconsistencies. When you record the same guitar sound 4 times, you only pick up little stereo enhancements. The down-side is, because the sound is the same, you pick up a volume boost of the same sound as well.
But let's get back to the 4-guitar attack layer. You recorded the guys one time each so far. Now, all real layering is...is like you creating an orchestra out of the guitar parts. The next two guitar sounds you may record to enforce the layer may be smaller sounding. Say the two you recorded already are the main guitars that will be the most up front. When you record two more, you use different sounds, maybe another guitar and amp etc, and create "the high end sizzle" of the layer with these.
Since we have the two main guitars panned the widest, you now have a choice of panning these two sizzly guitars just as wide so they add some top end to the ones you already recorded, or you can pan them slightly inwards to take up some additional space in the mix. Or you may NOT want sizzly guitars and may go for two super thick ones that may use a specific room to make them appear bigger and thicker than they are...and you may want these guitars wide panned, and you may bring in the original guitars a little tighter.
There are loads of combinations you can do. Most of the big studio's I've worked with in situations like this like to record 3 sets of guitars. The main guitars, guitars with a little more cut and presence, and then some thick, meaty guitars. Remember, these all create "the layered effect" because of the following:
Different guitars
Different tones
Different rigs
Different eq curves
Different pans
Different compression settings
Different rooms
Different pre-delay settings in verbs if need be
Different timing inconsistencies IF 2 guys play all the tracks.
If we just record four of the same sound (even if they are just slightly different) we lose a lot of the things from that list above that literally create what is known as true layering. You lose:
Different tones
Different guitars
Different rigs
Different compression settings due to the compressor being forced to be altered due to a totally new sound/approach
Different rooms (unless you use verb or impulses etc)
Different human timing inconsistencies IF one guy plays on all 4 tracks
As you can see, you lose a lot and now the layered sound becomes less apparent. So keep some of this stuff in mind and try experimenting on your own sometime so you can go into a studio situation with a little firepower to sell your clients. I enjoy tracking 2 of the same guitar sound in my stuff. Most times that is enough for me. I may add two more guitars with a little more presence on a chorus part of a song to just have it hit a little harder for that section. But for full layering in a solid "guitar orchestration" type layer, you want to always change it up if you can because it will really give you 1000 times more impact than tracking 4 of the same sound. Hope this helps, best of luck.
Matt: You know me too well. LOL! :)
-Danny