You always hear this.. “mix with your ears, not your eyes.”
But I found myself in a situation.
My mix was going through a master buss compressor.. which is followed by a limiter.. which is a bit of a no no.. but whatever.. and.. I have this area in my production where I want.. to drive stuff harder.. on certain beats.. and do certain things… and playing it by ear… just wasn’t working.
So I throw a Motu Master Works EQ on my master buss.. which will gave me a visualization of the spectrum… turned out to be a brilliant thing to do…
What I found was.. well I found the sorta gaps in the frequency space.. there wasn’t really much in the way of gaps.. for the most part.. the frequencies were pretty well balanced… but I saw two opportunities to create the musical effect I was shooting for.
Opportunity 1
The first.. and “duhhh” thing was the sub bass frequencies. I say “Duhhh” because.. I had kinda spent a lot of time trying to keep the sub bass area empty accept for a synthesizer playing that roll.. and indeed the kick drum wasn’t really getting into those sub frequencies… This section of the track… in effect.. was still an intro.. still a.. we’re moving towards something… kinda part…
So you have a situation where everything’s been set up to clear up some frequency space.. and you got nothing in that space.. so there’s an opportunity for you….
Now my first reaction to this was to throw some basses in.. in that sub range.. see what happens.. and low and behold.. it worked.
But then I began to think… “hmm.. how am I EQing that Kick?” Like maybe what I should do is somehow set up the kick so that if I’m shaping it to work with the bass.. in the sections leading up to the entrance of the bass.. I should not be shaping the kick in that way.
But then I thought “wait.. the composition at this point is in part about the gradual increase of intensity, and so if the kick is already taking up all that space.. and then I take away from it as the bass comes in.. that might work against the compositional framework stuff.”
So I haven’t touched that element yet.. but I am thinking about it.. it may just be a question of how I balance these issues.
The second opertunity I found was actually in the higher frequencies.. probably starting around 1K… and really becoming more so around 2-5K…and in the 10-20k region.. there was a tun of empty space…
If you don’t mix regularly.. this probably all sounds like greek.. and so allow me to give some explanation of the implications and what nots.. of what I’m talking about.
Bass / Low Frequencies
Where I’m at with mixing right now.. I think of the real bass frequencies of being about 100Hz down.. and the sub bass as somewhere above 20Hz and down.
For both the bass and sub bass areas.. you gotta be kinda careful.. You want your stuff panned centrally.. you’ll very often need to be cutting stuff in there.. to add clarity.. you can’t really have over lapping elements in there… or over lapping elements represent a challenge.. of course most every bit of music you hear.. at least… will have the issue of the kick and the bass.
With the kick and the bass you really have two choices.. which is.. one of those elements will take up the sub bass area.. and the other will be cut before hand.. and you gotta do something so you can hear both elements together.. should they play at the same time.. and there’s.. well a lot to talk about with this.. but that’s not the issue I’m fighting with today.
So… this sub bass region.. the thing here.. well there’s basically 2 things here.. #1 the sub bass is felt more then it’s heard.. and #2.. whatever’s going on in the sub bass area.. it’s the nature of the sub bass frequency space.. that you can’t really have stuff going on super fast.. if you want a super fast kick drum, for instance.. it’s going to have less sub.. and there will be some kind of upward extension to give you that click…
The 1K and up range
There’s a lot to talk about here!!!
Our Ears
The first thing is.. the human ear.. is really able to get the most details.. really.. in this here 1k and up range.. that’s where the ears really do well… so this is usually where you want most of the production / focus / whatever… to take place in a mix.
So.. that my mix is sorta starting to be a little less loud around here… is kinda odd… and probably the ideal thing would be to change that.
20k… and maybe 10k to 20k.. but really 20k.. is the theoretically highest frequencies we can hear.. although ears do vary… and we tend to loos are ability to hear up this high as we age.
Analog Vs Digital
Now.. analog based mixing, recording, and production.. the nature of tape.. and how an analog works.. well one of the things about it.. is it’s always gradually taking off a bit of the high end frequencies.. and this is one of the reason people sometimes think of digital as sound harsh relative to analog.. and it’s a complaint among some critics.. lets call them.. that mixes really need to push this area less then they currently are.
There for.. there’s some reason to.. put a low pas filter.. around here.. and make it so there’s not really anything going on.. or not much going on.. which happens to be about what is happening in this production..
The Depth Issue
Now.. the other thing I’ll say.. is that when we are dealing with these higher frequencies.. these are frequencies that play a big roll in how you create depth in a mix: As sounds get further away from you.. they loose top end frequencies… One way to make something sound more in your face is to just add a little of these higher frequencies.
In how I’ve been mixing for.. I don’t know how long.. my technique for creating space.. involves sounds moving around in space.. including from far away to close up.. and very often nearly all the sounds in my mixing will move around in this depth plain.. there for nearly every sound.. just to make it easier for me.. will have a low pass filter on it.. that I’ll automate..
A low pas filter means that the frequencies below your target frequencies pass through.. the above frequencies get cut… I probably should have explained that earlier.
So.. even when I have the low pass filter’s frequencies set to as high as it’ll go.. it’ll cut off a bit of the top end.. which isn’t a negative.. because you probably want to cut that a bit anyway… just to keep stuff from sounding harsh, right?
So this probably the reason why the frequency balance of the track has the frequencies getting a bit quieter post 1K…. because so many of the sound get cut in order to create depth… and for the most part I never book anything as a part of all this…
Well.. times are a changing.. and how I work is in flux so…
The implications
Basically.. there’s a limited amount I can do with the sub frequencies.. but when I put in the sub bass… and had it more or less playing quarter notes.. what I was going for.. well it really worked.. but.. I couldn’t use speeding up the pace.. terribly well.. as a means of increasing the energy still further..
The high frequencies.. I took a look through all the synth patches I had recently added to the production.. looking for ones with a whole lot of high end.. and there was really only one that was really harsh that way..
But my thought was… that I’d have these sorta high frequency sounds.. coming from far way.. and then getting super in you’re face.. in the area where I was trying to really hit things hard.. and they would hopefully fix my problems…
So this would really have to be thought out.. in terms of the composition.. in a more complex way then the bass stuff.
Also.. it turned out that these were my Absynth patches that I had recently programmed.. and I had them set up so they all went through a kind of master Absynth channel.. and I was thinking of adding some high frequencies in there.. to help the cause little,