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Monday, April 30, 2012

6 Tips For Balancing The Bass And Drum Mix

The biggest bass drum from Bobby Owsinski's Big Picture production blog
Perhaps the most difficult task of a mixing engineer is balancing the bass and drums (especially the bass and kick). Nothing can make or break a mix faster than the way these instruments work together. It’s not uncommon for a mixer to spend hours on this balance (both level and frequency) because if the relationship isn’t correct, then the song will just never sound big and punchy.

So how do you get this mysterious balance?

In order to have the impact and punch that most modern mixes exhibit, you have to make a space in your mix for both of these instruments so they won't fight each other and turn into a muddy mess. While simply EQing your bass high and your kick low (or the other way around), might work at it’s simplest, it’s best to have a more in-depth strategy, so consider the following:

1) EQ the kick drum between 60 to120Hz as this will allow it to be heard on smaller speakers. For more attack and beater click add between 1k to 4kHz. You may also want to dip some of the boxiness between 200-500Hz. EQing in the 30-60Hz range will produce a kick that you can feel, but it may also sound thin on smaller speakers and probably won’t translate well to a variety of speaker systems. Most 22" kick drums are centered somewhere around 80Hz anyway.

2) Bring up the bass with the kick. The kick and bass should occupy slightly different frequency spaces. The kick will usually be in the 60 to 80Hz range whereas the bass will emphasize higher frequencies anywhere from 80 to 250Hz (although sometimes the two are reversed depending upon the song). Shelve out any unnecessary bass frequencies (below 30Hz on kick and below 50Hz on the bass, although the frequency for both may be as high as 60Hz according to style of the song and your taste) so they're not boomy or muddy. There should be a driving, foundational quality to the combination of these two together.  

A common mistake is to emphasize the kick with either too much level or EQ, while not featuring enough of the bass guitar (see the graphic on the left for a good visual of what it sounds like). This gives you the illusion that your mix is bottom light, because what you’re doing is shortening the duration of the low frequency envelope in your mix. Since the kick tends to be more transient than the bass guitar, this gives you the idea that the low frequency content of your mix is inconsistent. For Pop music, it is best to have the kick provide the percussive nature of the bottom while the bass fills out the sustain and musical parts. 

3) Make sure that the snare is strong, otherwise the song will lose its drive when the other instruments are added in. This usually calls for at least some compression, especially if the snare hits are inconsistent throughout the song. You may need a small EQ boost at 1kHz for attack, 120 to 240Hz for fullness, and 10k for snap. As you bring in the other drums and cymbals, you might want to dip a little of 1kHz on these to make room for the snare. Also make sure that the toms aren't too boomy (if so, shelve out the frequencies below 60 Hz). 

4) If you’re having trouble with the mix because it's sounding cloudy and muddy on the bottom end, mute both the kick drum and bass to determine what else might be in the way in the low end. You might not realize that there are some frequencies in the mix that aren't really musically necessary. With piano or guitar, you're mainly looking for the mids and top end to cut through, while the low-end is just getting in the way, so it’s best to clear some of that out with a hi-pass filter. When soloed, the instrument might sound too thin, but with the rest of the mix the low-end will now sound so much better and you won’t be missing that low end from the other instruments. Now the mix sounds louder, clearer, and fuller. Be careful not to cut too much from the other instruments, as you might loose the warmth of the mix.

5) For Dance music, be aware of kick drum to bass melody dissonance. The bass line over the huge sound systems in today's clubs is very important and needs to work very well with the kick drum. But if your kick is centered around an A note and the bass line is tuned to A#, it's going to clash. Tune your kick samples to the bass lines (or vice versa) where needed.

6) If you feel that you don't have enough bass or kick, boost the level, not the EQ. This is a mistake that everyone makes when their first getting their mixing chops together. Most bass drums and bass guitars have plenty of low end and don't need much more, so be sure that their level together and with the rest of the mix is correct before you go adding EQ. Even then, a little goes a long way.

While these aren't the only mix tips that can help with the bass and drum relationship during your mix (you can check out either The Audio Mixing Bootcamp or The Mixing Engineer's Handbook for more), they're a great place to start. Remember, go easy on the EQ, as a little goes a long way.

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9 comments:

Jordan said...

I can never see too many ideas on how to handle the low end (your previous post on the subject, "Getting A Bass Sound - The Drum And Bass Blend," was great). This raised a question for me: in the second point you mentioned "shelve out any unnecessary bass frequencies…" and while I was assuming you meant high passing (which is an extreme shelf), it made me curious about the different filters and how and when you would use them. A post on filters, shelves, notches, and slope would be awesome.

Bobby Owsinski said...

Good idea, Jordan. You can check this post out for more info - http://bobbyowsinski.blogspot.com/2010/03/magic-high-pass-filter.html

Rickcperry said...

The above link is broken :( I just wrote a blog on hi passing the kick drum. I love what it does to the sound!
Rick Perry
rickcperry.com

Ian Chang said...

Hey Bobby, what's your thoughts on side-chaining the low end freq's on the kick? it's become a staple of dance music production and I'm wondering if proper EQ can achieve the same results. Is side-chaining just a fad or should dance music producers really learn to use it properly?

Bobby Owsinski said...

There's no right or wrong way, Ian. It's whatever the track calls for since each one is different. That said, I wouldn't think that a well-recorded kick would need that kind of enhancement often in any music other than dance music.

Unknown said...

Hi Bobby while reading this article you talk
About shelving out on the kick and bass So did you meam shelving like a 6db/octave? Or a real cut like more from 24db/oct and more? I was just wondering thanks in advanced

Bobby Owsinski said...

I usually set it at 12dB/oct, but there's no hard and fast rule. Use whatever works for the situation.

Unknown said...

Hi Bobby thanks for answering but than if you say 12DB/oct are you talking about a low cut (first button on top from the left? or a shelf like the second button on the top from the left? in the eq of the picture provided? https://static.gearslutz.com/board/imgext.php?u=http%3A%2F%2Fwww.lydmaskinen.dk%2Fforumpics%2Flogic-channel-eq-hi-prec.png&h=6e612c7ee9e5c49f5eebac913c399324

Thanks again for clearing thins up

Kind Regards,

Redjesh Behari

Bobby Owsinski said...

A low cut filter is best, reDJesh, but if one isn't available, then you can use a shelving EQ, but you won't get the same results.

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