Moulton Laboratories
the art and science of sound
Principles of Multitrack Mixing: The Kick Drum/Bass Relationship
Dave Moulton, assisted by Peter Alhadeff and Alex Case
February 1993

Pop and rock means kick drum and bass. Mixing them well is essential.

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The Synthesis phenomena

I’ve always figured that this locked-up interaction between kick and bass would be a natural for synthesis programmers to work on. There is a wonderful opportunity here to generate meta-instruments. It shouldn’t be too hard to create a complex voice with the attack and body timbre of the kick drum and the sustained pitch timbres of an electric bass, with some really interesting MIDI control capabilities. There is no reason not to generate a whole array of such instruments, with some really wild dynamic and timbral qualities, servicing the kick-bass set of musical functions that we described early on in this article.

When I checked this idea out with some of our synthesis faculty at Berklee, they thought it was an interesting idea, but the way they program is really derived from the multi-track recording model: they take a kick sound and work on it till they like it, and then a bass sound and work on it till they like it, and then they mix them together and so on. So here’s a place where common practice in multitrack has gotten in the way of seeing some of the potential of a higher order musical function that is no longer dependent on its acoustical origins.

So, it’s yours for the finding and developing. Maybe H&SR will front a contest for the absolutely most whacked out kick-bass sound generated by a reader, and if they’ll do the paperwork, why, I’ll contribute a bottle of really good unblended scotch whiskey (this is a serious avocation of mine) to the reader who cranks out the wildest recorded example of a kick-bass meta-ax (the editor and his family are not allowed to enter)! Happy sounds!

Dave Moulton serves as the beater for the Music Production and Engineering Department at Berklee College of Music. Peter Alhadeff teaches basics and Alex Case just gets a kick out of things.
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COMMENTS

Ohio     Jan 08, 2007 06:55 PM
Amazing article...

Thanks!
Joshua 
     Jan 27, 2011 11:44 AM
Hi, my compliments for this article, it really open mind.
i have a question for you; can you explain in dept the technic called "Pitched kick drum"?
for example:
what effect unit (from sequencer or 3rd part plugin) can make this?
how to choice what frequency target i have to set?

i hope it's no too late :D
thanks!
marco 
USA     May 02, 2011 06:23 PM
Just cruising around and found this site and set of articles - some good stuff here!!

marco - the thread is pretty old! the article is from 1993 - probably posted later AND the last comment was a thank you from 2007!!

but what you may want to consider is that your question has more than one answer depending on your process - If you are recording a real drummer then the entire kit should be tuned appropriately for the song AND room - it can be a challenge to discern the tonality of a kick, but that being said and with the knowledge that there is always a fundamental frequency - we push on-



Using samples, synthetics or combos (this might originate from software,hardware or realware) you may want to pay attention to the fundamental frequencies of your sound or layers of sound. Some software and hardware provides the ability to simply set.

A frequency analyzer may help you if the sound doesn't have strong harmonics near the fundamental.

Use a frequency to note chart or calculator- google will turn up these types of tools.

You might also use a vocode function to trigger a pitched sound with a kick envelope this could be mixed with or replace the trigger sound - a simple side chain setup can be used to trigger pitched sounds - sine waves have been quite popular for this.

If you are asking what the relative pitch should be - you will find no single "correct" answer. Key notes and the likely intervals as suspects could be tried.

Also don't forget about auto-tune - this can come in handy particularly if you want to change the sound/pitch according to song parts-

I'm pretty sure there are other ways to approach this-
audiodidactic 
india     Jun 26, 2011 11:50 AM
t's very Informative and helpful speacilly for the freshers, and i feel if it would have more questions added
seo 
     Sep 26, 2011 01:05 PM
Great Article, exactly what I was looking for.
Dane 

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