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[production bible 2] Sub-bass

Posted: Wed Dec 03, 2008 11:59 am
by daft cunt
Plz correct/improve/add as needed.

"Sub-bass is a term used to describe audible sounds below 90Hz - sound in the range below this (under 16-17Hz) would be termed infrasound. Sound systems often feature a subwoofer that is dedicated solely to amplifying sounds in the lower bass and sub-bass range."
Source : Wikipedia

So the idea is to have the sub going up to ~90Hz. The exact frequency it should be cut at depend on the kick's frequency.
Let's say you HP your kick at 100Hz, then the sub should be LPed at 100Hz so they compliment each other without clashing.

There are several ways of creating a sub, here are the most common:
1 - using a unique waveform (sine, saw, square or triangle) will give you a nice linear sub.
NB : You don't need to filter out a sine wave as it doesn't have overtones.
2 - using detuned waveforms : take 2 identical waves (sine, saw, square or triangle) and detune them - let's say -.25 / +.25 semitone.
This will produce a phase effect and give movement to your sub but it'll also cause large volume amplitude and you'll need to compress it after filtering.
Great Massive tutorial by Subfocus here
3 - using a 808 kick : you don't have a TR-808? Grab that pack!
jobbanaught wrote:An easy option to get a powerful subbass is to take a 808 kick sample, put it in your favorite sampler and loop a single cycle of the waverform somewhere in the middle of the sample. The 808 kick is made of a sine and some additional white noise. The sine gives your sub that rattling low end pressure, and the noise adds overtones/grittiness = instant badass subbass!
You can find more tips about mixing your kick n sub in the Random bass tips thread.

Posted: Fri Dec 05, 2008 10:51 am
by jobbanaught
Thanks for all your work on the Production Bible - Respect!

Maybe add this for using an 808 sample:
An easy option to get a powerful subbass is to take a 808 kick sample, put it in your favorite sampler and loop a single cycle of the waverform somewhere in the middle of the sample. The 808 kick is made of a sine and some additional white noise. The sine gives your sub that rattling low end pressure, and the noise adds overtones/grittiness = instant badass subbass!

Posted: Fri Dec 05, 2008 10:59 am
by daft cunt
:wink:

Posted: Fri Dec 05, 2008 12:40 pm
by serox
Bamenda wrote:Is there a specific ADSR-configuration needed?
It will sound good as standard but it all depends how you want to use it really. What I do is have a high attack so it removes the start and layer another punchy kick with it.

Posted: Thu Feb 12, 2009 7:27 pm
by lewisr
What would you say is the BEST frequency to have your sub at?

kind of like, whats the natural frequency of your chest? there must be one frequency that you can feel the most.

Just a thought?

im probably completely wrong though

Posted: Thu Feb 12, 2009 7:33 pm
by Brisance
depends how fat you are.

Posted: Thu Feb 12, 2009 7:52 pm
by lewisr
Brisance wrote:depends how fat you are.
Image

That fat

Posted: Thu Feb 12, 2009 7:54 pm
by Brisance
slap your stomach and see how many times you wobble per second, I bet its in the infrasound range.

Posted: Thu Feb 12, 2009 10:13 pm
by Sharmaji
LewisR wrote:What would you say is the BEST frequency to have your sub at?

kind of like, whats the natural frequency of your chest? there must be one frequency that you can feel the most.

Just a thought?

im probably completely wrong though
think notes first, frequencies second. a low D/E/F always rumbles nicely.

Re: [production bible 2] Sub-bass

Posted: Thu Mar 19, 2009 7:13 pm
by rubadub
Daft tnuc wrote: 2 - using detuned waveforms : take 2 identical waves (sine, saw, square or triangle) and detune them - let's say -.25 / +.25 semitone.
Sorry if I'm being stupid, but why the extra semitone? -25 (-2 octaves and 1 semitone) instead of -24 semitones (2 octaves), does this give a different sound or something because I'd prefer to keep it to the normal octaves. Or am I being proper stupid??? Thanks in advance for any help.

Re: [production bible 2] Sub-bass

Posted: Thu Mar 19, 2009 7:21 pm
by contakt321
Rubadub wrote:
Daft tnuc wrote: 2 - using detuned waveforms : take 2 identical waves (sine, saw, square or triangle) and detune them - let's say -.25 / +.25 semitone.
Sorry if I'm being stupid, but why the extra semitone? -25 (-2 octaves and 1 semitone) instead of -24 semitones (2 octaves), does this give a different sound or something because I'd prefer to keep it to the normal octaves. Or am I being proper stupid??? Thanks in advance for any help.
I believe he is referring to minus 1/4th of a semitone like .25 semitones, not 25 semitones. This sort of slight detuning creates a "fatter" sound is really useful in all sorts of bass/synth programming.

Posted: Thu Mar 19, 2009 7:24 pm
by rubadub
I see, I thought I was being a bit of a plank.

Posted: Thu Mar 19, 2009 7:49 pm
by xxxy
use the 808 kicks from this pack

http://www.goldbaby.co.nz/tape808.html

worth every penny!!!

Posted: Thu Mar 19, 2009 9:59 pm
by jsilver
3xOsc Sub
Guaranteed to rearrange grandma's wrinkles!

1. Turn Osc 2 & 3 off.
2. Osc 1 to Sine if it's not.
3. Set root note to C8.
4. Adjust the volume ADSR to taste.
5. Grandma shit.

Re: [production bible 2] Sub-bass

Posted: Thu Mar 19, 2009 10:10 pm
by rendr
Rubadub wrote:
Daft tnuc wrote: 2 - using detuned waveforms : take 2 identical waves (sine, saw, square or triangle) and detune them - let's say -.25 / +.25 semitone.
Sorry if I'm being stupid, but why the extra semitone? -25 (-2 octaves and 1 semitone) instead of -24 semitones (2 octaves), does this give a different sound or something because I'd prefer to keep it to the normal octaves. Or am I being proper stupid??? Thanks in advance for any help.
.25 not 25

:roll:

what, you think your going to have a sine at C1 and C3 for you sub... :lol:

0.25 semitone aka 50 cents either way.

Posted: Thu Mar 19, 2009 10:31 pm
by Brisance
And 2 octaves apart would be perfectly in tune as opposed to detuned..
You people are lazy, you should type numbers out the proper way, so such confusions are avoided.
e.g 0.25 not .25

Posted: Fri Mar 20, 2009 10:58 am
by daft cunt
Brisance wrote:And 2 octaves apart would be perfectly in tune as opposed to detuned..
You people are lazy, you should type numbers out the proper way, so such confusions are avoided.
e.g 0.25 not .25
English friends plz correct me if I'm wrong but I'm pretty sure .25 is actually right.

Posted: Fri Mar 20, 2009 11:05 am
by serox
isn't 0.25 and .25 the same thing?