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Killing only low frequencies with sidechaining
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golem
IsraTrance Full Member
Started Topics :
109
Posts :
70
Posted : Jan 19, 2010 01:15:40
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As many of you know, it is quite common practice to sidechain an ordinary compressor of bass track with the signal of kick.
I was wondering that is there some easy way to use the signal of kick for compressing only one band, or EQ.
Lets say I notice that the bass masks the kick and I want to get the kick hearable. So easiest way would be ducking with an ordinary compressor. But it also lowers high frequencies that are not masking the most energy of the kick, and I think that maybe in some situations you would want to keep the high frequencies.
Two obious solutions would be a multiband compressor where you sidechain only compression of the lowest band, and upper bands are bypassed or disabled. Or a low shelf equalizer with moderate slope where gain always goes down as kick goes up and when kick fades, it comes back up. I am using ableton live for composing. I know that in some softare (fruity..?) you can extract the kick strength with some effect and use it to modulate almost anything, but is this possible in Live or can you do this in Live in some other way..?
 
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Elad
Tsabeat/Sattel Battle
Started Topics :
158
Posts :
5306
Posted : Jan 19, 2010 02:17
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greede
Started Topics :
9
Posts :
82
Posted : Jan 19, 2010 02:40
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Colin OOOD
Moderator
Started Topics :
95
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5380
Posted : Jan 19, 2010 03:36
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If you usebthe phase-inversion sidechaining method, you can put a LPF on the sidechain group and only the bottom end will be sidechained.
How: (SX/Cubase 5)
Set up a stereo group and invert its phase. Insert a gate on it that's triggered from the kick. I use Kjaerhus GAG-1SC, triggered from a MIDI track copying the kick pattern. Set up the gate with a very quick attack and a release of about 200ms. Now send the bass to the group at a level of 0dB and play the kick and bass together; you should hear the bass ducking out completely when the kick hits. Tweak the gate time constants until you're getting the groove you want. If you don't want the bass to duck out completely, reduce the send level to the sidechain group. Try values of -1dB, -3dB and -6dB.
What's happening here? Put simply, when the gate opens sound is passed through it according to the send level, and because the phase has been inverted it then cancels out with the original sound. When sending at 0dB, the inverted gated signal is the same level as the original, and the two cancel completely. Reduce the send level and the gated inverted signal becomes quieter than the original, and cancellation is only partial, meaning the sound doesen't fade out completely.
To sidechain just the bass frequencies, insert a LPF after the gate. Make sure the resonance is turned right down if it's a synth filter. The cutoff frequency of the LPF determines the frequency below which the sidechain effect will work. This is because now, only the low frequencies are being passed by the gate, so only the low frequencies are being cancelled out and reduced in volume when the kick hits.
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Contact for bookings/mastering - colin@oood.net |
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Zoopy
IsraTrance Junior Member
Started Topics :
44
Posts :
538
Posted : Jan 19, 2010 04:26
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Ableton's Compressor will do this too I believe.. |
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sp0ok
IsraTrance Junior Member
Started Topics :
22
Posts :
114
Posted : Jan 19, 2010 08:15
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The voice in this tutorial sounds synthesized.
"Do not try and bend the spoon. That's impossible. Instead, only try to realize the truth."
Neo: "What truth?"
Spoon Boy: "There is no spoon." |
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Soundmagus
IsraTrance Full Member
Started Topics :
67
Posts :
633
Posted : Jan 19, 2010 09:32
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BlueCatAudio plugins do this although they are a tad complicated.
Tutorials coming soon!
Mark
Check out my site for Video tutorials and other tips & Tricks
http://www.music-production-videos.com |
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gutter
Inactive User
Started Topics :
54
Posts :
3018
Posted : Jan 19, 2010 13:34
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Quote:
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On 2010-01-19 03:36, Colin OOOD wrote:
If you usebthe phase-inversion sidechaining method, you can put a LPF on the sidechain group and only the bottom end will be sidechained.
How: (SX/Cubase 5)
Set up a stereo group and invert its phase. Insert a gate on it that's triggered from the kick. I use Kjaerhus GAG-1SC, triggered from a MIDI track copying the kick pattern. Set up the gate with a very quick attack and a release of about 200ms. Now send the bass to the group at a level of 0dB and play the kick and bass together; you should hear the bass ducking out completely when the kick hits. Tweak the gate time constants until you're getting the groove you want. If you don't want the bass to duck out completely, reduce the send level to the sidechain group. Try values of -1dB, -3dB and -6dB.
What's happening here? Put simply, when the gate opens sound is passed through it according to the send level, and because the phase has been inverted it then cancels out with the original sound. When sending at 0dB, the inverted gated signal is the same level as the original, and the two cancel completely. Reduce the send level and the gated inverted signal becomes quieter than the original, and cancellation is only partial, meaning the sound doesen't fade out completely.
To sidechain just the bass frequencies, insert a LPF after the gate. Make sure the resonance is turned right down if it's a synth filter. The cutoff frequency of the LPF determines the frequency below which the sidechain effect will work. This is because now, only the low frequencies are being passed by the gate, so only the low frequencies are being cancelled out and reduced in volume when the kick hits.
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makus
Overdream
Started Topics :
82
Posts :
3087
Posted : Jan 19, 2010 13:46
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Elad
Tsabeat/Sattel Battle
Started Topics :
158
Posts :
5306
Posted : Jan 19, 2010 14:38
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cubase is like really hard puzzles with too much sky parts... in the end you get nice picture only the way to do it is so boring and long. at-least they go foreword and not backwards like image-line.
they should really put their brain together to make peak controller or simply buy the algo from image-line its getting ridiculous to open more channels use external plugins and invert phases when all you want is the volume of the channel to be sent as midi message. and it can be used to much cooler stuff then compression.. thats like the most un-creative way to use this tool
--------
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http://yoavweinberg.weebly.com/ |
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PoM
IsraTrance Full Member
Started Topics :
162
Posts :
8087
Posted : Jan 19, 2010 14:48
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they could make a usable vst3 sidechain compressor too ,they added vst3 and sidchain but the comp sux lol... |
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dmtoad
IsraTrance Junior Member
Started Topics :
11
Posts :
56
Posted : Jan 19, 2010 18:53
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ISM MuSiCX :
(Multiband Sidechain Compressor & Expander) is a dynamic parametric equaliser with five adjacent bands separated by filters of 2nd to 20th order. Each of these bands' envelope generators are controlled by pre-filtered signals of any track in a project. The routing between the tracks is done via internal host-independent side chains. |
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Uedi
IsraTrance Junior Member
Started Topics :
10
Posts :
288
Posted : Jan 19, 2010 20:33
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Live Multiband Dynamics plug in!!!
It's awesome. Very effective and flexible multiband compressor. 
You can add automation to the low frequency knob, adjust the freq bands and you can even turn that band on and off!
Easy as it gets 
Or you do EQ automation on bass. |
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