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Mid / Side Mode 

Mid / Side processing is a concept developed in 1934 by Alan Bluemlein. By 
using a patented microphone technique, the concept was developed to recreate 
how the human ear hears(perceives) the stereo image.  
This Mid / Side technique is now widely used as an effective way to improve 
stereo space in your recordings.  

By changing the EQ of the 'Mid' section, you can boost for instance some 
frequencies to make it more centred/mono. By changing the EQ of the 'Side' 
section, you can boost for instance some frequencies to make it more stereo 
wide. Of course, you also may cut certain frequency ranges in the 'Mid' or 'Side' 
section, to improve your track. It simply depends on the track as to what is best. 

RP-EQ divides in 'Mid / Side' mode into two Band groups. Band 1-4 uses the 
'Mid' section of the audio and Band 5-8 uses the 'Side' section of the audio. 

By EQ-ing both sections in different ways, the stereo feel can be improved in 
your audio tracks/masters.

 

 

EQ (graphic) Screen  

 

Clicking on the EQ Screen allows you to graphically alter the bands values using your 
mouse.   
 
Left clicking & moving left / right changes the frequency of the band. 
 
Left clicking & moving up / down will change the gain of the band. 
 
Left clicking & moving up / down while pressing Alt changes the band-width of the selected 
band. 
 

 

Summary of Contents for RP-EQ

Page 1: ...1 User Guide Powered by RPCX ...

Page 2: ...ter equalizer and several unique elements were added to the core equalizer unit The toolbox now includes a MONO STEREO Split filter which is used a lot in modern EDM Dance music to get a very tight low end The Air section is also fantastic on your master channel to open your mix in a stunning way And in true Rob Papen style RP EQ comes with many great Presets including contributions from several w...

Page 3: ...ec button Off will disable the Spectrogram view Boost The Boost function amplifies the sound fed into the Spectrogram Please note that this does not make the audio output louder it only applies to the visualisation engine Use this function to get a more detailed spectral view of soft passages in your music Release The Release control determines how long it takes for the spectrum to fall back to a ...

Page 4: ... find the Lock button for each of the EQ Bands frequency and Gain This can be very useful if you don t wish to change these settings and simply lock them in place EQ Off On Mid Side Clicking on the EQ Button in the EQ screen will turn Off On the EQ Clicking on the EQ Mid Side with set the EQ to Mid Side mode In EQ Mid Side mode Band 1 to 4 are labelled as M for mid and Bands 5 to 8 as S for side E...

Page 5: ...to 127 G9 In Frequency mode you can set the frequency using the dial in Note mode you can click on the note readout to display the menu where you can select a note Frequency Lock Locks the EQ band s frequency This is a very handy feature if you don t want to move the frequency by accident using the mouse in the upper graphic screen Also with some presets this can be used as part of the preset EQ s...

Page 6: ...reo wide Of course you also may cut certain frequency ranges in the Mid or Side section to improve your track It simply depends on the track as to what is best RP EQ divides in Mid Side mode into two Band groups Band 1 4 uses the Mid section of the audio and Band 5 8 uses the Side section of the audio By EQ ing both sections in different ways the stereo feel can be improved in your audio tracks ma...

Page 7: ...cker in the low end and because of this it adds a kind of warmth to the sound It requires studio speakers to hear the difference Although very minimal in change it is still a useful function for mastering or when used on individual audio tracks Pre When this is set to On the signal goes through the saturation effect before going into the EQ If it is set to Off the signal will travel through the EQ...

Page 8: ... a bit extra to make it jump out of the music In case of a lead voice note that the amount goes up to 6dB but often even a tiny change can make a huge difference Clicking on the Air button turns On Off the Air effect Amount The amount the higher frequencies are boosted Frequency Frequency at which the signal is boosted from 30kHz to 40kHz For on your mix or mastering 40kHz setting is great For sol...

Page 9: ...ters In combination with using the CV inputs on the back of RP EQ or automation and other Reason devices LFO s etc this section is of course also very attractive for making special moving filter sounds Often used by DJ s Clicking on the Filter buttons will turn On Off the filter You can also turn both filters On Off using the main filter On Off button Both the high pass low pass can be turned off ...

Page 10: ...lter below this frequency the sound is mono fied You can set the range of this frequency using the split range buttons or if you click on the Note Button you can set the frequency using a MIDI note from MIDI note 0 C 1 to 127 G9 In Frequency mode you can set the frequency using the dial in Note mode you can click on the note readout to display the note select menu Solo When this is On you will onl...

Page 11: ...n of RP EQ shows the Input Output audio connections and also CV input to each band s frequency bandwidth gain also the Low pass High pass filter frequency and Q resonance Manual version 1 0d Rob Papen ConcreteFX All rights reserved ...

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