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Mid side eq processing Vocal track

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I have just recorded vocals in Logic Pro X,

If I eq mono all is good. I can cut all boost.


If i eq side no results or effect on vocals.

So what is going on?

Please help.


I want to cut mono vocals at 250 hz (High Pass)


I want to keep lower vocals but push out to sides. say cut at 150hz.


Thank you

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Thank you.

So what do I need to do to transform the mono track so I have the option to EQ cut in mono and boost in side.


I did change the track into stereo. Had no effect. No Side

I also BIP . No Side.


If I add a stereo spread utility. I get what I want. Now I have Mid and Side


So what is going on?

Is there an alternative method regarding EQ.


Thanks in advance.

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I think you are misunderstanding the concept of MS.

Mid is when the signal is exactly the same on left and right, that's what we perceive as a phantom mono.

Side is the everything that is different from left to right.


A mono recording is routed equally to left and right = No difference = Only Mid information.


There are plenty of ways of creating a stereo field. You could dub a second take and pan those away from each other.

You can use panned delays or reverbs or pitch shifters or a combination of everything. The point is that you have to have a difference between left and right.

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  • 2 weeks later...

There are tricks you can try when you're ready to attempt them. Forgive me if you already know this stuff....


While it's true vocals are mono and, therefore, have no side information, depending on your genre of music, what you could do to enhance the stereo "width" of your vocals is things like double tracking and/or harmony lines.


Again each of those vocal recordings will be mono as well, unless you capture your vocals using a specific technique involving multiple microphones and a nice sounding space to record in.However, each of those single vocal tracks can be panned and then channeled through a buss or placed inside a summing track stack.


From there you could use mid-side processes on your buss or stack (same thing really) to bring out a bit more of the sides, and subtract a little bit of the middle so they don't interfere much with the lead vocals, but you do want some interaction so they blend nicely. That's with creating harmonies.


With double tracking the main vocal what you do is record or comp together multiple lead vocal parts and then offset set them slightly from the centre, sum them together like above and then play with your sides information a little..


I wouldn't want to do too much mid-side processing here, though, not unless you have a special creative idea going on. It's really important for the drive of almost every song to keep the main vocals centred. If you mess with the main vocal stereo imaging too much the song loses impact and drive and starts to fall apart. The same could be said for kick, snare and bass.


If you don't feel like recording your main vocals twice, or for some reason you can't, if you have multiple takes you can always comp together another variation of the main vocals to sit beside it.


If you really can't be bothered with that or are pressed with time you can try duplicating the main vocal and adding a slight delay to that secondary vocal line, i think around 30-50ms if my memory serves correctly. The effect isn't as strong though, but it is popular in a lot of rap and hip-hop these days.




Alternatively you can alway's try specialised vocal plugins or doublers. I'm a particular fan of this beastie, because it can also be used to create modulation effects as well, but it's not suited for every genre.


Here's a link to a 30 min tutorial on

if you would like to know a bit more about it.
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