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How to read a Phase Scope...

Discussion in 'Recording' started by mark_van_j, Oct 18, 2008.

  1. mark_van_j

    mark_van_j Active Member

    I just started getting into these things after I downloaded a sexy little free plugin called "Stereo Tool" by Flux. (http://www.dontcrack.com/freeware/downloads.php/id/4814/software/Stereo-Tool)

    Problem is, I don't really know what to look for. It's pretty clear what the squigly lines stand for (M/S?), though I'm more curious as to the meter at the bottom which has -1, 0, +1 written on it. A mix I'm working on atm has the meter about 4/5ths of the way to +1 for most of it. What does this mean? Should it be at 0 (as a voice inside me is quietly telling me?)

    4814-vign.jpg

    (picture is not my screenshot, but from the website)
     
  2. Greener

    Greener Guest

    I'd suggest the manual. But I can't find one...
     
  3. Space

    Space Well-Known Member

    "Stereo Tool features ultra precise controls of input gain and individual pan for left and right channels. A phase inverter is available for each channel. A global stereo pan and a stereo width settings are also implemented to complete the management of the stereo signal.

    Stereo Tool also offers an accurate visual feedback reflecting the signal content. A vector scope display, PPM meters for both inputs and outputs, and a phase correlation meter permanently monitor the signal.

    Inserting our Stereo Tool after a Bitter Sweet II will open your mind about all the possible manners to control the stereo stage. "
    Download Now
     
  4. mark_van_j

    mark_van_j Active Member

    Yes, in this case I am curious what a phase correlation meter is actually showing me and what it means...
     
  5. EricUndead

    EricUndead Guest

    Wow what an great site! I must have downloaded 50 free VST's.
     
  6. mark_van_j

    mark_van_j Active Member

    :lol: As much as that might seem exciting at first, it might start getting a little annoying after you get 15 different errors each time you boot up your DAW.
     
  7. RemyRAD

    RemyRAD Well-Known Member

    Phase Scopes have been utilized since the dawn of stereo. It certainly was an imperative when cutting to disk as heavy out of phase content would wreak havoc for the cutter head. So even though much recording is mostly of a random phase nature, i.e. orchestral recordings, not so cut & dried for popular music, rock-and-roll, country, etc., where many more phase errors can be made.

    The phase can be displayed in different ways on a scope and software gives you even more choices. Just know, you don't want too much stuff that is 180° out of phase, no matter how wide you think the stereo sound's. It will just all disappear upon Mono playback. And you don't generally have to worry about cutting into lacquer.

    Lick that lacquer (it's made from dead bugs)
    Ms. Remy Ann David
     
  8. Codemonkey

    Codemonkey Well-Known Member

    I've got tons of free VSTs.
    My only gripe is that I need to use multiFX to load most of them because Kristal sucks.

    And it takes forever to load, so I had to move some to another folder.
     
  9. mark_van_j

    mark_van_j Active Member

    Yes, but what does -1, 0, +1 stand for?? :lol:
     
  10. Codemonkey

    Codemonkey Well-Known Member

    rs-met.com has a thing called Track Meter, it shows Correlation between L and R.

    If the correlation is high, it reads +1. If it's low, it reads 0. I imagine if I phase flip the R channel, it'll read -1.

    This could be a glorified version of the above.
     
  11. mark_van_j

    mark_van_j Active Member

    Here we go... After fruitless searching on wikipedia and google, I happened to come across this explanation on Izotope's site. Pretty much sums it up:

    And as for the vectorscope:

     
  12. Dizzi45Z

    Dizzi45Z Active Member

    Thank you Mark for doing this research. It helped me out a ton. I had the exact same questions.
     

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