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TKA86
Participant
February 14, 2020
Question

Audition 3 spectral display

  • February 14, 2020
  • 1 reply
  • 2005 views

Hello! A long time ago I used Adobe Audition 3.0. It had wonderful spectral phase display. I try to understand what it means? There are different coloured curves. What does their colour mean? 

[Mod note: moved to a thread of its own, as it wasn't relevant to the one it was originally posted in]

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1 reply

SteveG_AudioMasters_
Community Expert
SteveG_AudioMasters_Community Expert
Community Expert
February 14, 2020

It wasn't really very meaningful at all, in any sort of helpful way. To a first approximation it shows the difference between the two channels and on a complex signal, and the further the display got from the centre, the more out of phase the two channels were - but it displayed different frequencies as different colours - the redder they got, the higher the frequency. The brightness related to the relative amplitudes. So on a complex waveform, like yours (which has to be zoomed in quite a way to look like that) it's showing you that... it's a complex waveform!

 

    T
    TKA86Author
    Participant
    February 18, 2020

    Thank you for your help. I've already imagined that those lines represent separate instruments. And i wish we could erase separate lines so we could make karaoke or jam tracks or even isolated instruments.

    SteveG_AudioMasters_
    Community Expert
    SteveG_AudioMasters_Community Expert
    Community Expert
    February 19, 2020

    And one more question: is it possible to see spectrum in some regions of stereo panning? Let's say between 0 and 15 degrees or between 20 and 65. The ideal case is if we could see different tracks (guitar, vocals, percussion) like layers. I tried Spectralayers but that program can display separated tracks only for mixing. It cannot split mixed song for vocals and underlying instruments.


    No, you can't separate the separate display into phase regions. Apart from any other considerations, that would be very heavy on processing time and anyway, any display like that would be completely messed up by any reverberation in the sound field.

     

    And like I said earlier, you cannot separate out the individual instruments in a mix anyway; that is akin to unbaking a cake - you simply can't do it, because of the harmonic overlaps.

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