Removing artifacts produced by software

Discussion in 'Mastering' started by o0Ampy0o, Dec 3, 2016.

  1. o0Ampy0o

    o0Ampy0o Active Member

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    Hello,

    I did a search and decided to just create a new thread on this specific topic.

    I am looking for advice on reducing or even eliminating (hopeful) the mechanical artifacts produced by audio software. An example is Audacity, a common and free application. The plugin included with Logic is similar and even superior but it also produces the unnatural sounding mechanical artifacts best described as that unnatural character getting farther away from a natural sounding voice and ever closer to a vocoder sound.

    All of this type of software produces a mechanical artifact. It is easy to produce a robotic voice but it is difficult to significantly manipulate a voice and end up with a natural result.

    I have purchased software that manipulates the voice in a wide range of ways from young to old, real and cartoony and then of course robotic which I could get with free software. I am trying to end up with as natural a voice as possible.

    I imagine that the software company would include it in the product if it were possible so I assume that it does not exist. I have heard nothing from them in response to my inquiries. So I am here looking for tips to reduce/eliminate as much of this unnatural artifact as possible yet still make significant adjustments to the original voice. The more significant the greater the adverse consequences. I need to be able to change a voice from a young adult to elderly and child without it ending up sounding robotic.

    Are there DAW tools or plugins that target this specific artifact?

    Would something like SoundSoap help with this?

    Thank you in advance.
     
  2. audiokid

    audiokid Chris Well-Known Member

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    welcome to recording.org.

    Could you upload two MP3 examples of a before and after so I can hear what your software is doing/ failing at?
     
  3. audiokid

    audiokid Chris Well-Known Member

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  4. o0Ampy0o

    o0Ampy0o Active Member

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    Thank you for the welcome.

    EDIT I did not realize this was a pro only forum, my apologies.

    I am just a hobbyist doing animation.
     
  5. audiokid

    audiokid Chris Well-Known Member

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    Again, no problem. You posted in a Professional Mastering forum.

    However, there is inexpensive software that will do these things too. Right now I am simply qualifying your experience and research to help you further. Knowing more about this all will empower you.

    Yes, that might be helpful.

    Here is a look at spectral editing software. Free for 30 days as well. ;)
    http://www.magix-audio.com/ca/spectralayers-pro/

    Here is an example of software that will change the pitch. They still sound artificial but not as obvious in a song.

    Samplitude : The Object Editor a Guided Tour 18:Elastic Audio - YouTube by audiokid posted Mar 23, 2015 at 9:01 PM
     
  6. pcrecord

    pcrecord Don't you want the best recording like I do ? Well-Known Member

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    If you are talking of pops and clicks. . . many restoration software can help.. for that I like is iZotope RX
    If they are weird harmonics, there might be something to do with Melodyne... it has a harmonic kind of EQ...
    But to transpose audio, I haven't found any software that does it right passed a third interval. Even a third is pushing the limits..
    Specially for vocals who get the majority of attention from the listeners, the best thing is to sing it... It's easier to tune a flat vocal recording you had difficulties to record than transpose the lead vocal to the right notes...
     
  7. audiokid

    audiokid Chris Well-Known Member

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  8. o0Ampy0o

    o0Ampy0o Active Member

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    The voice of Ash after his head is knocked off in the film Alien illustrates a similar artifact. Think of his voice in a natural state. Compare it to its characteristics in the scene. This is what I would like to reduce if not eliminate. That is what I am describing as a sort of vocoder-esque characteristic. It increases the more I manipulate a voice track. Otherwise the software achieves a convincing change.

     
  9. pcrecord

    pcrecord Don't you want the best recording like I do ? Well-Known Member

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    ash robot sound seems to have a range of frequencies we can remove with a simple EQ.
    The thing is, most solution out there will remove a part of the sound.. therefor degrade it..

    You should be more precise on what manipulations you are doing and why
    if using a pitch shifter, you will get a lot more artifacts. Many pitch pluggins have a formant settings you can try, you often don't have to change the pitch much to change the character of a voice. Also you could experiment with changing the speed
     
  10. o0Ampy0o

    o0Ampy0o Active Member

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    It would not help because the knobs are labeled "Young <>Old, Male <>Female, Breathy, Flat<>Expressive. They do not tell you enough about what they are and only describe what the result sounds like.

    The software is Flux Ircam Trax V3

     
  11. audiokid

    audiokid Chris Well-Known Member

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    The audio in your video reminds me of what audio sounds like, caused by reducing the sampling rate to a very low resolution.
    The audible effects of alaising, caused by reducing the sampling rate




     
  12. audiokid

    audiokid Chris Well-Known Member

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    I don't think its possible to "restore" or reconstruct the audio to a "natural" sound but you could try up-sampling audio and it may help but I doubt it.
    If you ever discover how to do what you are searching for, please come back and let me know.

    Maybe this will help:
     
  13. o0Ampy0o

    o0Ampy0o Active Member

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    @audiokidand and @pcrecord Thank you for the time and effort assisting me with this situation. I am going to go through these videos and experiment.

    Perhaps with this expanded awareness and vocabulary I can engage the software manufacturer in a discussion of this as well.

    I certainly will come back and describe what could be done if I find anything.

    Thank you again!
     
    pcrecord and audiokid like this.

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