Time stretching

Discussion in 'Technology' started by chickenfizz, Oct 30, 2005.

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  1. chickenfizz

    chickenfizz

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    Time stretching

    Ok, I'm trying to make this bootleg which in theory works great, but the two tracks I'm using to make it are a bit less than a tone apart once they're the correct speed, I've tried most of the different time stretch presets in acid (which are the same as sound forge). But time stretching is crap, when the two tracks are put together they sound out of time in places and generally just messy. Does anyone know any software that does really good time-stretching.

    I'm finding this really irritating because I'm so close to having a really decent track but am being held back by this little technical issue!

    Any help would be greatly appreciated!
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  3. Alexander

    Alexander Registered User

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    Re: Time stretching

    your doing it wrong mate, first you need to find the key of both tracks and match them using soundforge i usually use cubase for this but you can use acid, soundforge and many other programs to do it, where is it you going wrong? need more info to sort it out
  4. Rossy

    Rossy . Staff

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  5. chickenfizz

    chickenfizz

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    Re: Re: Time stretching

    I'm not doing it wrong like, it's correcting the pitch and remaining the same bpm... therefore it's doing it's job. I've used soundforge for years and knew the time-stretch was gash, but it always is, you ever tried mixing anything with pitch correction? It's a disaster. I was hoping that by this time someone would've written a plugin or something that can do it better.

    I don't think it's me that's going wrong, just think it doesn't work well for music, would probably be fine for vocals or strings but it messes up anything with percussion.

    I'm sort of doing it the same way as you suggest, just in a different order, I matched the tempo of the two tracks first then corrected the pitch of one of them.

    * Just realised my description of the problem is rubbish!

    it makes it sound like the problem is that I can't get them both the same pitch, I can get them both to the same pitch and speed, it's just the accuracy goes all to pot, makes it sound badly mixed when actually the bpm is spot-on.

    Sorry, I'm not very good at explaining myself.
  6. Alexander

    Alexander Registered User

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    it works perfect mate if you don't change the pitch to much, also the better and the more expensive the program, the better the timestretch algorhythms will be.
  7. Alexander

    Alexander Registered User

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    Re: Re: Re: Time stretching

    oh right how much are you changing the pitch by?
  8. chickenfizz

    chickenfizz

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    I don't have an option as to how little pitch correction I can use, just need to use enough to make it match.
  9. chickenfizz

    chickenfizz

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    -0.930, just under a tone lower
  10. Alexander

    Alexander Registered User

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    is that percentage cause -3.3% is a tone lower
  11. chickenfizz

    chickenfizz

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    no, it's cents of a tone

    [​IMG]

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