Changing (Filtering?) Audio

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indigo
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2009/10/06 13:49:17 (permalink)

Changing (Filtering?) Audio

I'm wondering if there's any way of filtering an audio track to sound like another instrument (at least a bit)... I'm recording a Flute/Oboe/Piano trio but play flute only so would like to try to make one of my two flute tracks approximate the sound of an oboe. Is this possible? Thank you!

Rosie
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    gamblerschoice
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    Re:Changing (Filtering?) Audio 2009/10/06 16:03:25 (permalink)
    Since a flute is only playing one note at a time, you could use an "audio to midi" converter to convert the audio to midi, then send that midi data through a sampler.

    Later
    Albert

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    Spaceduck
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    Re:Changing (Filtering?) Audio 2009/10/06 16:28:19 (permalink)
    I think gambler's suggestion is the best way.

    A more difficult & expensive way would be to buy a vocoder. That's a device which does specifically what you're talking about--it overlays the tonal quality of instrument A (flute) with the formant quality of instrument B (oboe) through the use of filters & other high tech junk. Most people just use em to make wacky robot effects on vocals.

    P.S. I was just thinking, what if you record the flute an octave higher, then use a digital plugin (like PitchWorks) to transpose it down an octave? That may result in a pretty natural "oboe". I use this technique all the time to make my cello sound like a double bass (shh don't tell).
    post edited by Spaceduck - 2009/10/06 16:40:25

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    indigo
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    Re:Changing (Filtering?) Audio 2009/10/06 16:43:46 (permalink)
    Hi Albert!

    Thanks for the suggestion - that did occur to me and I do have audio to midi software, though in any case I've already generated midi from the score and applied sound fonts (chiefly to enable me to play along to the piano part), including the oboe and flute tracks.

    I was really looking to modify my own recording because a midi track of any kind lacks the expressiveness that a human blowing through a tube can make! Was hoping to be able to modify the sound to be 'reedier'.

    Do appreciate you taking the time to reply though :)

    Rosie
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    indigo
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    Re:Changing (Filtering?) Audio 2009/10/06 16:49:42 (permalink)
    Very interesting ideas, Spaceduck! Not sure that I can afford too much expense just now, but I'll do some research on vocoders (which sounds like a great solution) for later and will definitely try your second suggestion in the meantime.

    Thanks so much for your help :)

    Rosie


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    gamblerschoice
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    Re:Changing (Filtering?) Audio 2009/10/06 19:42:01 (permalink)
    ..."I was really looking to modify my own recording because a midi track of any kind lacks the expressiveness that a human blowing through a tube can make"...

    Actually, using sound fonts and the free sound font players, this can be done. You would adjust the attack, delay, release, etc. Also, eq, compression, and other techniques would be involved. Or, you could do this with the cc commands, adjusting all of the parameters inside the midi data. Both are time consuming, but worth the time invested. Neither would be as simple as having a oboe/piano player do it for you...

    Later
    Albert 
     
    Forgot to mention, there are midi to audio converters for free, just do a google...
     
    Later
    Albert
    post edited by gamblerschoice - 2009/10/06 19:43:44

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    indigo
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    Re:Changing (Filtering?) Audio 2009/10/06 20:16:23 (permalink)
    Neither would be as simple as having a oboe/piano player do it for you...


    The reason I have to do it all myself is because where I live out in the sticks it's almost impossible to find other musicians - so I have to play with myself (so to speak )

    All sounds a bit too complex - maybe I'll have to settle to a flute duo!

    Thanks, Albert

    Rosie
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    gamblerschoice
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    Re:Changing (Filtering?) Audio 2009/10/06 21:01:16 (permalink)
    Send me your midi file. Let's see how hard it is to change a flute to an oboe. Flute to piano....not so much. Need more fingers in the mix.

    albertsekely@yahoo.com

    Later
    Albert

    http://www.showcaseyourmusic.com/lothlorienfantasy
    http://www.gamblerschoice.us/



    He's a walking contradiction,
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