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Alternative tunings

Discussion in 'REAKTOR' started by Phi, Apr 21, 2004.

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  1. Phi

    Phi Forum Member

    Messages:
    48
    Hi,
    As I'm just beginning to work with Reaktor (coming from Max/MSP), I didn't explored such possibilities yet.

    The tuning files I use are already text files. (Scala or TUN formats.)

    Thanks all for your positive encouragements!
    ;-)
     
  2. toto le robot

    toto le robot NI Product Owner

    Messages:
    663
    then check in th manuel but once you have the right format,a modulo module with pitch and constant twelve will give you at the divide output the octave and at the modulo output the notes use the modulo to read the table and add it to modulo and divide ifs it'relative tuning or just divide if it's absolute tuning for a é' tone use a constanr of 24 if you want two in the same table 24 and 12 tone scale use aonther table (1..the number of scale in your table) and plug it into the divide module.
    have fun!
     
  3. herw

    herw NI Product Owner

    Messages:
    6,421
    I have uploaded MICTROTUNING to the user library

    ciao herw
     

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  4. ecamburn

    ecamburn NI Product Owner

    Messages:
    17
    According to the website for the Scala program (http://www.xs4all.nl/~huygensf/scala/), the program exports tuning data in a format that can be read by the internal tuning tables of Reaktor, FM7 and Pro-52. I've downloaded Scala and used it to export a file in "Native Instruments" format. The program outputs a text file containing a tuning dump. The text file contains a single line with 128 tuning entries (in MHz), each separated by a space. Using Scala, you can export any of the 3,000+ Scala files to this format.

    Has anybody actually used a tuning dump like this to alter Reaktor's tuning? If so, could you explain how you did it? Short of that, can anyone simply confirm that Reaktor can read a tuning dump file in this format?
     
  5. Plain Tom

    Plain Tom NI Product Owner

    Messages:
    595
    just ploughing through Ableton's Live4 Newsletter. Tons of new features, this is interesting, I quote:

    "…Live 4 also includes 5 MIDI effects. The ‘Scale' effect, for instance, forces incoming notes onto a chosen musical scale and fits well with 'Random,' which creates random deviations in note pitch…"
     
  6. Loopy C

    Loopy C NI Product Owner

    Messages:
    1,265
    Came across this, looks great for NI instruments.

    L'il_Miss'_Scale_Oven™
    Scale Analysis and Editing Tool
    http://www.microtonal-synthesis.com/

    Mac OS9/X

    I will probably order it, will let you know.
     
  7. Plain Tom

    Plain Tom NI Product Owner

    Messages:
    595
    NI's Absynth does scales as well, I can remember a Werkmeister-scale in the old pre-NI version.
     
  8. Loopy C

    Loopy C NI Product Owner

    Messages:
    1,265
    Check out the link for LMSO I posted, not only is Reaktor, FM7, Pro 53 included as directly supported but also Absynth and Kontact! (even Reason too!). I am ordering (through snail mail unfortunately) today.
     
  9. Phi

    Phi Forum Member

    Messages:
    48
  10. arachnaut

    arachnaut NI Product Owner

    Messages:
    3,106
    Re: Alternative tunings - tip on fractional intervals

    I planned to post a tip I found when exploring alternate
    tunings a long while ago.

    I couldn't find a perfectly relevant topic so I picked
    this one.

    I had read 'On the Sensations of Tone' and the Wilkinson
    book on temperament and then I used an Ensonig VFX which
    allowed tuning tables and I tried a few experiments.

    I thought about using scales based on 'magic numbers'
    like intervals of phi, pi, e, or whatever.

    Crucial to this was a tip I want to show you. It is based
    on the premise that the most pleasing intervals are those
    based on small fractions, like 1/2, 4/3, etc.

    What I wanted to do was find an equal-temperament scale
    that was close to an arbitrary number. For example,
    suppose I like the number '1.265625'. No reason, it's
    arbitrary.

    I wanted to find a tuning that would allow exact mappings
    to that interval.

    The method of 'continued fractions' is appropriate, as
    outlined below, plus the fact that most people can not
    distinguish pitches that differ by more than about 3
    cents.

    To find the number of cents (c) in an interval f1:f2 = R
    2**(c/1200) = R
    therefore, c = 1200 log R/log 2 =

    c(R) = 3986.313713865 log R

    c(f1:f2) = 3986.313713865 log (f1/f2)
    = 3986.313713865 log f1 - 3986.313713865 log f2
    = c(f1) - c(f2)


    So here is the general idea, let us find a whole numbered
    fraction that approximates our number (1.265625, in this
    example). Then we can make a scale of intervals with the
    equally-tempered component the denominator of our fraction.

    1.265625 = 1 + 265625/1000000 =
    1 + 1/(1000000/265625) =
    1 + 1/(3 + 203125/265625) =
    1 + 1/(3 + 1/(265625/203125)) =
    1 + 1/(3 + 1/(1 + 62500/203125)) =
    1 + 1/(3 + 1/(1 + 4/13)) =
    1 + 1/(3 + 1/(1 + 1/(13/4))) =
    1 + 1/(3 + 1/(1 + 1/(3 + 1/4)))

    first approx: 1 + 1/3 = 4:3 = 498 cents
    second: 1 + 1/(3 + 1) = 5:4 = 386 cents
    third: 1 + 1/(3 + 1/(1+1/3) = 19:15 = 409 cents
    fourth: complete term = 81:64 = 408 cents

    Since there is no discernable different between 408 and
    409 cents, to the ear 81:64 = 19:15. So we can map our
    number to a 15 equal tempered scale.

    Simlarly this can be use to make scales for multiple
    numbers. If we want a scale that harmonizes intervals of
    phi = 1..61803399... and e = 2.71828183... at the same
    time, exploit the continued fraction for each and take
    the LCD (lowest common denominator) of the denomimators
    for your tuning.
     
  11. CC4

    CC4 NI Product Owner

    Messages:
    167
    aren't there some alternative tuning macros somewhere in the 3/4 library?
     
  12. arachnaut

    arachnaut NI Product Owner

    Messages:
    3,106
    Re: Alternative tunings - tip on fractional intervals


    Of course I meant LESS than 3 cents.

    The human ear can discern about 3.459 cents: @500 Hz one can
    discern 1 Hz difference - depends on freq., loudness, etc.


    - my two cents....
     
  13. Chet Singer

    Chet Singer NI Product Owner

    Messages:
    822
  14. tubaman

    tubaman NI Product Owner

    Messages:
    789
    I remember high school orchestra --- now THERE were some "alternate" tunings!!
     
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