Any math majors out there? This one\'s tricky..For me at least..
 

O.k. here it is...

I need to figure the math to set a delay to do triplets to a certain BPM. What equation can I use to come out w/ the perfect triplet delay. Oh and the delay needs to be slower than the beat itself that way I can get that U2 the edge sound but for drum loops etc. I can sort of get it just by tweaking the knobs, but I need it to be exact or else it lags a bit....

Trash Man Thanks you....

Re: Any math majors out there? This one\'s tricky..For me at least..
 

40,000/BPM = Triplet

.. or go here

Rail

Re: Any math majors out there? This one\'s tricky..For me at least..
 

Download this one :
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Re: Any math majors out there? This one\'s tricky..For me at least..
 

60 / BPM, x 1000 gives you the length of the beat in ms
Divide that by 3 and you get triplets.

Eg. 112 BPM

60 / 112 = 0.536, x 1000 = 536 ms
536 / 3 = 179 ms

Clear as mud?

Re: Any math majors out there? This one\'s tricky..For me at least..
 

here's one more. has dub and time stretch calculators in an excel spreadsheet: http://basstardz.dhs.org/other/sample_calculator.xls

Re: Any math majors out there? This one\'s tricky..For me at least..
 

<font size="2" face="Verdana, Arial">Actually Austin, You could simplify this by combining two of your steps. 60 divided by the BPM then multiplied by 1000, is the same thing as dividing 60,000 by the BPM, thus saving you a step. And yes, if divide that number by three you get eighth note triplets, but if you are looking for quarter note triplets it would be easier to divide 40,000 by the BPM like stated above.

All of these are simple on a basic calulator and you don't have to run any other programs. There are also charts in most of the studio related books. I know for a fact that "The Mixing Engineers Handbook" has one, and I would recommend that book regardless of the chart.

Hope this helps.

Re: Any math majors out there? This one\'s tricky..For me at least..
 

Sure NineSpine, but I broke it down. I don't believe in just passing a formula on if there's a chance to explain the concept as well. Otherwise it's just another formula that's useless in any other situation.

Re: Any math majors out there? This one\'s tricky..For me at least..
 

For that U2 thing, you might find that a delay of 3 16th notes is what you want rather than 2 12th note triplets. Oh and if the track is shuffled then you have to fudge it anyway.....

Re: Any math majors out there? This one\'s tricky..For me at least..
 

Just in case, and because understanding is the secret behind memorizing:

What you know is the number of Beats Per Minute.

What you want is to know the length of a beat so you can set your delay to any subdivisions of that length. So what you want is the number of MInutes Per Beats!

Minutes Per Beat = 1 / [Beats Per Minute]

Now if you want it in seconds, just multiply by 60:

Seconds Per Beat = 60 / BPM

Milliseconds? multiply by 1,000

ms per beat = 60,000 / BPM

See? No need to be a math major or anything. Just pure logic.

Re: Any math majors out there? This one\'s tricky..For me at least..
 

<font size="2" face="Verdana, Arial">Uh, in 4/4 1 beat is usually a quarter note (4 beats to the bar)

60,000/BPM = 1 quarter note

40,000/BPM = quarter note triplet

60,000/BPM * 1.5 = quarter note dotted

Divide all by 2 for 1/8th notes or 4 for 16th's, etc.

Rail