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CDJ 800 mk2 BPM Question??
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| sterilis |
this has been confusing me so was wondering if anyone has an idea on it. i was told that if you move the pitch up or down 0.75 its equal to 1 bpm each way. so i tried it but the pitch still slides after about 10 seconds which is unusual for my cdjs. so is this method right?
cheers |
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| skip |
no it is not. you cannot give a percentage that would change the pitch by 1 bpm because it depends on the bpm of the track originally.
so use your ears to beatmatch, rather than trying to calculate it or relying on bpm counters. |
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| sterilis |
ive been djing on turntables for 6 years always used my ears ;)
but this theory was supposedly if a track at 140 bpm was at 0.00 pitch slider then a track being mixed in at 139 bpm only needed to be increased by 0.75 on the pitch slider.
im not a noob just curious about it :tongue2 |
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| skip |
alright.
well it's really just basic math. so what you're saying is that the theory is that a 0,75 % change on a 140 bpm track would be 1 bpm exactly?
if you count it, it's clearly not:
140 bpm * 0,0075 = 1,05 bpm
then if you would like to know at what bpm would a 0,75 % be exactly 1 bpm:
1 bpm / 0,0075 = 133,33333333333333333333333333333 bpm = 133 and 1/3 bpm
now if you would like to know the exact percentage to change a 140 bpm track by 1 bpm:
1 bpm / 140 bpm = 0,0071428571428571428571428571428571 ≈ 0,714 %
so you'd have to change the pitch between 0,70 % and 0,75 %
from all this, i'd say that trying to count it is ing useless. you could use some sort of approximation to get it around the bpm you want and then after that do it by ear, like you already know how to. |
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| Pinokio |
I think you are getting too complicated
It's very easy
it's just a percentage
Just Divide 100 by the given BPM
100/150 BPM = 0.66
100/145 BPM = 0.69
100/140 BPM = 0.71
100/135 BPM = 0.74
100/130 BPM = 0.77
100/125 BPM = 0.80
100/120 BPM = 0.83
100/100 BPM = 1.00
In mathematics, a percentage is a way of expressing a number as a fraction of 100 (per cent meaning "per hundred"). It is often denoted using the percent sign, "%". For example, 45% (read as "forty-five percent") is equal to 45 / 100, or 0.45. |
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| skip |
| quote: | Originally posted by Pinokio
I think you are getting too complicated
It's very easy
it's just a percentage
Just Divide 100 by the given BPM
100/150 BPM = 0.66
100/145 BPM = 0.69
100/140 BPM = 0.71
100/135 BPM = 0.74
100/130 BPM = 0.77
100/125 BPM = 0.80
100/120 BPM = 0.83
100/100 BPM = 1.00
In mathematics, a percentage is a way of expressing a number as a fraction of 100 (per cent meaning "per hundred"). It is often denoted using the percent sign, "%". For example, 45% (read as "forty-five percent") is equal to 45 / 100, or 0.45. |
that's the exact same calculation as the last one i posted, but you've just multiplied the 1 bpm with 100 before dividing and thus get the percentage straight and don't have to multiply the result with 100 like usually when you're counting percentages.
anyway that IMO doesn't change the fact that you can't really calculate these and IMO ahouldn't as i really think it's useless. :) |
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| Pinokio |
| quote: | Originally posted by skip
that's the exact same calculation as the last one i posted, but you've just multiplied the 1 bpm with 100 before dividing and thus get the percentage straight and don't have to multiply the result with 100 like usually when you're counting percentages.
anyway that IMO doesn't change the fact that you can't really calculate these and IMO ahouldn't as i really think it's useless. :) |
Well, it might be useless for Perfect Beatmatching, but if you want to get and approximation it can be very useful. =) |
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| sterilis |
| yea seems this is a good method to get an approximation of what you need to be around then the rest is down to your dj skills and ing around with the platter to keep it in sync. |
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| sleepydragon |
| quote: | Originally posted by sterilis
yea seems this is a good method to get an approximation of what you need to be around then the rest is down to your dj skills and ing around with the platter to keep it in sync. |
whats the point in doing those calculations to get you near? you might aswell just use the bpm counter to get close then use your ears |
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| sterilis |
| quote: | Originally posted by sleepydragon
whats the point in doing those calculations to get you near? you might aswell just use the bpm counter to get close then use your ears |
because i use serato and it shows bpms of 63 bpm or 176 bpm for track ats 140 bpm so if i used that id be playing uplifting trance at happy hardcore speed. |
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| djkoolaide |
| quote: | Originally posted by sterilis
because i use serato and it shows bpms of 63 bpm or 176 bpm for track ats 140 bpm so if i used that id be playing uplifting trance at happy hardcore speed. |
Hmm...you must not be calculating BPMs correctly in Serato...I have about 10,000 tracks in my crates, and there are only about, I'd say, 100 tracks where I've had to manually enter the BPM. |
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| sterilis |
| quote: | Originally posted by djkoolaide
Hmm...you must not be calculating BPMs correctly in Serato...I have about 10,000 tracks in my crates, and there are only about, I'd say, 100 tracks where I've had to manually enter the BPM. |
why is there a special way to calculate them? i just used build overviews. |
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