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Record BPM's most acurate way
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waXology
im just curious to see what you all thing is the most accurate way to BPM your records, i key my records but its pretty useless without the BPM.

i know someppl use the counter on the DJM600 but i think this is in accurate... is there any programs or hardware i can buy that can bpm my records?

any info would be appreciated
cheers
Cam
TempesTrip
no bpm 4 u!!! lolz seroiusly though do urself a favor if your trying to be serious about djing and just learn how to beat match.. every gig you go to isn't going to have a bpm counter there for you and if u learn how to beat match like that you become dependant on it and what if you at a gig and they don't have a bpm display for you.. ur of luck then. just my two cents. take it or leave it..l8z tempest
waXology
quote:
Originally posted by TempesTrip
no bpm 4 u!!! lolz seroiusly though do urself a favor if your trying to be serious about djing and just learn how to beat match.. every gig you go to isn't going to have a bpm counter there for you and if u learn how to beat match like that you become dependant on it and what if you at a gig and they don't have a bpm display for you.. ur of luck then. just my two cents. take it or leave it..l8z tempest


hahaha ok i forgot to mention ive been djing the sydney circuit for about 2 years.... i know how to beatmatch....

im refering to BPM's as in Key mixing, because its easy to key a record but is useless with out the BPM of the track..

i.e Armin last night at HOME nightclub jan 23rd 04

TempesTrip
ahh ok well basically you should know by now that the key changes with the bpm unless u got a master tempo thing going. so theres really no way to match it unless it just works and u hear that within two different tracks.
ps i didn't mean to be insultive to you at first just you know these boards and since you didn't give any backround info i had to assume the worst :) l8z - tempest
waXology
quote:
Originally posted by TempesTrip
ahh ok well basically you should know by now that the key changes with the bpm unless u got a master tempo thing going. so theres really no way to match it unless it just works and u hear that within two different tracks.


well there is, if you just have keys and no bpms its like guessing, but if the keys go together and the bpm is withing 2% of each other (i think it is) then it still works, hence the NEED to find out a sure way of BPM'ing my records..... you can go 2% either way in pitch shift before it becomes "out of key" i na sense...

if that makes sense
TempesTrip
ahh yea i nkow what your saying like if theres no beat fine you can get away with it but once that beat drops ur screwed.. as far as -/+ 2% on ur bpms man even .1 is goign to throw it off after awhile i dont' even want to know what 2% would do to it lolz.
Psygnosis
Cam do you mean if theres a way to perfect the key matching technique??

Actually Armin said that is hard to actually make a whole set that key matches but sometimes it's just easy to find them, some songs have a key that don't match to anything.

I know what you mean, if the song has the same key then you can still be a bit off the BPM matching sector and still make it sound good.

I'll get back to you man cause my friend determines his vinyls keys with a program, a track like As The Rush Comes (Sweeping Strings) is in a E key.

But yeh ill have to get back to ya when i talk to him next.
waXology
quote:
Originally posted by Psygnosis
Cam do you mean if theres a way to perfect the key matching technique??

Actually Armin said that is hard to actually make a whole set that key matches but sometimes it's just easy to find them, some songs have a key that don't match to anything.

I know what you mean, if the song has the same key then you can still be a bit off the BPM matching sector and still make it sound good.

I'll get back to you man cause my friend determines his vinyls keys with a program, a track like As The Rush Comes (Sweeping Strings) is in a E key.

But yeh ill have to get back to ya when i talk to him next.



i dont know if you guys are getting what im saying....

ok say you playing a track that is at a pitch of 0 and it is in Am, if you mix in another track that is also in Am and is at 0 then it will sound in perfect harmony!!... now

say the track mixing in is in Am still, it will still be in harmony if its +2 or -2 % difference from 0.... after 2% then it goes to a different key that sounds ty.

now its no good having two tracks in Am one at 135BPM and one at 143BPM because by the time u beatmatch them one will be like say +6 and the other will be at like 0... you get me? the BPM's are so far apart to get them beatmatched they will be more then 2% apart... meaning they wont be in Am no more.....

so basically when you are playing a gig say your playing something that is 135 Am, so you go to your record box and you wanna find a track that is around 134, 135 or 136 ish as close to 135 as possible then also in a key that goes with Am, which is Am( cause obviously it goes with itself) Dm, Em and C then this way your mix will be in harmony.

it all sounds confusing but seriously its easy as! some people i know think its cheating which is laughable....... seriously, its like a pianist learning their scales..... its basic musical theory!

so what i was originally saying that, i can easily find the kjey of a track..... and BPM is easy to calculate, but i was seeing what everyone else uses to BPM their records, some use the DJM-600 some use a final scratch plugin and some people tap it on pc programs.
waXology
also im sure as the rush comes is in Bm
:D
las3rjock
quote:
Originally posted by waXology
i dont know if you guys are getting what im saying....

ok say you playing a track that is at a pitch of 0 and it is in Am, if you mix in another track that is also in Am and is at 0 then it will sound in perfect harmony!!... now

say the track mixing in is in Am still, it will still be in harmony if its +2 or -2 % difference from 0.... after 2% then it goes to a different key that sounds ty.

now its no good having two tracks in Am one at 135BPM and one at 143BPM because by the time u beatmatch them one will be like say +6 and the other will be at like 0... you get me? the BPM's are so far apart to get them beatmatched they will be more then 2% apart... meaning they wont be in Am no more.....

so basically when you are playing a gig say your playing something that is 135 Am, so you go to your record box and you wanna find a track that is around 134, 135 or 136 ish as close to 135 as possible then also in a key that goes with Am, which is Am( cause obviously it goes with itself) Dm, Em and C then this way your mix will be in harmony.

it all sounds confusing but seriously its easy as! some people i know think its cheating which is laughable....... seriously, its like a pianist learning their scales..... its basic musical theory!

so what i was originally saying that, i can easily find the kjey of a track..... and BPM is easy to calculate, but i was seeing what everyone else uses to BPM their records, some use the DJM-600 some use a final scratch plugin and some people tap it on pc programs.


You're totally right about needing to know both the key and the 0 pitch BPM to do harmonic (or key) mixing. Honestly, though, the best way to calculate the BPM is probably to listen to the track with a stopwatch and count the beats over some length of time, say 12 seconds. If you count the beat over 12 seconds, then the BPM is five times the number of beats you counted. Automatic beat detection by electronics or software is still horribly unreliable. Manually tapping the beat into a beat counter should be ok, though, since you're still using the beat detector--the human ear. ;)

DJ Nuclear
Actually, I had come across a very good algorithm for beat detection in c that I could mod to be more accurate. It only works for wav files though, and I'm not sure how to decompress mp3's so that they can also be read. (it reads wav buffers)
Boomer187
I use the tapper on my my mixer.

also what I do is put the record up to the speed I usually play at and get the key. This will work great unless you spin @ 140 somenights and 135 on others.

also this program I use to find the key also finds the bpm, its called rapid evolution.

dunno if this helps any at all. :).
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