4 Mar
2003
4 Mar
'03
8:50 a.m.
Semi OT side issue warning. Absolutely fascinating. This explains much about
why I often fail to understand explanations.
On Tuesday 04 March 2003 09:38, Maarten de Boer wrote:
this is really easy. i would not even call this math
;-)
with samplerate R, 1 sec = R samples
at x BPM, 1 min = 60 sec = x beats. so the duration of 1 beat = 60/x sec
combined: 1 beat = R*60/x samples.
so at 120 BPM, 44100 Hz, 1 beat == 22050 samples. but you probably want
your loops to be 4 beats, so 88200 samples.
With all due respect Maarten, You _have_ managed to make it look like rather
complex math. Either that, or I'm dyslexic. I would explain it thus:
each beat lasts 60/bpm seconds, multiply by the number of beats in the bar.
That will give you the length in seconds, you an convert that to length in Hz
as above if you need to. 4 beats to the bar _is_ the default setting, if you
like. but best to check otherwise you may end up with a loop twice or half
the length.
It's really ok to have odd numbers of beats to the bar if you want, but
that's just personal bias.
cheers
tim hall