Songs With odd bpm's

[EdRyan]

Originally Posted by sureno

i think that applies to vinyl too, i got the voices and wanted to do a remix along the same lines of afro drum but am going with something else, going to see if melodyne can fix the timing??? i hate accapella b@ll@x

As for warping vinyl, it's the opposite to warping in Live. SO I was told..

On a vinyl, time isn't constant. Not only are there fluctuations caused by the deck motor, but also as the record plays inwards it takes less time to complete a cycle of the deck. This causes a bpm drift.

Not sure if I believe them though. If that was the case. Then it would have been nigh on impossible to mix tracks cut at 44 and 33 1/3 rpm, since the drift would occur at different rates. I've never had records drift on a turntable (unless the deck in in poor condition) so I don't believe what they told me. He's a bit of a wannabe music journalist, so he has something to say on everything. He's been wrong before.

When I warp from records, I tend to warp in 8 bar loops first, making sure that the loops go round perfectly. I then move the loop to the next set of 8, and check.
I always pick the left channel as a reference point visually, looking for the same point in the waveform to drop the marker. If it's not there, I'll go for the nearest,strongest point.

I'll stick up a set later. Some classic UKG. The shame (edit: Nostalgic fun) of playing to students who were still in nappies whilst I was raving

[modz1]

Originally Posted by EdRyan

SO I was told..

On a vinyl, time isn't constant. Not only are there fluctuations caused by the deck motor, but also as the record plays inwards it takes less time to complete a cycle of the deck. This causes a bpm drift.

Not sure if I believe them though.

Inclined to fall on your side of the fence there Ed. I've attended many vinyl cuts and never before has this been a raised or relative issue in all these years - Music journo's - shoot the lot of 'em

[sureno]

Have you guys not recorded a straight vinyl and noticed how the beats waiver on the beat lines?

i have to say i think vinyl isn't constant, almost impossible in my opinion. the cutting my be more constant but even that surely has erroneous factors

oh as for the vinyl cycle i have no idea

[Dave Boulden]

Originally Posted by EdRyan

SO I was told..

On a vinyl, time isn't constant. Not only are there fluctuations caused by the deck motor, but also as the record plays inwards it takes less time to complete a cycle of the deck. This causes a bpm drift.

You have of course correctly identified this as utter b@ll@x The time taken to complete a cycle of the deck is inherently constant at either 1.33 secs for 45RPM or 1.8 secs for 33 1/3RPM at every single point on the groove. Whilst angular velocity is constant, what *does* change is the linear velocity of the stylus within the groove which slows down as the groove approaches the center of the disc as it is traveling a shorter distance per revolution though still taking the same constant amount of time (which is the very same effect seen when reading CD-ROMs or ripping CDs, the read speed is lower nearer to the centre of the disc).

[EdRyan]

Not quite Paul. You can get lathe errors, but these tend to be rare. the lathe cuts very slowly to preserve accuracy. But if there was a problem here, it would be transferred into the dubs and plates used to create the record

You can get pressing errors, but they are so severe when they happen that the press has to be scrapped. Typically, the errors are either the record not being pressed centrally...which causes flutter/WOW. Or the plate is bent ,meaning the resulting records are also deformed (which generates WOW as well). But because the records are pressed, there isn't a rotation error like the one caused by playback.

I found this really good page on how records are made. Reading it now

http://eil.com/explore/guide/vinyl_making.asp

[sureno]

the deck is the usual culprit for dodgy timing imo
cheers for the link however i watch a video on the whole process, really interesting

[EdRyan]

Did you watch the video on the amen break ?