vocal time stretch conundrum

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vocal time stretch conundrum

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dannyb1
Tourist

Registration Date: 22-07-2009
Posts: 17

hi guys another question from me (all your other answers have been put to good use)
i have a accapella that i have chopped in segmants chorus,hook etc etc and just needed to know how to stretch these vocals to fit my 175 track.
i know there is maths involved which aint my strong point i know it's something like length * speed * bars i think.
im using cool edit so if you have any pointers then i'd be more then greatfull

27-07-2009 15:38

Halph-Price Halph-Price is a male

Zombie Algorithm

Registration Date: 22-12-2004
Posts: 6,160

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cool edit, ha. i dunno what to tell, you it's hard to strech it once it's chopped up after.... i like to strech them all in one go.

albeton live is better for that.

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This post has been edited 2 time(s), it was last edited by Halph-Price: 27-07-2009 18:26.

27-07-2009 18:25

dannyb1
Tourist

Registration Date: 22-07-2009
Posts: 17

yes cool edit but allso have soundforge recycle logic 5.5.1 and a pitchshifter prog that i aint installed yet.
well i still have the whole accapella so do you have any advice for either of these progs

27-07-2009 18:28

Halph-Price Halph-Price is a male

Zombie Algorithm

Registration Date: 22-12-2004
Posts: 6,160

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logic GET now. it has the best timestrech.

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27-07-2009 18:36

dannyb1
Tourist

Registration Date: 22-07-2009
Posts: 17

it would be good if i could use logic i have it installed and starts on the window with 2 audio channels and the rest as instruments. when i used it round a friends house years ago he had it set up with 8 audio channels that you could drop wavs on but mine does not seem to wanna do that????

27-07-2009 18:49

Krisch Krisch is a male

Wicked Producer

Registration Date: 19-02-2008
Posts: 326

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What is the original tempo of the samples?
You can stretch them in cool edit too. I can't remember how exactly but you can use the help Wink

I think there is a stretch effect on the effects list.

27-07-2009 22:37

cynik

Cp6uja

Registration Date: 15-03-2005
Posts: 5,646

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make at least one of the samples fit by hand

from the lenght of the original snip (l) and the new lenght (n) find out the percentage of stretch (x):

x / n = 100 / l

from which

x = (100*n) / l

"100" is actually 100% of speed of the original sound. you dont say if you have to slow it down or speed up, so the (x) is going to be either a bit below or over

if the daw doesnt have percentages but multiplication, multiply number 1 with the percentage you get from the equation...

yeah and tell me if you tried it cause this is all improvising, never really tried Big Grin

_edit: dont decrease decimals in equation. the more precise you measure the lenght, more precise the stretching percentage will be...

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This post has been edited 1 time(s), it was last edited by cynik: 28-07-2009 01:21.

28-07-2009 01:18

selig
Steppa

Registration Date: 10-07-2008
Posts: 159

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This page might help with the maths.

http://mp3.deepsound.net/eng/samples_calculs.php

28-07-2009 10:37

dannyb1
Tourist

Registration Date: 22-07-2009
Posts: 17

interesting tips a friend of mines coming over and showing me a way with virtual dj then cool edit???
will post up what i have learnt

28-07-2009 12:13

selig
Steppa

Registration Date: 10-07-2008
Posts: 159

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quote:

Originally posted by dannyb1
interesting tips a friend of mines coming over and showing me a way with virtual dj then cool edit???
will post up what i have learnt

Personally I think the easiest way would be to download reaper, load the sample in that and then simply press Alt and drag the edge of the sample as much as you want it time-stretching. You might also want to change the time-stretch algorithm too.

http://www.cockos.com/reaper/index.php

29-07-2009 11:08

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