Keeping 2 audio files in perfect sync

[foRUMS 4 punkdISCO]

Live is wonderful, Andy.  You will love it..

 

Btw, what is the “classic 80s song” you are working on?  :)

 

Let us know how you get on.

 

Paul

London

www.punkdisco.co.uk

 

From: Andrew Robinson [mailto:andrew at bml.co.uk] 
Sent: 14 November 2014 14:32
To: Music-bar
Subject: Re: Keeping 2 audio files in perfect sync

 

If I can do this with sample accuracy, it sounds ideal! 30 day trial of live downloading now...

 

Thanks Gert!

 

- Andy_R

 

On 14 November 2014 14:27, Gert van Santen <g.vansanten at upcmail.nl <mailto:g.vansanten at upcmail.nl> > wrote:

Andrew Robinson schreef op 14-11-2014 15:17:

 

A bit of an odd question, but someone might have an idea about
how to do this...

I've got 2 high res (24bit 96Khz) files. They are the vocal and
instrumental versions of a classic 80s pop song. I'm fiddling
about with my own remix, and I'd love to do the 'subtract one for
the other to get an acapella' trick. This usually works really
well on digital files, especially when the mixes are otherwise
identical as these are. The problem with these ones is that they
are not quite digitally identical, but have each been through an
analogue tape stage, which has introduced a *tiny* bit of speed
instability, inaudible, but enough to make digital subtraction a
nightmare as the files drift away from each other by up to about
50 samples per bar. I can match up .2 to .5 second bits perfectly
and get a tiny snippet of crystal clear acapella, but what I
really need is a way of either automatically phase-locking the
files, making almost imperceptible pitch bends, or automating
very very short delay changes.

Logic Pro is frustratingly hopeless at this, it provides a sample
accurate delay plug in, with sample accurate automation on the
delay times... but the automation can only be set in massive
clunky increments, and I can't find any way at all to adjust it
precisely.

Any ideas, folks?

- Andy_R

 

Hm, I think Ableton Live will be able to do this quite well. You can set markers anywhere in an audiofile and get great results. I have done this a couple of times myself with audio.

But...
1. Perhaps you don't have Live.
2. Perhaps this still isn't exactly what you are looking for...

Cheers,

-- 
Gert

gert van santen
www.gertvansanten.nl <http://www.gertvansanten.nl> 
_______________________________________________
music-bar mailing list
music-bar at lists.music-bar.org <mailto:music-bar at lists.music-bar.org> 
http://lists.music-bar.org/cgi-bin/mailman/listinfo/music-bar

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.music-bar.org/pipermail/music-bar/attachments/20141115/394a9783/attachment.html>