On 11/24/2015 05:57 PM, F. Silvain wrote:
Hey hey,
it's easier to describe the problem I think.

I hae two pieces, one the song with vocals, the other the exact same song, but only the instrumental. Now I'd love to isolate the voice by alligning them and mixing them with one having inverted phase. Since I can't see, and apparently often instrumentals don't start at exactly the same time, I need a way to synchronise those tracks. time shifting by hand is very tedious and hasn't yet yielded a perfect result. There are other issues, which can cause "confusion", so I'd like to get this one out of the way.

Does anyone know of a way to do it from the commandline? Sometimes alligning the beginnen of a piece (the onset of sound) might do, but sometimes it's a little more complicated. Anything from Sox to Csound will do. :)

I appreciate any hint in the right direction! Thank you!

Ta-ta
----
Ffanci
* Homepage: https://freeshell.de/~silvain
* Twitter:  http://twitter.com/ffanci_silvain
* GitHub:   https://github.com/fsilvain
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user@lists.linuxaudio.org
http://lists.linuxaudio.org/listinfo/linux-audio-user


sorry f, meant to send to list:
you could assign a midi controller (knob, fader, etc) to a delay time parameter.
maybe something like this in ecasound(except with delay):
http://ecasound.seul.org/ecasound/Documentation/examples.html#midi-io
you may be able to specify the parameter range and possibly assign 2 controllers (
for coarse/fine) to the delay time parameter so you could "shuttle" the delay time in real time by ear.  i've done something like this before except with eq filters but its been while.  i'll see if i can find what i did.
tweed

-- 
www.the-temp-agency.com/lollipop-factory