24 Nov
2015
24 Nov
'15
11:58 p.m.
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
25 Nov
25 Nov
12:19 a.m.
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
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Linux-audio-user(a)lists.linuxaudio.org
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Hi,
Admittedly a bit of a strange answer, but if you have the Kdenlive video
editor installed recent versions (0.9.X) have a handy feature to
automagically align audio tracks from different camcorders that have
recorded the same content.. So in your case you could try importing the 2
audio files to 2 Audio timeline tracks in Kdenlive then set one as the
audio reference and then align the other to the reference... Then you can
export them from Kdenlive as Audio only..
Might be worth a try if you already have it, in my experience with
aligning audio feeds from multiple camcorders the audio alignment feature
in Kdenlive works flawlessly...
Good luck! Glen
12:26 a.m.
Glen MacArthur, Nov 25 2015:
...
Admittedly a bit of a strange answer, but if you have
the Kdenlive video
editor installed recent versions (0.9.X) have a handy feature to
automagically align audio tracks from different camcorders that have
recorded the same content..
...
It's been a long time, since anyone near me worked with Kdenlive, but I suppose, that
it is still purely graphical, which would be a down right killer there, no sight and my
system is too old and probably slow to install the newest Orca, which _MIGHT_! be able to
work with Kdenlive. To be frank, I haven't really used the screenreader for the GUI
much at all. Commandline is mostly much easier to maintain and faster to work with for me.
:( Still an interesting and generally feasable sounding idea!
Ta-ta
----
Ffanci
* Homepage: https://freeshell.de/~silvain
* Twitter: http://twitter.com/ffanci_silvain
* GitHub: https://github.com/fsilvain
26 Nov
26 Nov
5:46 a.m.
F. Silvain wrote:
Glen MacArthur, Nov 25 2015:
...
My sincere apologies for not reading your original post more thoroughly. I
missed the reference to sight being an issue when I responded.
Glen
Admittedly a bit of a strange answer, but if you
have the Kdenlive video
editor installed recent versions (0.9.X) have a handy feature to
automagically align audio tracks from different camcorders that have
recorded the same content..
...
It's been a long time, since anyone near me worked with Kdenlive, but I
suppose, that it is still purely graphical, which would be a down right
killer there, no sight and my system is too old and probably slow to
install the newest Orca, which _MIGHT_! be able to work with Kdenlive. To
be frank, I haven't really used the screenreader for the GUI much at all.
Commandline is mostly much easier to maintain and faster to work with for
me. :( Still an interesting and generally feasable sounding idea!
Ta-ta
----
Ffanci
* Homepage: https://freeshell.de/~silvain
* Twitter: http://twitter.com/ffanci_silvain
* GitHub: https://github.com/fsilvain
25 Nov
25 Nov
1:01 a.m.
New subject: Alligning audio without graphics (for phase inversion cancellation)
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(a)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
7:46 a.m.
Tweed, Nov 25 2015:
...
you could assign a midi controller (knob, fader, etc)
to a delay time
parameter.
...
Hey hey Tweed,
oh dear! Thank you very much! I should have thought of that. I've done something
similar more than often enough in Nama. That comes from trying to be too clever. :(
Ta-ta
----
Ffanci
* Homepage: https://freeshell.de/~silvain
* Twitter: http://twitter.com/ffanci_silvain
* GitHub: https://github.com/fsilvain
26 Nov
26 Nov
12:52 a.m.
New subject: Alligning audio without graphics (for phase inversion cancellation)
On 11/25/2015 01:44 AM, F. Silvain wrote:
Tweed, Nov 25 2015:
...
Hi Ffanci,
glad to help! it made me find my scripts and .ecs files (for the
example I gave) which was long overdue so thank you!
@ gmaq: didn't know kdenlive had that function. pretty cool!
tweed
--
www.the-temp-agency.com/lollipop-factory
you could assign a midi controller (knob, fader,
etc) to a delay time
parameter.
...
Hey hey Tweed,
oh dear! Thank you very much! I should have thought of that. I've done
something similar more than often enough in Nama. That comes from
trying to be too clever. :(
Ta-ta
----
Ffanci
* Homepage: https://freeshell.de/~silvain
* Twitter: http://twitter.com/ffanci_silvain
* GitHub: https://github.com/fsilvain
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6 comments
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participants (3)
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F. Silvain -
Glen MacArthur -
Tweed