how to mute an instrument in mp3 file ?

whatsup · 09-16-2009, 03:40 PM

like to know your ways to mute and/or extract single instrument, in a mp3 file.

what i think the most use of this, is to mute the vocal of the singer,
or to mute one of the instruments, and replace it by your.

Graeme · 09-16-2009, 04:04 PM

Basically, you can't.

OK, you might manage it using the same techniques as you would use on a wav file, but they're none too effective in the main.

the brok · 09-16-2009, 05:26 PM

a developer for sure would`ve found the holy grail if that would be possible reliably on all formats, beginning with wav`s ... the only app that can do that (once it will finally be released) is the new melodyne ... and it`s delayed since march last year, noone knows if it will be vapour ware forever ... i heard it on the music fair last year and it indeed sounded promising, though it`s yet to pass the reality-test ...
in short:
it`s not possible, with no software on the planet. there is software that can remove the mid signal of an audiofile combined with fft algo`s to remove vocals, but up to now this works rather mediocre ...

gofer · 09-16-2009, 05:37 PM

Melodyne DNA will also not do that. It can seperate pitches but not instruments. So if you were to filter out a vocal singing a G3, each instrument that will play a G3 at the same time will still be mixed with the vocal.

the brok · 09-16-2009, 07:01 PM

Quote:

Originally Posted by gofer

Melodyne DNA will also not do that. It can seperate pitches but not instruments. So if you were to filter out a vocal singing a G3, each instrument that will play a G3 at the same time will still be mixed with the vocal.

yes, it can (the new, still unreleased one).
on the music fair they showed the following:
having an audiofile containing a bass, an accoustic gutar and a drumset,
he was isolating first the guitar, re-harmonised thatone, then isolated the bass, reharmonised thatone, then played the fully re-harmonised track mixed together back again ... seriously, i don`t know if it was just a great fool, but what they showed worked, and that good. however, before i didn`t use it/test it myself, i`m quite skeptic ...
in an interview the developer said, that he really did not expect this to work at all, as it`s against all physics ...

Jae.Thomas · 09-16-2009, 07:10 PM

Quote:

Originally Posted by gofer

Melodyne DNA will also not do that. It can seperate pitches but not instruments. So if you were to filter out a vocal singing a G3, each instrument that will play a G3 at the same time will still be mixed with the vocal.

yes it will... or so it says. probably not so with harmonic and dense material tho.... so i think

Graeme · 09-17-2009, 01:25 AM

As we are at the moment, Melodyne DNA is little more than vapourware. A few closely controlled demonstrations are no substitute for working in the real world. It remains to be seen if they can really pull off this stunt on all types of source material - my guess is they won't, but I'm keeping an open mind on the subject.

In the meantime - and working with what already exists - the answer to the question is still no. Audition's "centre channel extractor" is, arguably, the best attempt that has been made so far. This feature does have its uses, but it's still a long way from achieving the sort of results the OP is looking for.

gofer · 09-17-2009, 01:40 AM

Quote:

Originally Posted by Jason Brian Merrill

yes it will...

No, it won't.
Melodyne DNA is very exiting, but it won't know which instrument plays a certain pitch. Watch http://revver.com/video/1102432/cele...scenes-part-2/ From 4.40 onwards Celemony's coding guru Neubaecker explains that what you get is more like a Piano roll staff of the whole material. You don't get staffs of seperated instruments.
So if DNA finds a certain pitch it might be played by multiple instruments. Muting or changing that pitch will affect that note for all instruments playing it at that given time.

That Chet Baker example from a last year's video works, because all the instruments are playing nicely seperated in different pitch ranges anyway.

TimOBrien · 09-17-2009, 07:52 AM

Aint. Gonna. Happen.

merdave · 09-22-2009, 03:15 PM

If you watch the videos (Parts II & III) at http://www.celemony.com/cms/index.ph..._betavideo&L=0
you will have a better idea of what the new Melodyne editor can do.

Coerce · 09-22-2009, 04:30 PM

It's like baking a cake and then trying to remove the eggs afterwards.

Jae.Thomas · 09-22-2009, 04:31 PM

Quote:

Originally Posted by Coerce

It's like baking a cake and then trying to remove the eggs afterwards.

not nearly as extreme lol

but the principle is similar, true.