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Isolated bass tracks
#2717783 09/02/15 01:41 PM
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Does anyone know what software is used to create the isolated bass tracks (or vocal tracks) that are sometimes posted on YouTube?

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Re: Isolated bass tracks
jeremy c #2717933 09/02/15 08:57 PM
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I think it's usually somebody who managed to get their hands on the original tracks. I'm not aware of anything that will isolate tracks like that. The closest is vocal eliminator software, but all that does is subtract left from right so that anything panned dead center goes away.


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Re: Isolated bass tracks
J. Dan #2717941 09/02/15 09:30 PM
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I asked because I just met a engineering grad student here at UC Berkeley who is working on a project to isolate separate voices. He called it "the cocktail party problem."

Re: Isolated bass tracks
jeremy c #2717945 09/02/15 09:41 PM
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I would think that would apply more towards hearing aid applications where you want to isolate the closest voice and filter out the background noise.


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Re: Isolated bass tracks
J. Dan #2717960 09/02/15 11:07 PM
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Well, I do know that there's a pedal that emulates a 12 string guitar by isolating each string and then doubling that note either an octave above or in unison depending on what string the computer thinks is being played, and it does this in (almost) real time. That's pretty cool. So if software can do that, I'll bet some smarty pants is hacking away at subtracting out background noise in hearing aids, as well as subtracting out the rest of the goddamn band that nobody wants to hear anyway.

But I also did think that the isolated tracks where from the session tapes. But that was just an assumption since these tracks never had any label or explanation to them. I'm intrigued.

"Cocktail Party Problem" is not a good name for a band. So don't go there.


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Re: Isolated bass tracks
Paul K #2718036 09/03/15 11:15 AM
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As far as youtube iso tracks go, some are definitely session tapes, and others seem to be from Rock Band/Guitar Hero type "play along" video games.

I know nothing about hearing aids. I wear earplugs. wink



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Re: Isolated bass tracks
wraub #2725107 10/01/15 09:00 PM
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Wraub is right on the money about the isolated tracks. They were bought by the Rock Band company and somebody there has been leaking them out.

Here's an interesting article about the whole mishegoss.

http://www.premierguitar.com/articles/22144-recording-guitarist-outlaw-recording-lessons

Re: Isolated bass tracks
jeremy c #2725320 10/03/15 08:09 AM
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Originally Posted By: jeremy c
I asked because I just met a engineering grad student here at UC Berkeley who is working on a project to isolate separate voices. He called it "the cocktail party problem."


my previous employer, harman, has some software that does some pretty impressive stuff along these lines. it's called quantum logic surround. it was capable of separating out individual tracks using some advanced DSP algorithms.

Re: Isolated bass tracks
rumpelstiltskin. #2725667 10/05/15 12:39 PM
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I know that some of these ISO tracks that turn up online are the result of some filtering. But in those cases the bass tracks end up sounding somewhat anemic. You get more of the fundamental attack and that's it. The process tends to kill a lot of the overtones that might have actually been part of the recorded performance. I know that I've noticed that with some isolated Paul McCartney/Beatles bass parts.


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Re: Isolated bass tracks
Nicklab #2727398 10/12/15 12:21 PM
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given what i've read about the limitations they had in recording it may well be completely impossible to have a true isolated tracks from the beatles.

Re: Isolated bass tracks
Nicklab #2727400 10/12/15 12:27 PM
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given what i've read about the limitations they had in recording it may well be completely impossible to have a true isolated tracks from the beatles.

Re: Isolated bass tracks
rumpelstiltskin. #2727653 10/13/15 11:31 AM
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Here's one good example:

Last edited by Richard W; 10/13/15 11:32 AM.

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Re: Isolated bass tracks
rumpelstiltskin. #2727761 10/13/15 06:26 PM
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Originally Posted By: rumpelstiltskin.
given what i've read about the limitations they had in recording it may well be completely impossible to have a true isolated tracks from the beatles.


Absolutely. Watching some of The Beatles Anthology I was genuinely shocked. Sgt. Pepper's Lonely Hearts Club Band was recorded on 3 tracks. When you consider those technical limitations and the level of pre-planning and arrangement you would need to make that work? It's that much more genius.


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