Removing...

mop · Post by **mop** » 17/10/2004 - 12:35

Is there a way to get rid of musicm and just keep lyrics. I'm bad at this and just beginning. im using ACID

Romeo Knight · Post by **Romeo Knight** » 17/10/2004 - 21:26

If you think about separating the voice/singing from a mix, then no.

Just try this: Invert the phase of one channel of the stereo mix and then mix them both together.
You'll realize that all instruments that are completely mono will be erased.
All instruments that are some kind out of phase (wich are almost all instruments that sound stereo) will stay or get louder (depends on the amount of phase shift before).
Conclusion: Since the pure voice is almost always mono, it's only possible
to remove it from the mix, and not the other way round. Bad luck.

Bye,
Eike

Post by **Slaygon** » 19/10/2004 - 12:57

Romeo Knight wrote:Conclusion: Since the pure voice is almost always mono, it's only possible to remove it from the mix, and not the other way round. Bad luck.

Just a thought - If it is possible to remove the voice only from the mix, shouldn't it be possible to invert the original mix with the result of the mix without the voice, and get only the voice that way?

I have no idea how this stuff works, but that seems like it would be feasable.

Romeo Knight · Post by **Romeo Knight** » 19/10/2004 - 16:08

Slaygon wrote: Just a thought - If it is possible to remove the voice only from the mix, shouldn't it be possible to invert the original mix with the result of the mix without the voice, and get only the voice that way?

I have no idea how this stuff works, but that seems like it would be feasable.

Well, theory vs. practical experience makes the difference and everything is relative

:
1. The pure voice in most cases is not the only thing that's mono, so you'll
remove any other mono signals (such as snare, bassdrum, bass) from the mix.
2. In real life, there is no mix with only pure voice - you'll always have reverb, delay, any kind of room or other effect on the voice (more or less). And the effects naturally create stereo signals.
3. To answer your thought: You'd just have to mix both channels to 1 mono channel to have your prognosed result of only having the voice left over. Practically this is impossible because that would mean that any other instrument than the voice would have to have a phase shift of about 180 degrees. Even the worst shittiest stereo mix does not provide that.
A good mix nowadays is mono compatible to let the music still sound ok on a mono radio, where both stereo channels are in fact mixed to one mono channel. This means that all stereo signals do better not phase shift more than 90 degrees or they will sound significantly lower.
So any result is relative and due to way the song is mixed and stereo instruments/effects are used.

Just for better comprehension:
phase shift 0 degrees: mono
phase shift 1-90 degrees: stereo, mono compatible
phase shift 90-180: stereo, mono incompatible

Hope this helps a bit...

DHS · Post by **DHS** » 19/10/2004 - 17:24

or either, grab this:

http://www.analogx.com/contents/downloa ... emover.htm

it's done to make exactly the inverse work (drop vocals), but, depending on how the source matherial is mixed, it can do the job.