Jump to content
Electronics-Lab.com Community
Sign in to follow this  
Guest nanop

Vocal Remover Circuit

Recommended Posts

Guest nanop

Hi,
I heard about a vocal remover circuit, it would remove the vocals from most songs.

Can u tell me how it works?
Know of any or have any vocal remover circuits?

Thanks a lot

Share this post


Link to post
Share on other sites

Vocals in a recording are usually on both stereo channels at the same level (in mono). A vocal remover circuit adds the frequencies of voices from the other channel out-of-phase so it cancels the same signal in the channel that is in-phase. When music is normally different on each stereo channel then the music doesn't cancel. The mono bass is filtered out of the adding circuit and goes unchanged.

Go to Google and search for Vocal Remover Circuit and the 1st link is a kit with a parts list, pcb and schematic.

Share this post


Link to post
Share on other sites
Guest nanop

A vocal remover circuit adds the frequencies of voices from the other channel out-of-phase so it cancels the same signal in the channel that is in-phase.


Can u explain to me more about how this works?

Thanks

Share this post


Link to post
Share on other sites

Can u explain to me more about how this works?

Both stereo channels have the vocals at the same level (in mono) and both are in phase.
The circuit takes the 1st channel's vocal sounds, inverts their phase with an opamp inverting amplifier then adds them to the 2nd channel's original sound. Since the sounds are the same but with the opposite phase then they cancel.
Normal stereo music is different on the two stereo channels. Therefore it doesn't cancel.

Share this post


Link to post
Share on other sites

You can get a vocal remover patch for Winamp here:  http://www.analogx.com/contents/download/audio/vremover.htm
It uses a digital algorithm instead of hardware.

MP

Share this post


Link to post
Share on other sites

Stereo is recorded on 2 channels and surround sound uses 4 or 5 channels. There are some Oriental ICs that produce fake surround sound when the input is ordinary stereo. Some people think it sounds real. 

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
Sign in to follow this  

×
×
  • Create New...