How To Make An Acapella from a Song Using Audacity.

There are certain methods available to users of audacity,and I have used them to make acapellas that worked very well (sometimes the drums show up)

1. Noise Reduction 0 this is a pretty simple method, I’ll use In For the Kill (Skreams remix) by La Roux as an example. Right, say you wanted to remove the high notes from th background, highlight the intro of the song where just a high note is playing. Then go to Effects->Noise Removal and Choose "Get Noise Profile" and then highlight another part of the song that has the vocals on aswell as the high note. Then Choose Noise Reduction, and preview it. Play around with the level of reduction you want, until you get something that removes the sound with little distortion. This can be repeated for different sounds, but be wary of repeatedly doing it and causing massive distortion.

2. Using High Pass and Low Pass Filters – Highlight a part of a song (say the part near the beginning with the very low bass) and select Effects – High pass filter and once again play around until you find a setting that delivers a decent reduction in high or low noises.
And as someone has mentioned before, if you’re lucky enough to get your hands on an instrumental, you can always invert it and mix the tracks.
To do this, find an instumental that is EXACTLY the same as the one in the song from which you’re ripping the acapella. MAke sure they are lined up perfectly, which is easily done, just look on the waveform for obvious spikes that are beats. Then invert the instrumental track,and play both tracks. They should in theory cancel out and be left with just the vocals. This method can also be reversed if you have the vocal acapella and and and the full song, and you want to extract the instrumental.

I made this post so that people who want help and who don’t have access to more expensive programs can do it their way. happy mixing!