The free, open source Audacity audio editing software includes a plug-in that removes the vocals from a song without altering the remaining audio. When a music producer records a song, he usually places the vocals, often the most prominent element of the recording, in the centre audio channel. This leaves the instrumental parts on the left and right channels. Audacity's Vocal Removal plug-in replaces the centre channel with the audio from the left and right channels, cancelling out the vocals.
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Double-click the "Audacity" desktop icon to launch the program. Click "File," then "Open." Double-click the song file that you want to edit.
Open the "Effect" menu, then select "Vocal Remover (for Center-panned Vocals)" from the menu. If you don't see the Vocal Remover effect in the list of effects, click the down arrow icon at the bottom of the pop-up menu until you reach the bottom of the list. Select "Remove Vocals" from the "Remove Vocals or View Help" drop-down menu in the window that pops up.
Select "Simple (Entire Spectrum)" from the "Removal" drop-down menu if you want to use the basic vocal removal effect. To remove or retain a certain range of frequencies in the song, select "Remove Frequency Band" or "Retain Frequency Band." Type the frequency range that you want to delete or retain into the "Frequency Band Lower and Upper Limit [Hz]" text field.
Click "OK." The Audacity Vocal Remover plug-in processes the audio and removes the vocals from the song.
Tips and warnings
- The Vocal Removal plug-in works best on uncompressed or lossless audio.
- If you want more control for the vocal removal process, try the third-party VST plug-ins Extra Boy, Voice Trap and Kn0ck0ut.
- You can only remove the vocals with the Audacity Vocal Removal plug-in if the vocals are panned to the centre of the song's stereo field.
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