Karaoke-plugin-for-audacity [verified] -

effect. It works on a simple principle of phase cancellation: because lead vocals are typically mixed in the "center" of a stereo track (equal in both left and right channels), the software can subtract one channel from the other to "cancel out" the voice while leaving the instruments intact. Audacity Forum The Limitation

Use the Vocal Reduction and Isolation effect. For better results, modern AI tools like Media.io or Spleeter can separate tracks before importing them into Audacity. KARAOKE-PLUGIN-FOR-AUDACITY

A popular third-party plugin used for autotuning and octave doubling to refine recorded vocals for the final mix. effect