1. Put the video you need to process on the Au track.

2. press Ctrl+A to select audio.

3. Click the effect of the menu bar, select the stereo sound image, and then click Extract Center Channel.

4. Click the preset, choose to remove the voice and keep the accompaniment.

5. Click on the preset, select the unaccompanied harmony to reduce the accompaniment sound, enhance the human voice, and select the later application.

6. After generating new audio, right-click the audio and select Save as.

7. Select MP3 audio mode as the format and save it. At this point, the voice in the video is successfully separated from the background music.