1. Open QQ music in Peiyin APP and switch to multi-channel mode.
2. Right click on the audio track 1- insert-audio file.
3. Click R of red track 2.
4. Click the recording sign in the lower left corner to start recording and dubbing.
5. After recording the part to be recorded, click Stop in the lower left corner.
6. Return to multi-channel mode and adjust the volume of accompaniment and recording.
7. Right-click Track 3- Mix to track all waveforms.
8. Switch to monorail mode and select the path to save track 3.