the operation steps in this case are as follows:

1. open Tik Tok APP and enter the shooting page.

2. click the "+"sign in the lower right corner to select the video material to be recorded.

3. after entering the recording interface, click the "sound effect" button at the bottom of the screen.

4. select the "sound change" option in the sound effect library, and select the sound effect you want.

5. click the "original sound" button at the bottom of the screen, and add the selected sound changing effect based on the original sound.

6. If you need to record dubbing, you can record it directly in the recording interface.

7. After recording, edit the video, adjust the sound effect and dubbing volume, and then release it.