How does a short video with vibrato make the background music louder when speaking?

1. Open the main interface of vibrato short video, and click the "Publish" button at the bottom.

2. Tik Tok's shooting page will pop up, and click the shooting button.

3. After the video shooting, click the "Select Music" icon in the upper right corner.

4. Next, on the opened audio track page, click the "Volume" tab in the lower right corner.

5. Then in the settings page that opens, you can easily adjust the volume of the soundtrack by dragging the slider of the soundtrack.