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

2. The Douyin shooting page will pop up, and just click the shooting button.

3. After the video shooting is completed, click the "Select Soundtrack" icon in the upper right corner.

4. Next, in the opened soundtrack page, click the "Volume" tab in the lower right corner.

5. Then in the settings page that opens, drag the slider of the soundtrack to easily adjust the volume of the soundtrack.