Tools required: computer, third-party software.

1. Download Haoai editing software on your computer.

2. To add and intercept song clips, click the "Video" tab at the top of the software's main interface, and click the "Add Video" button below the video list.

3. Click the "Magic Function" tab below the video preview box in the "Preview/Interception" dialog box, and in the "Function applied to video" drop-down box in the "Magic Function" panel, select " Slow motion effect is enough.

4. In the "Function applied to video" drop-down box in the "Magic Function" panel, select "Fast Forward Effect", and then slide the "Acceleration Rate" below it. Just set a value at the lever. The larger the value, the faster the video speed will be after adjustment.

5. Add background music or sound effects with one click in the "Audio" tab. You can also use the small pickup button. Intercept audio clips as you like, adjust the playback time at any time, and check "Fade in and out of sounds at the beginning and end" with one click to make different audio clips transition naturally, and soundtrack the video very quickly.