1. Open quick editing and click New Video.

2. Click Quick Mode, then click Local Video.

3. Find the audio you want to process, select it, click Open, and then click Edit Sound.

4. Click to add sound effects, and the system will provide some music. If you think it is suitable, click Use after the music. You can also click on local sound effects, select it, click to open, and then click to use. After confirming that there is no problem, click Save and Export.

5. Select to export only the audio, and then click to start exporting. The system will convert the audio, and it will be ready after the system conversion is completed.