To participate in the dubbing competition, you need to eliminate the sound in the video and retain the sound effects. You can refer to the following methods: 1 Use video editing software such as Adobe Premiere Pro, Final Cut Pro, iMovie, etc. to import the video, select the sound layer, delete the audio wave part or mute it to eliminate the sound in the video. 2 If you are using a newer video editing software, you can try to use the audio editing function to delete or mute the audio in the video or use audio effects such as noise reduction, volume reduction, etc. to reduce sound interference. 3 If you are using a web-based video editing tool, you can try to use online tools such as VLM Media Player, Video Editor in the Chrome-based browser, etc. to import the video, select the sound layer, delete the audio wave part, or mute it to eliminate the sound in the video. No matter which method you use, you need to process the audio to ensure that the sound effect is not affected. At the same time, you need to pay attention to the volume and sound quality of the audio that may be affected after the sound is eliminated. You need to adjust it according to the actual situation.