Method 1: Open thousands of video files, pay attention to creating a new directory when opening, and avoid overwriting previous songs with the opened files. Then select the file to be modified, right-click and select the conversion format, so that the sound can be converted into the audio format you want. Method 2: If you think the music in the video is too long and want to cut a part, use this software. Cool editor pro 2.0 /search.php? Cmd = search and search. So = cool+editing+major & ampx=3 1. Y=9 Dot, please download version 2.0 and register for free. I wrote an article in Baidu with pictures for you to see. You can refer to:/%CC% EA% B9% E2% B8% F6% CD% B7/blog/item/60A95A176EDC3C83D6D73. HtmlCool Edit Pro was developed by Syntrillium Software Company of the United States. This is an excellent digital music editor and MP3 production software. Many people describe Cool Edit as an audio "painting" program. You can "describe" the system with sound: tone, part of a song, voice, string, vibrato, noise or silence.