The latest articles on DEV Community by Shawn Sun (@voiceisolatorcom). https://dev.to/voiceisolatorcom https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F4244068%2F4ed38fe9-3224-4889-b95e-a676f106eab3.png https://dev.to/voiceisolatorcom en Shawn Sun Sat, 14 Nov 2026 07:43:09 +0000 https://dev.to/voiceisolatorcom/how-to-separate-a-voice-from-music-or-noise-in-a-video-1nj6 https://dev.to/voiceisolatorcom/how-to-separate-a-voice-from-music-or-noise-in-a-video-1nj6 <p>When a recording has speech or singing mixed with music, or with wind and street sound, I often want two separate tracks: the voice, and whatever was around it. I work on a small web tool that does that split, for audio files and for video.</p> <p>For a video, the browser reads the audio first. Only the sound is sent to a GPU server. The picture stays on your device, and the isolated voice or the leftover background is written back into the same picture, so you get a video out, with no watermark. Audio can be downloaded as MP3, WAV, or FLAC. Uploads listed on the site are MP4, MOV, WebM, MP3, WAV, M4A, FLAC, and OGG.</p> <p>Processing starts in music mode, which the site describes as the fit for songs and soundtracks. If the problem is wind, a fan, or street sound behind someone talking, you can rerun the same file in noise mode at no extra cost. On the result page you can switch between the original, the voice only, and the background only, at the same moment in the recording.</p> <p>You can use one file a day with no account, and one more after you sign in, for files up to 10 minutes, with full-quality downloads.</p> <p>I'm Shawn Sun, and I work on this tool. The homepage is <a href="https://voice-isolator.com/" rel="noopener noreferrer">voice-isolator.com</a>.</p> webdev music