Replace BGM
Replace video BGM: pick the video and a new track, preview the mix, and adjust video and audio gain.
After submitting, track progress in “My Works”. Please download promptly when done—files are cleared after 3 days.
Video
Common containers such as mp4, mov, mkv, webm—same large-file upload path as mute/clip.
Background music
Common formats: mp3, wav, m4a, aac, flac
Background music level
Gain in dB relative to default. Preview and submit apply to the new music track only.
When music is shorter than the video
If the selected music clip is still shorter than the video, the options below become selectable.
Export format
Resolution
Quality
Frame rate
Tips
- Want only the chorus? Narrow the range handles on the waveform timeline.
- Music shorter than the video: loop vs tail-silence stays visible under Volume; it unlocks when the clip is shorter than the video.
- Multiple cues and volume envelopes will arrive in a later release.
How to use
- Upload the picture and a new score (AI music works too).
- Balance levels and choose whether to keep speech.
- Download the mux; add subtitles if needed.
Scope and limits：Replacing BGM does not change picture rights. You must own both assets.
Search and usage guide
Replace BGM keeps the picture and swaps the score: upload the cut and a new track, balance levels, mux. Mute first if the old bed fights the new one. Aurols AI music can supply the bed.
For ads, vlogs, and VO films. Loop or trim music that is shorter than picture; align in/out if it is longer. Check speech vs music loudness before export.
Not audio merge (head-to-tail audio only) and not video editor (that changes duration). Commercial use needs licenses for both picture and music.
Replace BGM on this page, /en/video/replace-bgm. You must have rights to use both the picture and the new track.
FAQ
How do I replace background music in a video?
Upload video and new BGM (or pick allowed library assets if offered), balance levels against any retained sound, and export. Use when original music must go. Strong original bleed may need mute or stem extract first.
Video and audio formats?
Video: common MP4/MOV; audio: MP3/WAV etc. per list. Export codec/resolution selectable; loop or trim BGM if shorter than picture. You must secure rights to all music you add.
Working with Aurols AI music creation?
Generate an original bed on MediCut AI music creation, download, and upload here—creation-to-video scoring in one stack. Or extract tracks to study before replacing. The platform does not warrant third-party clearance; see Terms for commercial use.
Do I still need mute after replacing BGM?
If the original bed is already quiet, swap and duck it. If dialogue or old music fights the new track, mute first. For VO films, check speech is not buried before you export.