音声 を ビデオ に 追加 する - 音声 を 置き換える
ビデオに自分の音楽やオーディオを追加し,既存のサウンドトラックを交換する
オーディオ を ビデオ に 追加 する is an online video application on MiOffice AI that ビデオに自分の音楽やオーディオを追加し,既存のサウンドトラックを交換する. Files never leave your browser — private and secure.
By Jay at JSVV SOLS LLC
ビデオに自分の音楽やオーディオを追加し,既存のサウンドトラックを交換する.
How It Works
Related Applications
Frequently Asked Questions
Upload both files: one video and one audio (MP3, WAV, M4A, AAC, OGG, or FLAC). The audio replaces the original sound track and the output downloads as MP4.
The audio is trimmed to match the video duration. The video length always stays the same.
The remaining video portion will have silence. If you need the audio to loop, extend it first with an audio editor before uploading.
This tool replaces the original audio entirely. For mixing two audio tracks, you would need a desktop editor like DaVinci Resolve or Audacity.
MP3, WAV, M4A, AAC, OGG, and FLAC. The audio is re-encoded to AAC in the MP4 output.
500MB combined for both the video and audio files. Processing happens in your browser.
Yes. Record your voiceover separately as an MP3 or WAV, then combine it with your screen recording here.
No. FFmpeg WASM processes both files entirely in your browser. Nothing leaves your device.
Yes, the video is re-encoded to H.264 MP4 to ensure the new audio track syncs properly with the video stream.
Depends on file size. A 100MB video with a 5MB audio file typically takes 1-3 minutes in the browser.