立体声转单声道与声道处理
修复只有一只耳朵有声音的问题
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此工具及本页说明目前仍为英文。功能完全相同：一切都在你的浏览器中运行。
Drag & drop a video or audio file here
or
MP4, MOV, WebM, MKV, MP3, WAV, M4A, OGG or FLAC
Your files stay on your device. Nothing is uploaded.
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- 服务器不限制文件大小
- 无需注册，无水印
- 免费
How to fix one-sided audio
- Choose an audio or video file.
- Pick what to do: mix to mono, use the left or right side in both ears, or swap them.
- Download the fixed file; a video keeps its picture as it is.
Which option to pick
| Problem | Choose |
|---|---|
| Sound only in the left ear (a lavalier or camera mic on one channel) | Left in both ears |
| Sound only in the right ear | Right in both ears |
| Left and right are the wrong way round | Swap left and right |
| You want one channel for speech, a phone or a smart speaker | Mix to mono (and "Save as a mono file" for audio) |
Good to know
- Mixing averages the two sides, so each is half as loud and the two together never distort. If the sound is only on one side, picking that side keeps it at full volume.
- Surround sound (5.1) can be mixed down too: all channels are averaged.
- The sound is re-encoded at high quality; the picture of a video is copied without any change.
Your files stay on your device
Everything happens in your browser. Your files are never uploaded, and this site's security policy blocks the page from sending files anywhere.
常见问题
Does mono make the file smaller?
Saved as a mono file (one channel), an uncompressed WAV is half the size; MP3 and other compressed files get a little smaller.
Is my file uploaded?
No. Everything happens in your browser.