本地频道转换

立体声转单声道

直接在浏览器中将立体声或多声道独立音频转换为单声道 MP3 或 WAV 文件。

将音频缩混为单声道

上传音频文件，选择 MP3 或 WAV，然后导出单声道版本以进行旁白或兼容性。

Drop an audio file here MP3, WAV, M4A, AAC, FLAC, OGG, or WebM audio up to 1.5 GB.

Audio processing happens locally in this browser tab. Large uncompressed files can still use a lot of memory, especially on older laptops.

FFmpeg downmixes channels into one mono track, so left and right content are combined.

Mono 可以使电话、笔记本电脑和会议工具上的语音音频更加可预测。

The desktop app is better for long recordings, repeated exports, and finishing work after screen recording.