Convert M4A to WAV
M4A is compressed for size; WAV is uncompressed, which is what audio editors, DAWs and transcription pipelines often want to work from. This decodes an M4A to a WAV file with WebCodecs in your browser, so the audio is never uploaded and there is no cap on size or count.
全部在你的浏览器里完成，文件不会上传。
Load an audio or video file to start.
为什么选 ScribeToAny
- 支持上传 MP3、MP4、M4A、MOV、AAC、WAV、OGG、OPUS、MPEG、WMA、WMV,视频自动提取音轨。
- 约 98 种语言,自动检测,基于专用 GPU 上的 Whisper 级引擎。
- 8 种导出格式:TXT、SRT、VTT、TSV、CSV、JSON、PDF、DOCX,还支持批量打包 ZIP。
- 说话人识别为每段标注发言者,点击任意句子即可回放对应原声。
常见问题
Why convert to WAV?
WAV is uncompressed PCM, so it is the clean, editable master that editing software and mastering tools expect. It is a larger file, but there is no further quality loss the way there is when re-encoding to another compressed format.
Is the file uploaded?
No. The conversion runs with WebCodecs on your device, so the audio never leaves the browser — no account, no quota, no size limit. Chrome, Edge and Firefox work best.
相关工具
免费开始转录
免费额度:每天 2 个文件、每月 100 分钟,无需绑卡。
免费开始转录