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.
全部在你的瀏覽器裡完成，檔案不會上傳。
Load an audio or video file to start.
為什麼選 ScribeToAny
- 支援上傳 MP3、MP4、M4A、MOV、AAC、WAV、OGG、OPUS、MPEG、WMA、WMV,影片自動提取音軌。
- 約 98 種語言,自動檢測,基於專用 GPU 上的 Whisper 級引擎。
- 8 種匯出格式:TXT、SRT、VTT、TSV、CSV、JSON、PDF、DOCX,還支援批次打包 ZIP。
- 說話人識別為每段標註發言者,點選任意句子即可回放對應原聲。
常見問題
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.
相關工具
免費開始轉錄
免費額度:每天 2 個檔案、每月 100 分鐘,無需綁卡。
免費開始轉錄