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Convert AAC to WAV

AAC · MP3 · M4A · WAV · FLAC · OGG · OGA · WebM · OPUS · MP4 · MOV · MKV

Converting happens in your browser, so your file never leaves your device. Transcribing uploads the audio to SeaMeet.

Choose an AAC file and your browser saves it as a WAV for a tool that won't open AAC.

How it works

  1. Choose the AAC file you need as a WAV.
  2. If it's stereo, turn on Mono for a smaller file, then select Convert & download.
  3. Save the WAV, or transcribe the recording.

AAC in, WAV out, for tools that only take WAV

AAC turns up in all sorts of recordings: call recorder and dictation apps on Android, radio and stream recorders, and audio pulled out of video files. It is compact, but a lot of professional and older software can't read it. Legal and medical dictation software, forensic and speech analysis tools, lab equipment, hardware samplers and some video editors expect WAV.

Converting decodes the AAC in your browser and writes the result as a plain, uncompressed WAV on your device. The recording is not uploaded, which matters when it is a call or an interview. The WAV will be several times larger than the AAC; If a single voice was recorded in stereo, Mono halves that.

Some tools also want a particular sample rate. This page usually keeps the recording's own rate, so check the tool's requirements if it names one. For the words themselves, Transcribe this file sends the audio to SeaMeet for a transcript with speaker labels.

Questions

Do I have to upload the AAC file?

No. The AAC is converted on your own device by your browser, and the WAV is saved there. Uploading only happens if you choose Transcribe this file, which sends the audio to SeaMeet.

What is the size limit?

Nothing is uploaded, so there is no upload cap; your device's free storage counts, and the WAV needs much more of it than the AAC. A very long recording may be too long for one WAV. Transcription limits are 512 MB and 5 hours per file.

Will converting to WAV improve the sound?

No. AAC is a compressed format, and the detail it dropped can't be put back. The WAV holds the decoded sound uncompressed, as standard sixteen-bit audio, which makes it easy for other software to open, not better to listen to.

Does it work with .aac files from call recorder apps?

Yes. Raw .aac recordings from phone apps are read like any other audio. Copy the file from the phone to your computer, or choose it directly in your phone's browser, then convert. If the app saved an M4A instead, that works too.