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Convert OPUS to WAV

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

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

Choose an OPUS voice note and your browser saves it as a WAV you can open in any editor.

How it works

  1. Choose the OPUS file, for example a saved voice message.
  2. If it's stereo, turn on Mono for a smaller file, then select Convert & download.
  3. Save the WAV, or transcribe the message.

Voice notes into an audio editor

Voice messages saved as .opus, from WhatsApp on Android, from recorder apps or from call tools, are made for listening in the app, not for editing. Many video editors, podcast tools and samplers don't import OPUS at all. That gets in the way when you want to trim a message, use it in a video, a tribute or a podcast, or clean up the background noise.

A WAV opens in every editor. This page decodes the OPUS on your own phone or computer and writes it out uncompressed, without uploading a personal message to do it. Voice notes are usually mono already, so the WAV keeps a single channel; Mono only matters for a stereo OPUS file, where it halves the WAV.

In the editor you can cut out a pause, raise the volume, join several messages into one or add music under a message for a birthday video. If the point is to keep what was said, Transcribe this file sends the audio to SeaMeet and returns the text.

Questions

Is the OPUS voice note uploaded?

No. Your browser turns the OPUS file into a WAV on the device you are using, so the message is never sent anywhere to convert. If you pick Transcribe this file, the audio is uploaded to SeaMeet for the transcript.

Is there a limit on length?

Not for a voice note: nothing is uploaded, and your device only needs space for the WAV, which is far bigger than the tiny OPUS file. Only a recording of many hours would be too long for one WAV. Transcription is limited to 512 MB and 5 hours per file, well beyond a typical voice note.

Will converting to WAV improve the sound?

No. OPUS keeps voice notes tiny by leaving out detail, and converting can't put it back. The WAV stores the message uncompressed as standard sixteen-bit audio, so editors can work with it, but a muffled voice note stays muffled.

Can I join several voice notes into one file?

Not on this page, which converts one file at a time. Convert each voice note to WAV, then line them up in an audio editor and export the result. WAV suits that, because editing it doesn't add another layer of compression.