SeaMeetConvert M4A to WAV
M4A · MP3 · WAV · FLAC · OGG · OGA · WebM · AAC · OPUS · MP4 · MOV · MKV
Converting happens in your browser, so your file never leaves your device. Transcribing uploads the audio to SeaMeet.
Choose an M4A, such as an iPhone voice memo, and your browser saves it as a WAV for editing.
How it works
- Choose the M4A file, for example a voice memo.
- If it's stereo, turn on Mono for a smaller file, then select Convert & download.
- Save the WAV, or transcribe the recording.
Voice Memos into an editor or sampler
An M4A from iPhone Voice Memos or an Android recorder is compact and plays on most phones, but plenty of tools want WAV instead: audio editors on older setups, hardware samplers and drum machines, speech analysis software used in linguistics and speech therapy, video tools that import WAV more reliably, and apps that only accept plain PCM audio. WAV is the simple, uncompressed format they all read.
Here the M4A is decoded in your browser and written out as a standard WAV, without the file ever being uploaded. Expect it to grow: an M4A is compressed and a WAV isn't, so the same memo takes several times the space. If the memo was recorded in stereo, Mono halves the WAV. WAV doesn't make the memo sound better; it stores it in a form that editing tools open directly.
Once it is in your editor, you might trim a sample, clean up a recorded idea or line it up with a video. If what you need is the words, Transcribe this file sends the audio to SeaMeet for a transcript with speaker labels and a summary.
Questions
Is my M4A uploaded to make the WAV?
No. Your browser converts the M4A on your device and saves the WAV there. The file is uploaded only if you choose Transcribe this file, which sends the audio to SeaMeet.
Is there a size limit?
Nothing is uploaded, so only your device limits it: the WAV is much larger than the M4A and needs free storage, and a very long recording may be too long for one WAV. Transcription has its own limits: 512 MB and 5 hours per file.
Will converting to WAV improve the sound?
No. WAV stores sound uncompressed, as standard sixteen-bit audio, but it can't add back detail that the M4A already left out when it was recorded. What you gain is a format that editors and samplers open directly, not better sound.
Why is the WAV so much bigger?
An M4A is compressed to save space, and a WAV holds every sample as it is. A WAV can take around ten times the space of a typical voice memo, or more. If the memo was recorded in stereo, turning on Mono halves the WAV.