Convert M4A to WAV
100% private — runs on your device, never uploaded. Works offline once loaded.
Audio software asks for WAV because there is nothing to decode: every sample sits in the file, no codec support is required, and nothing surprising happens halfway through a long recording. That is why editing suites, transcription engines, forced aligners and game engines all list it first. An M4A — which is what an iPhone voice memo and most Apple recordings are — has to be decoded to get there, and the result is roughly ten times larger while sounding exactly the same. It does not recover anything the original compression discarded; what it does is stop any further loss, which is the point when the file is about to be edited rather than listened to.
Frequently asked questions
Will the WAV sound better than the M4A?
No — it holds exactly the same audio, uncompressed. It prevents further loss during editing rather than restoring anything.
Which sample rate should I choose?
44.1 kHz for music and general use, or 48 kHz if the audio will sit alongside video, which works at 48.
Is my recording uploaded?
No, which matters for interviews and voice memos. It is converted on your device.
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