M4A to WAV

Convert M4A to WAV in three steps

1. Choose one or more M4A files, or try the included sample.
2. Convert to WAV. Keep this tab open while it works.
3. Listen to the preview and save individual files or download the batch as a ZIP.

M4A to WAV for editing

Voice Memos and other M4A recordings are compressed AAC. Some audio editors, hardware samplers, and language-learning tools only read WAV. Converting gives you 16-bit PCM audio that opens everywhere, perfect for trimming a voice note in a free editor or loading a sample into a drum machine.

Size and quality

WAV is uncompressed, so expect a file roughly ten times the size of the M4A. Converting from AAC to WAV does not restore anything lost when the M4A was made; it only unpacks the audio. Apple Lossless M4A files decode best in Safari. If you simply want a smaller shareable copy, M4A to MP3 is the better choice.

Troubleshooting and tips

Voice Memos are often mono, in which case the WAV is mono too, at roughly 5 MB per minute at 44.1 kHz. If you need to load the sound into a hardware sampler, check its sample-rate requirements, because many expect 44.1 or 48 kHz. Trim silence from the start of the memo with the silence remover before converting if you want a tight sample.

Should you choose WAV or MP3?

Choose WAV for editors, samplers, and speech tools, which prefer uncompressed audio and keep every edit clean. Choose MP3 for email, messaging, and upload forms, where size matters. A typical workflow is to convert the Voice Memo to WAV, trim and clean it in your editor, and export one final MP3 for sharing. That limits the extra lossy compression to a single step.