Convert WAV to M4A
100% private — runs on your device, never uploaded. Works offline once loaded.
A WAV is about 10 MB a minute, which is fine while you are editing and hopeless when you want to send it. M4A is the best place to land if the file is heading for Apple devices: AAC holds up better than MP3 at the same bitrate, iPhones and Macs treat it as native, and it is the format an iPhone ringtone has to be in. Because you are starting from uncompressed audio this is a single clean generation of loss, so a moderate bitrate goes a long way — 192 kbps for music, 96 or 128 for speech. Keep the WAV as your master and send the M4A.
Frequently asked questions
M4A or MP3?
M4A sounds better at the same bitrate and is native on Apple devices. Choose MP3 when the file is going to someone whose player you cannot predict.
How much smaller will it be?
Roughly a tenth of the WAV at 192 kbps, and around a twentieth at 96 kbps for speech.
Is anything uploaded?
No. The conversion runs on your own device.
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