4 February 2026 | 5 min read
How to convert WAV to MP3 without wrecking your audio
MP3 is the format everyone can open. Here is how to get there from a WAV master without turning a clean recording into something thin and swirly.
A WAV file stores raw uncompressed samples. An MP3 throws part of that data away to make the file roughly ten times smaller. That trade is fine for review copies, client links and podcasts, and it is a bad idea for anything that will be edited, mixed or archived.
Pick a bitrate, not a preset
Bitrate decides how much of the original signal survives. For dialogue and music that people will actually listen to, 320 kbps constant bitrate is the safe answer. 192 kbps is acceptable for rough cuts. Below 128 kbps, cymbals smear and sibilance turns into a metallic whistle.
- 320 kbps: distribution copies, music, anything a client will judge.
- 192 kbps: internal review, dailies, quick email attachments.
- 128 kbps and below: voice memos only, never deliverables.
MP3 cannot do everything WAV does
The MPEG standard only allows a handful of sample rates: 48, 44.1, 32, 24, 22.05 and 16 kHz. A 96 kHz WAV has to be resampled before it can become an MP3. MP3 is also limited to two channels, so a six channel poly file must be downmixed first.
Good tools do this for you and tell you about it. Bad tools do it silently, which is how a 5.1 mix ends up as a mono-sounding mess where the dialogue is buried under the surrounds.
Keep the master
Never convert your only copy. Export the MP3 next to the WAV and archive the WAV. Re-encoding an MP3 back to WAV does not restore anything; the discarded data is gone, and you simply get a large file that still sounds like an MP3.
Doing it in the browser
The converter here decodes your WAV locally, resamples to a valid MPEG rate when needed, downmixes to stereo when the source has more channels, and encodes at 320 kbps. Nothing is uploaded, which matters when the recording is under NDA.