Convert WAV to mono

Upload a WAV file and mix it down to a single mono channel.

Half the channels, half the size

For uncompressed WAV the arithmetic is exact: mono is half the size of stereo at the same sample rate and bit depth. Both channels are mixed into one, so nothing recorded only on the left or right disappears.

Standard reasons

Transcription services price and perform better on mono. Telephony systems require it. Field interviews recorded in stereo with one dead channel become clean centered mono. Speech datasets for machine learning are conventionally mono as well.

Frequently asked questions

My interview only has audio on one side. Does this fix it?

Yes. Downmixing centers the active channel, producing a normal-sounding mono file instead of one-eared playback.

Any quality downside for voice?

No practical one. Spoken word carries no meaningful stereo information, which is why voice specs default to mono.

Are recordings uploaded?

No, the downmix runs entirely on your device.