Free Online Downmixer

Reduce channels: stereo to mono, or upmix mono to stereo.

Mac, Windows ve mobilde ücretsiz kullanınKurulum gerekmezTLS encryption keeps your files safe

What is this tool

AudioToolKit downmixes audio online for free, in your browser. Convert a stereo file to mono by averaging both channels into one — which also reveals phase problems as lost content — or upmix a mono track to stereo by duplicating it to both channels. The result downloads as MP3 or WAV, and the file is processed entirely on your device, never uploaded.

Drag and drop your files here

MP3, WAV, M4A, AAC, OGG, FLAC, AIFF, AIF, OPUS, WMA, AMR — up to 25 MB per file

Target channels

Output format

Çıktı

Mono or stereo MP3/WAV

Kabul edilen formatlar

.mp3, .wav, .m4a, .aac, .ogg, .flac, .aiff, .aif, .opus, .wma, .amr

Neden bu ücretsiz aracı kullanmalısınız

Radio, phones and old hardware often play mono. Downmixing to a single channel checks how a mix translates, and upmixing a mono file gives it a stereo bed for modern players.

Ücretsiz downmixer nasıl çalışır?

1
Upload the file.
2
Pick mono or stereo as the target.
3
Press Process and download.

Sıkça sorulan sorular

How does stereo to mono work?

Both channels are averaged into one, which also reveals phase problems as lost content.

Can I upmix mono to stereo?

Yes — the mono signal is duplicated to both channels. It is a real stereo file, not a widened one.

Local processing?

Yes, in your browser.

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