Channel Splitter

Split a stereo audio file into separate left and right mono tracks, preview each one, and download them as WAV or MP3. Free, with no upload.

About the Channel Splitter

The channel splitter saves each channel of a file as its own mono track. Drop in a stereo file and you get a Left file and a Right file; a 5.1 surround file gives six. Each channel shows its peak level and can be played on its own first, so you can tell which side holds what before you download. The samples are copied straight across with no mixing, filtering, or level change.

It is the tool for recordings where each channel carries something different: a two-person interview with one microphone per side, a dual-mono field recording, or a camera that put the lavalier on the left and the built-in mic on the right. It will not pull a singer out of a finished song, because a normal stereo mix has the vocal on both sides — that takes the vocal remover or the stem splitter. To fold both sides into one file instead, use stereo to mono. Your audio never leaves your device, and mono vs stereo audio has the background.

Frequently Asked Questions

What do I get when I split a stereo file?

Two mono files, one holding exactly what was in the left channel and one holding the right. They are the same length as the original and nothing is mixed or processed. Each file plays through both speakers because it is mono.

Can this separate vocals from the music?

No. In a finished song the vocal is normally present in both channels, so the left and right files will each still contain the whole mix. Splitting channels only helps when the two sides were recorded separately. To isolate a vocal or instrument, use the vocal remover or stem splitter.

Does it work with surround or multichannel files?

Yes, if your browser can decode the file. A 5.1 file is split into six mono tracks labelled front left, front right, centre, LFE, surround left, and surround right. Other channel counts are numbered in the order they are stored.

Why do the left and right files sound exactly the same?

Because the file carries the same audio on both channels. Plenty of recordings are mono at heart but saved in stereo format, especially those made with a single microphone, such as many podcasts and voice recordings, along with some older or converted tracks. Splitting a file like that gives two copies of the same thing, and matching peak readings on both channels are a quick hint that this has happened. Either file on its own is a complete mono version of the recording.

What if my recording only plays in one ear?

That usually means the sound was recorded onto one channel only, for example from a single microphone plugged into one input of a stereo recorder or camera. Load the file and check the peak reading under each channel: Silent means that side contains no signal at all, and a much lower peak means it holds very little. Export the channel that has the sound and you get a mono file that plays in both ears.