Convert AAC to mono

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

Single-channel AAC streams

Speech pipelines, telephony bridges, and some broadcast specs want one channel. This tool downmixes your AAC stream to mono and re-encodes it, keeping the raw ADTS framing technical consumers expect.

Frequently asked questions

Does downmixing affect intelligibility?

No, blending channels preserves all speech content; talk content is effectively mono to begin with.

Mono first or compress first?

Mono first. Removing a channel is free quality-wise for speech, and the subsequent bitrate then stretches further.

Are streams uploaded?

No, everything runs locally in the browser.

Related tools