Mono to Stereo Converter
or drop files here
Mono to Stereo
Create a two-channel WAV from a mono signal. Put identical audio in the left and right channels when a destination requires a stereo file.
- Produce two identical output channels
- Keep the recording centered
- Meet a two-channel WAV requirement
Duplicate the mono signal
A single-channel recording is copied to both sides. The listener hears a centered signal because the channels match.
Know what happens to stereo input
If the source has multiple channels, it is downmixed before duplication. Existing stereo width is not preserved by this conversion.
Use it for format compatibility
Some workflows expect two channels even for a mono voice. This tool changes that channel layout without inventing spatial detail.
Consider storage overhead
Two PCM channels require more sample data than one at the same rate and bit depth. Use mono when the destination does not require stereo.
Technical references: Web Audio API specification
Mono to Stereo FAQs
No. Both channels are identical; it does not infer room reflections or separate instruments.
Use Audio Channel Extractor when you want one original channel rather than a downmix.
Both channels contain the same mono signal, so there is no left-right difference to create width. This is useful when a destination requires a two-channel file. It is not stereo separation, surround processing or an artificial widening effect.
Mono to Stereo schedules a background render after a setting changes. The completed preview or analysis replaces the previous result automatically. Processing time depends on recording length and device performance; the status message shows when the new result is ready.