# Stereo to Mono Converter

Convert a stereo audio file to mono

> Canonical page: https://elysiatools.com/en/tools/stereo-to-mono

- **Category:** Media

- **Keywords:** audio, stereo, mono, channel, convert, downmix, mix

## Overview

Converts stereo audio to mono by mixing both channels together. Useful for reducing file size, compatibility with mono-only systems, or creating centered audio mixes. The resulting mono file combines the left and right channels equally.

## Inputs

- **Audio File** (file): Select a stereo audio file
- **Output Format** (select)

## When to use

- When you need to reduce the file size of audio files for storage or transmission.
- When preparing audio for devices or platforms that only support mono playback.
- When you want a centered audio mix for voice-overs or mono-centric applications.

## How it works

- Upload your stereo audio file, such as MP3, WAV, or AAC, up to 200 MB.
- Select the desired output format from options like MP3, AAC, M4A, OGG, Opus, FLAC, or WAV.
- The tool mixes the left and right channels to produce a single mono track.
- Download the converted mono audio file in your chosen format.

## Use cases

- Converting podcast episodes for distribution on mono-only audio platforms.
- Reducing storage space for audio archives by converting stereo recordings to mono.
- Creating voice-over tracks for videos where stereo separation is unnecessary.

## Frequently asked questions

### What audio formats can I upload?

You can upload common audio formats like MP3, WAV, AAC, and others supported by the file input.

### Will converting to mono affect audio quality?

The conversion mixes channels without altering the core audio, but mono output may lack stereo spatial effects.

### Can I choose the output format?

Yes, you can select from MP3, AAC, M4A, OGG, Opus, FLAC, or WAV as the output format.

### Is there a file size limit?

Yes, the maximum file size is 200 MB per upload.

### How does the channel mixing work?

The tool averages the left and right channels to create a single mono channel, combining audio equally.

## Related tools

- [AAC to M4A Converter](https://elysiatools.com/en/tools/aac-to-m4a): Convert AAC audio files to M4A (MPEG-4 Audio) format with quality and channel controls
- [AAC to MP3 Converter](https://elysiatools.com/en/tools/aac-to-mp3): Convert AAC audio to MP3 with controllable bitrate, resampling, and channel selection
- [AAC to OGG Converter](https://elysiatools.com/en/tools/aac-to-ogg): Convert AAC audio files to OGG Vorbis format with quality and channel controls
- [AMR to MP3 Converter](https://elysiatools.com/en/tools/amr-to-mp3): Convert AMR (Adaptive Multi-Rate) audio files to MP3 format
- [Audio Add Chapters](https://elysiatools.com/en/tools/audio-add-chapters): Add chapters to an audio file from a label/chapters file
- [Audio Add Silence](https://elysiatools.com/en/tools/audio-add-silence): Add a specified duration of silence to the start or end of an audio file
- [Audio Binauralizer](https://elysiatools.com/en/tools/audio-binauralizer): Convert stereo to pseudo-3D or HRTF binaural
- [Extract Center Channel](https://elysiatools.com/en/tools/audio-center-channel-extract): Extract the center channel from a surround audio file or video audio track

## Samples

- [Copyright-Free FLAC Audio Samples](https://elysiatools.com/en/samples/flac-samples): Lossless FLAC audio samples for testing and development, mirrored from MP3 set with nature sounds and meditation music
- [Copyright-Free MP3 Audio Samples](https://elysiatools.com/en/samples/mp3-samples): Collection of royalty-free audio samples for testing and development purposes including nature sounds, meditation music, and ambient audio
- [Copyright-Free WAV Audio Samples](https://elysiatools.com/en/samples/wav-samples): Uncompressed PCM WAV audio samples for testing and development, mirrored from MP3 set with nature sounds and meditation music
- [Copyright-Free Raw PCM Audio Samples](https://elysiatools.com/en/samples/pcm-samples): Raw PCM s16le audio samples featuring nature ambience and relaxing music for waveform, playback, and conversion workflows

## Related content

- [Audio Channel Routing and Delivery Verification](https://elysiatools.com/en/hubs/audio-channel-routing): Route, split, join, and convert mono or stereo audio while preserving left/right intent and checking the final file before delivery.