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How to Enable Mono Audio in Windows 10

Mono audio is a special Accessibility feature of Windows 10 that makes sure that even if a listener has an issue with one ear or one audio channel, he or she will never miss a word or sound of audio playing in a stereo headset or multichannel speakers. For many years, the audio we listen to has come with distinct left and right channels. In this case, the listener receives a different audio stream from both channels with different sounds. Unlike stereo, monoaural audio plays the same stream via both channels. Windows 10 includes a native option to enable Mono audio output.

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While this capability has been possible in media player software for quite some time by downmixing stereo or multichannel audio to mono, it hasn't been available before Windows 10 at the system level. Enabling mono audio output is useful when you are listening to audio which has only one channel, or is encoded incorrectly or if the encoded channels are incompatible with your hardware setup, as a result of which only one headphone or speaker plays the sound.

In Windows 10, the ability to turn on mono audio is part of the Ease of Access features. It can be enabled in Settings under the appropriate category.

Enable Mono Audio in Windows 10

  1. Open Settings.
  2. Go to Ease of Access and click Audio under Hearing on the left.
  3. On the right, enable the option Turn on mono audio under Make your device easier to hear.Windows 10 Enable Mono Audio

You are done. Mono audio is now enabled.

Alternatively, you can enable or disable mono audio with a Registry tweak. This is useful when you need to customize an offline image or apply this option to a group of computers. Let's see how it can be done.

Enable mono audio output with a Registry tweak

  1. Open the Registry Editor app.
  2. Go to the following Registry key.
    HKEY_CURRENT_USER\Software\Microsoft\Multimedia\Audio

    See how to go to a Registry key with one click.

  3. On the right, create a new 32-Bit DWORD value AccessibilityMonoMixState.
    Note: Even if you are running 64-bit Windows you must still create a 32-bit DWORD value.
    Set its value data to 1 to enable the mono audio feature.Windows 10 Enable Mono Audio With Tweak
  4. A value data of 0 will disable it.Value Data Of 0

To save your time, you can download the following ready-to-use Registry files:

Download Registry Files

That's it.

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Author: Sergey Tkachenko

Sergey Tkachenko is a software developer who started Winaero back in 2011. On this blog, Sergey is writing about everything connected to Microsoft, Windows and popular software. Follow him on Telegram, Twitter, and YouTube.

3 thoughts on “How to Enable Mono Audio in Windows 10”

  1. Thank you for posting this, as a person who’s deaf to one ear this is extremely helpful for enjoying music on headphones again :)

  2. Thank you!

    I have very poor hearing in my right ear, so this makes a big difference for me. and I would never have thought to look in Ease of Access. I assumed it would be under the general sound system and was perplexed not to find it there.

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