Ukulele Sound Recognition Issues

OKUkulele works with any real 6-string and 4-string instruments. You can use acoustic, electric, electroacoustic ukulele, and smart ukulele in standard tuning.

If you are having problems with recognition, check the following tips to troubleshoot.  They are listed in order. Start with the first one and if it doesn’t help, continue to the next one.

  1. Make sure you tune your ukulele with the in-app tuner. If you tune your ukulele with a different tuner, you may have recognition issues in OKUkulele.
  2. Check that the app volume or background noise is not too loud. Try connecting wired headphones without a built in microphone, to your device.
  3. Please make sure you have allowed OKUkulele to access your device microphone:


    To enable microphone on iOS (iPad, iPhone, iPod) go to SettingsPrivacyMicrophone on your device.


    If OKUkulele does NOT have access to the microphone when you first launched the app, you see a pop up to "Allow OKUkulele to record audio". You can enable the microphone access by tapping "ALLOW". You can also go to the app properties on your device, and enable microphone access via SettingsAppsOKUkulelePermissionsMicrophone.

  4. For Android devices, try re-calibrating audio via "Avatar" → Settings → Advanced Settings → Audio Setup. Ensure your device microphone delay time less than 1000 ms, if NOT, please check this video for the detailed solution:

Note: If you continue to have recognition issues, feel free to contact our support team at okukulele01(at)

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