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The user's microphone must properly connected and delivering an active audio signal

Cause

The application was unable to detect an active audio signal coming from the selected microphone.  This can happen if the mic isn't connected properly to your computer, the mic is muted, or if the mic has noise gating applied that is making the idle input stream totally silent.

Remedy

The Health Check runs immediately upon entering the recording page and is looking to prevent recording under conditions that can result in lost audio. So, it's important that everyone enters with their mic connected, turned on, and not muted.

Higher quality microphones with noise gating can appear to be silent even when properly connected.  Tapping on the mic during the health check process will remedy this.

NOTICE: If the participant experiencing this problem is using Firefox, please have them switch to using Chrome.  There seems to be an outstanding bug in the Firefox browser that is causing this issue while Chrome should work fine.

Check to make sure that the microphone or audio interface is properly turned on and not muted at the time you enter the recording page. In the case that you are using a condenser microphone that requires 48volt phantom power, ensure that your audio interface has this capability and that phantom power is enabled on the device.

It can sometimes help to make sure that the desired audio device is selected as the default device input and output device in the operating system preferences.  Then in Zencastr's audio settings (gear icon in the top right of the recording page) simply select the 'Default' setting for input and output.  Then completely close and re-open the browser.  This will cause Zencastr to use whatever is selected in the operating system preference and can sometime work around any device selection troubles.

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