Symptoms
Assume that you sign in Microsoft Skype for Business 2016 by using a Lenovo Yoga920 laptop and enable the Automatic Gain Control feature through Options > Audio Device > Automatically adjust microphone volume on calls. When you join a Skype call, you may find that the microphone volume is still too low.
Resolution
To fix this issue, install the June 5, 2018, update (KB4022155) for Skype for Business 2016.
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