If you are using a Windows or Mac device it's likely that you have many microphones connected to your system to choose from. You can select the correct microphone on your device by going to the settings icon in a meeting.
VR devices like the Oculus Rift come with their own microphone/speaker override setting. These settings might cause audio and microphone issues for Arkio and other software. We recommend keeping the audio settings follow your Windows default settings to avoid problems with your microphones or audio.