To make C930 the primary audio device:
- Go to Control Panel > Sound. Select Logi C930 as the default communication device for playback and recording.
- Mac OS X: Go to System Preferences > Sound. Select Logi C930 as the default device for sound input and output.
- In your video/audio calling application, check the audio settings and make sure that Logi C930 is selected for both the speaker and microphone. Then, check the video settings and verify that Logi C930 is selected for the camera.