Razer Ripsaw HD Manual page 6

5. In the Properties window, select "Microphone (Razer Ripsaw HD HDMI)" and click
"OK".
6. You should now be able to record your game audio. You can confirm that OBS is
receiving audio when you see the green bars under "Audio Input Capture". To monitor or
to hear the audio through your streaming PC, open the "Advanced Audio Properties" by
clicking on the cog icon in the Mixer section.