To find your audio playback device, you must locate the sound icon in the bottom right-hand corner of your screen. Once you have located the sound icon, right-click on it and select "Playback Devices" from the drop-down menu. This will open the Sound control panel, which will list all the audio playback devices currently installed on your computer. You can select your audio playback device, configure its settings, and choose your default audio playback device.