Under Windows XP, this page lets you access the operating system's Sound Settings panel so you can configure the system's audio output. The page appears with supported graphics cards, and when an HDMI or DisplayPort display is connected and enabled.
Under Windows Vista and later, this page lets you select which digital-audio capable displays to make available for use as an audio output. You can then open the Windows Sound Settings panel to select which display to use for audio. This page appears when the driver detects an audio-capable display connector on the graphics card.
The section lists the NVIDIA GPUs in the system that have audio-capable display connections, and then lists those connections (HDMI, DisplayPort, or DVI).
For each connection, this page lists the audio-capable displays that are connected and activated. These displays are made available to the Windows Sounds Settings as follows:
HDMI displays: An HDMI display can be connected to an HDMI, DisplayPort, or DVI connector. You can use the list arrow to switch between selecting the display to appear as an audio device in the Windows Sound Settings panel or turning audio off for that display, in which case it will not appear in the Windows Sound Settings panel.
Note: Some HDMI displays are incompatible with certain audio formats. Incompatible displays may go blank or malfunction during content playback. The Turn off audio option is the default when the driver detects that an incompatible display is connected.
If you wish to use HDMI audio with an incompatible display, switch from the Turn off audio option to the listed display option and the driver will prompt you with instructions for testing HDMI audio with the display.
DisplayPort displays: A DisplayPort display can be connected to either an HDMI or a DisplayPort connector.
If connected to an HDMI connector: You can use the list arrow to switch between selecting the display to appear as an audio device in the Windows Sound Settings panel or turning audio off for that display, in which case it will not appear in the Windows Sound Settings panel.
If connected to a DisplayPort connector: Depending on the hardware support, you may have more than one audio-capable display connected through the same connector and activated.
If the graphics card supports multiple audio streams for each connector, then all the displays are listed and appear in the Windows Sound Settings panel.
If the graphics card supports only one audio stream for each connector, then you can use the list arrow to select which display to make available to the Windows Sound Settings page.
If only one display is connected, then that display is listed and appears in the Windows Sound Settings panel.
There is no option to hide audio to that connector.
Click Open Windows Sound Settings to open the Windows Sound Settings panel where you can modify the settings for playback devices.