The ATI Function Driver for High Definition Audio ATI AA01 enables Windows to communicate with the audio function built into compatible ATI graphics hardware. It supports digital sound through a graphics card’s HDMI connection, allowing a connected monitor, television, or receiver to play audio when the hardware and driver package support it.

Key Features

• Audio over HDMI: Provides the driver component needed to send sound alongside video through a compatible ATI graphics output.
• Windows playback integration: Makes the graphics adapter’s audio function available to Windows so you can select a connected display or receiver as a playback device.
• Device identification: Helps Windows recognize the ATI high-definition audio component rather than leaving it listed as an unknown or improperly configured device.
• Graphics audio support: Handles audio associated with the GPU’s display connection. It does not replace the separate driver used for your computer’s onboard analog audio jacks.

How to Install

1. Confirm the hardware and Windows version. Open Device Manager and locate the ATI audio component, typically under “Sound, video and game controllers” or “Other devices.” Check its hardware IDs under Properties > Details, then confirm whether your computer runs Windows 11, 10, 8, or 7 and which system architecture it uses.

1. Choose a matching driver package. Download a package that explicitly supports your hardware ID and Windows version. Support can vary for older ATI hardware, so do not assume that a driver intended for Windows 7 also supports Windows 10 or Windows 11.

1. Extract and install the driver. If the download includes an installer, run it and follow the prompts. For a package containing driver files only, right-click the device in Device Manager, choose “Update driver,” then browse to the extracted folder.

1. Restart and check device status. Restart your computer if requested. Return to Device Manager and confirm that the ATI Function Driver for High Definition Audio ATI AA01 appears without a warning icon.

1. Select and test the audio output. Connect an audio-capable display or receiver through HDMI, open Windows sound settings, and select it as the playback output. If you hear no sound, check the display’s volume, input selection, and cable connection before reinstalling the driver.

Common Issues and Fixes

• Install fails or rolls back: Run the ATI/AMD package as administrator and match it to your exact GPU/APU and Windows version. If setup fails, uninstall the old ATI HDMI audio entry in Device Manager, check “Delete the driver software,” reboot, then reinstall. Code 10/28 often means the GPU/HDMI driver must be installed first.
• Device not detected: Confirm the HDMI/DisplayPort monitor has audio and is set as the playback device. Reseat the cable, update the GPU driver, then use Device Manager > Scan for hardware changes. Check BIOS/onboard audio isn’t disabling HDMI audio.
• Version conflicts: Windows may load Microsoft High Definition Audio or Realtek instead. Uninstall conflicting audio drivers, reboot, and in Device Manager choose Update driver > Browse > Let me pick the ATI AA01 driver.