Remote Desktop Audio Redirection Regedit Path

Configuring Remote Desktop audio playback redirection allows users to stream audio from a remote Windows session to their local machine. When Group Policy is not available or manual overrides are required, these audio redirection rules can be directly configured in the Windows Registry (Regedit) by modifying specific values on the host machine.

Primary Registry Locations for Audio Redirection

Remote Desktop audio playback behavior is controlled primarily through two locations in the Windows Registry:

1. Group Policy Override Key

This key enforces system-wide policies regarding whether audio playback redirection is permitted on the host.

• Registry Path: HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services
• Value Name: fNoAudioPlayback
• Value Type: REG_DWORD
• Values:
  • 0 = Allow audio playback redirection (enables sound playback on the client)
  • 1 = Do not allow audio playback redirection (disables remote sound)

2. Terminal Server WinStations Key

This key configures the client audio mapping (CAM) rule directly on the RDP-Tcp connection listener.

• Registry Path: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp
• Value Name: fDisableCam
• Value Type: REG_DWORD
• Values:
  • 0 = Audio mapping enabled (audio redirection is active)
  • 1 = Audio mapping disabled (audio redirection is blocked)

Step-by-Step Configuration

1. Press Windows Key + R, type regedit, and press Enter to open the Registry Editor.
2. Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp.
3. Locate fDisableCam in the right pane. If it does not exist, right-click, select New > DWORD (32-bit) Value, and name it fDisableCam.
4. Double-click fDisableCam and set its Value data to 0 to enable audio redirection.
5. Next, navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services.
6. Locate fNoAudioPlayback (or create it as a DWORD (32-bit) Value if missing) and set its Value data to 0.
7. Ensure the Windows Audio service (Audiosrv) is set to start automatically on the host machine by opening services.msc and setting its startup type to Automatic.
8. Restart the remote computer or restart the Remote Desktop Services service for the changes to take effect.