Event ID 2009 — Bi-Directional Audio Redirection Configuration

Applies To: Windows Server 2008 R2

Remote Desktop Connection (RDC) 7.0 and Windows Server 2008 R2 support bi-directional audio redirection by efficiently transporting audio-based multimedia in a compressed format within the RDP protocol. If the client supports bi-directional audio redirection, it will receive the original compressed audio stream from the server and decode it on the client computer.

Event Details

Resolve

Enable audio recording redirection

To resolve this issue, you must enable audio recording redirection by using either Remote Desktop Session Host Configuration or Group Policy.

Enable audio and video playback redirection by using Remote Deskop Session Host Configuration

To perform this procedure, you must have membership in the local Administrators group, or you must have been delegated the appropriate authority.

To enable audio and video playback redirection by using Remote Desktop Session Host Configuration:

1. On the RD Session Host server, click Start, point to Administrative Tools, point to Remote Desktop Services, and then click Remote Desktop Session Host Configuration.
2. Under the Connections heading, right-click RDP-Tcp, and then click Properties.
3. Click the Client Settings tab.
4. Clear the Audio recording check box.

Change the settings in Group Policy

If the redirection of supported Plug and Play devices has been disabled by using Group Policy, change the Group Policy setting that is being applied to the RD Session Host server so that supported Plug and Play devices can be redirected.

Redirection of supported Plug and Play devices can be controlled by the following Group Policy settings:

• The **Allow audio recording redirection **Group Policy setting. This Group Policy setting is located in Computer Configuration\Administrative Templates\Windows Components\Remote Desktop Services\Remote Desktop Session Host\Device and Resource Redirection. Note that the Group Policy setting will take precedence over the setting configured in Remote Desktop Session Host Configuration.
• The Group Policy settings located in Computer Configuration\Administrative Templates\System\Device Installation\Device Installation Restrictions.

To configure the Group Policy setting in Active Directory Domain Services (AD DS), use the Group Policy Management Console (GPMC). To configure the Group Policy setting locally on an RD Session Host server, use the Local Group Policy Editor. For more information about configuring Group Policy settings, see either the Local Group Policy Editor Help (https://go.microsoft.com/fwlink/?LinkId=143317) or the GPMC Help (https://go.microsoft.com/fwlink/?LinkId=143867) in the Windows Server 2008 R2 Technical Library.

Verify

To verify that bi-directional audio redirection is configured correctly, do the following:

• Verify that the Remote Desktop Session Host role service is installed.
• Verify that the Windows Audio service is started.
• Verify that the Desktop Experience feature is installed on the RD Session Host server.
• Verify that the client settings are configured by using Remote Desktop Session Host Configuration.

To perform these procedures, you must have membership in the local Administrators group, or you must have been delegated the appropriate authority.

Verify that the Remote Desktop Session Host role service is installed

The Remote Desktop Session Host role service must be installed to use bi-directional audio redirection.

To verify that the Remote Desktop Session Host role service is installed:

1. On the RD Session Host server, click Start, point to Administrative Tools, and then click Server Manager.

2. Expand Roles, and then click Remote Desktop Services.

   Note: If  Remote Desktop Services is not available under the Roles heading, the Remote Desktop Session Host role service is not installed.

3. Under the Role Services heading, verify that Installed is shown in the Status column next to Remote Desktop Session Host.

Verify that the Windows Audio service is started

To use bi-directional audio redirection, the Windows Audio service must be started.

To verify that the Windows Audio service is started:

1. On the RD Session Host server, click Start, point to Administrative Tools, and then click Services.
2. Right-click Windows Audio, and then click Properties.
3. In the Service status box, ensure that Started is shown.
4. If you want this service to start each time the RD Session Host server is started, in the Startup type box, click Automatic.
5. Click OK.

Verify that the Desktop Experience feature is installed on the RD Session Host server

To use bi-directional audio redirection, the Desktop Experience feature must be installed on the RD Session Host server.

To verify that the Desktop Experience feature is installed on the RD Session Host server:

1. On the RD Session Host server, click Start, point to Administrative Tools, and then click Server Manager.
2. Expand Features, and verify that Desktop Experience is displayed.

Verify that the client settings are configured by using Remote Desktop Session Host Configuration

To use bi-directional audio redirection, the client settings must be configured by using Remote Desktop Session Host Configuration.

To verify that the client settings are configured by using Remote Desktop Session Host Configuration:

1. On the RD Session Host server, click Start, point to Administrative Tools, point to Remote Desktop Services, and then click Remote Desktop Session Host Configuration.
2. Under the Connections heading, right-click RDP-Tcp, and then click Properties.
3. Click the Client Settings tab.
4. Verify that the Audio and video playback and Audio recording check boxes are selected.

Related Management Information

Bi-Directional Audio Redirection Configuration

Remote Desktop Services