Secure Global Desktop 4.31 Administration Guide > Applications, documents and hosts > Enabling sound in Windows applications

Enabling sound in Windows applications

Secure Global Desktop Administrators can enable sound in Windows applications accessed using Secure Global Desktop (SGD). To be able to hear sound in Windows applications, you may have to configure the client device, the SGD Windows audio service, and the Windows application server. How you do this is described in the following sections.

Configuring the client device

To be able to hear sound in an Windows application, the client device must be capable of playing sound.

Users with Solaris Operating System (Solaris OS) or Linux client devices must also have read and write access to the following audio devices:

• The /dev/audio device on Solaris Operating System (Solaris OS) platforms.
• The /dev/dsp device on Linux platforms.

When running a Windows application through SGD, users must use a Secure Global Desktop client that can play sound. The Sun Secure Global Desktop Client on all platforms can play sound. See the Secure Global Desktop Release Notes for details of which classic clients can play sound.

Audio mixing on the client device is supported. On Solaris OS workstations, Microsoft Windows and Mac OS X client devices, the client hardware performs the mixing. On Linux and Sun Ray client devices, the Enlightened Sound Daemon (ESD or EsounD) is required to perform mixing.

Configuring the SGD Windows audio service

To be able to hear sound in a Windows application, the SGD Windows audio service must be enabled in the array. The Windows audio service is disabled by default.

You enable the Windows audio service as follows:

• On the Array properties panel in Array Manager, check the Enable Windows audio service box.
• On the command line, run the tarantella config edit --array-audio 1 command.

Note The audio service only takes effect for new webtop sessions. Users must log out of Secure Global Desktop and log back in again to enable sound in their current Windows Terminal Server sessions.

You can also set the audio quality. The default is Medium Quality Audio (sample rate 22.05kHz), which should be sufficient in most cases.

Configuring the Windows application server

You can only play sound in Windows 2003 Terminal Services sessions.

To enable sound in Windows applications, you must configure audio redirection on the Windows 2003 Server.

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