Microsoft KB Archive/917185

= The technical specifications for the audio features of a chat in Groove =

Article ID: 917185

Article Last Modified on 3/28/2007

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APPLIES TO


 * Microsoft Office Groove 2007
 * Groove Virtual Office 3.1 File Sharing Edition
 * Groove Virtual Office 3.1 Professional Edition
 * Groove Virtual Office 3.1 Project Edition
 * Groove Virtual Office 3.1 Trial Edition
 * Groove Virtual Office 3.0 File Sharing Edition
 * Groove Virtual Office 3.0 Professional Edition
 * Groove Virtual Office 3.0 Project Edition
 * Groove Virtual Office 3.0 Trial Edition
 * Groove Workspace 2.5 Preview Edition
 * Groove Workspace 2.5 Professional Edition
 * Groove Workspace 2.5 Project Edition
 * Groove Workspace 2.5 Standard Edition

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INTRODUCTION
This article describes the technical specifications for the audio features of a chat in Microsoft Office Groove 2007 and in earlier versions of Groove.



MORE INFORMATION
The audio features of a chat in Groove use the following additional components:
 * For recording: Microsoft Waveform Input API
 * For compression: Digital Signal Processor (DSP) Group TrueSpeech codec or the Microsoft GSM 6.10
 * For playback: Microsoft DirectSound

The compressed audio packets are transmitted by using standard Groove communications. The transmission uses a packet duration of approximately 125 milliseconds.

On the receiving side, Groove 2007 and Groove Virtual Office 3.x use 1-second buffering, and Groove Workspace 2.x uses 500-millisecond buffering. Groove does not use buffering on the sending side. However, buffering may be added by the various communication layers. Additionally, buffering may be affected by firewalls and by other factors.

To calibrate sound quality, run the Audio Tuning Wizard from the menu in a chat.

The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.

Additional query words: TCN-00894 Groove2007

Keywords: kbexpertiseinter kbtshoot KB917185

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