Troubleshooting Communicator 2007 Deployment
Microsoft Office Communications Server 2007 and Microsoft Office Communications Server 2007 R2 will reach end of support on January 9, 2018. To stay supported, you will need to upgrade. For more information, see Resources to help you upgrade your Office 2007 servers and clients.
Capturing Audio Signals for Debugging
When you encounter sustained and reproducible audio quality problems, you can capture audio traffic signals, which a support team can use to diagnose the problem. These signals are drawn from the original audio signal that the user either sends or receives. The signal is captured by sub-sampling the speech waveform by a factor of 40, meaning that only 1 out of 40 consecutive samples is retained in the audio records. In addition, the 16-bit samples are quantized to 8-bit samples. No other type of data processing, data encryption, or data scrambling is applied.
This feature is typically used for a peer-to-peer test call and is turned off once testing is complete. Remember to comply with legal requirements related to privacy and to sampling conversations.
Note
In Windows Vista®, the user account that uses this audio capturing feature must belong to the local Performance Log Users group.
This feature is also available in Live Meeting. See Microsoft Office Live Meeting Service Administrators Guide.
Joining the local Performance Log Users group
To join the local Performance Log Users group
Click the Start button, right-click Computer, and then click Manage.
Expand System Tools, expand Local Users and Groups, and then click Groups.
Right-click Performance Log Users, click Add to Group, and then click Add.
Type your domain account, click Check Names, and then click OK.
Restart Communicator.
Enabling the audio capture feature in Communicator
To enable the audio capture feature in Communicator
On the Office Communicator Title bar, click Menu.
On the Tools menu, click Options.
On the General tab, under Logging, select Turn on logging in Communicator, and then click OK.
Click Start, and then click Run.
Type REGEDIT, and then press ENTER to start Registry Editor.
Go to HKEY_CURRENT_USER\Software\Microsoft\Tracing\WPPMedia\DebugUI.
Right-click TraceLevelThreshold, and then click Modify.
Select Decimal, enter a value of 5, and then click OK.
Right-click WPP_FLAG_S_DEBUGUI_AEC_PCM, and then click Modify.
Right-click the property, and then select Modify.
Select Decimal, enter a value of 1, and then click OK.
Exit Registry Editor.
Exit Microsoft Office Communicator, and then restart it.
Data is captured in a circular buffer, which is 20 MB by default. This is designed to limit the size of the file that will be saved in the file system. If the capture exceeds the size of the buffer, the old data will be overwritten starting from the beginning of the buffer. At 20 MB, the maximum amount of audio data saved in the file is about two minutes—about 1 MB for every 6 seconds of audio.
By default, the audio samples are written to the following file:
C:\Users\username\Tracing\WPPMedia\Communicator_rtmdebug.etl
The path and filename are specified in the following registry properties:
HKEY_CURRENT_USER\Software\Microsoft\Tracing\WppMedia\Debug\WPPFilePath
HKEY_CURRENT_USER\Software\Microsoft\Tracing\WppMedia\Debug\WPPFileName
When the test is complete, disable the audio capture and send your audio files to Microsoft.
Disabling the audio capture feature in Communicator
To disable the audio capture feature in Communicator
On the Office Communicator Title bar, click Menu.
On the Tools menu, click Options.
On the General tab, under Logging, select Turn on logging in Communicator, and then click OK.
Click Start, and then click Run.
Type REGEDIT, and then press ENTER to start Registry Editor.
Go to HKEY_CURRENT_USER\Software\Microsoft\Tracing\WPPMedia\DebugUI
Right-click WPP_FLAG_S_DEBUGUI_AEC_PCM, and then click Modify.
Select Decimal, enter a value of 0, and then click OK.