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09.24.2008 at 03:44PM PDT, ID: 23760755
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8.5

Audio stutter in terminal server session

Asked by Jackie_Fynboh in Microsoft Server, Remote Desktop/Terminal Services

Tags: , , ,

I have Windows Server 2003 in terminal server mode.  Remote clients connect via a dedicated point-to-point T1.  They open Outlook (running from an Exchange server next to the TS server) and get emails from the phone system with voice mails attached.  The files end in .WAV but are small (250-400 KB).  When they double click, it opens Windows media player and plays the file.  But the audio is continually pausing and/or breaking up.  As a test, I tried to stream a Internet radio station through media player at 48kbps - a little stutter, but not bad at all.  So, I took a .WAV file and converted it to MP3 128kbps file (file size went from 310KB to 620KB) and hardly any stutter at all.  The size of the wave file and quality of the sound would seem to indicate that these are pretty low bit rate files.

I've looked, and dug and searched.  I don't see any way to adjust the bandwidth allocation or force the session to use less or more bandwidth for the audio.  It appears to be dynamically allocated by some Microsoft function that doesn't work right with the particular wave files.  I don't believe I can change the format that the phone system sends.  I am pretty sure that the file is CCITT u-Law compression - which I know very little about.

Does anyone know a way to resolve this?  Or a media player that works in Terminal Server that may play the file more effecent (I'm thinking that the problem is more in the RDP Audio Driver then media player)?  I tried VLC as a test (assuming it was safe to install on a terminal server) and the problem actually got much worse.

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[+][-]09.25.2008 at 10:23AM PDT, ID: 22571776

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[+][-]09.25.2008 at 11:00AM PDT, ID: 22572165

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[+][-]09.25.2008 at 11:43AM PDT, ID: 22572562

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About this solution

Zones: Microsoft Server, Remote Desktop/Terminal Services
Tags: Microsoft, Terminal Server, 2003, Audio
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Solution Provided By: TechSoEasy
Participating Experts: 1
Solution Grade: A
 
 
[+][-]09.25.2008 at 01:35PM PDT, ID: 22573611

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[+][-]09.26.2008 at 03:43AM PDT, ID: 22578139

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