Streaming Audio Performance

we have windows 2008 r2 vdi cluster. cluster servers hp proliant dl 980 g7 512gb of memory. vms windows 7 entprise configured 3gb of memory. the storage lefthand iscsi storage. connect these vms using hp t5740e thin clients. there 120 vms running in cluster. there around 40-50 vms in use concurrently at given time. have real poor internet audio quality when connecting via thin client. if rdp same vm desktop system audio quality better. must difference in audio hardware between desktop , server. don't if adding audio card server supported or make difference. adding audio card work or there other tweaking can done.

hi,

you can try change audio quality modes see option best. more details information, please refer link below.
http://blogs.msdn.com/b/rds/archive/2009/05/11/what-s-new-in-remote-audio-for-windows-7.aspx

remote audio playback has tried automatically adjust bandwidth usage based on current network conditions. allows audio work pretty on 56k modem through 10 gigabit ethernet connection, flexibility comes @ cost. adjusting bandwidth on fly requires server delay audio little longer processing before sending client, can cause audio out of sync images on screen.

sometimes, know on network that’s fast enough handle best quality audio always. these cases, can change audio quality mode. tells server assume network can handle best quality audio, , send it’s ready. since server processing doesn’t delay audio, synchronization between audio , video improved, , audio sounds better too.

enabling feature requires changes both server- , client-side configuration. on server, easiest way enable feature group policy editor. go computer configuration:administrative templates:windows components: remote desktop session host:device , resource redirection. policy in question “limit audio playback quality.” set “enabled,” , set “audio quality” option either medium or high.

on client side, need add audioqualitymode setting rdp file. 3 possibilities setting are:
• audioqualitymode:i:0 -> dynamic quality
• audioqualitymode:i:1 -> medium quality
• audioqualitymode:i:2 -> high quality

dynamic quality uses old behavior , attempts provide best quality available bandwidth. medium uses single audio format, allows reasonable quality, low latency, , doesn’t use bandwidth. on other hand, high quality uses uncompressed audio best sound quality while having low latency.

regards,
dollar wang
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Windows Server  >  Remote Desktop Services (Terminal Services)