choppy sound playing videos within RDP session (not only Flash, also HTML5)
Reported by madcow...@gmail.com, Oct 24 2013
UserAgent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/30.0.1599.66 Safari/537.36 Example URL: http://www.youtube.com/watch?v=trj1pikOS5Y Steps to reproduce the problem: 1. logon through RDP to a Windwos 2008 R2 terminalserver 2. play the video with chrome 3. What is the expected behavior? sound should be played corectly on remote client What went wrong? sound is played choppy. Did this work before? No Is it a problem with Flash or HTML5? Both Does this work in other browsers? Yes Firefox 10.0 Chrome version: 30.0.1599.101 Channel: stable OS Version: 2008 R2 Flash Version: Seems chrome tries to sync video an audio. But this does not work through rdp.
Oct 24 2013,
You need to switch between flash and html5 to test both. -> www.youtube.com/html5
Nov 4 2013,
Confirmed with RDP session to Win 7. Chrome audio is choppy. Other audio, including other browsers, is not choppy.
Dec 2 2013,
Confirmed. I connect to a virtual machine running win 7. HTML5 based video is not choopy. But flash based is choopy. Flash 11 in IE 10 is not choopy.
Feb 13 2014,
Oct 21 2014,
Note: this is a regression Tested builds of Chromium to find out at which revisions things broke. OS: Windows Multipoint 2011 (basically 2008 R2 w/ local RDP terminals) tldr: between rev 169488 => 169564 sound became choppy rev 163439 video broken rev 163757 video was working rev 169564 sound became choppy before revision 163201 video works, out of sync, sound seems fast? revision 163298 introduced ffmpegsumo.dll? video works, out of sync, sound seems smooth revision 163439 video is broken, sound seems smooth revision 163507 video is broken, sound seems smooth revision 163757 video works, sound seems smooth, out of sync revision 163997 video works, sound seems smooth, out of sync revision 169488 video seems good, sounds seems slower?, out of sync revision 169564 => latest video seems good, sound is choppy Cannot find a version of pepperflash that doesn't have choppy sound (maybe it exists, if someone has the earlier version of pepperflash I can test it).
Mar 15 2015,
I have reproduced this issue in multiple environments. In addition to what was tried above, I can reproduce with a Win 8.1 Pro endpoint via RDP with remoteFX. If I use an addon to force chrome to use flash on youtube, then launch chrome with --disable-bundled-ppapi-flash, the video and audio are good and perform as expected. Both FireFox and IE work as expected. Host machine is 2008R2 SP1. I can confirm issue exists as of Chrome 40.0.2272.89, but it has existed for at least a few months if not more.
Apr 15 2015,
This issue has been driving me nuts for a while. I have to copy the URL of any video and paste it into IE to watch videos. I found that adding -audio-buffer-size=8192 to the command line fixed my problem for youtube and some other sites. Some sites still are choppy though.
Apr 15 2015,
I had this issue when RDPing into 2008R2 SP1 (Aero off), but don't have it when RDPing into Windows 8.1 (Aero on). The RDP client was RDP 7.0 on XP in both cases.
Apr 15 2015,
I found another solution that seems to be working. Looks like enabling RDP 8 fixes the issue as well. http://blogs.msdn.com/b/rds/archive/2013/04/09/get-the-best-rdp-8-0-experience-when-connecting-to-windows-7-what-you-need-to-know.aspx
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