Hi all, A while back I submitted a ticket about some heavy stuttering when streaming via WiFi on my LAN http://pulseaudio.org/ticket/889 but got adviced to post here instead. To summarize I got a massive "Tx excessive retries" while streaming which resulted in mentioned stuttering. Later I discovered the WMM QoS in my router and played around with the settings. When WMM, which is supposed to prioritize things like VoIP, was turned off the stuttering disappeared until something else put load on the network, like i.e. http requests (this is exactly what WMM is supposed to rectify). When WMM was off anytime a site was loaded or youtube video streamed from anywhere else on the LAN, PA failed with heavy stuttering or sometimes no sound at all. This all seems to me like WMM is doing what it should but PA is not taking advantage of the WMM protocol. I did a quick research and found that to support 802.1p (WMM) a prioritize bit has to be set in layer 2 header of the packets. This is briefly explained here: http://msdn.microsoft.com/en-us/library/aa916767.aspx . I believe there is more information to find. My suggestion is that this protocol is added to PA, at least to test if things can be improved as I've seen several postings around the net about stuttering while streaming over WiFi. If this has already been suggested or tested I apologize. Best regards, Oscar
