I have OS X Lion and the messages beta on my macbook pro. When in messages, if I initiate a video chat there is no audio. I know this must be something on my end because if I'm invited to a video chat it works fine. Please help
I have OS X Lion and the messages beta on my macbook pro. When in messages, if I initiate a video chat there is no audio. I know this must be something on my end because if I'm invited to a video chat it works fine. Please help
Hi,
The Buddy's Audio can get dropped completely if the speed of your Internet connections are vastly different.
For example the minimum speed for a 1-1 video chat is only 128kbps Upload (As Downloads tend to be faster).
Where I live in the United Kingdom I can only get DLS. This is further subject to the distance to the Exchange.
DLS at less than 3.5 km can be done at 20Mb at most exchanges.
At some exchanges there is roll out of some Fibre optic services.
In most larger towns and cities there is normally the option of a Cable service that offers similar figures.
In some parts of Sweden you can get 100Mbps services.
When the speed from your ISP varies a large amount then iChat will drop Frames to smooth out the Video
There comes a point when so many frames are dropped that the Audio will not make sense and will be dropped.
At about 128kbps a 5% variance will take you below the 100kbps mark (after allowing for the actual connection overheads)
At 10Mbps that 5% variance can be (in round terms) 500kbps
(A 500kbps service is itself good enough for a 4 way Video chat)
My experience is that PC users on AIM tend to only send the Pic at 10 frames a second (Fps). Any slower than this and the picture losses it's smoothness and flow.
You may see different Speeds and Frame Rates when you Call Out compared to when others Call In.
Setting the Bandwidth Limit to a lower figure such as 500kbps (fast enough for 4 way chats) may get around any variances in the speeds you see in the Connection Doctor during a live chat.
7:43 PM Friday; June 22, 2012
Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"
iMac 2.5Ghz 5i 2011 (Lion 10.7.4)
G4/1GhzDual MDD (Leopard 10.5.8)
MacBookPro 2Gb (Snow Leopard 10.6.8)
Mac OS X (10.7.4),
"Limit the Logs to the Bits above Binary Images." No, Seriously
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