Skype on Rev. A Air

Discussion in 'MacBook Air' started by Killerbob, Jul 19, 2009.

  1. Killerbob macrumors 6502a

    Joined:
    Jan 25, 2008
    #1
    My wife has had the original MBA since it came out, and is really happy with it. I reinstalled OSX and it does what she needs it to do (MSO, Adobe, Internet, and Skype).

    However, I used it the other day and noticed how slow it all got when I was using Skype video. I checked it out, and bingo, the CPU utilisation increased by 20% the second the MBA broadcasted video. Without video the CPU was at 10% (Safari, Entourage, and Skype running), but as soon as I enabled recording and broadcasting video, the CPU went up to 30-35%.

    I checked this on my MBP, and on it you can't even see an increase in CPU utilisation when using Skype (with or without iSight).

    The Skype version is the latest for OSX, ver. 2.7.0.330, and the video is correctly set to use the Built-in iSight. But, why such a difference in CPU usage between the MBA and the MBA :confused:

    KB
     
  2. ayeying macrumors 601

    ayeying

    Joined:
    Dec 5, 2007
    Location:
    Yay Area, CA
    #2
    I'm not sure why there's a CPU difference. Whenever I use Skype, regardless of whatever system I'm on, it takes up ~50% of one core w/ video or 5% cpu without.
     
  3. Killerbob thread starter macrumors 6502a

    Joined:
    Jan 25, 2008
    #3
    I dbl. checked everything, and you are right. It does take up a lot of CPU on the MBP as well, it is just not that noticeable. How come though, the video takes up so much?

    KB
     
  4. SnowLeopard2008 macrumors 604

    SnowLeopard2008

    Joined:
    Jul 4, 2008
    Location:
    Silicon Valley
    #4
    Video chats take up a whole lot more bandwidth than audio/text, the CPU has to work harder to encode the video and send it out. It's a constant process, therefore it takes more CPU process power. If video stutters, then I'd be worried, but if it doesn't you should be fine.
     
  5. Killerbob thread starter macrumors 6502a

    Joined:
    Jan 25, 2008
    #5
    It stutters on my Air, but of course not on my Pro. By stutters I mean, when I am using video in a Skype call, it from time to time jerks in the video signal, the receiving as well as the sending. And, it is not because of my internet connection; 25'000/2'500.

    KB
     
  6. RSW macrumors member

    RSW

    Joined:
    May 13, 2009
    #6
    For what it's worth, I used my magic jack on a trip to Cancun a day ago, and it worked just fine. There were no issues with sound quality at all.
     
  7. GeekGirl* macrumors 65816

    GeekGirl*

    Joined:
    Feb 26, 2009
    Location:
    Buffalo, NY
    #7
    for a VOIP Ooma is far the best check out the reviews on Amazon:)
     
  8. Mhaddy macrumors 6502

    Mhaddy

    Joined:
    Oct 26, 2005
    Location:
    Canada
    #8
    I've also got a Rev A MBA and after ~30 mins of Skype, the video will freeze and I have to disable/enable video to get it back (after which, it does the same thing every 5-10 mins). Tried this over Wifi and Ethernet, same problem, very annoying.
     
  9. ayeying macrumors 601

    ayeying

    Joined:
    Dec 5, 2007
    Location:
    Yay Area, CA
    #9
    My video doesn't freeze, it just blacks out every 5 minutes or so after 30 minutes of video. I'm not sure why, happened on all my of my Macs
     

Share This Page