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December 9, 2010
Question

latency time issue

  • December 9, 2010
  • 1 reply
  • 612 views

I've build a live video/audio chat application. All works fine only the issue is latency of 5 secs. I'm using FMS 3.5 and FLEX.

Please help me out from this issue.

Thanks,

Sanjay

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    1 reply

    Participating Frequently
    December 9, 2010

    Heyi Sanjay,

    I will say that information provided is highly insufficient to resolve your query. It will be helpful if you can answer following queries:

    1. What platform you are using?

    2. What Flash Player version is there in use?

    3. Are you sure latency is not due to your network load and bandwidth conditions?

    4. Is it an end-to-end latency (e.g. once a chat app starts it takes 5 sec delay and then no delay in between) or a jittery latency (where each time an activity happnes with the application it reflects after 5 seconds only)

    5. More information about your environment, like if you are using caching/proxy server in between, gegoraphical distances among users of your chat app etc

    6. In your chatapp only audio is dealying with 5 seconds, or only video or both? have you tried with data (i.e. textual chat) and observed any delay with delivery of data messages?

    7. What is the load on your server when this delay starts happening?

    8. Do you observe delay since the start of app or it starts happening after a certain duration?

    9. Also, what kind of machines are you using? do they have enough network card capacity and Bandwidth available to push and receive the audio/video data?

    10. Also, bitrates and audio/video encoding also has a role.

    Please perform all these checks and if you can improve certain things to decrease the amount of delay.

    At this point I can suggest you to turn aggregate messages off inside <Live> (FMS_install_folder\conf\_defaultRoot_\_defaultVHost_\Application.xml) and try again with your chat application to see if it improves on delay.