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R
RPW
Participant
April 19, 2014
Question

Buffering Issues

  • April 19, 2014
  • 2 replies
  • 4075 views

We publish PowerPoint (2007 & 2010) presentations with audio using Adobe Presenter (v7 and v9). We then upload the zip folder onto our AdobeConnect server. From there, we share the presentation in an Adobe Connect (v9) seminar room, and play the recording. We have two issues:

  1. Major Buffering: When the presentations have videos or "Advance by User" slides, the presentation buffers for minutes or ad infinitum.

  2. Minor Buffering: When the presentations have only audio and we click around and the settle at one, the slides buffer for under a second at each transition.

Has anyone else experience the Major and Minor buffering issue? Does anyone have a workaround?

Thank you.

    This topic has been closed for replies.

    2 replies

    B
    BlauKirsche
    Participating Frequently
    January 16, 2015

    Hi RPW,

    Please forgive the intrusion, but did you ever resolve your buffering issue?

    I was confident that Jorma's suggested remedy would resolve the issue, but unfortunately not.

    Many thanks in hope.

    S
    Saumitra15A7
    Participant
    December 7, 2022

    This is an old ticket but wanted to share a resolution. This is happening with one of our clients and the solution is to have user do a 'click' - browsers are blocking auto-play and work fine when users click or interact using scrubber in the UI or any other mechanism to interact with the slide. What we did is included a launch file that redirected to the index.html (the start page) but has to be in the same window. And the buffering issue is resolved.

    Jorma_at_CoSo
    Jorma_at_CoSo
    Legend
    April 22, 2014

    You may be fighting a couple things.

    First, check in the Quality section of the Settings tool that the 'disable preloading of Flash content' isn't selected. That setting means that each slide starts loading when the viewer gets to it, so a buffering message will be seen on every slide.

    Second, it's worth knowing how Presenter pre-loads, as you are getting ahead of it, and probably seeing the buffering as a result. When you load a Presenter Presentation, the first three slides load fully during the loading screen (now you know why that presentation that has a 15 min video on slide 3 takes so long to load). Then an additional slide begins pre-loading every 3 seconds. So, slide 5 will begin preloading 6 seconds into the presentation playing back, for example. So, skipping to slide 38 right after the presentation starts playing will cause a buffering message and a wait due to the fact that that slide hasn't yet preloaded.

    B
    BlauKirsche
    Participating Frequently
    January 16, 2015

    Hi Jorma,

    I am a week into an Adobe Presenter trial, and happily I seem to have overcome a series of challenges to date. I am now so close to buying but am struggling with buffering during playback.

     

    As you pointed out in response to RPW's query, I had, indeed, disabled preloading and I'm sure that was the main cause of my major buffering issues. So I thank you for that tip.

    However, the buffering continues, although to a lesser extent, requiring the user to hit the advance slide button to load every slide from the point at which the buffering begins. Up to that point, all slide transitions are automatic as per Powerpoint.

    Would you have any further tips for me?

    Many thanks in hope.

    Jorma_at_CoSo
    Jorma_at_CoSo
    Legend
    January 16, 2015

    Other than looking at the content of your presentation and seeing if there are large objects (images and/or videos) that may be causing an issue, the only other change that I can think of making would be limiting the number of slides that are pre-loaded. This may help limit the bandwidth demand of presentations loading if many of the slides have large objects on them. No promises on it changing anything, but may be worth a try. Here is the process (and credit should be given to Adobe Support for passing along this information to me a while back). It should be noted that this was for Presenter

    1). Publish from Presenter locally on your hard drive.

    2). Navigate to the folder where you have published the presentation from step #1

    3). Locate the vconfig.xml its in the data folder:

    4). Add following tags in the vconfig.xml,  This will preload only 3 slides from the current slide.

    <preloader>

    <setBool name="precacheSlides" value="false"/>

    <setInt name="getNPrecedingSlides" value="1"/>

    <setInt name="getNSuccessiveSlides" value="3"/> <!--here you specify the number of slides you would want to preload from the current slide-->

    </preloader>

    <preloader>…</preloader> tags are sibling to <colors>…</colors> tag.

    1. e.g.

    </colors>

    <preloader>

    <setInt name="audioBufferTime" value="0"/>

    <setBool name="precacheSlides" value="false"/>

    <setInt name="getNPrecedingSlides" value="1"/>

    <setInt name="getNSuccessiveSlides" value="3"/>

    </preloader>

    <language id="en">

    5). Zip the published content with the modified vconfig.xml file and upload it to Connect.

    Give it a shot, play with the numbers and see if any of these values will help.

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