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6. Preparing To Launch A Presentation
6.1 Pre-Launch Preparation
Before streaming a live presentation, the Presenter may want to open both the
Accordent PresenterPRO Presentation Manager and the interface that will be
viewed by the audience. By opening the interface, the developer will be able to
monitor the identical presentation that the end user is viewing.
Additionally, if the presenter has previously prepared content, such as URL lists,
for use in a presentation, that content should be imported into the Presentation
Manager.
Also, as discussed below, both in-band and out-of-band synchronization require
the presenter to complete steps prior to launching a presentation:
• Out-of-Band: The presenter must apply encoding time offsets to account for
the latency that occurs during the encoding of streaming media (See Section
6.2) and
• In-Band: The presenter must use the PE-Controller to launch the encoders
that will be encoding the streaming media (See Section 6.2).
6.2 In-Band & Out-Of-Band Preparation
Previously, the “Media-Info” page in the Presentation Wizard was used to specify
whether the presentation would be delivered in-band or out-of-band. In-band
distribution is selected by clicking the “Use In-Band Encoder” field; if left un-
checked, then out-of-band distribution is selected by default.
6.2.1 Out-of-Band
Because the streaming and non-streaming elements of a presentation are delivered
separately when out-of-band delivery is used, it is necessary to prescribe encoding
time offsets prior to launching a presentation to account for delays that may occur
during the encoding process.
Encoding time offsets enable the presenter to precisely delay the distribution of
non-streaming media content (e.g. Microsoft PowerPoint slides and URLs) to
ensure that the non-streaming content will remain the synchronized with