Problems with audio playback

Symptoms:

Playback of an audio in online course is delayed or the first seconds of the audio file are not audible

Cause and solution

If you run Didac trainer through a so-called "Desktop as a service" (DaaS), such as Citrix, Microsoft Virtual Deskop, e.l. can one on some platforms experience delay with respect to audio playback. This is related to how this service is set up to handle audio playback.

Solution

Talk to your IT department, or those responsible for setting up the desktop service, and ask them to increase the performance of audio playback if possible.

Current references:

https://support.citrix.com/article/CTX121613

https://support.citrix.com/article/CTX222588

Audio playback in online course on iPad OS, version 13
There is a bug in Safari, on iPad OS 13.x (not iOS), which partially prevents playback of audio in web courses on the standard browser - ie Safari.

Note that this does not apply to the iPhone. As of September 2019, Apple is developing two different operating systems for iPhone and iPad, respectively, iOS and iPad OS.

Also note that this does not apply to other browsers, such as. Chrome or Edge on iPad OS.

Solution

For now, we recommend using other browsers on iPad (Chrome), or completing the course on another platform.