Playback is not working, TypeError: Unable to get property 'duration' of undefined or null reference

Symptom

When you try the playback Verba player throw an error whit the following message:

TypeError: Unable to get property 'duration' of undefined or null reference

Root cause

This error is dropped by our JavaScript player when the player is not able to identify the length of the call and the ActiveX controller is not abel to load.

The ActiveX controller is not able load when the PC/Server doesn't have audio device assigned or the media player can't open the call's media file because it is stored in Verba Media Format

Resolution

  • If the workstation where you try the playback doesn't have an audio device please try the playback on another machine where at least one audio device is configured.
  • If you have an audio device but the playback still not started check the format of the media files if the calls are recorded as Verba Media Format you have to install the Verba Media Codec. Please follow the instructions on our knowledge base: http://kb.verba.com/display/docs/Installing+Verba+Unified+Media+Codec
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