Articulate Audio Settings
It has come to light that when using Articulate presenter with FLV Videos as a talking head it is best to also include a blank audio file so that all your animations can synch with the video which is not an integral part of articulates timeline.
A few peculiar things happen though… if you use MP3 files instead of WAV files articulate is not happy, and if the file is anything but 48khz then articulate produces a hissing noise, which is very strange.
From this I determine that all audio should be in 48khz WAV format, that way everybody goes home happy…..
More can be read about this here: articulate forum

