Audio Cuts out on random slides

Thank you for the additional detail - I too heard a digital chirp on our audio - That was defiantly not in the original file - and was sometimes small and not very disturbing but other times large and surprising.  We would often simply replace the audio file again.  We typically insert only .aif audio into our Storyline courses - it tends to sound better after it is absorbed into Storyline - and converted vs using .mp3 audio - which doesn't hold up to the layers of compression as well as the air audio - I only mention it incase that is another point of where or how the error is prompted. (and also worth noting the SAME Articulate review file is creating the error on a PC but not a Mac.)