Noise when changing slides of Audio Simulation

I created a software simulation with roughtly 15 slides.  On each of those slides I recorded audio talking about what the users would see.  When transitioning from one slide to the next sometimes you can hear the audio stop/start and other times you can't.  I went back to the slides in questino and trimmed some silence from the end/beginning to see if that would help but it has not.  Is there something that I am missing that would allow all of my slides to flow together?  We are using Captivate 8