Accessibility - Audio Autoplay

Hello,

1. I am looking for best practices for audio not to Autoplay on each slide in Storyline 360. I have also found that despite the screen reader announcing just the title it still clashes with the audio. How can I set this up so that the learner can make a selection once and not on each slide? 

2. My content is timed to the audio and certain elements show up when the voice over is referring to it and wonder adding a control to not Autoplay might impact the learner experience.