Play Audio in PDF File
Step 1: Please make sure that you have the latest Adobe Acrobat Reader installed.
Step 2: Go to https://get.adobe.com/flashplayer/ and click the link which you see in this picture:
Step 3: Choose your system from the drop-down menu
Step 4: Choose NPAPI !!!!
Step 5: Click “Download now” and install.
You should now be able to listen to the Audio right in the Ebook. If not, a restart might help.
And no worries! You can always also just use the Audio files which you get when downloading the Ebook.