For a WordPress website, one of the the easiest yet effective ways to leverage machine learning capabilities of AWS is by leveraging Amazon Polly services bundled for WordPress users as AWS for WordPress plugin.
Activated this plugin for WebOStOp.com blog section that now has a audio version of each post.
From My Security Credentials of your AWS account, copy Access Key details.
Paste the same on fields under AWS, General.
Now go to each published post and enable Text-To-Speech feature.
Now, AWS for WordPress plugin is also activated for this site. I chose to add the Hindi and Bengali translation options. At the time of this writing, while the translation feature is working, the audio version not working despite being enabled. This might be due to a conflict with a plugin, theme, or any latest updates.