Web developers can use the SpeechSynthesis API to convert text on a web page into synthesized audio speech. While this feature is great for accessibility and audio queues, it is being abused by advertisements and low quality/scammy web sites.
As this method is one of the last remaining ways for a site to autoplay audio without user interaction, is being abused by sites and advertisements, and does not adhere to Google's autoplay policies, Google has decided to restrict its use starting in Chrome 71.
