Amazon Echo may soon know when you're sad or irritated

Amazon reportedly has a plan to keep the Amazon Echo a step ahead of Google Home and a rumored Siri-based device from Apple. The online retailer is apparently hoping to add a few new abilities to Alexa, the Echo's built-in personal digital assistant. Chief among them is the ability to detect emotion in a user's voice, according to MIT Technology Review. Equipped with emotional detection, a personal digital assistant should be better able to understand what you want. If Alexa detects you're getting frustrated during an interaction it could try a different strategy, for example.