Making your sensor speak

Suppose that you have deployed sensors at various locations. Those sensors perform monitoring to detect a specific purpose. When a sensor finds a thing that its looking for, a sensor device will send an alert to a command center. Some people probably stand by on that location. When an alert comes, the system can make a sound through a speaker. 

Message-to-sound or text-to-speech is a field of speech technology that leverages machine learning. A system can convert text or message to human speech. In general, the scenario can be described in the following figure:

From the preceding figure, IoT device can perform sensing and send data to AWS. IoT device can send an alert message to AWS to inform to the command center. AWS can convert text message to sound message. Once a command center receives a sound message, it performs to generate sound through a speaker.

Amazon AWS provides a service that applies speech technology, named Amazon Polly. You will learn how to work with...