The simple answer is; NO!
Many people share the same concern about the Alexa devices such as the Amazon Echo. These amazing devices are being avoided by people because they think their private conversations are being surveilled and sent to Amazon.
What is the Echo?
Echo devices are essentially a small computer with some speakers and microphones. The computer is programmed to use Amazons Alexa Voice Service (AVS) to carry out requested tasks.
How it works
Speech to text software has been around for a while now, but Amazon have taken this even further. When you ask Alexa to do something, your voice is sent to Amazon, converted to text and processed by AVS.
If you ask Alexa for information such as the time, AVS will send a small audio file back to your device which it then plays to you through its speaker. Other requests may result in AVS sending a command to your device telling it what to do, such as play some music or switch on a smart light.
So, it’s not listening but it still hears…
Amazon Echo “listens” for what Amazon call a wake word, this work is “Alexa”. When the device hears this word it starts to record your voice; which is in turn is sent to Amazon Voice Service when you finish speaking.