On Fri, 16 Mar 2018 07:08:59 -0400, J.B. Wood wrote:

> Hello, all.  My question is about where Amazon's "Alexa" voice responses
> are generated.  Are they generated by a synthesizer on the local device
> (e.g. an Echo or Dot) or do they originate at the Amazon central server
> and then are sent/streamed to the local device to be played like a music
> file (e.g. mp4 or aac)?  Thanks for your time and comment.  Sincerely,

Don't know about alexa, but docs for the google AIY kit indicates that
the pi/hat generates text and receives text in return. When there are
easily available text to speech apps available, it would seem very
inefficient and bandwidth intensive to stream.

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