Language can become a barrier for humans and robots when trying to communicate. The robot will have the ability to produce sounds in order to communicate with people, animals and other robots.
When I first started exploring ways to add speech to my robotics projects I was using a small FM transmitter to send audio to the robot. However, it can probably be agreed that just sticking a radio in the robot isn’t that cool. Instead we are going to look at a few of the different software and hardware required make this conversion.
We are going to set up a dedicated speech processor that will receive text data from the robot’s main computer which it will then process into audio signals that can be understood as words. The following options list various pros and cons for available solutions that can handle speech synthesis on either the hardware or software level.
Pros - Arduino board is low cost. - Many programs for speech synthisis on an Arduino have already been created so very little needs to be created from scratch.
Cons - Lowest quality audio output of all options
An amplifier will be required in either case to amplify the audio you generate for output through speakers.