Radio is one of the best mediums for those who are visually impaired - it's all audio and there's nothing to see. But how do you know what station you're listening to if you can't see the dial? Now an inventor has come up with a new self-built set designed to solve that problem. 

In addition to the usual speaker, it comes with a button that can be pushed that reads out the frequency and the channel the listener is on to make it easier to identify. (And with so many playing the same kind of music, that's not always easy.)

But the designer still isn't happy his invention.  

"[One] issue I have is with the quality of the Arduino Talkie sound for the announcement sounds," [Simon] Carter admits. "Using the Arduino Talkie library that uses older LPC technology produces robotic, noisy, scratchy audio and popping sounds. I don't like the sound quality at all. You could say it is adequate and get's the job done but it is not all that pleasant to listen to. It just does not sound quite ready for prime time."

He intends to keep developing the idea and hopes to make it sound even better.

This FM Radio Has an In-Built Announcer for the Visually Impaired