Speech and the propeller question

Zap-o

I was looking around the object exchange and seen that Chip made an object that will sing. I am asking if I need to create a RC circuit to make my propeller (I am not using the demo board) output analog? I want to employ the TPA4861. Its a MONO Audio Power Amplifier that has some cool features and only requires few passive devices. I was thinking that I needed a RC circuit before I send a signal in the Audio Input of the IC?

Sorry if the answer is in Chips object but I cant code assembly yet.

Mike Green

You do need an RC circuit. Use the one in the Demo Board as a model. It's stereo, but you could just implement one channel if you want.

David B

If you want to try some actual speech code, see this thread:

http://forums.parallax.com/forums/default.aspx?f=25&p=1&m=152683

Last weekend I loaded it and got it to say the numbers 0-9, with reasonable understandeability.