I've been trying to use the Tone function to make a fire engine siren sound effect for a small toy for my son.
A simple nee naa nee naa type sound works fine with the Tone function however when I try to make a rising and falling sound effect it works but sounds very rough and not smooth - not nice to listen to at all and given we'll be subjected to this sound a lot I want to make it less annoying :-)
I've been using the 8mhz internal clock. I want to keep the component count down as I don't have much space inside the toy to place this device.
Does anyone have any advice on how to make this sound better on an ATTiny85?
The approach i've been using is this: