Hi Guys

Talk about minimalist computing, I just published 131 kilobytes of App to Appleís App Store
Itís a freebie, so if you still need a DTMF generator for any brew go get it.
Itís a real DTMF synth which generates sine waves for two tones and adds each value of each sample pair together,
and then divides the result by 2, and then feeds the data into the audio buffer. DSP DTMF is unusual for the App Store.

https://www.youtube.com/watch?v=sFulO6zJXp8

Cheers, Art.