Date   : Mon, 30 Apr 2007 23:40:29 +0100
From   : zeem.uk@... (Alex Taylor)
Subject: Tone Dialling Frequencies

On 30 Apr 2007, at 23:30, Andrew Chesterton wrote:
>
> I'm not sure if the BBC sound chip can output 2 different frequencies
> simultaniously.

Surely it can, by using two sound channels. The Electron couldn't do  
this though....

This is what made me think that there might be some element of  
distortion in the Beeb's output, if it doesn't work.

-- 
Alex Taylor