Re: Are purely-analog audio devices immune to aliasing?

geoff wrote:
> Don Pearce wrote:
>> Let me think about this! I'll do the maths later. I think you are
>> right that you will get stuff all over the place that you don't want,
>> but I think I would tend to call them images rather than aliases.
> 
> That was the analogy I was drawing with my "LSB/USB" post.  That the sum
and 
> difference frequencies are in som way analogous to the frequency
products 
> from aliasing.
> 
> geoff 
> 
> 

Yes they are analogous in that a sampling device will also produce them. 
The difference is that the sampler also produces a comb of them up to 
infinity. You could say that the analogue image products are the limit 
case of aliasing when the dead space approaches zero.

d