Alfons Adriaensen wrote:
>    
> To summarize, aliasing is the result of the _sampled_ nature of a
> digital signal, not of its numerical (digital) form.
>
>   

That is true for your particular example, but aliasing artifacts can be 
introduced during digital signal processing.
Most noticeably, when using digital signal processing to resample from a 
high sample rate to a lower sample rate.


James


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