[LAU] Rolling off high frequencies when mastering?

[Arnold Krille]

On Wednesday 21 April 2010 08:51:22 Arnold Krille wrote:
> The highest frequency possible to reproduce -with correct amplitude- is
>  half the sampling-rate _only_ if the phase is aligned to the
>  sampling-clock so that minima/maxima of the sinus are correctly sampled.
>  If its out of phase, the amplitude is not reproduced correctly.
> It is easy to understand that this correlation between phase and correct
> amplitude also affects frequencies below half the sampling-rate. Might be
>  as low as quarter of the sampling-rate, which in case of the CD is 11kHz.
>  Below that you will have more then four samples to reproduce the sinus
>  wave. That is in fact another reason to do the recording, mixing and
>  mastering in more then 44kHz...

Okay, the answers teach me that this is wrong. I didn't yet think about this 
as in-depth as I should have before writing that.

Thanks for the clarifications,

Arnold
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