Discrete Fourier Transform Question

Richard Owlett skrev:
> [I'm intentionally "sort of" top posting rather than snipping]
> [I'll intersperse my comments with quoted chunks]
> [I'll leave un-mutilated quote for those coming to discussion late]
>
>
>
>
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> Rune Allnor wrote:
>  > Erik skrev:
>  >
>  >>I have a question for people knowledgeable about the DFT.  In the
>  >>digital audio workstation program "Cubase SX", there is a tool which
>  >>performs a DFT on a given audio recording.  I'm a bit puzzled by one
>  >>of its features.
> [now occurs *MASSIVE* SNIP ;] {snipped material appears below}
>
> Rune Allnor then wrote:
>  >
>  > One might expect that the technical support staff at a vendor who
>  > produces and sells DSP software might know about zero-padding, too.
>  >
>
> Ahh now to *THE* question.
> In reality do they "produces and sells DSP software"?
>
> *OR*
>
> Do they sell an application suite?
>   a. Do the sell to an audience who might never had reason to have heard
> of either Nyquist or Shannon?

Probably. If so, they need support staff that is able to explain these
types of concepts to the customers who haven't a clue about DSP.

> Yes, I can see their product depending on *ADVANCED* DSP concepts.

Zero-padding is hardly advanced.

> I'm not sure there is any reason to even suspect that a large portion of
> their customer base had ever heard of "DSP".

The problems don't go away just because people are not aware of them.
The Shannon sampling limit is as valid as ever. The resolution of the
DFT is there, throwing spanners in the works regardless if the user
has heard the name "Heissenberg" or not.

I can see that a the first point of contact does not necessarily know
all the
technical aspects of a product. Lots of organizations have some sort of

tech staff that get those kinds of questions from the fron desk. The OP

stated that the *technical* staff he was in contact with, did not have
a clue.

Rune