Date: Tue Nov 24 2015 - 17:27:57 EET
On Tue, 24 Nov 2015 09:53:40 -0500
Paul Davis <paul@email-addr-hidden> wrote:
> In Monty's video he *specifically* talked about how this
> representation of digital samples is wrong and has confused so many
> people.
This may be naive, but I thought it did not apply because in
Audacity, at that zoom in level, it really does not look like a
staircase at all, here for an acoustic solo guitar waveform. Even
though the lines between points are straight, they are following
curves. See attached. So I thought his staircase was a gross
representation that did not apply.
> The connecting straight line segment is an illusion and does not
> exist. You are getting confused in the same way that Monty discussed.
> I will say that I don't that he did a very good job of explaining
> this part though. Sampled waveforms should never be drawn as
> "staircases", but should be pointillistic. However to understand how
> this works, you need to understand how the reconstruction filter
> works in a digital to analog converter, and he didn't really describe
> this, and most people don't know it either.
I was wondering about this. In extremely simple terms I think that
capacitors smooth out curves.
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