Re: Graphing Audio Samples

Jerry Avins wrote:
Randy Yates wrote:
Robert A. wrote:
Hi guys,

When I graph individual audio samples what's the best way to zoom out ? I
can think of several methods but I'm not sure which will work best.

Say I am zoomed out to level 8, meaning for every eight samples I plot one
of them, I can simply ignore seven of them, I can average them, I can use
the maximum value, and so on.

What do you think ?

Thanks,
Robert A.

Robert,

If you mean that at zoom level 8 you only have one
horizontal pixel coordinate to represent 8 samples, then what
I would do is plot all 8 samples at that same
horizontal coordinate but using (possibly) multiple
vertical coordinates. Averaging them, max value,
etc., loses information that you probably don't want
to lose.

Information is lost in any case: sequence, with the way you describe.

Hi Jerry,

What you say is true - there MUST be some loss of information.
What I meant was that averaging and min/max lose information
that doesn't HAVE to be lost.

--Randy

.

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