2's complement conversion. Is this right?

[Grant Edwards]

On 2008-04-18, Bob Greschke <bob at passcal.nmt.edu> wrote:

> I'm on a Solaris 8 with Python 2.3.4 and when crunching
> through, literally, millions and millions of samples of
> seismic data fingers point out the difference nicely. :) I'll
> look into this more on some of our bigger better faster
> machines (there is no -m option for timeit on the Sun :).  The
> Sun is just what I develop on.  If stuff runs fast enough to
> keep me awake on there over an ssh'ed X11 connection it 
> should run even better on the real field equipment (Macs,
> Linuxes, WinXPs).

If time is an issue, I might write a C program to convert the
files from 24-bit numbers to 32-bit numbers.  Then you can use
numpy to load huge arrays of them in a single whack.

-- 
Grant Edwards                   grante             Yow!  .. he dominates the
                                  at               DECADENT SUBWAY SCENE.
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