Theo Verelst Local Diary Page 101
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means only as a whole and including the references to me. I
guess that's normal, the writer can chose that of course.
Feb 11 02:19, 2010
Well, what a fast new server it has become! And now the notebook from
'06 which was advertised as the workds' first High Definition notebook
has been replaced by a i7 notebook with 15" HD LED screen, and a GT540M
graphics card for which a Linux driver doesn't even yet exist on
NVidia's own website...
I recorded some actual top jazz, for those who want to hear it: ehwyg.mp3 256
kb/s mp3 stereoo, 3.8MB
It's a take on "Everything Happens When You're Gone" from Michael
Breckers brilliant and classic jazz fusion album "Don't Try This at
Home" (not because otherwise the new style council comes to bitch you,
but because Nobody Can...).
Menawhile I started on making a close-to-perfect "resample" program,
which uses the theoretical reconstruction "sinc" function to for
instance make a correctly resampled 192kS/s version of a CD (44.1kS/s)
song, using the I7's power. I've used a audio format conversion program
to read and write for instance wav or flac audio formats, also in 24
bits. I can read and write and do things with the data im memory
correctly and fairly efficiently at the moment. I've prepared a big
malloced memory space for long integers which are to store the
resampled data, and I plan to add sinc function components with a
convolution filter length of over 3 seconds (!, not milliseconds),
according to the sampling theory and corresponding better weith my own
esimation of required accuracy during the process, compared with a
dozen or so samples in all kinds of polyphase filters I want to use
more like a few hundred thousand samples per output sample. I didn't
exacty compute how much processor power that will cost, but the I7 can
do about 20Giga-double computations per second, and I can also
use Cuda possibly for this purpose, so we'll see....
