Displaying 3 results from an estimated 3 matches for "performance_issu".
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2014 Aug 01
3
Fix and question apodization functions
Hi,
I was doing some speed and compression comparisons with various
apodization/windowing functions, and found out that the
definitions for the bartlett and bartlett_hann window in the
FLAC codebase have been wrong since their introduction. The
attached patch fixes that.
Furthermore, I found some peculiar behaviour of the gauss
apodization that seems to expose bug. Using different windows
2014 Aug 02
0
Fix and question apodization functions
...en using FLAC 1.3.0.
>
> I used gprof to check and it seems that the time spend in the
> function FLAC__lpc_compute_autocorrelation_intrin_sse_lag_16
> increases 20-fold while the number of calls stays the same.
> Could this be a bug?
<http://en.wikipedia.org/wiki/Denormal_number#Performance_issues> ?
Try something like this:
void FLAC__window_gauss(FLAC__real *window, const FLAC__int32 L, const FLAC__real stddev)
{
static const double anti_denormal = 0.88817841970012523233890533447266e-15; /* 2e-50 */
const FLAC__int32 N = L - 1;
const double N2 = (double)N / 2.;
FLAC__int32 n;...
2004 Dec 07
3
Roaming profiles - exclude Application Data from roaming profile
Hello All,
I have a problem with my roaming profiles where they are becoming too
large due to the Thunderbird mail accounts (stored by default) in
Application Data. What I would like to do is exclude this directory from
being part of the roaming profile. How can I do this?
Also, how hard is it to have some users not use a roaming profile but
others continuing to use a roaming profile? We