default_kernel_data Struct Reference

Detailed Description

Default kernel function.

A Welch-windowed sinc interpolating kernel is used. See

Smith, Julius O. Digital Audio Resampling Home Page Center for Computer Research in Music and Acoustics (CCRMA), Stanford University, 2014-01-10. Web published at http://www-ccrma.stanford.edu/~jos/resample/.

for more information, but note that that reference uses a Kaiser window for the sinc kernel's envelope whereas we use a Welch window here. The Welch window (inverted parabola) is chosen because it yields results similar in accuracy to the Lanczos window but is much less costly to compute.

Definition at line 49 of file TimeSeriesInterp.c.

Data Fields
double	welch_factor

Field Documentation

welch_factor

double default_kernel_data::welch_factor

Definition at line 50 of file TimeSeriesInterp.c.