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--- a/src/effects_i_dsp.c
+++ b/src/effects_i_dsp.c
@@ -357,7 +357,7 @@
double scale, sox_bool dc_norm)
{
int i, m = num_taps - 1;
- double * h = malloc(num_taps * sizeof(*h)), sum = 0;
+ double * h = calloc(num_taps, sizeof(*h)), sum = 0;
double mult = scale / lsx_bessel_I_0(beta), mult1 = 1 / (.5 * m + rho);
assert(Fc >= 0 && Fc <= 1);
lsx_debug("make_lpf(n=%i Fc=%.7g β=%g ρ=%g dc-norm=%i scale=%g)", num_taps, Fc, beta, rho, dc_norm, scale);
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