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commit : db1 accuracy improved

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This commit is contained in:
Rafat Hussain 2016-01-12 18:30:06 +05:30
parent 74d5dd3b3f
commit 2197daab4d
1 changed files with 5 additions and 5 deletions
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8
src/wavefilt.c
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@ -165,10 +165,10 @@ int filtlength(char* name) {
int filtcoef(char* name, double *lp1, double *hp1, double *lp2, double *hp2) { int filtcoef(char* name, double *lp1, double *hp1, double *lp2, double *hp2) {
int i; int i;
if (!strcmp(name,"haar") || !strcmp(name,"db1")) { if (!strcmp(name,"haar") || !strcmp(name,"db1")) {
double lp1_a[] = { 0.7071, 0.7071 }; double lp1_a[] = { 0.7071067811865475, 0.7071067811865475 };
double hp1_a[] = { -0.7071, 0.7071 }; double hp1_a[] = { -0.7071067811865475, 0.7071067811865475 };
double lp2_a[] = { 0.7071, 0.7071 }; double lp2_a[] = { 0.7071067811865475, 0.7071067811865475 };
double hp2_a[] = { 0.7071, -0.7071 }; double hp2_a[] = { 0.7071067811865475, -0.7071067811865475 };
for (i = 0; i < 2; ++i) { for (i = 0; i < 2; ++i) {
lp1[i] = lp1_a[i]; lp1[i] = lp1_a[i];
hp1[i] = hp1_a[i]; hp1[i] = hp1_a[i];