-const int SignalFilter::FILTER_BANDLIMIT = 0;
-const int SignalFilter::FILTER_SINC = 1;
-const int SignalFilter::FILTER_G_HAMMING = 2;
-const int SignalFilter::FILTER_COSINE = 3;
-const int SignalFilter::FILTER_TRIANGLE = 4;
-const int SignalFilter::FILTER_ABS_BANDLIMIT = 5; // filter times |x = |
-const int SignalFilter::FILTER_ABS_SINC = 6;
-const int SignalFilter::FILTER_ABS_G_HAMMING = 7;
-const int SignalFilter::FILTER_ABS_COSINE = 8;
-const int SignalFilter::FILTER_SHEPP = 9;
+const int SignalFilter::FILTER_ABS_BANDLIMIT = 0; // filter times |x = |
+const int SignalFilter::FILTER_ABS_SINC = 1;
+const int SignalFilter::FILTER_ABS_G_HAMMING = 2;
+const int SignalFilter::FILTER_ABS_COSINE = 3;
+const int SignalFilter::FILTER_SHEPP = 4;
+const int SignalFilter::FILTER_BANDLIMIT = 5;
+const int SignalFilter::FILTER_SINC = 6;
+const int SignalFilter::FILTER_G_HAMMING = 7;
+const int SignalFilter::FILTER_COSINE = 8;
+const int SignalFilter::FILTER_TRIANGLE = 9;