X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=decode.cpp;h=ef8630de9948532f66e324d82a35485f74e24aa9;hb=6d341e3e890484f23ce2b4ab057f344f13e32811;hp=b2878feb0e0a993c4ce37dc616c7f4453f8bbf73;hpb=0f23da84ab2a790a5a9450c1b05f6300362fc91c;p=c64tapwav

diff --git a/decode.cpp b/decode.cpp
index b2878fe..ef8630d 100644
--- a/decode.cpp
+++ b/decode.cpp
@@ -1,3 +1,6 @@
+// Copyright Steinar H. Gunderson <sgunderson@bigfoot.com>
+// Licensed under the GPL, v2. (See the file COPYING.)
+
 #include <stdio.h>
 #include <string.h>
 #include <math.h>
@@ -339,7 +342,7 @@ std::vector<float> do_rc_filter(const std::vector<float>& pcm, float freq, int s
 {
 	std::vector<float> filtered_pcm;
 	filtered_pcm.resize(pcm.size());
-	Filter filter = Filter::hpf(M_PI * freq / sample_rate);
+	Filter filter = Filter::hpf(2.0 * M_PI * freq / sample_rate);
 	for (unsigned i = 0; i < pcm.size(); ++i) {
 		filtered_pcm[i] = filter.update(pcm[i]);
 	}