diff --git a/tools/test/audio/src_test.m b/tools/test/audio/src_test.m
index e97663faf..4e275bc56 100644
--- a/tools/test/audio/src_test.m
+++ b/tools/test/audio/src_test.m
@@ -262,8 +262,8 @@ end
 
 prm = src_param(t.fs1, t.fs2, test.coef_bits);
 test.f_start = 20;
-test.f_end = prm.c_pb*min(t.fs1, t.fs2);
-test.fu = prm.c_pb * t.fs2;
+test.f_end = min(prm.c_pb * min(t.fs1, t.fs2), 20e3);
+test.fu = min(prm.c_pb * t.fs2, 20e3); % AES17 5.2.5 standard low pass as 20 kHz
 
 %% Create input file
 test = thdnf_test_input(test);