small changes; sig gen square(), triangle(), pulse()

1 files changed, 13 insertions, 0 deletions

diff --git a/examples/6_iir_test.cpp b/examples/6_iir_test.cpp
new file mode 100644
index 0000000..116a680
--- /dev/null
+++ b/examples/6_iir_test.cpp
@@ -0,0 +1,13 @@
+Sample *process_data(Samples samples)
+{
+	constexpr float alpha = 0.7;
+
+	static Sample prev = 2048;
+
+	samples[0] = (1 - alpha) * samples[0] + alpha * prev;
+	for (unsigned int i = 1; i < samples.size(); i++)
+		samples[i] = (1 - alpha) * samples[i] + alpha * samples[i - 1];
+	prev = samples[samples.size() - 1];
+
+	return samples.data();
+}