diff --git a/src/main/java/moe/nekojimi/chords/Util.java b/src/main/java/moe/nekojimi/chords/Util.java
new file mode 100644
index 0000000..2c181ba
--- /dev/null
+++ b/src/main/java/moe/nekojimi/chords/Util.java
@@ -0,0 +1,37 @@
+package moe.nekojimi.chords;
+
+import java.nio.ByteBuffer;
+
+/*
+ * Copyright (C) 2022 jimj316
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/**
+ *
+ * @author jimj316
+ */
+public class Util
+{
+    public static String printSamples(ByteBuffer buf)
+    {
+        StringBuilder sb = new StringBuilder();
+        for (int i = 0; i < buf.limit(); i += 128)
+        {
+            sb.append(String.format("%x ", buf.get(i)));
+        }
+        return sb.toString();
+    }
+}