diff --git a/codecs/adpcm_slin_ex.h b/codecs/adpcm_slin_ex.h
new file mode 100755
index 0000000000..925391d179
--- /dev/null
+++ b/codecs/adpcm_slin_ex.h
@@ -0,0 +1,25 @@
+/*
+ * adpcm_slin_ex.h --
+ *
+ *	4-bit ADPCM data, 20 milliseconds worth at 8 kHz.
+ *
+ * Source: g723.example
+ *
+ * Copyright (C) 2001, Linux Support Services, Inc.
+ *
+ * Distributed under the terms of the GNU General Public License
+ *
+ */
+
+static unsigned char adpcm_slin_ex[] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
diff --git a/codecs/slin_adpcm_ex.h b/codecs/slin_adpcm_ex.h
new file mode 100755
index 0000000000..fb3a77eda3
--- /dev/null
+++ b/codecs/slin_adpcm_ex.h
@@ -0,0 +1,25 @@
+/*
+ * slin_adpcm_ex.h --
+ *
+ *	Signed 16-bit audio data, 10 milliseconds worth at 8 kHz.
+ *
+ * Source: g723.example
+ *
+ * Copyright (C) 2001, Linux Support Services, Inc.
+ *
+ * Distributed under the terms of the GNU General Public License
+ *
+ */
+
+static signed short slin_adpcm_ex[] = {
+	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
+};