diff --git a/src/direwolf.c b/src/direwolf.c
index 8735193b..3e7dca27 100644
--- a/src/direwolf.c
+++ b/src/direwolf.c
@@ -300,7 +300,7 @@ int main (int argc, char *argv[])
 
 	text_color_init(t_opt);
 	text_color_set(DW_COLOR_INFO);
-	dw_printf ("Dire Wolf version %d.%d (%s) BETA TEST 4\n", MAJOR_VERSION, MINOR_VERSION, __DATE__);
+	dw_printf ("Dire Wolf version %d.%d (%s) BETA TEST 5\n", MAJOR_VERSION, MINOR_VERSION, __DATE__);
 	//dw_printf ("Dire Wolf DEVELOPMENT version %d.%d %s (%s)\n", MAJOR_VERSION, MINOR_VERSION, "G", __DATE__);
 	//dw_printf ("Dire Wolf version %d.%d\n", MAJOR_VERSION, MINOR_VERSION);
 
diff --git a/src/rrbb.c b/src/rrbb.c
index 2047d69f..e787dae5 100644
--- a/src/rrbb.c
+++ b/src/rrbb.c
@@ -51,8 +51,8 @@
 #define MAGIC2 0x56788765
 
 
-static int new_count = 0;
-static int delete_count = 0;
+volatile static int new_count = 0;
+volatile static int delete_count = 0;
 
 
 /***********************************************************************************
@@ -425,6 +425,50 @@ alevel_t rrbb_get_audio_level (rrbb_t b)
 
 
 
+/***********************************************************************************
+ *
+ * Name:	rrbb_set_speed_error
+ *
+ * Purpose:	Set speed error of the received frame.
+ *
+ * Inputs:	b		Handle for bit array.
+ *		speed_error	In percentage.
+ *
+ ***********************************************************************************/
+
+void rrbb_set_speed_error (rrbb_t b, float speed_error)
+{
+	assert (b != NULL);
+	assert (b->magic1 == MAGIC1);
+	assert (b->magic2 == MAGIC2);
+
+	b->speed_error = speed_error;
+}
+
+
+/***********************************************************************************
+ *
+ * Name:	rrbb_get_speed_error
+ *
+ * Purpose:	Get speed error of the received frame.
+ *
+ * Inputs:	b	Handle for bit array.
+ *
+ * Returns:	speed error in percentage.
+ *
+ ***********************************************************************************/
+
+float rrbb_get_speed_error (rrbb_t b)
+{
+	assert (b != NULL);
+	assert (b->magic1 == MAGIC1);
+	assert (b->magic2 == MAGIC2);
+
+	return (b->speed_error);
+}
+
+
+
 /***********************************************************************************
  *
  * Name:	rrbb_get_is_scrambled	
@@ -488,6 +532,7 @@ int rrbb_get_prev_descram (rrbb_t b)
 }
 
 
+
 /* end rrbb.c */
 
 
diff --git a/src/rrbb.h b/src/rrbb.h
index 4b283726..894a448f 100644
--- a/src/rrbb.h
+++ b/src/rrbb.h
@@ -33,6 +33,7 @@ typedef struct rrbb_s {
 	int slice;		/* Which slicer. */
 
 	alevel_t alevel;	/* Received audio level at time of frame capture. */
+	float speed_error;	/* Received data speed error as percentage. */
 	unsigned int len;	/* Current number of samples in array. */
 
 	int is_scrambled;	/* Is data scrambled G3RUH / K9NG style? */
@@ -84,6 +85,9 @@ int rrbb_get_slice (rrbb_t b);
 void rrbb_set_audio_level (rrbb_t b, alevel_t alevel);
 alevel_t rrbb_get_audio_level (rrbb_t b);
 
+void rrbb_set_speed_error (rrbb_t b, float speed_error);
+float rrbb_get_speed_error (rrbb_t b);
+
 int rrbb_get_is_scrambled (rrbb_t b);
 int rrbb_get_descram_state (rrbb_t b);
 int rrbb_get_prev_descram (rrbb_t b);