diff --git a/src/tvhead.h b/src/tvhead.h
index aa2e4ad4..812b4ff6 100644
--- a/src/tvhead.h
+++ b/src/tvhead.h
@@ -812,6 +812,7 @@ getmonoclock(void)
 }
 
 int sri_to_rate(int sri);
+int rate_to_sri(int rate);
 
 
 extern time_t dispatch_clock;
diff --git a/src/utils.c b/src/utils.c
index 50788217..e3975f12 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -98,6 +98,20 @@ sri_to_rate(int sri)
 }
 
 
+/**
+ *
+ */
+int
+rate_to_sri(int rate)
+{
+  int i;
+  for(i = 0; i < 16; i++)
+    if(sample_rates[i] == rate)
+      return i;
+  return -1;
+}
+
+
 /**
  *
  */