Index: src/audio.cc
--- src/audio.cc.orig
+++ src/audio.cc
@@ -22,9 +22,11 @@
 //    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
 #include <stdlib.h>
-#include <iostream.h>
+#include <iostream>
 #include <string.h>
 
+using std::cerr;
+using std::endl;
 #include "audio.h"
 #include "utils.h"
 #include "preference.h"
