diff -r 3e0284efa9fd Lib/wave.py
--- a/Lib/wave.py	Wed May 29 19:15:28 2013 +0200
+++ b/Lib/wave.py	Wed May 29 15:27:23 2013 -0400
@@ -83,12 +83,10 @@
 _array_fmts = None, 'b', 'h', None, 'l'
 
 # Determine endian-ness
+import sys
+big_endian = sys.byteorder == 'big'
+
 import struct
-if struct.pack("h", 1) == b"\000\001":
-    big_endian = 1
-else:
-    big_endian = 0
-
 from chunk import Chunk
 from collections import namedtuple
 
diff -r 3e0284efa9fd Misc/ACKS
--- a/Misc/ACKS	Wed May 29 19:15:28 2013 +0200
+++ b/Misc/ACKS	Wed May 29 15:27:23 2013 -0400
@@ -1222,6 +1222,7 @@
 Péter Szabó
 Amir Szekely
 Arfrever Frehtes Taifersar Arahesis
+Hideaki Takahashi
 Neil Tallim
 Geoff Talvola
 Musashi Tamura