diff -r 37c06d20dda5 Lib/aifc.py
--- a/Lib/aifc.py	Mon Oct 14 10:44:25 2013 +0300
+++ b/Lib/aifc.py	Mon Oct 14 14:36:53 2013 +0300
@@ -692,9 +692,14 @@
         return self._nframeswritten
 
     def writeframesraw(self, data):
+        if not isinstance(data, (bytes, bytearray)):
+            data = memoryview(data).cast('B')
         self._ensure_header_written(len(data))
         nframes = len(data) // (self._sampwidth * self._nchannels)
         if self._convert:
+            if not (isinstance(data, bytes) or
+                    isinstance(data, memoryview) and data.readonly):
+                data = bytes(data)
             data = self._convert(data)
         self._file.write(data)
         self._nframeswritten = self._nframeswritten + nframes
diff -r 37c06d20dda5 Lib/sunau.py
--- a/Lib/sunau.py	Mon Oct 14 10:44:25 2013 +0300
+++ b/Lib/sunau.py	Mon Oct 14 14:36:53 2013 +0300
@@ -415,9 +415,14 @@
         return self._nframeswritten
 
     def writeframesraw(self, data):
+        if not isinstance(data, (bytes, bytearray)):
+            data = memoryview(data).cast('B')
         self._ensure_header_written()
         if self._comptype == 'ULAW':
             import audioop
+            if not (isinstance(data, bytes) or
+                    isinstance(data, memoryview) and data.readonly):
+                data = bytes(data)
             data = audioop.lin2ulaw(data, self._sampwidth)
         nframes = len(data) // self._framesize
         self._file.write(data)
diff -r 37c06d20dda5 Lib/test/audiotests.py
--- a/Lib/test/audiotests.py	Mon Oct 14 10:44:25 2013 +0300
+++ b/Lib/test/audiotests.py	Mon Oct 14 14:36:53 2013 +0300
@@ -139,6 +139,22 @@
 
         self.check_file(TESTFN, self.nframes, self.frames)
 
+    def test_write_bytearray(self):
+        f = self.create_file(TESTFN)
+        f.setnframes(self.nframes)
+        f.writeframes(bytearray(self.frames))
+        f.close()
+
+        self.check_file(TESTFN, self.nframes, self.frames)
+
+    def test_write_array(self):
+        f = self.create_file(TESTFN)
+        f.setnframes(self.nframes)
+        f.writeframes(array.array('h', self.frames))
+        f.close()
+
+        self.check_file(TESTFN, self.nframes, self.frames)
+
     def test_incompleted_write(self):
         with open(TESTFN, 'wb') as testfile:
             testfile.write(b'ababagalamaga')
diff -r 37c06d20dda5 Lib/wave.py
--- a/Lib/wave.py	Mon Oct 14 10:44:25 2013 +0300
+++ b/Lib/wave.py	Mon Oct 14 14:36:53 2013 +0300
@@ -426,9 +426,14 @@
         return self._nframeswritten
 
     def writeframesraw(self, data):
+        if not isinstance(data, (bytes, bytearray)):
+            data = memoryview(data).cast('B')
         self._ensure_header_written(len(data))
         nframes = len(data) // (self._sampwidth * self._nchannels)
         if self._convert:
+            if not (isinstance(data, bytes) or
+                    isinstance(data, memoryview) and data.readonly):
+                data = bytes(data)
             data = self._convert(data)
         if self._sampwidth > 1 and sys.byteorder == 'big':
             import array