diff --git a/Lib/aifc.py b/Lib/aifc.py
index 11dcfe564db..653dac92260 100644
--- a/Lib/aifc.py
+++ b/Lib/aifc.py
@@ -515,7 +515,7 @@ def _read_comm_chunk(self, chunk):
 		self._nchannels = _read_short(chunk)
 		self._nframes = _read_long(chunk)
 		self._sampwidth = (_read_short(chunk) + 7) / 8
-		self._framerate = _read_float(chunk)
+		self._framerate = int(_read_float(chunk))
 		self._framesize = self._nchannels * self._sampwidth
 		if self._aifc:
 			#DEBUG: SGI's soundeditor produces a bad size :-(
diff --git a/Lib/sunau.py b/Lib/sunau.py
index 7ce74b5c267..17fa60d4301 100644
--- a/Lib/sunau.py
+++ b/Lib/sunau.py
@@ -254,7 +254,7 @@ def readframes(self, nframes):
 			if nframes == AUDIO_UNKNOWN_SIZE:
 				data = self._file.read()
 			else:
-				data = self._file.read(nframes * self._sampwidth * self._nchannels)
+				data = self._file.read(nframes * self._framesize * self._nchannels)
 			if self._encoding == AUDIO_FILE_ENCODING_MULAW_8:
 				import audioop
 				data = audioop.ulaw2lin(data, self._sampwidth)