Corrected docstrings of audio modules. writeframes() accepts bytes, not str.
diff --git a/Lib/sunau.py b/Lib/sunau.py
index e760093..0473e9e 100644
--- a/Lib/sunau.py
+++ b/Lib/sunau.py
@@ -97,7 +97,7 @@
be patched up.
It is best to first set all parameters, perhaps possibly the
compression type, and then write audio frames using writeframesraw.
-When all frames have been written, either call writeframes('') or
+When all frames have been written, either call writeframes(b'') or
close() to patch up the sizes in the header.
The close() method is called automatically when the class instance
is destroyed.