Add notes about the linuxaudiodev and ossaudiodev modules.
diff --git a/Doc/lib/libundoc.tex b/Doc/lib/libundoc.tex
index 71496d2..7a20ec2 100644
--- a/Doc/lib/libundoc.tex
+++ b/Doc/lib/libundoc.tex
@@ -61,12 +61,20 @@
\item[\module{audiodev}]
--- Platform-independent API for playing audio data.
+\item[\module{linuxaudiodev}]
+--- Play audio data on the Linux audio device. Replaced in Python 2.3
+by the \module{ossaudiodev} module.
+
\item[\module{sunaudio}]
--- Interpret Sun audio headers (may become obsolete or a tool/demo).
\item[\module{toaiff}]
--- Convert "arbitrary" sound files to AIFF files; should probably
become a tool or demo. Requires the external program \program{sox}.
+
+\item[\module{ossaudiodev}]
+--- Play audio data via the Open Sound System API. This is usable on
+Linux, some flavors of BSD, and some commercial \UNIX{} platforms.
\end{description}