Consistency: "{\bf ...}" ==> "\strong{...}"
"{\em ...}" ==> "\emph{...}"
Not at all sure what to do with "{\rm ...}".
Leaving it for now.
diff --git a/Doc/lib/libaudioop.tex b/Doc/lib/libaudioop.tex
index fb6c944..b700155 100644
--- a/Doc/lib/libaudioop.tex
+++ b/Doc/lib/libaudioop.tex
@@ -133,7 +133,7 @@
\end{funcdesc}
\begin{funcdesc}{max}{fragment\, width}
-Return the maximum of the {\em absolute value} of all samples in a
+Return the maximum of the \emph{absolute value} of all samples in a
fragment.
\end{funcdesc}