Combining lmodern and tipa

Question

When I use tipa and lmodern in the same document, I always get a couple of font substitution warnings. The document looks fine, though. Is there any way around this?

Minimal example:

\documentclass{article}
\usepackage{lmodern}
\usepackage[]{tipa}
\begin{document}
\textesh
\end{document}

pdflatex output:

test.tex|| LaTeX Font Warning: Font shape `T3/lmr/m/n' undefined

test.tex|| LaTeX Font Warning: Some font shapes were not available, defaults substituted.

EDIT: See Filtering font substitution warnings caused by the combination of lmodern and tipa if latex crashes when you try Seamus' solution.

Answer 1

Leo Liu's answer says that you can safely ignore them. This answer is a complement to that answer. It tells you how to safely ignore them. (And it borrows heavily from Stefan Kottwitz's answer to an earlier question of mine)

You can use the silence package to turn off warnings from the appropriate package. So

\WarningFilter{latexfont}{Some font}
\WarningFilter{latexfont}{Font shape}

should turn off those warnings.

Answer 2

The warnings are harmless, and the substitutions will happen automatically. If you want to get rid of the warning you could redefine the \textipa command and the IPA environments to always use Computer Modern as shown in the example below. If you decide later to change to using e.g. mathptmx then you would need to change the definition of \tiparmdefault to use ptm instead of cmr.

\documentclass[12pt]{article}

\usepackage{lmodern}
\usepackage[T1]{tipa}
\newcommand\tiparmdefault{cmr} % needs to be ptm if using mathptmx
\renewcommand{\textipa}[1]{{\fontencoding{T3}\fontfamily{\tiparmdefault}\selectfont#1}}
\renewenvironment{IPA}{\fontencoding{T3}\fontfamily{\tiparmdefault}\selectfont}{}

\begin{document}

\textipa{\textesh HGTR}
\begin{IPA}
\textesh
\end{IPA}

Note that in your example, you used an IPA defined character without enclosing it in \textipa or an IPA environment. Even with this solution, doing that will still give rise to the warning.

Answer 3

You can ignore it safely.

Latin Modern fonts have no T3 encoding support. Since Latin Modern families come from Computer Modern fonts, it will works fine combining LM fonts with CM IPA fonts in T3 encoding.