Displaying current Custom Taxonomy title in archive.php

I’m trying to show the name of the currently selected Custom Taxonomy within the archive.php template – basically something similar to the Category title in category.php:

<?php printf(single_cat_title( '', false ) . '' ); ?>

Is this possible? The current taxonomy name appears in the site <title> and is highlighted in the menu as active, so it must know what it is.

Thanks!