function my_theme_archive_title($title)
{
    if (is_category()) {
        $title = single_cat_title("", false);
    } elseif (is_tag()) {
        $title = single_tag_title("", false);
    } elseif (is_author()) {
        $title = '<span class="vcard">' . get_the_author() . "</span>";
    } elseif (is_post_type_archive()) {
        $title = post_type_archive_title("", false);
    } elseif (is_tax()) {
        $title = single_term_title("", false);
    }

    return $title;
}
add_filter("get_the_archive_title", "my_theme_archive_title");