[Skandha]

@lbourgeois: Hello there,
For that Go to => Child Theme Folder => functions.php

Search for the code echo isset( $post_type->labels->singular_name )

Now replace that whole line of code by the following

if( 'jetpack-portfolio' == get_post_type() ) { 
	echo  $before . esc_html( 'Pictures and Videos', 'audioman-pro' ) . $after;
} else { 
	echo isset( $post_type->labels->singular_name ) ? $before . esc_html( $post_type->labels->singular_name ) . $after : '';
}

Now the Project text should show up as Pictures and Videos.

Let me know if this works out!
Kind Regards,
Skandha