As the opera hall in Toulouse was under construction, the operas had to be staged in other venues in Toulouse. One of them was the hall of the Casino Théâtre Barrière for Rossini's opera “Il Viaggio a Reims”. As the acoustics of the hall was very dry, the reverberation was enhanced using MCR (Multiple Channel amplification of Reverberation). By using this proper opera acoustics was obtained. One comment of a staff member of the opera company was that they would have this system available at all their performances.