"La Chambre D'Echo" - Where the dead Birds sing is the eighth album by darkwave band Sopor Aeternus & the Ensemble of Shadows, and was released in 2004. "La Chambre D'Echo" saw the return of synthesizers and drum machines, while still focusing on chamber music-inspired darkwave music. John A. Rivers returned to produce the album alongside Anna-Varney Cantodea. An accompanying EP, "Flowers in Formaldehyde", was released later that year. The album was introduced and promoted via a promotional video.