Nisam pronašao dosta referenci, ali možda će vam ove pomoći:

"Dubbing theater: A special studio where music is blended with dialog and sound effects for the final soundtracksound track. A dubbing theater is actually a small movie theater, with a large screen and full theater surround system....."

http://www.dilettantesdictionary.org/index.php?search=1&sear...

"Osim rada u muzičkom studiju, studentima je dostupan i studio za obradu zvuka na filmu: sala za montažu i miks sala koje raspolažu monitorskim sistemom 5.1 JBL serije 3000, Yamaha 02R digitalnim režijskim stolom i višekanalnim snimačima..."

http://www.myspace.com/katedrazasnimanjeidizajnzvuka

"Osim rada u "muzičkom" studiju, studentima stoji na raspolaganju i studio za obradu zvuka na filmu, sala za montažu i miks koja raspolaže monitorskim sistemom okružujućeg zvuka."

http://www.akademijaumetnosti.edu.rs/index.php?option=com_co...

S obzirom na to kako izgleda (pogledati ovde http://www.360spin.co.uk/3sixtyMedia/DubbingTheatreA.htm ) ja bih pre rekla

- studio za miks (miksovanje) zvuka.

Inace, postoji Oskar nominacija za tu kategoriju http://oscar.go.com/ - sound mixing, kod nas se prevodi - miksovanje zvuka http://www.vesti.rs/Kultura/Oskari-The-Hurt-Locker-osvojio-s...

Nadam se da sam pomogla.

mislim da ovo pokriva definiciju:

dubbing theater: Also called a dub stage. A special studio where music is blended with dialog and sound effects for the final soundtracksound track. ....The screen hangs in a theater equipped with the mixing console which controls the sounds played back by all the dubbers, other prerecorded sources, and the sounds being recorded in the studio.The theater itself is designed to approximate the acoustics of a public cinema. Also called mixing studio, re-recording studio, re-recording stage, or theater.