1. A soundproof room used for recording movies or TV productions
   "The action scene was filmed on a large soundstage to control the lighting and acoustics";
   - sound stage
    
2. The listening area from audio speakers and the apparent 3D size and position of the sound source
   "The new speakers created an impressive soundstage, making it feel like the orchestra was right in the room";
   - sound stage

Derived forms: sound stages, soundstages

Encyclopedia: Soundstage