Towards an active semi-anechoic room: simulations and first measurements Cédric Pinhède, Romain Boulandet, Emmanuel Friot, Mark R. Allado, Renaud Côté and Philippe Herzog Acta Acust., 8 (2024) 56 Published online: 18 October 2024 DOI: 10.1051/aacus/2024052