talkinggoat
Member
i'm looking for a way to cancel out the sound exiting from a room into a hallway. the room is a sensitive area and i would like to keep people from hearing what is going on inside. are there any commercial products that i can buy to accomplish this task.
i was thinking of placing a microphone just inside the door with the speaker just oiutside.
does anyone know where to start?
i was thinking of placing a microphone just inside the door with the speaker just oiutside.
does anyone know where to start?