A speech processing system includes a multiplexer that receives speech data input as part of a conversation turn in a conversation session between two or more users where one user is a speaker and each of the other users is a listener in each conversation turn. The EMAT includes a magnet configured to generate a magnetic field in an object and a radio frequency coil configured to induce eddy currents on a surface of the object. The member may further include a plurality of discrete holes formed in the bottom surface and at least one discrete opening formed in the top surface. The system may be fully automated responsive to feedback provided by a flow sensor that determines the estimated patient flow rate. Forming step forms space regulating members on edges of the substrate for regulating a space formed above the substrate in which the plate-like-shaped thin film member is freely movable.