Inlargerlectureroomswherethelistenerssitmorethaneightmetersawayfromthespeaker,aspeechreflectingzoneshouldbeaddedtotheceilinginordertoensurethelecturersvoicecarriestothebackoftheroom.
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In larger lecture rooms where the listeners sit more than eight meters away from the speaker, a speech reflecting zone should be added to the ceiling in order to ensure the lecturers voice carries to the back of the room.