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Consumer Electronics by S. P. Bali

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DEAD ROOMS

The dead room is characterised by the high degree of sound it absorbs. If the walls were totally absorbing, all the sound would be lost since no waves would be reflected. Thus a totally absorbent room would not only attenuate the wall-to-wall reflections but would also reduce the room's normal mode of resonance. An over-damped (dead) room wastes any acoustic power produced in it.

In a dead room, the system's high-frequency distribution depends solely on the loudspeaker and baffle combination. If the speaker's high-frequency beam is sharp, the listener's position in the room will determine how many highs and how much of them will be heard. For the low frequencies, the dead room exhibits fairly uniform distribution characteristics with ...

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