Harman Kardon ENCHANT 1300 Owners Manual English - Page 6

Fig.6 illustrates the difference between the traditional calibration methods and AMC. Traditional Room Correction Automatic MultiBeam Calibration Audio Device Room Correction System Listening Location (Sweet Spot) Listening Location (Sweet Spot) Fig.6 Although the microphone is not at the listening location (sweet spot), AMC can still collect acoustical information to correct the conditions of the room environment. After processing with the microphone signal, it transforms to a response of loudspeaker-room system. AMC measures the arrival times of the room reflections. Each room reflection arrives at the microphone on different times and then are separated, classified and analyzed. Then, the reflections are reconstructed to estimate the surround sound performance at a specific listening area. Although its target is an estimated result, it is a practical approximation derived from the sizes of typical consumers' home theater. Finally, AMC uses a set of filters to correct the loudspeaker EQ, so the soundbar sound performance can be consistent, without the dependence on the room. HK_MultiBeam_White Paper_V1.0_01062018