Intelligent sound field tuning system for home theater systems

In this paper, we propose an intelligent sound field tuning system for home theater systems that includes room acoustic compensation and additive artificial sound field processing. Room acoustic compensation is performed based on the information about room transfer characteristics measured by a three-channel microphone array. With a three-channel microphone array, we estimate the exact angular position, distance, level, and frequency response of loudspeakers. Using this information, the proposed system can compensate the degradation induced by non-ideal loudspeaker arrangement with virtual loudspeaker positioning and binaural energy level alignment algorithm. After room acoustic compensation, additive artificial sound field processing is performed for more realistic spacious impression. For artificial sound field processing, directional impulse responses are measured in real acoustic space by three-channel microphone array.