Geometrical acoustic simulation is time consuming and can only achieve fixed impulse responses. A new system to create binaural impulse responses, whose acoustical characteristics can be arbitrarily specified, is proposed. Psychologically important parameters such as reverberation time, clarity index and inter-aural cross-correlation can be independently and significantly controlled. The fundamental procedures to realize this system are described. Simulation experiments were conducted to verify the availability and effectiveness of the algorithm.
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