Patent ID: 7391876

Claim:
A method for simulating a 3D sound environment using at least one sound transducer, said method comprising: placing a dummy head having dummy left and right ears, pinnas and ear canals, in a selected acoustic environment; recording first and second head-related transfer functions HRTF sound data transmitted via said at least one sound transducer and received by said dummy head by first and second microphones; recording third and fourth HRTF sound data transmitted to said dummy head via a pair of headphones; recording fifth and fourth HRTF sound data transmitted to said dummy head via a third transducer; preparing transfer functions for left and right ear filters for each audio source channel by dividing, deconvolving or subtracting, respectively, first and second frequency representations of said sound data and said third, fourth, fifth and sixth sound data of each speaker, and introducing said left and right filters in a sound reproduction system between each audio source channel and two sound transducers connected to said system.