Abstract
An estimation method of sound source direction on the binaural microphones system is studied. The head related transfer functions (HRTF) were measured using a dummy head at three dimensional positions and stored in computer. When a sound signal from an unknown direction is generated, the detected sound signals on the right and left ear can be used to regenerate the source signal using the HRTF. The correlation coefficient calculation between the regenerated sound signals on the left and the right ear are carried out for all measured HRTF. The maximum value of the correlation coefficient value among the directions can be recognized as the correct direction of the generated source.
