Listener Age Gender EAR Threshold(1kHz) Threshold(4kHz) h1 87 male left 50 NaN h2 84 male right 60 NaN h3 79 female right 50 60 h4 64 male left 60 70 h5 74 female right 35 65 h6 57 male right 50 NaN h7 65 female right 35 35 h8 40 female left 55 70