NOISE_FLOOR_OFFSET 1142 libavcodec/aacsbr.c                 float temp1 = exp2f(NOISE_FLOOR_OFFSET - sbr->data[0].noise_facs[e][k] + 1);
NOISE_FLOOR_OFFSET 1170 libavcodec/aacsbr.c                         exp2f(NOISE_FLOOR_OFFSET - sbr->data[ch].noise_facs[e][k]);