Weber’s law holds for noise intensity discrimination above about 20 dB SL

Evidence

Weber’s law held for noise at moderate-to-high levels. That is, the function relating DL to dB SL was a straight line, as long as sound levels were above about 20 dB SL. We observe no change in the Weber fraction as the stimulus level increases. — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 816