The characteristics that influence the effect of noise on task performance include:
Intensity: The loudness or strength of the noise affects how disruptive it is.
Predictability: If the noise occurs at regular intervals or is expected, it is less likely to affect performance.
Controllability: The ability to control or stop the noise can reduce its negative impact on performance.
However, luminance refers to the brightness of light, not a characteristic related to noise, and therefore does not influence the effect of noise on task performance.