By some estimates our sensory bandwidth is near 90% for vision and perhaps 9% for hearing. All the others are far less. I wonder if a dog, since it sees like a red-green color blind human with weaker color representations and about 1/4th the visual acuity devote more sensory bandwidth to hearing and smell in which case like wombat says dog normality. Dogs do see better in low light levels than humans. Just not much detail.