It has been known for ages that humans are subject to a circadian rhythm, a daily cycle that affects how our bodies and minds work at different times of day and night. I would not find it surprising at all that our perception of sound is also subject to this pattern, though the result and reaction would probably not be the same for different individuals.
Speakers sound brighter at evening / night?
I don't know if anyone has noticed this or studied time of day and perception of sound. But for me, I've found in darker environment especially at night my speakers all sound brighter? A few other hypothesis:
1. Power is different at night
2. My ear is different at night
3. Lighting is affecting perception of sound
4. https://www.prnewswire.com/news-releases/the-human-brain-is-sensitive-to-light-breakthrough-findings...
"The study shows that we have brain cells that react to light when exposed directly. These results are encouraging, especially for bright-light therapy channeled via ear canal direct to brain tissue", summarized professor Seppo Saarela, PhD, head of the biology department and leading the research at the University of Oulu.
1. Power is different at night
2. My ear is different at night
3. Lighting is affecting perception of sound
4. https://www.prnewswire.com/news-releases/the-human-brain-is-sensitive-to-light-breakthrough-findings...
"The study shows that we have brain cells that react to light when exposed directly. These results are encouraging, especially for bright-light therapy channeled via ear canal direct to brain tissue", summarized professor Seppo Saarela, PhD, head of the biology department and leading the research at the University of Oulu.