Do human ears perceive less bass in the mornings?
I make music on the train during my work commute every day, and over the past few years have detected and continually observed an interesting audio phenomenon.
When listening to the same projects in the morning (on the way to work) and around 5.30pm (on the way home) I can clearly detect a big difference in my ears' ability to hear the low frequencies in the track.
In the mornings it sounds like there are a few dB cut in the lower registers, and this seems to normalise throughout the day, so that I hear beautifully rich (if not bloated) bass after a full day's work.
Does anyone else have experience or knowledge of why this might be? Hopefully it's not an early indication of the onset of deafness.
Some details about me (in case you are wondering if it's all my own fault):
- late 30s
- I always take care of my hearing (avoiding excessive loudness)
- I mainly use good quality IEM earphones
- I have a relatively quiet office job