Do materials alter frequencies and speed?

What is the resonant frequency of earwax

:>)Dunno, but there's a pole s/where around 15kHz if I remember correctly. With your "direct-line" method, maybe we can dispense with the riaa correction altogether...

When the Audioligist fitted my wife for hearing aids, the first thing she did was to measure the acoustic characteristics of the ear canal. This was factored in to the algorithm programmed into the devices.

I posted that question hoping to draw some of the snipers in the thread. In reality the acoustic characteristics of the canal vary widely and the artifacts of residual cerumen do alter the mechanical feed to the tympanic membranes. The membrane and 3 bones(incus,stapes and malleus) send the vibrations to the hair cells of the cochlea. At this point the mechanical energy is converted to electrical impulses that the cochlear nerve supplies to the brain(Broca's area).
What arrives at the brain is influenced at each of these junctures. Do clean ears optimize sound... I think yes! Should your audio system be tuned to compensate for inconsistencies in tympanic output(confirmed by audiogram)...I don't know. Would any of this standardize the listening experience? Tweaks for rooms, cables, electronics and speakers are de riguer. Should we tweak the organic end of the system as well?
Next week, sound modeling in the middle and inner ear and do the Eustachian Tubes control porting in your head.

Alright already! Let's let this one die!

Sam here and if the sound of warm analog tone is your pleasure than you need to make a set of cables out of shungite and 100% solid african mahogany wood. The wood must be soaked for 24 hours in distilled shungite water and then dried in the sun for several days. Shungite rock is a natural conductor of electricity and combined with the dried wood creates a tone that can’t be touched by other sunstances although cornflake saphire powder comes damn close.