heated dummy head for memory foam on some headphones?

[skyfly]

Is there heated dummy head for measuring headphones with memory foam?

In my experience with Bose QC3 over-ear noise cancelling headphones, the noise cancelling improves after some time has passes since I put it on - noticed by my response to family members' calling me at home -. Probably the memory foam is getting heated and conforms to my ear shape better.

 

[staticV3]

Is there heated dummy head for measuring headphones with memory foam?

Yes there is. The GRAS 45CB is designed specifically for measuring the noise isolation of hearing protection.
It features a very low self insertion loss to accurately measure noise isolation and its pinna and ear canal can be heated to body temperature.

GRAS 45CB Acoustic Test Fixture

The GRAS 45CB Acoustic Test Fixture is specified and designed for measuring sound isolation of hearing-protectors and ear- and headphones according to the ANSI/ASA S12.42 standard. For testing in accordance with the ISO 4869-3 standard, choose GRAS 45CA.

www.grasacoustics.com