Hi Emil,
Thank you for the great description of your case. I think we might be using an adapted version of your design in our study.
I have a question regarding the acoustic membrane. The company has agreed to sell a smaller sample of <1000 units, however has told me the model you suggest in your link ( #M007 ) doesn't let sound through. Instead, he recommended models #SA016 or #SA128. Attached you can see their performance summary sheet. Any insights as to what might be going on with the different membranes?
Cheers,
Thomas
Cheers,
Thomas