The washer trick

At your risk. Take all safety precautions.


A diamond ring can be made from a hexagonal nut:
Pablo Cimadevila
https://m.youtube.com/watch?v=MgnlbDVuPdg#fauxfullscreen
<br />
<br />
<br />
If you can dream it you can do it - Walt Disney


Can a great microphone filter that makes singing voice sound like a polished diamond be made with a plain iron washer?


Something that sounds like:
When I Fall in Love - Nat King Cole
?


Something that does does not need almost any specialized tool for its making?


If you can dream it you can do it - Walt Disney


But the real trick is doing it without having a price to pay. Without loosing your freedom. Without anyone imposing to you on what to do. Possible [Epictetous]


One, two or three washers can be used on top of each other. If they are made from magnetic permeable material such as iron then less wire turns are required.


After many turns of thin insulated wire are wound, one or two resistors of small physical size can be connected in series.


The total connected to pins 2,3 ie signal output of microphone. The total can fit inside a Neutrik module XLR female to male adapter. See Pleiades (R,L) filter with Neutrik modules, color stripe.


It is a gentle slope R,L wave filter creating a gentle slope high pass music signal filter.


A Pleiades (R,L) filter.



Increasing turns of wire increases bass, increasing total resistance of circuit reduces the slope of the frequency response.


For the importance of flat frequency response from record producer's brain to listener's brain see Lowe, Morgan or Hilliard papers.


References:


Enchiridion - Epicteous - PDF


Sound Picture Recording and Reproducing Characteristics - D. P. Lowe, K. F. Morgan - journal of the society of motion picture engineers


A brief history of early motion picture sound recording and reproducing practices - John K. Hilliard - journal of Audio Engineering Socity , vol 33, no 4, April 1985