From: charlesandmilly@gmail.com   
      
   On Sunday, July 31, 2022 at 1:59:49 PM UTC-5, vjp...@at.biostrat   
   gist.dot.dot.com wrote:   
   > I concur in your befuddlement. I bought tons of 2.5mm 3-pole headsets   
   > (which I also use on land line phones profusely) and have not been able to   
   > convert them to 3.5mm 4-pole "apple" jacks. I have bought about en different   
   > adapotrs and none worked.   
      
   Here is the function of a 4 pole jack (for audio):   
      
   4 conductor plug (TRRS)   
      
   Common Usage: It is the most commonly adopted standard for modern   
   smartphones and gaming consoles where the cable supports a microphone   
   and stereo audio connection at the same time.   
      
   A TRS is often though of as stereo, as the addition of the ring gives us two   
   contacts allowing us a left and right audio channel. Finally, a TRRS cable is   
   usually going to include both a left and right channel as well as a microphone   
   channel.   
      
   Click on this link for a better description (more specific) to the correct   
   wiring:   
      
   https://electronics.stackexchange.com/questions/316322/headphone   
   -volume-controls-do-not-work-after-4-pole-jack-repair   
      
   I sincerely hope this helps.   
      
   Good luck.   
      
   Sincerely,   
      
      
   Charles Lucas   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)