XPost: comp.misc   
   From: mds@bogus.nodomain.nowhere   
      
   Adrian Caspersz  writes:   
      
   > On 19/04/17 12:05, geoff wrote:   
   >   
   >> Kind of depends if you want headphones for high quality sound, or as a   
   >> fashion accessory.   
   >   
   > Or as a covert DIY hearing aid ..   
   >   
   > The future is going to see them rather prominent and fashionable like   
   > eyewear, and additionally integrated with the music/phone (possibly that   
   > made the user deaf in the first place[1]).   
      
   AFAICT the circuit design and tuning controls are sophisticated,   
   albeit straigtforward, electronics but the big bucks are for fitting   
   all that into a widget the size of a fava bean.   
      
   I'd be happy to wear headphones or earbuds and carry a widget the size   
   of a large cell phone if it worked for my hearing loss and cost a few   
   hundred bucks instead of the ca. $2,000 per ear.   
      
   > On that subject, like a prescription for glasses, is there a written   
   > standard of writing one for hearing aids?   
      
   Bandwidth tuning, noise cancellation -- what else?  See   
   "sophisticated" supra.  I'm guessing that "adjusting" a modern hearing   
   aid is done by connecting it to a computer and proprietary software.   
   They're too small to support an array of little adjusting screws.   
      
   > With the rip-off shameful high cost of some of these (thousands) praying   
   > on folks that want them so covert, surely a home build DSP project   
   > (opensource?) is possible with knowledge of the right parameters? or use   
   > of a cheaper Generic device for sale?   
      
   Where's this happening?  I high-frequency loss, speech discrimination   
   loss and tinitis.  But I'm weak on serious math and know almost noting   
   about electronic hardware.  There was a brief flurry of interest in   
   DSP projects in Halifax (NS) circa 1994 but I think it's faded away.   
      
      
   > [1] - Shouldn't joke. That will eventually be me.... Loud electronica   
   > music fan here.   
      
   Wroking around loud engines, running power tools and hammering at the   
   anvil are quite enough, thanks, without rock n' roll.   
      
   --   
   Mike Spencer                  Nova Scotia, Canada   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)