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???
03/19/06 20:04
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#112509 - try?
Responding to: ???'s previous message
I am a little afraid to say this not to make a bad advice, but is there anything that can go terribly wrong if you simply try?
I'd start with finding suitable earpiece and microphone and for start put simply a linear amplifier, then perhaps play with filters. Later you can move on to DSPs, but that'll need some theory (not only signal processing but medical too). And then think on the power consumption. I think this is the way the hearing aids developed during the times anyway.

The ready made product is - besides others - a medical equipment so it's probably subject to stringent testing (-> lots of money, too).

JW


List of 48 messages in thread
TopicAuthorDate
Digital Hearing Aids            01/01/70 00:00      
   What do you want to know?            01/01/70 00:00      
      Custom            01/01/70 00:00      
         Tell me more            01/01/70 00:00      
            Sorry            01/01/70 00:00      
               try?            01/01/70 00:00      
                  VALVES            01/01/70 00:00      
                     ...and the earphones...            01/01/70 00:00      
            Here we go            01/01/70 00:00      
               Thank you            01/01/70 00:00      
      How does it work            01/01/70 00:00      
         HYbrid            01/01/70 00:00      
         my dads aid            01/01/70 00:00      
            Sorry            01/01/70 00:00      
      Hearing aid chips            01/01/70 00:00      
         Grant, I saw your location            01/01/70 00:00      
            Swallows            01/01/70 00:00      
               not the cacti, it is wildflowers            01/01/70 00:00      
   Link moved Zarlink            01/01/70 00:00      
   Digital Hearing Aids            01/01/70 00:00      
      Thats right            01/01/70 00:00      
      Ahem            01/01/70 00:00      
         My point!            01/01/70 00:00      
            Power            01/01/70 00:00      
               I don't think so            01/01/70 00:00      
                  Really ?            01/01/70 00:00      
                     Maybe            01/01/70 00:00      
                        NOT ear mounted            01/01/70 00:00      
      There goes the plan            01/01/70 00:00      
   As expensive as gold...            01/01/70 00:00      
      On Hold            01/01/70 00:00      
      don't scare him            01/01/70 00:00      
         as so often before the one thing not men            01/01/70 00:00      
            I thought he wants to make it for himsel            01/01/70 00:00      
               I do not think so            01/01/70 00:00      
         Cosmic technology            01/01/70 00:00      
            bah            01/01/70 00:00      
               Exactly!            01/01/70 00:00      
                  That would be trying to kill an elephant            01/01/70 00:00      
               How about            01/01/70 00:00      
                  Phoning            01/01/70 00:00      
                     Affirmative            01/01/70 00:00      
                        Alternative            01/01/70 00:00      
                           phone "adapter"            01/01/70 00:00      
               comfort noise            01/01/70 00:00      
                  Noise reduction            01/01/70 00:00      
   Digital hearing aids            01/01/70 00:00      
   Phones            01/01/70 00:00      

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