I consider the Wave Shield to be a learning tool. I doubt that I will=20 find as serious use for it. It takes a while to learn to use hearing aids. They are seldom=20 comfortable and a useless encumberence for a matter of days to weeks.=20 Fortunately if one persists, the brain will figure out what it can do=20 with them. People who don't wear them all the time never give their=20 brains a chance to adapt. In my case the lows just turn everything to=20 mush. I can tune the church audio systems up to where us old folks can=20 hear pretty good but the fellow that takes care of the equipment on a=20 regular basis says it sounds terrible! Unfortunately, Neither Mackie or=20 Behrenger make miniature modules... I think I have a couple of stereo audio chips in stock to try first. I=20 am undecided about mic's, I may need to wear a ball cap for testing.=20 When I passed my 70 th birthday I decided to abandon convention and=20 dress comfortably. Cargo pants/shorts are the rule, not the exception. So much to do and so little time left to do it! On 1/7/2013 10:37 PM, Josh Koffman wrote: > On Mon, Jan 7, 2013 at 11:47 AM, John Ferrell w= rote: >> I have been studying DSP for quiet a while now with little success. I >> need to do a little lab work if I am ever going to grasp the basics. In >> my search for usable hardware I recently found a setup that allows >> signal access to the interface between an AD and the DAC. It is intended >> to be used with the Arduino Uno but should be adaptable to any >> interface. It is available from ladyada.net as a kit for about $22. I >> have seen it called "audio Shield" and "wave Shield". I have mine built >> but not yet tested due to personal ADHD & other distractions. It would >> be best for one to get the specs & info from LadyAda. > I found the Wave Shield. Seems interesting for audio output, but I'm > not sure it would be able to support what I'm looking for. I will keep > investigating though! > > I have found a guitar stompbox project with a small DSP in it. It > seems interesting but it (and a few others like it) seems to be > limited to usually one in and one out. > >> I wear hearing aids which are expensive and not really as good as they >> could be. I ordered Logitec earbuds for my laptop so I could watch the >> Videos without disturbing others. I am amazed at how much better I hear >> that way. Quality Earbuds beat $4000.00 hearing aids. It would be nice >> to have a multichannel equalizer included but for now I am planning a >> simple stereo amp in my shirt pocket. Mic's probably on glass frames. >> People don't really notice earbuds thanks to all the youth running >> around using the... >> BTW, hearing aids don't even try above 8 khz. > That doesn't surprise me too much. I read that one of the main things > we lose as our hearing diminishes is selectivity. Our ear/brain combo > is quite good at filtering out background noise and deciding to focus > on a specific source amidst other competing sounds. With hearing aids, > it doesn't work as well. I would be interested to hear about how it > goes when you do get your stereo amp -> earbuds working. If I was in > your shoes, I start by experimenting with some non portable, stock > equipment, just to see how it goes before you build something you can > carry yourself. > > Josh --=20 John Ferrell W8CCW That which can be destroyed by the truth should be. P.C. HODGELL =20 --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .