Filtering is easy. Frequency shift is hard.<br><br clear="all">Christie<br><br>---<br>"I want us all to think about new and creative ways to engage young people in science and engineering, whether it's science festivals, robotics competitions, fairs that encourage young people to create and build and invent -- to be makers of things, not just consumers of things."<br>
<br> - President Obama in address to National Academy of Sciences April 27, 2009 <br>
<br><br><div class="gmail_quote">On Fri, May 22, 2009 at 1:19 PM, Andrew Cantino <span dir="ltr"><<a href="mailto:cantino@gmail.com">cantino@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Thanks Jean! But it sounds like this amplifies high frequencies, not down-shifts them to an audible range.<div><div></div><div class="h5"><br><br><br><div class="gmail_quote">On Fri, May 22, 2009 at 12:17 PM, Jean Rintoul <span dir="ltr"><<a href="mailto:jean.rintoul@gmail.com" target="_blank">jean.rintoul@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">I'm not sure if this is what you are looking for but it sounds a lot like it: <br><br>Jaycar Super Ear Kit: <br>
<a href="http://www.jaycar.com.au/productView.asp?ID=KA1809&form=KEYWORD&ProdCodeOnly=yes&Keyword1=KA&Keyword2=KA" target="_blank">http://www.jaycar.com.au/productView.asp?ID=KA1809&form=KEYWORD&ProdCodeOnly=yes&Keyword1=KA&Keyword2=KA</a><br>
<br>Only $27.95 AU! <br><br>Jean<br><br><div class="gmail_quote"><div><div></div><div>On Fri, May 22, 2009 at 11:58 AM, Andrew Cantino <span dir="ltr"><<a href="mailto:cantino@gmail.com" target="_blank">cantino@gmail.com</a>></span> wrote:<br>
</div></div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div><div></div><div>
Hey cyborg and electronics people,<br><br>My father is high-frequency deaf. He used to do a lot of bird watching, but he has trouble now since he can't hear some of the songs. I was just looking at this product: <a href="http://www.nselec.com/songfinder.html" target="_blank">http://www.nselec.com/songfinder.html</a>, but it costs $800. It seems to me it's just a band-pass filter for selecting the frequency range to augment, and then electronics to down-shift that range. It's been a long time since I did electronics. How hard would this be to build?<br>
<br>This might dove-tail nicely into augmenting frequency ranges that healthy ears can't hear as well.<br><br>Thanks everyone!<br><font color="#888888"><br>-Andrew<br>
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