1.0Degertekin Group|Georgia Techhttps://mist.gatech.edu/wordpressrich600338<blockquote class="wp-embedded-content" data-secret="AtOfZSNwUL"><a href="https://mist.gatech.edu/wordpress/research/microphone">Optical Microphone</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://mist.gatech.edu/wordpress/research/microphone/embed#?secret=AtOfZSNwUL" width="600" height="338" title="“Optical Microphone” — Degertekin Group|Georgia Tech" data-secret="AtOfZSNwUL" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /* <![CDATA[ */ /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); /* ]]> */ </script> Optical Microphone Microphones come in many different variations and are often classified in terms of their transudation mechanisms and their directional properties. The focus of current research combines an optical displacement detection scheme with a unique design for achieving directionality. The diffraction based optical detection method has been incorporated into this directional microphone using an+ Read Morehttp://mist.gatech.edu/wordpress/wp-content/uploads/2012/11/image032.gif