You can add a Voice Search Box to your site by adding a little Google Code. Try out the Live Demo Below. Google uses the speech input tribute x-webkit-speech which then transcribes the speech to text. Click on the microphone icon and speak into your microphone clearly.
You can download the source code from the link above. This Voice Search Box only works with Google chrome.
Local Business Website Design, SEO and Internet Marketing Blog
By "Shawn Lippert"