I’m having a hard time believing this one, but apparently, the newly launched Podscope searches the audio content of podcasts for specific keywords. From their FAQs:
What is Podscope?
Podscope is the first search engine that actually allows you to search for spoken words within any audio or video file. We’re starting with podcasts and will be adding all types of multimedia in coming months.
How does it work?
Just like any other search engine. You enter a word or phrase in the input box, and we’ll show you a list of results. By clicking on the (+) sign next to each result, you can select snippets of audio to help you decide whether to listen to the whole podcast or even subscribe. If you know about Search Inside the Book, that’s what we do for audio/video.
No, I mean how does the technology work?
Well, we could tell you, but then we’d have to… Um, magic.
… makes Radio & TV searchable by keyword, phrase or topic – just as you would use a search engine for text. With a fast growing network of stations monitored worldwide, TVEyes provides the technology and the content.