Google Audio Indexing is a Google tool that was launched in September 2008 in time for the American presidential elections. Since then, it has been scanning the videos of the YouTube political channel in search of the keywords that the user requests through the website: http://labs.google.com/gaudi ("gaudi" stands for G + Audi).
The new thing about this service is that it uses technology that recognises words by their phonetics (only in English at the moment) and takes you to the part of the video where the word or phrase you are interested in is played. Marks also appear in the development bar of the video where the word you are looking for is mentioned and if you place the cursor over the point, it shows you the entire paragraph in which the word is mentioned, without having to open the video.
As we can see from the URL, this service is still in Google Labs and has not been officially released to the web, although I hope it will be soon because it is very practical to use and allows you to easily handle the search for videos that are incorrectly labeled.
Although the service is currently limited to videos from YouTube's political channel, this technology is certainly worth considering when thinking about searches in the near future.
