No no. There is no spelling mistake in the title of this ticket. Google is not "to" listen to (whatever ... but that's another matter), but Google now has the ability to listen in terms of indexing. More specifically, it "simply" indexes, in videos or audio files, the content of these videos or files, "verbatim”. This service called Google Audio Indexing (Gaudi) this therefore allows the user to search "word for word" directly in those files. The experimental at the moment (it is still attached to the Google Labs) runs only on political speeches and videos of the contenders for the White House. This news is important because indexing audio is a crucial issue for those involved in information retrieval.