Google is coming with a new technology: Audio Indexing that will allow users to search videos based on the spoken words inside videos.
This will help users to better search and watch videos from YouTube and other video channels.
This technology is very much required in today’s world where more and more video content is being created everyday.
Google has recently also launched ‘Google Elections Video Search gadget’. With this gadget you can search for certain contents in a video. This gadget was very widely used in recent US elections.
Google Audio Indexing is not very much different from the Google Elections Video Search gadget. Both use the same underlying technology.
How do we use it?
With Google Audio Indexing, you can use speech technology to find videos and to search for spoken content inside a video.
The below image highlights some important features.
GAudi
Searching for videos
To find a set of videos, simply type a query in the search box and press the “Search videos” button. The results of your search will appear in the left column. You can refine your search using channel filters, the active filter showing in bold. A channel filter corresponds to one or more YouTube channels. In the context of the US election, you can choose videos from the McCain channel, the Obama channel or from all YouTube political channels. For each result, we provide a thumbnail of the video, its title, the time since it was published, the duration and the number of times the query terms are mentioned (i.e. spoken) in the video. By clicking on a result, the video will be displayed in the right column.
Watching a video
Once you have selected a video, it will appear on the right side of the screen, in the embedded YouTube player, with the list of mentions.
Google Audio Indexing enhances the YouTube player to display mentions of the query terms as yellow markers on the player timeline. For space reasons, we cannot always display all the mentions on the timeline. The top 10 mentions are displayed as a list under the player.
To read the transcript for a given mention, just mouse over the corresponding yellow marker. To listen to the corresponding audio, just click on the marker: the player will automatically jump to the right time in the video. You can also click on the play button located on the left side of the mention.
Searching inside a video
With Google Audio Indexing, you can also restrict your search to the content of a given video. By default, the “Search inside this video” uses the same query term as the video search.
To search for a different term, just type your query in the text form under the video player and press the “Search within this video” button. The mention results are displayed underneath. The yellow markers on the timeline are updated accordingly and you can access the information just like before, using mouse over.
How does it work?
Google Audio Indexing uses speech technology to transform spoken words into text and leverages the Google indexing technology to return the best results to the user.
The returned videos are ranked based — among other things — on the spoken content, the metadata, the freshness.
Google periodically crawl the YouTube political channels for new content. As soon as a new video is uploaded to YouTube, it is processed by our system and made available in our index for people to search.
What video content can I search?
Google Audio Indexing searches only those videos uploaded on the YouTube political channels. If a video is on the YouTube political channels, it will be in the index.
Candidates control the video content released to the public using Google Audio Indexing technology by controlling the content they upload to YouTube channels.
I would like my content to be “speech-searchable”, what do I do?
All served videos come from YouTube channels. You should first upload your content to YouTube.
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