Access Technology - Now and Tomorrow

This Blog is my personal view of the development of technology for all. It reflects those technologies available today, and those that we should see in the immediate future.

Saturday, 6 March 2010

Putting YouTube AutoCaption Feature through its paces

I saw the announcement from YouTube that the initial trials of the machine genrated captions had been well received so they were making the service available to all users. Great timing, I was just working on completing my first videocasts for YouTube using xtranormal state to create a virtual animated AT show.

The AT show used a range of voices, some synthesised, a recording of me and the audio from embedded videos, So to be honest I wasnt expecting much. But I hate captioning so was willing to give it a go. The actual download of the machine generated caption file is really easy - just click on the option when you look at editting your video. 

The file that downloaded has a combination of timings and machine generated text. The timings are extremely useful and seemed about 90% accurate for matching to the on screen speech. The actual text is a mish mash of very accurate transcription and complete nonsense. But editting the existing file is a huge timesaver for me as opposed to creating the file from scratch.

I loaded the YouTube file into Magpie 2 the open source caption editor - all the timings loaded and I then editted each line as I played back my original video. The whole thing took me aboout 90 minutes to do the best part of 20 minutes of video - for me that is a huge time saving. 

Really importantly all the tools I needed were free and were really easy to use - which for a man of little brain like myself is a major asset. 

Have a look at the final productions below 

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