Sound familiar?
Automatic, Real-time close captioning/translation for flickr videos.
How?
We captured the audio stream that comes out to speaker and gave as input to mic. Used Microsoft Speech API and Julius to convert the speech to text. Used a GreaseMonkey script to sync with transcription server(our local box) and video and displayed the transcribed text on the video. Before displaying the actual text on the video, based on the user’s choice we translate the text and show it on video. (We used Google’s Translate API for this).
Check out the whole post.