Automated Lip Reading (ALR) is a software technology developed by speech recognition expert Frank Hubner. A video image of a person talking can be analysed by the software. The shapes made by the lips can be examined and then turned into sounds. The sounds are compared to a dictionary to create matches to the words being spoken.

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The technology was used successfully to analyse silent home movie footage of Adolf Hitler taken by Eva Braun at their Bavarian retreat Berghof.

The video, with words, was included in a documentary titled "Hitler's Private World", Revealed Studios, 2006

Source: New Technology catches Hitler off guard

• Articulatory speech recognition
• Audio-visual speech recognition
• Computational linguistics
• Facial motion capture
• Lip reading
• Silent speech interface

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