An Israeli startup called VocalZoom wants to examine skin to comprehend what we say. When we talk, the skin on our faces makes subtle vibrations too slight to be noticed by the naked human eye. While experimenting with an instrument known as an interferometer, VocalZoom CEO Tal Bakish and his team noticed it could detect peculiar measurements. “When it measures the face, we found out that the vibrations were caused only by the speaker’s voice and were not affected at all by any background voice. At this point we realized that we have a disruptive technology to extract the voice of speaker in any noisy condition.