Is the era of artificial speech translation upon us?

Is the era of artificial speech translation upon us? Once the stuff of science fiction, technology that enables people to talk using different languages is now here. But how effective is it? Noise, Alex Waibel tells me, is one of the major challenges that artificial speech translation has to meet. A device may be able to recognize speech in a laboratory, or a meeting room, but will struggle to cope with the kind of background noise I can hear in my office surrounding Professor Waibel as he speaks to me from Kyoto station in Japan. I’m struggling to follow him in English, on a scratchy line that reminds me we are nearly 10,000 kilometers apart-and that distance is still an obstacle to communication even if you’re speaking the same language, as we are. We haven’t reached the future yet. If we had, Waibel would have been able to speak more comfortably in his native German and I would have been able to hear his words in English. At Karlsruhe Institute of Technology, where he is a professor of computer science, Waibel and his colleagues already give lectures in German that their students can follow in English via an electronic translator. The system generates text that students can read on their laptops or phones, so the process is somewhat similar to subtitling. It helps that lecturers speak clearly, don’t have to compete with background chatter, and say much the same thing each year. The idea of artificial speech translation has been around for a long time. Douglas Adams’ science fiction novel, The Hitchhiker’s Guide to the Galaxy, published in 1979, featured a life form…