In this paper we describe speech processing in the Bremen ambient assisted living lab (BAALL); how it is currently and how it can be improved in the future with the implementation of Machine Translation (MT) technology. Multimodal humanmachine interfaces (HMI) are not only preferred by the elderly and people with cognitive or physical impairments, but in many cases speech or touch interaction is the only option. We are experiencing the aging population phenomenon today and thus living in a

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... autonomous, independent, and convenient way in a domestic environment is desired more than ever. Pervasive computing is regarded as the next generation of computing and multimodal interfaces are indeed pervasive today. We argue for multilinguality in assisted living environments by means of development of a speech to speech translation (SST) system with the distinction -from traditional SST systems -of giving the output in a source (user's natural language/mother tongue) and not a target language.