The limitations of speech control: Perceptions of provision of speech-driven environmental controls

Abstract

This study set out to collect data from assistive technology professionals about their provision of speech-driven environmental control systems. This study is part of a larger study looking at developing a new speech-driven environmental control system. A focus group for assistive technology professionals was conducted. This focus group was recorded, transcribed and then analysed using a framework approach. The analysis suggested that professionals have a 'mental model' of a successful user of a speech-driven system and that in general they consider such systems either as a 'last resort' or to work in parallel with another system as a back-up. Perceived poor reliability was highlighted as a major influence in the provision of speech-driven environmental control systems although there were also positive perceptions about the use of speech under controlled circumstances. Comparison with published data from end-users showed that professionals highlighted the majority of issues identified by end-users. Assistive technology professionals think that speech has potential as an access method but are cautious about using speech-driven environmental control systems predominantly due to concerns about reliability. Professionals seem able to empathise well with the challenges faced by end-users in use of these systems. © Emerald Group Publishing Limited.