EmacSpeak

Latest release: EmacSpeak 1.0

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Emacspeak provides complete eyes-free access to daily computing tasks. By providing fluent spoken access to local and remote electronic information, the system opens up the wealth of information available on the Internet to visually impaired users. See this case study for details.

Emacspeak introduces several improvements and innovations when compared with screenreaders designed to allow blind users to interact with personal computers. Unlike screenreaders that speak the contents of a visual display, Emacspeak speaks the underlying information. As an example, using a calendar application with a screenreader results in the blind user hearing a sequence of meaningless numbers; In contrast, Emacspeak speaks the relevant date in an easy to comprehend manner.

The system deploys the innovative technique of audio formatting to increase the band-width of aural communication; changes in voice characteristic and inflection combined with appropriate use of non-speech auditory icons are used throughout the user interface to create the equivalent of spatial layout, fonts, and graphical icons so important in the visual interface. This provides rich contextual feedback and shifts some of the burden of listening from the cognitive to the perceptual domain.

Finally, Emacspeak like Linux is completely free; in contrast, commercially available screenreaders typically double the cost of a personal computer. These innovations have together resulted in the system significantly increasing the ability of visually impaired individuals throughout the world to more effectively use information technology for work and leisure.