A tool to support speech and non-speech audio feedback generation in audio interfaces
Lisa J. Stifelman · 1995
Developmentof new auditory interfaces requires the integration of text-to-speech synthesis, digitized audio, and non-speech audio output.This paper describes a tool for specifying speech and non-speech audio feedback and its use in the development of a speech interface, Conversational VoiceNotes.Auditory feedback is specified as a context-free grammar, where the basic elements in the grammar can be either words or non-speech sounds.The feedback specification method described here provides the ability to vary the feedback based on the current state of the system, and is flexible enough to allow different feedback for different input modalities (e.g., speech, mouse, buttons).The declarative specification is easily modifiable, supporting an iterative design process.