Voice Snapping: Inclusive Speech Interaction Techniques for Creative Object Manipulation

Abstract

Voice input holds signifcant potential to support people with physical impairments in producing creative visual design outputs, although it is unclear whether well-established interaction methods used for manipulating graphical assets within mainstream creative applications (typically operated via a mouse, keyboard, or touch input) also present benefts for speech interaction. We present three new voice controlled approaches utilizing interface snapping techniques for manipulating a graphical object's dimensions: NoSnap, UserSnap, and AutoSnap. A user evaluation with people who have physical impairments (N =25) found that each method enabled participants to successfully control a graphical object's size across a series of design tasks, although the automated snapping approach utilized within AutoSnap was found to be more efcient, accurate, and usable. Subjective feedback from participants also highlighted a strong preference for AutoSnap over the other techniques in terms of efciency and ease of use. CCS CONCEPTS• Human-centered computing → Accessibility; Accessibility design and evaluation methods.