Document Type

Conference Proceeding

Publication Date

7-17-2025

Department

Department of Computer Science

Abstract

We explore a method for presenting word suggestions for non-visual text input using simultaneous voices. We conduct two perceptual studies and investigate the impact of different presentations of voices on a user's ability to detect which voice, if any, spoke their desired word. Our sets of words simulated the word suggestions of a predictive keyboard during real-world text input. We find that when voices are simultaneous, user accuracy decreases significantly with each added word suggestion. However, adding a slight 0.15 s delay between the start of each subsequent word allows two simultaneous words to be presented with no significant decrease in accuracy compared to presenting two words sequentially (84% simultaneous versus 86% sequential). This allows two word suggestions to be presented to the user 32% faster than sequential playback without decreasing accuracy.

Publisher's Statement

© 2025 Copyright held by the owner/author(s). Publisher’s version of record: https://doi.org/10.1145/3733155.3733212

Publication Title

Proceedings of the 18th ACM International Conference on Pervasive Technologies Related to Assistive Environments Petra 2025

ISBN

9798400714023

Creative Commons License

Creative Commons Attribution 4.0 International License
This work is licensed under a Creative Commons Attribution 4.0 International License.

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