Identifying the Desired Word Suggestion in Simultaneous Audio

Document Type

Conference Proceeding

Publication Date

7-17-2025

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.

Publication Title

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

ISBN

[9798400714023]

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