Usability evaluation of voiceprint authentication in automated telephone banking: Sentences versus digits

Nancie Gunson, Diarmid Marshall, Fergus McInnes, Mervyn Jack

Research output: Contribution to journalArticlepeer-review

Abstract

This paper describes an experiment to investigate the usability of voiceprints for customer authentication in automated telephone banking. The usability of voiceprint authentication using digits (random strings and telephone numbers) and sentences (branded and unbranded) are compared in a controlled experiment with 204 telephone banking customers. Results indicate high levels of usability and customer acceptance for voiceprint authentication in telephone banking. Customers find voiceprint authentication based on digits more usable than that based on sentences, and a majority of participants would prefer to use digits.
Original languageEnglish
Pages (from-to)57-69
Number of pages13
JournalInteracting with Computers
Volume23
Issue number1
DOIs
Publication statusPublished - Jan 2011

Keywords / Materials (for Non-textual outputs)

  • Voiceprint
  • Authentication
  • Verification
  • Usability
  • Biometrics
  • Dialogue design

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