The “Voice” Has It: Screen Reader Adoption and Switching Behavior Among Vision Impaired Persons in India

We present results from a mixed methods study of screen reader use and switching behavior among people with vision impairments in India. We examine loyalty and experimentation with screen readers and find that the main drivers of adoption for early users differ significantly from the factors that drive continued use by advanced users. We discuss the factor that emerges as one of the strongest stated drivers of early adoption, text-to-speech “voice” quality, particularly a “human-sounding voice” as one of the key features differentiating free/open source products from more expensive proprietary products. While the initial preferences are driven by voice quality, application support becomes more important over time as users speed up their sound settings and become more comfortable with the resultant non-human-sounding speech. We discuss these findings from two theoretical perspectives—first, through the application of the economics of behavior switching, and second, vis-à-vis novice and expert approaches toward new product adoption. We argue that these findings further our understanding of initial user comfort related to assistive technology adoption, and the impact of early technology choices on long-term technology switching behavior.

[1]  P. David Clio and the Economics of QWERTY , 1985 .

[2]  A. E. Beattie Effects of Product Knowledge on Compaison, Memory, Evaluation, and Choice: a Model of Expertise in Consumer Decision-Making , 1982 .

[3]  John M. Carroll,et al.  Training wheels in a user interface , 1984, CACM.

[4]  A. Bonaccorsi,et al.  Why Open Source Software Can Succeed , 2002 .

[5]  G. Tellis,et al.  Does Quality Win? Network Effects versus Quality in High-Tech Markets , 2009 .

[6]  Evangelos Vlachogiannis,et al.  Major HCI Challenges for Open Source Software Adoption and Development , 2007, HCI.

[7]  Melissa A. Schilling Technology Success and Failure in Winner-Take-All Markets: The Impact of Learning Orientation, Timing, and Network Externalities , 2002 .

[8]  C. Shapiro,et al.  Systems Competition and Network Effects , 1994 .

[9]  Sigi Goode,et al.  Something for nothing: management rejection of open source software in Australia's top firms , 2005, Inf. Manag..

[10]  Neil Gandal,et al.  Competing Compatibility Standards and Network Externalities in the PC Software Market , 1995 .

[11]  Fred D. Davis Perceived Usefulness, Perceived Ease of Use, and User Acceptance of Information Technology , 1989, MIS Q..

[12]  Tohru Ifukube,et al.  Maximum listening speeds for the blind , 2003 .

[13]  W. Arthur,et al.  INCREASING RETURNS AND LOCK-IN BY HISTORICAL EVENTS , 1989 .

[14]  Viswanath Venkatesh,et al.  Where To Go From Here? Thoughts on Future Directions for Research on Individual-Level Technology Adoption with a Focus on Decision Making , 2006, Decis. Sci..

[15]  B. Shneiderman Promoting universal usability with multi-layer interface design , 2002, CUU '03.

[16]  D B Pisoni,et al.  Comprehension of Synthetic Speech Produced by Rule: Word Monitoring and Sentence-by-Sentence Listening Times , 1991, Human factors.

[17]  Rudulph A. Polson,et al.  The technology adoption process in subsistence agriculture: The case of cassava in Southwestern Nigeria , 1991 .

[18]  Ross J. Anderson Why information security is hard - an economic perspective , 2001, Seventeenth Annual Computer Security Applications Conference.

[19]  P. Klemperer Markets with consumer switching costs , 1986 .

[20]  Matthias Müller-Prove,et al.  Professional usability in open source projects: GNOME, OpenOffice.org, NetBeans , 2004, CHI EA '04.

[21]  Eric J. Johnson,et al.  Product familiarity and learning new information , 1984 .

[22]  Heidrun C. Hoppe The Timing of New Technology Adoption: Theoretical Models and Empirical Evidence , 2002 .

[23]  N. Phillips,et al.  The Birth of the 'Kodak Moment': Institutional Entrepreneurship and the Adoption of New Technologies , 2005 .

[24]  Hal R. Varian,et al.  Linux Adoption in the Public Sector: An Economic Analysis , 2003 .

[25]  Nir Kshetri,et al.  Economics of Linux adoption in developing countries , 2004, IEEE Software.

[26]  David L. Mothersbaugh,et al.  Switching barriers and repurchase intentions in services , 2000 .

[27]  Zhilin Yang,et al.  Customer perceived value, satisfaction, and loyalty: The role of switching costs , 2004 .

[28]  C. Shapiro,et al.  Technology Adoption in the Presence of Network Externalities , 1986, Journal of Political Economy.

[29]  G. Gelderblom,et al.  Non-use of provided assistive technology devices, a literature overview , 2004 .

[30]  P. Klemperer,et al.  Coordination and Lock-In: Competition with Switching Costs and Network Effects , 2006 .

[31]  P. Klemperer,et al.  Chapter 31 Coordination and Lock-In: Competition with Switching Costs and Network Effects , 2007 .

[32]  Joseph Farrell,et al.  Installed base and compatibility : innovation, product preannouncements and predation , 1986 .

[33]  C. Shapiro,et al.  Network Externalities, Competition, and Compatibility , 1985 .

[34]  Taniya Mishra,et al.  On the intelligibility of fast synthesized speech for individuals with early-onset blindness , 2011, ASSETS.

[35]  Neil Gandal Hedonic Price Indexes for Spreadsheets and an Empirical Test for Network Externalities , 1994 .

[36]  D. North Competing Technologies , Increasing Returns , and Lock-In by Historical Events , 1994 .

[37]  Rogerio DePaula,et al.  A Framework for the Adoption of Assistive Technology , 2002 .

[38]  JungKun Park,et al.  M‐loyalty: winning strategies for mobile carriers , 2006 .