“It’s Kind of Context Dependent”: Understanding Blind and Low Vision People’s Video Accessibility Preferences Across Viewing Scenarios
Abstrak
While audio description (AD) is the standard approach for making videos accessible to blind and low vision (BLV) people, existing AD guidelines do not consider BLV users’ varied preferences across viewing scenarios. These scenarios range from how-to videos on YouTube, where users seek to learn new skills, to historical dramas on Netflix, where a user’s goal is entertainment. Additionally, the increase in video watching on mobile devices provides an opportunity to integrate nonverbal output modalities (e.g., audio cues, tactile elements, and visual enhancements). Through a formative survey and 15 semi-structured interviews, we identified BLV people’s video accessibility preferences across diverse scenarios. For example, participants valued action and equipment details for how-to videos, tactile graphics for learning scenarios, and 3D models for fantastical content. We define a six-dimensional video accessibility design space to guide future innovation and discuss how to move from “one-size-fits-all” paradigms to scenario-specific approaches.
Artikel Ilmiah Terkait
Alexandre Nevsky M. Cruice E. Simperl + 1 lainnya
11 Mei 2024
The presence of audiovisual media is a mainstay in the lives of many, increasingly so with technological progress. Accessing video and audio content, however, can be challenging for people with diverse needs. Existing research has explored a wide range of accessibility challenges and worked with disabled communities to design technologies that help bridge the access gap. Despite this work, our understanding of the challenges faced by communities with complex communication needs (CCNs) remains poor. To address this shortcoming, we present the first study that investigates the viewing experience of people with the communication impairment aphasia through an online survey (N=41) and two focus group sessions (N=10), with the aim of understanding their specific access challenges. We find that aphasia significantly impact viewing experience and present a taxonomy of access barriers and facilitators, with suggestions for future research.
R. Kushalnagar Dawson Franz Christian Vogler + 2 lainnya
26 Oktober 2022
Few VR applications and games implement captioning of speech and audio cues, which either inhibits or prevents access of their application by deaf or hard of hearing (DHH) users, new language learners, and other caption users. Additionally, little to no guidelines exist on how to implement live captioning on VR headsets and how it may differ from traditional television captioning. To help fill the void of information behind user preferences of different VR captioning styles, we conducted a study with eight DHH participants to test three caption movement behaviors (headlocked, lag, and appear) while watching live-captioned, single-speaker presentations in VR. Participants answered a series of Likert scale and open-ended questions about their experience. Participant preferences were split, but the majority of participants reported feeling comfortable with using live captions in VR and enjoyed the experience. When participants ranked the caption behaviors, there was almost an equal divide between the three types tested. IPQ results indicated each behavior had similar immersion ratings, however participants found headlocked and lag captions more user-friendly than appear captions. We suggest that participants may vary in caption preference depending on how they use captions, and that providing opportunities for caption customization is best.
Jeffrey P. Bigham Yi-Hao Peng JiWoong Jang + 1 lainnya
26 Maret 2021
Presenters commonly use slides as visual aids for informative talks. When presenters fail to verbally describe the content on their slides, blind and visually impaired audience members lose access to necessary content, making the presentation difficult to follow. Our analysis of 90 presentation videos revealed that 72% of 610 visual elements (e.g., images, text) were insufficiently described. To help presenters create accessible presentations, we introduce Presentation A11y, a system that provides real-time and post-presentation accessibility feedback. Our system analyzes visual elements on the slide and the transcript of the verbal presentation to provide element-level feedback on what visual content needs to be further described or even removed. Presenters using our system with their own slide-based presentations described more of the content on their slides, and identified 3.26 times more accessibility problems to fix after the talk than when using a traditional slide-based presentation interface. Integrating accessibility feedback into content creation tools will improve the accessibility of informational content for all.
Richard E. Ladner Aashaka Desai Jennifer Mankoff
19 April 2023
Speechreading is the art of using visual and contextual cues in the environment to support listening. Often used by d/Deaf and Hard-of-Hearing (d/DHH) individuals, it highlights nuances of rich communication. However, lived experiences of speechreaders are underdocumented in HCI literature, and the impact of online environments and interactions of captioning with speechreading has not been explored in depth. We bridge these gaps through a three-part study consisting of formative interviews, design probes, and design sessions with 12 d/DHH individuals who speechread. Our primary contribution is to understand the lived experience of speechreading in online communication, and thus to better understand the richness and variety of techniques d/DHH individuals use to provision access. We highlight technical, environmental and sociocultural factors that impact communication accessibility, explore the design space of speechreading supports and share considerations for the design future of speechreading technology.
João Ricardo dos S. Rosa N. M. Valentim
26 Oktober 2020
The use of Information and Communication Technologies (ICTs) can be an important ally in improving the quality of life of Visually Impaired People (VIP) because they provide greater independence in the performance of their daily tasks. During the development process of ICTs for VIP, the concepts of Accessibility, Usability, and User eXperience (UX) are significant because they can positively influence the system's quality. Concerning these concepts, some improvements can be considered already at the design stage, such as screen size, button format, color density, among others. However, not all designers consider Accessibility, Usability, and UX concepts when designing ICT for VIP. To identify and characterize which design technologies of Accessibility, Usability, and UX have been proposed in the literature, we performed a Systematic Mapping Study (SMS). We identified a total of 23 technologies. The analysis from these technologies showed that the majority are destined for mobile applications. Besides, some design technologies only address the concept of Accessibility, and only one technology considered the concepts of Accessibility, Usability, and UX together. To support professionals, students, and researchers in Human-Computer Interaction (HCI) and Software Engineering (SE), this SMS presents a set of Accessibility, Usability, and UX design technologies, which can be used in the initial phases of the ICT development process for VIP.
Daftar Referensi
3 referensiAccessibility of Profile Pictures: Alt Text and Beyond to Express Identity Online
John Tang Edward Cutrell + 1 lainnya
19 April 2023
Profile pictures can convey rich social signals that are often inaccessible to blind and low vision screen reader users. Although there have been efforts to understand screen reader users’ preferences for alternative (alt) text descriptions when encountering images online, profile pictures evoke distinct information needs. We conducted semi-structured interviews with 16 screen reader users to understand their preferences for various styles of profile picture image descriptions in different social contexts. We also interviewed seven sighted individuals to explore their thoughts on authoring alt text for profile pictures. Our findings suggest that detailed image descriptions and user narrated alt text can provide screen reader users enjoyable and informative experiences when exploring profile pictures. We also identified mismatches between how sighted individuals would author alt text with what screen reader users prefer to know about profile pictures. We discuss the implications of our findings for social applications that support profile pictures.
Supporting Accessible Data Visualization Through Audio Data Narratives
Sile O'Modhrain Gene S-H Kim + 2 lainnya
29 April 2022
Online data visualizations play an important role in informing public opinion but are often inaccessible to screen reader users. To address the need for accessible data representations on the web that provide direct, multimodal, and up-to-date access to the data, we investigate audio data narratives –which combine textual descriptions and sonification (the mapping of data to non-speech sounds). We conduct two co-design workshops with screen reader users to define design principles that guide the structure, content, and duration of a data narrative. Based on these principles and relevant auditory processing characteristics, we propose a dynamic programming approach to automatically generate an audio data narrative from a given dataset. We evaluate our approach with 16 screen reader users. Findings show with audio narratives, users gain significantly more insights from the data. Users describe data narratives help them better extract and comprehend the information in both the sonification and description.
“It’s Complicated”: Negotiating Accessibility and (Mis)Representation in Image Descriptions of Race, Gender, and Disability
Cynthia L. Bennett Anhong Guo + 4 lainnya
6 Mei 2021
Content creators are instructed to write textual descriptions of visual content to make it accessible; yet existing guidelines lack specifics on how to write about people’s appearance, particularly while remaining mindful of consequences of (mis)representation. In this paper, we report on interviews with screen reader users who were also Black, Indigenous, People of Color, Non-binary, and/or Transgender on their current image description practices and preferences, and experiences negotiating theirs and others’ appearances non-visually. We discuss these perspectives, and the ethics of humans and AI describing appearance characteristics that may convey the race, gender, and disabilities of those photographed. In turn, we share considerations for more carefully describing appearance, and contexts in which such information is perceived salient. Finally, we offer tensions and questions for accessibility research to equitably consider politics and ecosystems in which technologies will embed, such as potential risks of human and AI biases amplifying through image descriptions.
Artikel yang Mensitasi
0 sitasiTidak ada artikel yang mensitasi.