Contingut en 360º accessible: un estudi centrat en l'usuari sobre audiodescripció
- Autores: Anita Fidyka
- Directores de la Tesis: Anna Matamala (dir. tes.)
- Lectura: En la Universitat Autònoma de Barcelona ( España ) en 2021
- Idioma: catalán
- Tribunal Calificador de la Tesis: Iwona Mazur (presid.), Carme Mangiron i Hevia (secret.), Anna Jankowska (voc.)
- Programa de doctorado: Programa de Doctorado en Traducción y Estudios Interculturales por la Universidad Autónoma de Barcelona
- Materias:
- Enlaces
- Tesis en acceso abierto en: TDX
- Resumen
This thesis explores how audio description (AD) can be implemented in 360° videos, one of the novel media formats to have entered the market in recent years. The studies, conducted at an early stage of adoption of immersive content, have obtained feedback from two groups of users. On the one hand, they centre on identifying the needs of professional describers when working with 360° videos. On the other, they focus on AD users in order to develop solutions that enhance their experience.
As the first step, a literature review was conducted to define 360° videos within immersive environments. In its course, 360° videos were defined as a form of Virtual Reality, which is considered to have a high degree of immersive capacity. In the second literature review, 2D films were compared with 360° videos in terms of storytelling. The results show that although 360° narrative videos bear some similarities with standard films, some differences are also present and they can pose challenges for describers working with such content.
The literature reviews were complemented by two focus groups in which describers and AD users expressed their needs and expectations. The results of these qualitative studies suggested possible approaches to AD, including the use of spatial sound and the elements of interaction.
As the next step, a prototype of the online software for editing AD was assessed in a usability study with professional describers. The software obtained the score of 55.9 on the usability scale and participants provided specific points for improvement in additional preference questions.
The methodology for the main reception study was tested in an exploratory pilot with 6 participants with sight loss. The presentation modes differed in terms of the placement of the spatial sound. Their effect on users’ presence was assessed by means of the IPQ questionnaire and additional questions asked users about their preferences. As no significant differences were observed between the conditions, they were reconsidered for the main study, testing different scripting styles.
The main reception study was conducted with 30 participants with sight loss and it followed the same methodological design as the pilot. The results of the IPQ questionnaire show significant differences between blind and partially-sighted persons in two of the presence subscales, the scores being higher for partially-sighted persons. The results from preference questionnaire show a favourable reception of the Extended presentation mode, as 40% of participants selected this mode as their preferred option, including 9 blind and 3 partially-sighted persons.
Overall, this thesis presents one of the first studies on virtual environments in the AD field. It is hoped that the results of extensive testing, will lead towards a broader understanding of accessibility in virtual environments.
