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Concurrent speech feedback for blind people on touchscreens

Bibliographic Details
Main Author: Francisco, Pedro André Mendes
Publication Date: 2022
Format: Master thesis
Language: eng
Source: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Download full: http://hdl.handle.net/10451/57293
Summary: Tese de Mestrado, Engenharia Informática, 2023, Universidade de Lisboa, Faculdade de Ciências
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network_acronym_str RCAP
network_name_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
repository_id_str https://opendoar.ac.uk/repository/7160
spelling Concurrent speech feedback for blind people on touchscreensAcessibilidadeSaída de vozSonificaçãoDeficiência VisualConcurrent speechTeses de mestrado - 2023Domínio/Área Científica::Engenharia e Tecnologia::Engenharia Eletrotécnica, Eletrónica e InformáticaTese de Mestrado, Engenharia Informática, 2023, Universidade de Lisboa, Faculdade de CiênciasSmartphone interactions are demanding. Most smartphones come with limited physical buttons, so users can not rely on touch to guide them. Smartphones come with built-in accessibility mechanisms, for example, screen readers, that make the interaction accessible for blind users. However, some tasks are still inefficient or cumbersome. Namely, when scanning through a document, users are limited by the single sequential audio channel provided by screen readers. Or when tasks are interrupted in the presence of other actions. In this work, we explored alternatives to optimize smartphone interaction by blind people by leveraging simultaneous audio feedback with different configurations, such as different voices and spatialization. We researched 5 scenarios: Task interruption, where we use concurrent speech to reproduce a notification without interrupting the current task; Faster information consumption, where we leverage concurrent speech to announce up to 4 different contents simultaneously; Text properties, where the textual formatting is announced; The map scenario, where spatialization provides feedback on how close or distant a user is from a particular location; And smartphone interactions scenario, where there is a corresponding sound for each gesture, and instead of reading the screen elements (e.g., button), a corresponding sound is played. We conducted a study with 10 blind participants whose smartphone usage experience ranges from novice to expert. During the study, we asked participants’ perceptions and preferences for each scenario, what could be improved, and in what situations these extra capabilities are valuable to them. Our results suggest that these extra capabilities we presented are helpful for users, especially if these can be turned on and off according to the user’s needs and situation. Moreover, we find that using concurrent speech works best when announcing short messages to the user while listening to longer content and not so much to have lengthy content announced simultaneously.Guerreiro, João Pedro VieiraRodrigues, André Filipe PereiraRepositório da Universidade de LisboaFrancisco, Pedro André Mendes2023-04-28T16:57:46Z202320222023-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10451/57293TID:203491580enginfo:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2025-03-17T14:56:29Zoai:repositorio.ulisboa.pt:10451/57293Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-29T03:29:27.444275Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
dc.title.none.fl_str_mv Concurrent speech feedback for blind people on touchscreens
title Concurrent speech feedback for blind people on touchscreens
spellingShingle Concurrent speech feedback for blind people on touchscreens
Francisco, Pedro André Mendes
Acessibilidade
Saída de voz
Sonificação
Deficiência Visual
Concurrent speech
Teses de mestrado - 2023
Domínio/Área Científica::Engenharia e Tecnologia::Engenharia Eletrotécnica, Eletrónica e Informática
title_short Concurrent speech feedback for blind people on touchscreens
title_full Concurrent speech feedback for blind people on touchscreens
title_fullStr Concurrent speech feedback for blind people on touchscreens
title_full_unstemmed Concurrent speech feedback for blind people on touchscreens
title_sort Concurrent speech feedback for blind people on touchscreens
author Francisco, Pedro André Mendes
author_facet Francisco, Pedro André Mendes
author_role author
dc.contributor.none.fl_str_mv Guerreiro, João Pedro Vieira
Rodrigues, André Filipe Pereira
Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Francisco, Pedro André Mendes
dc.subject.por.fl_str_mv Acessibilidade
Saída de voz
Sonificação
Deficiência Visual
Concurrent speech
Teses de mestrado - 2023
Domínio/Área Científica::Engenharia e Tecnologia::Engenharia Eletrotécnica, Eletrónica e Informática
topic Acessibilidade
Saída de voz
Sonificação
Deficiência Visual
Concurrent speech
Teses de mestrado - 2023
Domínio/Área Científica::Engenharia e Tecnologia::Engenharia Eletrotécnica, Eletrónica e Informática
description Tese de Mestrado, Engenharia Informática, 2023, Universidade de Lisboa, Faculdade de Ciências
publishDate 2022
dc.date.none.fl_str_mv 2022
2023-04-28T16:57:46Z
2023
2023-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10451/57293
TID:203491580
url http://hdl.handle.net/10451/57293
identifier_str_mv TID:203491580
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron:RCAAP
instname_str FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron_str RCAAP
institution RCAAP
reponame_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
collection Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
repository.name.fl_str_mv Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
repository.mail.fl_str_mv info@rcaap.pt
_version_ 1833601717898313728

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