Turn-taking is one of the biggest interactivity challenges in multiparty remote meetings.
One contributing factor is that current videoconferencing tools lack support for proxemic cues; i.e., spatial cues that humans use to enact their social relations and intentions.
While more recent tools provide support for proxemic metaphors, they often focus on approach and leave-taking rather than turn-taking. In this paper, we present OpenMic, a videoconferencing system that utilizes proxemic metaphors for conversational floor management by providing 1) a Virtual Floor that serves as a fixed-feature space for users to be aware of others' intention to talk, and 2) Malleable Mirrors, which are video and screen feeds that can be continuously moved and resized for conversational floor transitions. Our exploratory user study found that these system features can aid the conversational flow in multiparty video meetings. With this work, we show potential for embedding proxemic metaphors to support conversational floor management in videoconferencing systems.
Video-sharing platforms (VSPs) such as YouTube, TikTok, and Twitch have grown rapidly in recent years and attracted millions of users. Research topics such as online communities, video interactions, and recommendation algorithms have drawn increasing attention. Group and community dynamics were also examined with live streaming and short-form videos. However, HCI literature lacks a holistic picture of video-sharing research themes, methods, and findings that summarizes the diverse topics on interaction modalities and communities. Prior reviews on VSPs were about a particular platform or reviewed as a part of social media. This paper contributes a scoping review of 106 articles on video-sharing published in HCI literature from 2012 to June 2022. We identified six research themes through grounded theory analysis and encoded five HCI research methods in VSP studies. We concluded a framework with five components to structure findings in video-sharing research, with which we reflect on future directions on this topic.
Live streaming platforms and existing viewer participation tools enable users to interact and engage with an online community, but the anonymity and scale of chat usually result in the spread of negative comments. However, only a few existing moderation tools investigate the influence of proactive moderation on viewers' engagement and prosocial behavior. To address this, we developed StoryChat, a narrative-based viewer participation tool that utilizes a dynamic graphical plot to reflect chatroom negativity. We crafted the narrative through a viewer-centered (N=65) iterative design process and evaluated the tool with 48 experienced viewers in a deployment study. We discovered that StoryChat encouraged viewers to contribute prosocial comments, increased viewer engagement, and fostered viewers' sense of community. Viewers reported a closer connection between streamers and other viewers because of the narrative design, suggesting that narrative-based viewer engagement tools have the potential to encourage community engagement and prosocial behaviors.
International program development is a complex process involving many stakeholders. Current international practice affords limited, if any, opportunities for direct community-led input into the program commissioning process, resulting in programs that may not meet the specific needs of communities on the ground. Community voice is one source of data that could help focus the design of effective development programs and interventions.
However, development programs are primarily formulated based on representative and often quantitative data conducted by experts from outside the community. Through a participatory video production process with disadvantaged women farmers in rural Bangladesh, we explore the opportunities for including meaningful community voices in these institutionalized processes.
We present practical design implications for how community-generated voices can act as rich data, establishing confidence, community bonds and senses of accountability to inform early stages of project development, and to specifically augment and contextualize other data sources.
Hybrid video calls include attendees in a conference room with
loudspeakers and remote attendees using headsets, each with dif-
ferent options for rendering sound spatially. Two studies explored
the listener experience with spatial audio in video calls. One study
examined the in-room experience using loudspeakers, comparing
among spatialization algorithms spreading voices out horizontally.
A second study compared varying degrees of horizontal separation
of binaurally rendered voices for a remote participant using a head-
set. In-room participants preferred the widest spatialization over
monophonic, stereo, and stereo-binary audio in metrics related to
intelligibility and helpfulness. Remote participants preferred differ-
ent widths of the audio stage depending on the number of voices.
In both studies, rendering sound spatially increased performance
in speech stream identification. Results indicate spatial audio bene-
fits for in-room and remote attendees in video calls, although the
in-room attendees accepted a wider audio stage than remote users.
On the social media platform TikTok, users are able to engage with each other's content by using the Duet feature, which allows them to re-share another user's video while also layering on additional content to the original video. Through this, the affordances of the Duet feature facilitate a distributed and collaborative creative process, in which we can observe the evolution of cultural artifacts through the different versions that are produced from user contributions. As a result, the open-ended nature of these collaborations positions engagement as both a creative and social act. In this paper, we identify the ways in which the Duet feature supports decentralized co-creativity and engagement between users. We find that the cumulative nature of an artifact's creative evolution, along with the ability for multiple iterations of an artifact to develop in parallel, facilitates development of diverse creative artifacts.