Academia.eduAcademia.edu

Asynchronous Video

description28 papers
group13 followers
lightbulbAbout this topic
Asynchronous video refers to pre-recorded video content that is accessed and viewed by users at their convenience, rather than in real-time. This format is commonly used in online education, communication, and marketing, allowing for flexible engagement and interaction without the constraints of live participation.
lightbulbAbout this topic
Asynchronous video refers to pre-recorded video content that is accessed and viewed by users at their convenience, rather than in real-time. This format is commonly used in online education, communication, and marketing, allowing for flexible engagement and interaction without the constraints of live participation.

Key research themes

1. How can broadcasting protocols simultaneously minimize bandwidth consumption and client waiting time in asynchronous Video-on-Demand (VoD) systems?

This theme focuses on advancing broadcasting protocols for asynchronous VoD systems that efficiently serve 'hot' videos with many simultaneous viewers. It explores partitioning videos into segments and scheduling their repeated broadcast over multiple streams to reduce total server bandwidth while limiting user start-up latency. Client buffer capacity and trade-offs between the number of streams and bandwidth overhead are central to these protocols.

Key finding: Introduces the pagoda broadcasting protocol which partitions videos into fixed-size segments equal to maximum waiting time and broadcasts these segments over a small number of equal-bandwidth data streams with time-division... Read more
Key finding: Proposes the use of partial preloading of the first few minutes of popular videos on client set-top boxes to allow zero or near-zero start-up delay. Develops two protocols—Polyharmonic Broadcasting with Partial Preloading and... Read more
Key finding: Provides the first analytical evaluation of chaining and its variants (standard, advanced, optimal, expanded, accelerated) where clients relay video streams to downstream clients. Demonstrates that chaining protocols reduce... Read more

2. How can asynchronous video communication enhance social presence and engagement in remote learning and collaborative environments?

This theme examines the pedagogical and psychological impact of asynchronous video technologies on instructor social presence, student engagement, emotional connection, and inclusive communication in online and hybrid learning. It addresses the affordances of asynchronous video in mitigating challenges of synchronous video fatigue, enabling flexible participation, and offering enhanced social cues compared to text-based communication.

Key finding: Presents case studies where faculty employed asynchronous video tools (e.g., Flipgrid, VoiceThread) to check student wellbeing, facilitate equitable class discussions, and enable student presentations, increasing engagement... Read more
Key finding: Through a survey of online students using Flipgrid, reports positive perceptions regarding ease of use, enhanced social presence, and improved learner community relative to traditional text-only discussion forums. Reveals... Read more
Key finding: Using a quasi-experimental design, demonstrates that asynchronous video communication fosters greater student perceptions of instructor social presence and engagement compared to text-based communication. Highlights... Read more
Key finding: Qualitative case studies show asynchronous video supports instructor and student social presence by enabling richer emotional expression, immediacy, and interpersonal connections compared to text-based communication.... Read more

3. What are the technical and user experience challenges associated with video synchronization, latency, and delivery protocols in asynchronous and live collaborative video systems?

This theme explores the technical complexities of delivering asynchronous video including synchronization of multi-stream video and audio, handling network latency and jitter effects, and developing robust communication protocols for interactive, peer-assisted, and live streamed video. The user experience implications of latency and asynchronous communication design are also investigated to optimize perceptual quality and collaboration effectiveness.

Key finding: Through an experimental charades task over video calls, demonstrates that increasing latency and jitter significantly degrade user visual communication performance and increase cognitive load and fatigue, particularly when... Read more
Key finding: Identifies challenges of multi-camera video synchronization and end-to-end delay in mobile collaborative live video systems where producers are co-located with camera operators, leading to confusion due to misaligned event... Read more
Key finding: Proposes a novel voting-based algorithm to estimate temporal alignment (synchrony) of two video sequences captured by moving cameras with unknown frame rate ratios and offsets. Introduces a cost function based on epipolar... Read more
Key finding: Develops an online system that separately captures and processes audio and video signals, applying time-stamping for synchronization without relying on lip-movement video cues. Synchronization enables integration of detected... Read more
Key finding: Extends WWW architecture to support real-time streaming of video and audio using a specialized Video Datagram Protocol (VDP) that reduces jitter and adapts dynamically to client CPU load and network congestion. Demonstrates a... Read more

All papers in Asynchronous Video

Text messaging has long been a popular activity, and today smartphone apps enable users to choose from a plethora of mobile messaging applications. While we know a lot about SMS practices, we know less about practices of messaging... more
Enrollment in online learning continues to grow in the higher education sector, along with persistent goals dedicated to achieving better student outcomes and lowering attrition rates. Improved student engagement has been shown to... more
In this paper we consider some non stationary relaxed synchronous and asynchronous multisplitting methods for solving the linear complementarity problems with their coefficient matrices being H−matrices. The convergence theorems of the... more
Exploring the Retention of Credit-Hour Value in Terms of Workload for University Core Courses Taught in a Time-Compressed Format Lyndell E. Lutes Instructional Psychology and Technology, BYU Doctor of Philosophy This study compared the... more
This paper explores the challenges of identifying faculty expectations for engineering communication skills, reinforcing those skills consistently across the curriculum, and assessing learning outcomes in undergraduate students through a... more
The purpose of this study was to examine the problems that learners faced while dealing with instructor-related issues when taking on-line courses. In this study, fifteen graduate students enrolled in 5 on-line graduate courses using... more
The COVID-19 pandemic forced colleges and universities to move all in-person courses to a remote or online learning format. As a result, many faculty, including teacher educators, opted to transition their courses to live synchronous web... more
This mixed method research examined instructors’ use of video feedback and its impact on instructor social presence in 12 blended sections of three preservice educational technology courses. An independent samples t-test was conducted and... more
An active learning environment is a technology-enriched and interactive physical space convenient for applying cooperative, active and engaged learning. It allows focus on engaging experiences for students and faculty. This study... more
Students are challenged when learning fractions and problems often persist into adulthood. Teachers may find it difficult to remediate student misconceptions in the busy classroom, particularly when the concept is as challenging as... more
We provide actionable strategies that teachers can follow when implementing asynchronous video communication and feedback in their own courses. These strategies are based on our own research over many years in the use of asynchronous... more
Distance learning offers an affordable and convenient way to study and improve one's knowledge in one's spare time. This trend has been accelerated by information and communication technologies that have pushed to new boundaries the ways... more
Exploring the Retention of Credit-Hour Value in Terms of Workload for University Core Courses Taught in a Time-Compressed Format Lyndell E. Lutes Instructional Psychology and Technology, BYU Doctor of Philosophy This study compared the... more
In education, a virtual learning environment (VLE) is a platform used in teaching and learning to give access to educational online content. This can be via computers or mobile technology. This study aims to identify the relationship... more
The instructional designer (ID) plays a critical role in the development and viability of each course taught at a distance, particularly in the incorporation of immediacy behaviors, or communication behaviors that convey approachability... more
This paper reports on how asynchronous mobile video messaging presents users with a challenge to doing 'being ordinary'. 53 participants from three countries were recruited to try Skype Qik at launch for two weeks. Some participants... more
Social presence in higher education online learning can be complex and challenging. To examine whether video instruction had an influence on course success, a between-subjects design was chosen to compare two groups of students enrolled... more
Discussion boards can provide a glimpse into the regular and substantive interaction required in online courses. Advances in technology and an increased interest in learning analytics now provides researchers with billions of data points... more
Caring is an important component of K-12 teaching and learning. An increasing number of K-12 students are enrolling in online courses. The physical separation of students and teachers in the online medium requires a change in the way... more
Instructors in a blended learning format struggle to find an effective balance between face-to-face instruction that is high in fidelity and online instruction that is high in flexibility. This chapter presents three cases where... more
Social presence in higher education online learning can be complex and challenging. To examine whether video instruction had an influence on course success, a between-subjects design was chosen to compare two groups of students enrolled... more
This mixed method research examined instructors’ use of video feedback and its impact on instructor social presence in 12 blended sections of three preservice educational technology courses. An independent samples t-test was conducted and... more
Caring is an important component of K-12 teaching and learning. An increasing number of K-12 students are enrolling in online courses. The physical separation of students and teachers in the online medium requires a change in the way... more
Energy Conservation and Environmental Protection (EGEE 102) course has been taught at Penn State since the fall of 2001. This course was selected by Penn State under the "Courseware Initiative" to be offered as an online course. To... more
Asynchronous video-based discussions have affordances that can address some of the constraints of asynchronous text-based discussions. However, little research has been conducted on the use of asynchronous video-based discussions in... more
Teaching foreign languages at distance is now becoming widespread; so is the need for evaluating online language courses. This article discusses an example of a framework that was applied to evaluate an online English as a foreign... more
Online education has long been suffering from high dropout rate and low achievement. However, both asynchronous and synchronous online instructions have to become effective to serve as a quick response to maintain undisrupted learning... more
We examined direct and interaction effects of learners' characteristics (cognitive ability, prior knowledge, prior experience, and motivation to learn) and classroom characteristics (videoconferencing and class size) on learning from a... more
Industry has developed a variety of models for efficient production and distribution of goods and services. Many of these have been applied to education, with varying degrees of success. For example, the production line, batch processing,... more
and submitted in partial fulfillment of the requirements for the degree of Master of Arts (Educational Technology) complies with the regulations of the University and meets the accepted standards with respect to originality and quality.
The online learning environment (OLE) is an essential element in using information and communication technology (ICT) for learning and instruction. This paper proposed a new structure of an OLE for design professional domain that tried to... more
This paper reports on how asynchronous mobile video messaging presents users with a challenge to doing 'being ordinary'. 53 participants from three countries were recruited to try Skype Qik at launch for two weeks. Some participants... more
This paper presents the results of an empirical study conducted with a set of students using an online learning environment (OLE) to follow a distance education program. The aim of the study was to find whether students could perform well... more
Science and technology, when applied to educational excellence, have become part of the arts and humanities of tomorrow. The interactive multimedia technology tools available to educators today provide an opportunity to build into the... more
Teaching foreign languages at distance is now becoming widespread; so is the need for evaluating online language courses. This article discusses an example of a framework that was applied to evaluate an online English as a foreign... more
This paper presents the results of an empirical study conducted with a set of students using an online learning environment (OLE) to follow a distance education program. The aim of the study was to find whether students could perform well... more
The online learning environment (OLE) is an essential element in using information and communication technology (ICT) for learning and instruction. This paper proposed a new structure of an OLE for design professional domain that tried to... more
Students are challenged when learning fractions and problems often persist into adulthood. Teachers may find it difficult to remediate student misconceptions in the busy classroom, particularly when the concept is as challenging as... more
Micro-learning is learning in smaller segments. Learning includes short lessons in written form (textual and/or textual-graphic), podcast (audio form) or a video recording. In addition to reading, listening and viewing new contents,... more
This paper discusses the efficacy of a self-instructional material-centred multimedia computer program grounded in a dynamic usage-based (DUB) approach to second language teaching in overcoming a predicament faced by second/foreign... more
In this study, using ADDIE instructional design model, it is aimed to prepare English language educational material for 4 th grade primary students to teach them numbers. At the same time, ARCS model of motivation's attention, relevance... more
This paper reports on how asynchronous mobile video messaging presents users with a challenge to doing ‘being ordinary’. 53 participants from three countries were recruited to try Skype Qik at launch for two weeks. Some participants... more
Online and brick-and-mortar universities are continually looking for a model that maximizes the student experience with the goal of enhancing retention and graduation rates among all student populations. Online education with its... more
Amid the vast spread of the coronavirus pandemic, educational institutions have shifted to online learning across the world. In this connection, people of different cultures are experiencing a rigid period in which mainly school... more
The purpose of this study was to identify significant differences in academic achievement among virtual students of various backgrounds, demographics, and virtual learning environments. The study also sought to identify factors that may... more
An active learning environment is a technology-enriched and interactive physical space convenient for applying cooperative, active and engaged learning. It allows focus on engaging experiences for students and faculty. This study... more
Abstract: This instructional design project tested the value of a Flash animated, interactive module in teaching animation principles in the
Feedback is an essential part of the learning process. Asynchronous online courses are marked by an abundance of text-based feedback. Yet, video feedback in asynchronous online courses is a nascent field of inquiry. This study... more
Download research papers for free!