Untrodden 11／23 Report

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November Progress Report

• 👨‍💻 Shintaro Aoyama

• 🏫 Gunma International Academy High School, 11th grade (Sophomore)

• 📕 “Video-Type Note that Manipulates Time”

• Table of Contents

  • 🕰 About Synchronization Among Students
  • 👆 About the User Interface
  • 📄 Pagination Proposal
  • 🧭 Future Direction

🕰 About Synchronization Among Students

• Existing form of live streaming

  • 

• Desired form

  • 
  • Difference from the conventional form: Lines are connected

• Desired form (with arrows for pseudo-synchronization, complete version)

  • 

🕰 About Synchronization Among Students

• Implementation approach: Each device (student) autonomously adjusts its speed based on the playback position of other devices

  • A function is needed to determine the playback speed for the next moment based on the playback position of other devices

• ① Converging towards the average playback position / Stronger weight for distant positions

  • 
  • Issue: It brings distant people closer to achieve synchronization

• ② Attracting each other / Stronger weight for closer positions

  • 
  • Issue: Rapid changes in speed

• Ideal scenario

  • Graph with a stable change in playback speed
    • = Minimum number and amount of changes

• If you have any ideas/topics to explore, please let me know 🙏

• Demo

  • Implementation that converges towards the average position
  • https://youtu.be/875_TUInDkY

👆 User Interface

• Conceptualizing the app:

• “YouTube with synchronous dialogue” OR "Zoom with time manipulation"

  • I want users to perceive it as the latter
  • It’s easier to think of it as “having control over one’s own timeline” and requires less mental effort

• UI for manipulating video playback position

  • Seek bar UI like YouTube may not be suitable?
  • Manipulating the relative video playback position
  • Dragging the bottom of the screen to move the playback position
  • Demo (Minimum required implementation)
  • https://youtu.be/kFrKiItslfc

📄 Pagination Proposal

• Current implementation: Displaying annotations for ±5 seconds
• User testing
  • “It’s difficult when the written text disappears immediately” (disappears in 5 seconds)
  • “Introducing the concept of pages seems like a good idea”
• Pagination proposal
  • Divide the video into pages at intervals of about 10 seconds
    • Annotations within a “page” are shared
  • Show annotations written on the page corresponding to the current playback position

🧭 Future Direction

• Direction
  • ① Demonstrate the benefits of combining synchronization and pseudo-synchronization in class
  • ② Find a good UI for viewing videos with synchronization and pseudo-synchronization
  • ③ Consider horizontal expansion
• Final presentation
  • Present actual communication that occurred in class
  • Present a world where “synchronization and pseudo-synchronization are mixed”
    • e.g., yoga, jam sessions
  • If the app can be distributed, use it during the presentation.