Gesture Mp3 Player, Multi-Model Interaction


mp3 player

objectives

phase 1

* Build a wearable gesture controlled remote for an MP3 player based on the existing Gesture Watch.

phase 2

* Maximize error resistance via new interaction model that includes vibro-tactile feedback and an improved trigger-mechanism.

* Design a user study for testing the effectiveness of the new design.

solution

The initial prototype consisted of a gesture-controlled mp3 player that also provided vibro-haptic feedback to aid gesture formation. Video demo provided:

The final prototype could identify and execute several gestures that controlled a music player on a laptop. The implemented interaction model allowed basic input browsing (i.e. confirm, undo). The vibro-haptic feedback replicated the gestural patterns to inform user of the recognized gesture. A study was piloted to asses initial usability. Video demo provided:

process

Four of us took part in this project. Two team members acted as leads on the hardware and software development of the prototype. One other member focused on the report-write up.

As the sole HCI student on the team, I contributed by working on establishing a positive and usable user-experience for the device. I strove to enhance learnability by selecting gestures that followed the natural mapping usually attributed to music player controls. By adding the ability to confirm and undo a gesture within a comprehensive new interaction model with corresponding vibro-haptic feedback, I improved the system robustness. At the moment, the device flexibility is limited, but future iterations may utilize machine learning to create a customizable set of gestures for every user.

Finally, I laid out a detailed experiment design to study the usability of the device. We ran a pilot and presented several findings related to the device and the study itself for future designers.

Aside from my role as a user evangelist, I also produced and edited the final videos.