MR-Drum：設計輔助初學者學習打鼓的階段式學習框架與MR系統

Abstract

學習打鼓具有挑戰性，因為需要雙手和雙腳同時獨立演奏多種節奏。我們進行了兩項形成性研究，以了解：(1) 專業鼓手教學方法，以及 (2) 鼓手當前的自學方式與痛點。所有受訪教師皆會將複雜的節奏與肢體動作拆解，並透過結構化進程進行教學，然而這種方法至今尚未被 HCI 研究探討。基於這些發現，我們開發了一種全新的微進程學習框架（micro-progression learning framework），專為初學者設計，將理解進程（擊鼓順序與節奏）與肢體協調進程拆分並結構化為 16 個學習階段。此外，我們設計了 MR-Drum，這是一款混合實境（MR）系統，透過第一人稱視角顯示虛擬四肢，以示範節奏、肢體動作及鼓面動態，並提供可調節的節奏速度與自動錯誤檢測功能。一項與教學影片的比較性研究顯示，MR-Drum 顯著提升了錯誤率與節奏準確度，並在理解能力、技能發展與使用者體驗方面獲得顯著較高的偏好，所有受試者皆更偏好 MR-Drum 作為學習工具。

Learning drumming is challenging because multiple rhythms must be performed independently and simultaneously using both hands and feet. We conducted two formative studies to understand: 1) professional drumming instructors' teaching methods, and 2) drummers' current self-learning practices and pain points. All instructors deconstructed complex rhythms and limb movements and then used structured progression to teach drumming, which has not been explored by HCI research to date. Based on these findings, we developed a novel micro-progression learning framework for novice drummers that divides and structures \\\\textit{comprehension progression (drum sequence and rhythm)} and \\\\textit{limb coordination progression} into 16 stages. We also designed MR-Drum, a mixed-reality system that provides a first-person view of virtual limbs to demonstrate rhythm, limb, and drum surface dynamics, with adjustable tempo and automatic error detection. A summative user study vs. instructional videos showed that MR-Drum significantly improved error rate and timing accuracy, was significantly preferred for comprehension, skill development, and user experience, and was preferred overall by all participants.