Proposal of a Score-Based Sound Design Method for Electric Vehicles
電気自動車のための「楽譜化」サウンドデザイン手法の提案
- Delivery
- Available on this site
- Format
- Price
- Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880
- Publication code
- 20265168
- Paper/Info type
- Proceedings (Spring)
No.40-26
- Pages
- 1-5(Total 5 p)
- Date of publication
- May 2026
- Publisher
- JSAE
- Language
- Japanese
- Event
- 2026 JSAE Annual Congress (Spring)
Detailed Information
| Author(J) | 1) 久保 德理旺 |
|---|---|
| Author(E) | 1) Norio Kubo |
| Affiliation(J) | 1) EVサウンドスケープ |
| Affiliation(E) | 1) EV Soundscape |
| Abstract(J) | 電気自動車（EV）の静粛性は新たな車外・車内サウンドデザインの必要性を生み出している．本研究では，EVサウンドを「弦楽器」と捉え，時間構造や周波数変化を“楽譜化”することで，ブランド性と安全性の両立を図る新しい音響設計手法を提案する．まず，AVAS に求められる警告性とブランド表象の二律背反性を整理し，次に物理・心理音響パラメータを音楽的時間軸へ再構成する手法を示す．また，AI を用いた音質評価（AI-SQエンジニアリング）とクリエイティブサウンドデザインを橋渡しするプロセスを導入し，車内音ではASD（アクティブサウンドデザイン）適した楽譜化を通じ音の始動（期待），展開，移行の構造の効果，そして車外音のコンセプトサウンド“Energy”を事例として，AVASに適した音の”楽譜化”構造を提案する．これにより，機能性と感性価値を両立した EV サウンド設計の新しい枠組みを提示する． Translation |
| Abstract(E) | The quietness of electric vehicles (EVs) has created new demands for both exterior and interior sound design. This study proposes a novel acoustic design method that interprets EV sounds as string-instrument-like phenomena and structures their temporal and frequency characteristics using a musical score-based approach, aiming to achieve a balance between brand expression and safety. First, the contradictory requirements of warning functionality and brand representation inherent in AVAS are examined. Next, we present a method for reconstructing physical and psychoacoustic parameters along a musical time axis. Furthermore, we introduce a design process that bridges AI-based sound quality evaluation (AI-SQ engineering) and creative sound design. For interior sound, we demonstrate how a musical score-based framework can be applied to Active Sound Design (ASD) by analyzing the effectiveness of structured elements such as sound initiation (expectation), development, and transition. For exterior sound, we propose a score-based structural model suitable for AVAS, using the concept sound “Energy” as a case study. These approaches together present a new framework for EV sound design that integrates both functional requirements and emotional value. |
