用Pure Data复刻已停产的DL-4效果器，让电子乐作品《Summermood》可重新演出
Preserving Russek's "Summermood" Using Reality Check and a DeltaLab DL-4 Approximation
- 在Pure Data中模拟DL-4延迟设备的音色与功能
- 通过两段官方录音对比优化参数，提升复现精度
- 支持跨平台实时演奏，确保作品可持续表演
为延续现场电子音乐作品的演出能力，本文提出一套Pure Data程序包，用于重现安东尼奥·鲁塞克的《Summermood》（为低音长笛与现场电子音乐而作）。该作品原为DeltaLab DL-4延迟设备创作，包含针对该设备的特定记谱。本文在Pure Data中实现对DL-4声音特征与功能的近似，并通过比对乐谱标记与两段官方录音，进一步优化实现效果。该仿真模块被集成至基于Null Piece的实时演奏程序中，采用Reality Check框架进行回归测试。该程序包使《Summermood》可在不再使用已停产的DL-4设备的情况下重新投入现场演出。未来将持续测试以确保其在不同计算机环境及Pure Data更新下的兼容性。
原文摘要 · Abstract (English)
As a contribution towards ongoing efforts to maintain electroacoustic compositions for live performance, we present a collection of Pure Data patches to preserve and perform Antonio Russek's piece "Summermood" for bass flute and live electronics. The piece, originally written for the DeltaLab DL-4 delay rack unit, contains score markings specific to the DL-4. Here, we approximate the sound and unique functionality of the DL-4 in Pure Data, then refine our implementation to better match the unit on which the piece was performed by comparing settings from the score to two official recordings of the piece. The DL-4 emulation is integrated into a patch for live performance based on the Null Piece, and regression tested using the Reality Check framework for Pure Data. Using this library of patches, Summermood can be brought back into live rotation without the use of the now discontinued DL-4. The patches will be continuously tested to ensure that the piece is playable across computer environments and as the Pure Data programming language is updated.
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