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arXiv 2603.07584cs.SDcs.LGeess.AS
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分析驱动的发动机声音数据集程序化生成与嵌入式控制注释

Analysis-Driven Procedural Generation of an Engine Sound Dataset with Embedded Control Annotations

rdoerfler

Robin Doerfler, Lonce Wyse

AI总结:

提出一种分析驱动的框架,通过自适应音高谱分析提取真实录音中的谐波结构,驱动扩展参数化谐波加噪声合成器,生成带有精确时间对齐控制注释的发动机音频数据集,用于数据驱动的发动机声音建模。

摘要:

计算发动机声音建模是汽车音频行业的核心,尤其适用于主动声音设计应用和虚拟原型设计。新兴的数据驱动发动机声音合成方法需要大量标准化、干净的音频记录,并带有精确时间对齐的运行状态注释:由于高成本、专用测量设备要求和不可避免的噪声污染,这些数据难以获取。我们提出了一种分析驱动的框架,用于生成带有样本精确控制注释的发动机音频。该方法通过自适应音高谱分析从真实录音中提取谐波结构,进而驱动扩展参数化谐波加噪声合成器。利用该框架,我们通过多样化的控制轨迹和参数变化,将每个发动机的5-10分钟源音频扩展15-30倍,生成程序化发动机声音数据集(19.0小时,5,935个文件):一组带有样本精确RPM和扭矩注释的发动机音频信号,覆盖广泛的工作条件、信号复杂度和谐波轮廓。与真实录音的对比验证了合成数据保留了特征谐波结构,基于该数据集训练的基线可微合成网络证实了其适用于数据驱动的发动机声音建模。该数据集已公开发布,以支持发动机音色分析、控制参数估计和神经生成合成的研究。

英文摘要:

Computational engine sound modeling is central to the automotive audio industry, particularly for active sound design applications and virtual prototyping. Emerging data-driven engine sound synthesis methods require large volumes of standardized, clean audio recordings with precisely time-aligned operating-state annotations: data that is difficult to obtain due to high costs, specialized measurement equipment requirements, and inevitable noise contamination. We present an analysis-driven framework for generating engine audio with sample-accurate control annotations. The method extracts harmonic structures from real recordings through pitch-adaptive spectral analysis, which then drive an extended parametric harmonic-plus-noise synthesizer. With this framework, we augment 5-10 min of source audio per engine 15-30x via diverse control trajectories and parametric variation, producing the Procedural Engine Sounds Dataset (19.0 h, 5,935 files): a set of engine audio signals with sample-accurate RPM and torque annotations spanning a wide range of operating conditions, signal complexities, and harmonic profiles. Comparison against real recordings validates that the synthesized data preserves characteristic harmonic structures, and a baseline differentiable synthesis network trained on the dataset confirms its suitability for data-driven engine sound modeling. The dataset is released publicly to support research on engine timbre analysis, control parameter estimation, and neural generative synthesis.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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