methods: 作者提供了48首职业爵士乐 double bass手的手记谱和相关的metadata，包括Audio stem、Score、Performance-aligned MIDI和 markers for musical form。
results: 通过对 FiloBass 谱系进行 contrastive 分析，作者发现了一些关键的爵士乐 double bass 演奏技巧，并且与现有的教学方法进行比较。Abstract
We present FiloBass: a novel corpus of music scores and annotations which focuses on the important but often overlooked role of the double bass in jazz accompaniment. Inspired by recent work that sheds light on the role of the soloist, we offer a collection of 48 manually verified transcriptions of professional jazz bassists, comprising over 50,000 note events, which are based on the backing tracks used in the FiloSax dataset. For each recording we provide audio stems, scores, performance-aligned MIDI and associated metadata for beats, downbeats, chord symbols and markers for musical form. We then use FiloBass to enrich our understanding of jazz bass lines, by conducting a corpus-based musical analysis with a contrastive study of existing instructional methods. Together with the original FiloSax dataset, our work represents a significant step toward a fully annotated performance dataset for a jazz quartet setting. By illuminating the critical role of the bass in jazz, this work contributes to a more nuanced and comprehensive understanding of the genre.
摘要
我们现在发布了FiloBass：一个新的音乐谱和注释集，专注于爵士乐伴奏中重要 yet often overlooked的double bass角色。受最近关于独奏者的工作所 inspirited，我们提供了48名职业爵士乐 bassist的手动验证 транскрип，包括超过50,000个音 Event，基于FiloSax数据集中的 backing tracks。每个录音都提供了音质 stem，谱表，与 markers for musical form 的表示，以及相关的metadata。我们使用FiloBass来推广我们对爵士乐 bass line的理解，通过对现有的教学方法进行相比研究。与原始 FiloSax数据集一起，我们的工作表示了一个完整的表演数据集的 jazz quartet 设置。通过推照爵士乐中的重要性，我们的工作对爵士乐领域的理解做出了重要贡献。
Acousto-optic reconstruction of exterior sound field based on concentric circle sampling with circular harmonic expansion
results: 对比 conventinal 重建方法，提出的方法在数字实验和实际实验中具有更高的准确性，同时使用的抽样数据量很少。Abstract
Acousto-optic sensing provides an alternative approach to traditional microphone arrays by shedding light on the interaction of light with an acoustic field. Sound field reconstruction is a fascinating and advanced technique used in acousto-optics sensing. Current challenges in sound-field reconstruction methods pertain to scenarios in which the sound source is located within the reconstruction area, known as the exterior problem. Existing reconstruction algorithms, primarily designed for interior scenarios, often exhibit suboptimal performance when applied to exterior cases. This paper introduces a novel technique for exterior sound-field reconstruction. The proposed method leverages concentric circle sampling and a two-dimensional exterior sound-field reconstruction approach based on circular harmonic extensions. To evaluate the efficacy of this approach, both numerical simulations and practical experiments are conducted. The results highlight the superior accuracy of the proposed method when compared to conventional reconstruction methods, all while utilizing a minimal amount of measured projection data.
摘要
通过声光相互作用，声学探测提供了一种不同于传统麦克风数组的方法。声场重建是声学探测中的一种先进技术，但现有的声场重建方法在外部场景下存在许多挑战。这篇论文介绍了一种新的外部声场重建方法，该方法基于圆形弧形抽样和二维外部声场重建方法。为评估该方法的有效性，该论文进行了数值仿真和实验室实验。结果表明，该方法比传统重建方法更高精度，同时只需要使用 minimal amount of measured projection data。