为便携式多平台应用设计低成本的麦克风阵列
1Universidad de Santiago de Chile, Departamento de Ingeniería Informática, Santiago, Chile.
HardwareX
|October 27, 2025
概括
本研究介绍了一种用于声学成像的多功能,3D打印硬件设置,可同时进行多通道音频和视觉数据记录,用于精确的噪音源定位和分析.
科学领域:
- 声学 声学 在声学方面
- 信号处理 信号处理
- 仪器化 仪器化 仪器化
背景情况:
- 声学成像分析对于识别噪声源及其空间参数至关重要.
- 同时记录多通道的音频和视觉数据对于准确的声音本地化提出了重大技术挑战.
研究的目的:
- 开发一个具有成本效益的,可适应的硬件互连装置,用于多麦克风声学成像.
- 为了促进同时录制高保真音频和可选的视觉数据,用于噪声源分析.
主要方法:
- 设计一个模块化硬件系统,随时可用的组件和最小的PCB要求.
- 使用3D打印的基础进行可定制的便携式麦克风阵列配置.
- 实现一个用于16频道音频录制 (48kHz,32位) 和可选的深度摄像头数据采集的脚本.
主要成果:
- 开发的系统兼容USB 2.0,确保与计算机和开发板的广泛兼容性.
- 成功获取多通道音频和点云数据的证明.
- 使用反向方法进行后处理,使得噪声源表面参数和声功率近似的全息重建成为可能.
结论:
- 拟议的硬件设置为先进的声学成像应用提供了灵活和可访问的解决方案.
- 该系统简化了用于噪音源分析的多模式数据采集的复杂任务.
- 该方法支持精确的空间定位和声源的参数估计.
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