开源低成本声学鼻流量测量装置，可3D打印自研
Nosey: Open-source hardware for acoustic nasalance
- 3D打印开源硬件，支持自定义麦克风与材料
- 测得鼻流量值高于商用设备，但音位环境差异一致
- 适合语音研究者在低预算下开展鼻音量数据采集
我们介绍Nosey（Nasalance Open Source Estimation sYstem），一种低成本、可定制的3D打印声学鼻流量测量系统，已作为开源硬件发布（http://github.com/phoneticslab/nosey）。本文首先阐述系统的设计动机与原则，随后对比Nosey与商用鼻流量设备的表现。结果表明，Nosey测得的鼻流量值普遍高于商用设备，但不同音位环境间的差异程度具有可比性。我们还探讨了麦克风类型与不同材料对硬件性能的影响，以支持实验优化。结论认为，Nosey是商用鼻流量设备的灵活且经济的替代方案，并提出若干数据采集中的方法建议。
原文摘要 · Abstract (English)
We introduce Nosey (Nasalance Open Source Estimation sYstem), a low-cost, customizable, 3D-printed system for recording acoustic nasalance data that we have made available as open-source hardware (http://github.com/phoneticslab/nosey). We first outline the motivations and design principles behind our hardware nasalance system, and then present a comparison between Nosey and a commercial nasalance device. Nosey shows consistently higher nasalance scores than the commercial device, but the magnitude of contrast between phonological environments is comparable between systems. We also review ways of customizing the hardware to facilitate testing, such as comparison of microphones and different construction materials. We conclude that Nosey is a flexible and cost-effective alternative to commercial nasometry devices and propose some methodological considerations for its use in data collection.
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