Vital capacity & airflow measurement for voice evaluation: A vortex whistle system

肺活量

• 批准号: 10737248
• 负责人: Jordan Alexander Awan
• 金额: $ 65.68万
• 依托单位: UNIVERSITY OF CENTRAL FLORIDA
• 依托单位国家: 美国
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-09-01 至 2028-07-31
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/10737248
• 关键词: Abnormal coordination; Acoustics; Address; Air; Air Movements; Area; Automobile Driving; Benchmarking; Calibration; Characteristics; Child; Clinic; Clinical; Computer Models; Computer software; Computers; Cost Measures; Data; Detection; Development; Devices; Disease; Elderly; Electronics; Engineering; Equipment; Evaluation; Frequencies; Goals; Gold; Home; Individual; Investigation; Language; Larynx; Longevity; Maps; Measurement; Measures; Medial; Methodology; Methods; Modeling; Modification; Monitor; Operative Surgical Procedures; Outcome; Outcome Measure; Output; Paralysed; Pathologist; Patients; Periodicals; Phonation; Play; Production; Research; Respiratory System; Role; Science; Series; Signal Transduction; Speech; Spirometry; Statistical Methods; Surveys; Syringes; System; Techniques; Teletherapy; Testing; Time; Translating; Treatment outcome; Tube; United States; Validation; Variant; Vital capacity; Voice; Voice Disorders; Work; clinical application; clinical practice; computerized; cost; cost effective; design; human subject; improved; innovation; instrument; instrumentation; laboratory experiment; manufacture; mobile computing; physical model; platform-independent; portability; pressure; research clinical testing; respiratory; response; simulation; standard measure; success; technology platform; tool; trial comparing; vocal cord; young adult

PROJECT SUMMARY/ABSTRACT Comprehensive voice evaluation requires assessment of the essential subsystems, including the respiratory subsystem. However, surveys of assessment and treatment practices by speech-language pathologists (SLPs) both in and outside of the United States indicate that respiratory and aerodynamic measures are rarely used in the assessment of voice disorders, mainly due to lack of access to expensive equipment. The proposed series of studies seeks to overcome this serious deficiency in the voice assessment practice of SLPs by combining concepts and techniques from clinical voice science, acoustics, statistical methods, and aerodynamic engineering. The result will provide accurate, low-cost measures of respiratory capacity and phonatory airflow via the development and validation of a uniquely designed vortex whistle and accompanying signal analysis software. A vortex whistle is a non-mechanical, non-electronic device that provides a whistle frequency that varies proportional to the inlet airflow rate. When frequency is mapped to the inlet airflow rate, the area under the frequency-flow curve obtained from the vortex whistle can be used as an estimate of volume. Rather than a replacement for spirometry and other pneumotachometer-based aerodynamic instrumentation, our vortex whistle design is optimized to obtain accurate measures of vital capacity (VC) and mean phonatory airflow (PA) in sustained voicing that have important application to the assessment of respiratory and laryngeal function essential for effective voice production. The vortex whistle can be manufactured for a tiny fraction of the cost of pneumotachometer-based or other aerodynamic instrumentation. In addition, the platform-independent analysis software can be used with low-cost computers and can be easily translated to mobile platforms. The specific goals of this project are to: (1) develop a more complete understanding of the acoustic- aerodynamic capabilities of the vortex whistle via computational aeroacoustic (CAA) modeling, (2) assess hardware and software analysis modifications that can optimize the ability to provide accurate VC and PA estimates from the vortex whistle via physical aeroacoustic (PAA) modeling that incorporates an actuated syringe methodology for the production of highly controlled and repeatable airflows and volumes, (3) compare and correlate measures of VC and PA obtained via the vortex whistle system (VWS) with high-quality pneumotachometer-based aerodynamic instrumentation including the Koko SX 1000 spirometer and the Phonatory Aerodynamic System (PAS), (4) correlate voicing onset frequency-flow characteristics with underlying driving pressure (Psub), and (5) demonstrate the VWS as a noninferior alternative to “gold” standard pneumotachometer-based instrumentation for measures of VC and PA in groups of nondysphonic subjects across the lifespan and as a treatment outcome measure in a group of unilateral vocal fold paralysis (UVFP) patients pre- and post-surgical medialization.

项目摘要/摘要 全面的语音评估需要评估基本子系统，包括呼吸系统 子系统。但是，言语病理学家（SLP）对评估和治疗实践的调查 在美国内外表明，呼吸和空气动力学措施很少用于 评估语音障碍，这主要是由于无法使用昂贵的设备。提出的系列 研究试图通过结合来克服SLP语音评估实践的严重缺陷 临床语音科学，声学，统计方法和空气动力学的概念和技术 工程。结果将提供准确，低成本的呼吸能力和光态气流 通过开发和验证独特设计的涡流哨声和参与信号分析 软件。漩涡哨声是一种非机械，非电动设备，提供了一个哨声频率， 品种与入口气流速率成正比。当频率映射到进气流速率时 从涡旋哨声获得的频流曲线可以用作体积的估计。而不是一个 替代肺气测定法和其他气动尺度计的空气动力学仪器，我们的涡流 优化哨声设计以获得对生命力（VC）和平均光子气流（PA）的准确测量 在持续的声音中，在评估呼吸和喉功能方面具有重要应用 有效的语音生产至关重要。可以以一小部分成本制造涡流哨声 基于气齿仪或其他空气动力学仪器。另外，无关 分析软件可以与低成本计算机一起使用，并且可以轻松地转换为移动平台。 该项目的具体目标是：（1）对声学 - 通过计算空声（CAA）建模，（2）评估涡流哨的空气动力学能力 硬件和软件分析修改，可以优化提供准确的VC和PA的能力 通过物理气声（PAA）建模从涡流哨的估计，该建模融合了激活 用于生产高度控制和可重复的气流和体积的注射器方法，（3）比较 并相关的VC和PA的度量通过高质量获得的Vortex Whistle System（VWS）获得 基于气齿仪的空气动力学仪器，包括Koko SX 1000肺活量计和 语音空气动力学系统（PAS），（4）将发声频率流的发音与 潜在的驾驶压力（PSUB），（5）证明了大众作为“黄金”的非偏远替代品 基于标准的气动仪的仪器，用于非次次传感的VC和PA的测量 整个寿命的受试者，作为一组单方面声带瘫痪的治疗结果度量 （UVFP）患者术前和手术后内侧化。