在野外的语音分析:常见音频录音设备的有效性和预测准确性
Francesc Busquet1, Fotis Efthymiou2, Christian Hildebrand3
1Institute of Behavioral Science and Technology, University of St. Gallen, Torstrasse 25, St. Gallen, 9000, Switzerland. francesc.busquet@unisg.ch.
Behavior research methods
|May 30, 2023
概括
消费级语音录音对研究来说可能是不可靠的. 设备的近距离会影响振幅和基本频率,这可能会使情绪检测和其他领域的研究结果无效.
科学领域:
- 语音分析 语音分析
- 声学 声学 在声学方面
- 信号处理 信号处理
背景情况:
- 语音录音在研究和工业中越来越多地用于医学诊断和情绪检测等应用.
- 在自然环境中进行众包音频数据收集,使得跨多个学科的大规模研究成为可能.
- 用户级设备捕获的语音数据的可靠性和有效性对于准确的科学结论至关重要.
研究的目的:
- 调查普通消费级音频录音设备捕获的基本语音属性的可靠性和有效性.
- 评估麦克风距离对语音振幅和基本频率测量的影响.
- 评估由于记录设备特征而导致研究中偏见结论的可能性.
主要方法:
- 一个受控的实验室实验分析了1800个语音样本.
- 模拟分析不同记录设备和近距离的影响.
- 评估来自不同距离扬声器的设备的语音录音.
主要成果:
- 靠近扬声器的录音设备 (耳机,板) 膨胀振幅测量.
- 距离较近的设备 (笔记本电脑,智能手机) 降低了振幅,可以偏移基本频率.
- 这些振幅和频率扭曲可以导致在情绪检测等任务中得出无效的结论.
结论:
- 消费级音频录音设备在语音分析中引入了系统的偏见.
- 建立清晰的录音准则对于可靠和有效的语音数据收集至关重要.
- 机器学习方法在纠正扭曲的语音信号中的偏差方面表现有前途.
更多相关视频
相关概念视频
01:29Reliability and Validity
12.8K
Reliability and validity are two important considerations that must be made with any type of data collection. Reliability refers to the ability to consistently produce a given result. In the context of psychological research, this would mean that any instruments or tools used to collect data do so in consistent, reproducible ways.
12.8K
01:13Sensitivity, Specificity, and Predicted Value
517
In healthcare diagnostics, laboratory tests play a crucial role in identifying and diagnosing a wide range of medical conditions. However, interpreting test results is not always straightforward. An abnormal test result does not always confirm the presence of a disease, just as a normal result does not guarantee its absence. To assess the reliability of these diagnostic tools, healthcare practitioners rely on two key statistical indicators: sensitivity and specificity.
Sensitivity is the...
Sensitivity is the...
517