作为短段非线性特征的重复图片嵌入,用于使用空气,骨和喉麦克风进行多式扬声器识别
K Khadar Nawas1, A Shahina2, Keshav Balachandar2
1School of Computer Science and Engineering, Vellore Institute of Technology, Chennai, Tamilnadu, 600127, India.
Scientific reports
|May 31, 2024
概括
本研究介绍了重复图 (RP) 嵌入作为说话者识别的新型,非线性特征. 这些嵌入式有效地捕捉了独特的声道动态,以便在不同语音传输模式中准确识别扬声器.
科学领域:
- 语音处理和声学学
- 生物系统中的非线性动力学
- 机器学习用于生物识别.
背景情况:
- 语音的产生涉及到一个非线性声道系统 (VT).
- 扬声器特征通常使用线性光谱特征来建模.
- 视听系统的非线性动态在扬声器识别方面还没有得到充分的研究.
研究的目的:
- 建议重复图 (RP) 嵌入作为独立的,非线性扬声器歧视特征.
- 评估RP嵌入式在不同语音传输模式 (空气,骨头,喉) 中用于扬声器识别的有效性.
- 评估使用RP嵌入式的单模和多模系统的性能.
主要方法:
- 使用了两个数据集:TIMIT语音语料库和一个辅音-母音单调音节数据集.
- 作为非线性特征的使用循环图 (RP) 嵌入.
- 使用单模 (空气,骨头,喉) 和多模 (双模,三模) 系统进行了闭幕扬声器识别实验.
主要成果:
- 在RP嵌入式上训练的单模系统实现了高精度:空气 (95.81%),骨头 (98.18%) 和喉 (99.74%).
- 最好的三模系统 (空气-骨-喉) 达到99.84%的准确率,与使用光谱图和MFCCs的系统相美.
- 双模骨喉系统实现了98.84%的准确性,在没有空气导通的情况下证明了有效性.
结论:
- RP嵌入是显著的非线性特征,能够独立识别扬声器.
- 声道系统 (VT) 的非线性动力学,通过RP嵌入来捕捉,是高度扬声器特定的.
- 这种非线性特征表示具有推动扬声器和语音识别技术的潜力.
相关概念视频
Receiver Operating Characteristic Plot
137
A ROC (Receiver Operating Characteristic) plot is a graphical tool used to assess the performance of a binary classification model by illustrating the trade-off between sensitivity (true positive rate) and specificity (false positive rate). By plotting sensitivity against 1 - specificity across various threshold settings, the ROC curve shows how well the model distinguishes between classes, with a curve closer to the top-left corner indicating a more accurate model. The area under the ROC curve...
137
Classification of Signals
441
In signal processing, signals are classified based on various characteristics: continuous-time versus discrete-time, periodic versus aperiodic, analog versus digital, and causal versus noncausal. Each category highlights distinct properties crucial for understanding and manipulating signals.
A continuous-time signal holds a value at every instant in time, representing information seamlessly. In contrast, a discrete-time signal holds values only at specific moments, often denoted as x(n), where...
A continuous-time signal holds a value at every instant in time, representing information seamlessly. In contrast, a discrete-time signal holds values only at specific moments, often denoted as x(n), where...
441
Perceiving Loudness, Pitch, and Location
205
The human brain perceives pitch through two primary mechanisms reflected in place theory and frequency theory. Each mechanism describes how sound waves are interpreted as specific pitches by the brain, offering insights into the intricate processes of auditory perception.
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by...
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by...
205
Residual Plots
4.6K
A residual plot is a statistical representation of data used to analyze correlation and regression results. It helps verify the requirements for drawing specific conclusions about correlation and regression. To obtain the residual plot, first, the residual for each data value is calculated, which is simply the vertical distance between the observed and the predicted value obtained from the regression equation.
When the residual values are plotted against the variable x, it is called a residual...
When the residual values are plotted against the variable x, it is called a residual...
4.6K
Determination of Expected Frequency
2.2K
Suppose one wants to test independence between the two variables of a contingency table. The values in the table constitute the observed frequencies of the dataset. But how does one determine the expected frequency of the dataset? One of the important assumptions is that the two variables are independent, which means the variables do not influence each other. For independent variables, the statistical probability of any event involving both variables is calculated by multiplying the individual...
2.2K
Relative Frequency Histogram
5.4K
The relative frequency depicts the proportion of data points that have each value. The frequency tells the number of data points that have each value. Like the histogram, a relative frequency histogram also has the same shape with a horizontal scale (the x-axis), but the vertical scale (the y-axis) is marked with relative frequencies (percentages of the whole) instead of actual frequencies. A relative frequency histogram is a graphical representation of a frequency distribution where the...
5.4K


