CAREER: Extraction and Integration of Voice Source Features into the Acoustical Analysis of Spoken Affect

这个CAREER项目的重点是直接从录制的语音信号中提取声源，以增强说话者影响分析中的声学模型。该项目有四个主要研究目标。第一个目标是在不使用辅助设备（例如EGG）的情况下，从声学语音信号中创建语音源估计的新技术。这是通过开发评估声门质量的指标来实现的，并选择反映给定可用语音数据的声音源的最佳近似值的估计。第二个目标是语音源在时域和频域的自动参数化，允许对语音源的形状和特征进行量化分析。第三个目标是将参数化的声音源整合到描述说话者情感/情绪状态特征的声学框架中。目前由说话人情绪、欺骗和压力表征组成的数据库正在分析中，以纳入以前无法获得的声源特征。该项目的最终目标是为科学界创建和传播一套强大的语音源提取和分析工具，以鼓励并使各种形式的语音研究中的语音源参数分析成为可能。该项目通过提高评估声源估计质量的理论知识和提供增强声音声学模型的工具，为语音分析应用做出了巨大贡献。此外，该项目还允许为外联活动设计教育示范，重点是改善社区对科学和工程研究的接触，并增加代表性不足群体的参与。

This CAREER project is focused on voice source extraction directly from recorded speech signals for the enhancement of acoustical models in speaker affect analysis. The project has four primary research goals. The first goal is the creation of new techniques in voice source estimation from the acoustic speech signal without the use of auxiliary devices (e.g., EGG's). This is accomplished through the development of metrics for assessing glottal quality and choosing estimates that reflect the best approximation of the voice source given the available speech data. A second goal is the automated parameterization of the voice source in both the time and frequency domain allowing the shape and characteristics of the voice source to be quantified for analysis. The third goal is to integrate the parameterized voice source into an acoustical framework for describing the characteristics of a speaker's affective/emotional state. Current databases consisting of representations of speaker emotion, deception, and stress are under analysis for the incorporation of voice source features not previously available. The final goal of the project is the creation and dissemination of a robust set of extraction and analysis tools of the voice source to the scientific community to encourage and enable the analysis of voice source parameters in all forms of speech research. The project contributes greatly to speech analysis applications by enhancing the theoretical knowledge of assessing the quality of voice source estimates and providing the tools to enhance the acoustical models of the voice. Additionally, the project allows for the design of educational demonstrations for outreach activities focused on improving community exposure to science and engineering research and increasing the participation of underrepresented groups.