提取基于一般化的S转换的语音信号的语音谱图
1College of Computer Science and Technology, Xinjiang University, Urumqi, Xinjiang, China.
PloS one
|January 13, 2025
概括
本研究介绍了用于灵活语音谱图分析的一般化S变换. 它允许可调节的时频分辨率,增强语音识别和特征提取.
科学领域:
- 信号处理 信号处理
- 时间频率分析
背景情况:
- 传统的谱图提取方法往往缺乏可调节的时频分辨率.
- 语音识别和分离应用需要具有不同分辨率的光谱图.
研究的目的:
- 介绍了用于灵活语音谱图生成的一般化S变换.
- 通过可调节的参数增强传统的斯托克威尔变换 (S-变换).
主要方法:
- 通过结合低通波器和两个可调节的参数,开发了通用的S变换.
- 修改了S变换器的高斯窗口函数,以实现可定制的时间频分辨率.
主要成果:
- 一般化的S变换灵活地产生了具有不同分辨率的光谱图.
- 通过与合成和真实语音数据的模拟来证明可行性和有效性.
结论:
- 概括的S变换是获得语音信号谱图的可行和有效方法.
- 这种方法显示了语音特征提取和语音识别的潜力,特别是在通用的基本频率配置文件中.
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