不同频段时域包络信息在言语识别中相对重要性的研究进展

发布时间：2018-04-18 17:10

本文选题：时域包络 + 频段　；参考：《上海交通大学学报(医学版)》2017年11期

【摘要】：言语信号中的时域信息根据其随时间变化的速率可以分为时域包络信息、周期性波动信息和时域精细结构信息。时域包络信息在言语识别中占有重要地位,是如今大部分人工耳蜗可以传递给其使用者的言语信息。研究表明不同频段的时域包络信息在言语识别中的作用并不相同。受测试材料、研究方法、聆听环境、提取时域包络信息的参数的影响,不同频段时域包络信息的相对重要性也会随之改变。文章主要就不同频段时域包络信息在言语识别中相对重要性的研究方法以及各种方法的优缺点和研究结果进行综述,并初步探讨了非声调语言与声调语言不同频段时域包络信息在言语识别中相对重要性差异的原因。
[Abstract]:The time domain information in speech signals can be divided into time domain envelope information periodic fluctuation information and time domain fine structure information according to the rate of change with time.Time domain envelope information plays an important role in speech recognition, and it is the speech information that most cochlear implants can transmit to their users.The results show that the time domain envelope information in different frequency bands plays a different role in speech recognition.The relative importance of time-domain envelope information in different frequency bands will be changed because of the influence of testing materials, research methods, listening environment and extracting parameters of time-domain envelope information.In this paper, the relative importance of time-domain envelope information in different frequency bands in speech recognition is reviewed, as well as the advantages and disadvantages of various methods and the results.The reason why the time domain envelope information in different frequency bands of non-tone language and tone language is different in speech recognition is discussed.
【作者单位】：上海交通大学附属第六人民医院耳鼻咽喉头颈外科上海交通大学医学院耳鼻咽喉科研究所;
【基金】：上海市教育委员会高峰高原学科建设计划(20152526) 国家自然科学基金面上项目(81771015) 促进市级医院临床技能与临床创新三年行动计划(16CR4027A)~~
【分类号】：R764

【相似文献】