We present the novel use of a neuroimaging technique, magnetoenceph-alography (MEG), for examining therapy-related changes in neural activity during a speech and a non-speech motor task in children with speech sound d...We present the novel use of a neuroimaging technique, magnetoenceph-alography (MEG), for examining therapy-related changes in neural activity during a speech and a non-speech motor task in children with speech sound disorders (SSD). Nine children (mean age = 4.2 years) with SSD were scanned in the MEG before and after an eight-week course of intensive motor speech therapy. MEG tasks involved an oromotor and a syllable production task. MEG analyses identified significant post-therapy changes in brain regions related to oromotor control and speech production. Behavioral assessments showed significant improvements on measures of motor speech skills and articulation following intervention. This is the first demonstration of the ability of MEG to: 1) capture brain activations resulting from oromotor movements and simple syllable production in young children, and 2) capture brain changes related to speech therapy. As the findings from this study are promising, we discuss directions for the design of future studies to further examine specific neural dysfunctions in speech sound disorders.展开更多
It is well known that most Chinese nonEnglish majors can't understand the English materials they have heard,but they do understand them if the materials are in written form.Though there may be a lot of reasons (Su...It is well known that most Chinese nonEnglish majors can't understand the English materials they have heard,but they do understand them if the materials are in written form.Though there may be a lot of reasons (Such as phonological and psychological ones),this paper covers the influence of sound changes in connected speech upon the learners' listening comprehension.Non-English majors can improve their listening comprehension,to some degrees,by getting familiar with and being practiced in sound-changes in a flow of speech,with the help of a good attitude towards sound-changes in English speeches.展开更多
A novel visualized sound description, called sound dendrogram is proposed to make manual annotation easier when building large speech corpora. It is a lattice structure built from a group of "seed regions" and throu...A novel visualized sound description, called sound dendrogram is proposed to make manual annotation easier when building large speech corpora. It is a lattice structure built from a group of "seed regions" and through an iterative procedure of mergence. A simple but reliable extraction method of "seed regkms" and advanced distance metric are adopted to construct the sound dendrogram, so that it can present speech's structure character ranging from coarse to fine in a visualized way. Tests show that all phonemic boundaries are contained in the lattice structure of sound dendrogram and very easy to identify. Sound dendrogram can be a powerful assistant tool during the process of speech corporals manual annotation.展开更多
目的将简版汉化言语空间音质听力量表(Chinese translation of twelve-item version of SSQ,C-SSQ12)应用于老年健康体检中的听力评估,分析老年人不同年龄段和不同性别的听力损失情况,为临床筛查老年性聋(age related hearing loss or p...目的将简版汉化言语空间音质听力量表(Chinese translation of twelve-item version of SSQ,C-SSQ12)应用于老年健康体检中的听力评估,分析老年人不同年龄段和不同性别的听力损失情况,为临床筛查老年性聋(age related hearing loss or presbycusis,ARHL)提供线索。方法选取2021年11月~2022年6月我院健康体检的老年人,分为60~69岁组、70~79岁组、80岁及以上组,询问老年人是否感觉有听力下降,并指导其自填C-SSQ12量表。均数比较用t检验及方差分析;计数资料比较用χ2检验分析;年龄与三因子评分用线性回归分析。结果有47.2%的老年人自感有听力下降;C-SSQ12量表言语因子、空间因子、音质因子与年龄呈负相关(P<0.05);各年龄段C-SSQ12量表总分及各因子评分均有显著差异(P<0.05);将量表总分≤6.5分定义为听力残疾,不同年龄段听力残疾率为60~69岁2.7%、70~79岁为9.3%、80岁及以上36.8%,总体为8.4%;不同性别听力残疾率为女性7.3%、男性9.4%,男性听力残疾率大于女性,但差异无统计学意义(P>0.05)。结论近一半的老年人自感有不同程度的听力下降,量表评估后听力残疾总现残率为8.4%,年龄越大,C-SSQ12量表中各因子评分越低,听力残疾现残率越高;C-SSQ12可动态、大范围评估老年人在复杂环境中听力情况,经济、高效,量表评分较低或评分较以前下降可为ARHL提供线索。展开更多
为提高复杂场景下的听障患者的语言理解度,本文提出一种仿人耳听觉的助听器双耳声源定位算法。算法首先借鉴耳蜗分频特性和听觉掩蔽特性,将声音信号进行多通道分解,并提取人耳敏感频带的信号进行双耳时间差(Interaural Time Differe...为提高复杂场景下的听障患者的语言理解度,本文提出一种仿人耳听觉的助听器双耳声源定位算法。算法首先借鉴耳蜗分频特性和听觉掩蔽特性,将声音信号进行多通道分解,并提取人耳敏感频带的信号进行双耳时间差(Interaural Time Difference,ITD)估计;然后基于人耳哈斯效应,提取有效的ITD信息;最后采用头相关模型,将ITD转化为声源方向信息。同时,为了改善混响和多干扰声场景下的声源定位能力,本文提出一种多通道的加权联合策略。仿真和场景测试实验表明,算法的抗干扰性强,定位精度高。而且,在7名受试者的理解度测试中,同现有的助听器增强算法相比,结合定位算法的语音增强算法达到3—5dB的性能改善。展开更多
文摘We present the novel use of a neuroimaging technique, magnetoenceph-alography (MEG), for examining therapy-related changes in neural activity during a speech and a non-speech motor task in children with speech sound disorders (SSD). Nine children (mean age = 4.2 years) with SSD were scanned in the MEG before and after an eight-week course of intensive motor speech therapy. MEG tasks involved an oromotor and a syllable production task. MEG analyses identified significant post-therapy changes in brain regions related to oromotor control and speech production. Behavioral assessments showed significant improvements on measures of motor speech skills and articulation following intervention. This is the first demonstration of the ability of MEG to: 1) capture brain activations resulting from oromotor movements and simple syllable production in young children, and 2) capture brain changes related to speech therapy. As the findings from this study are promising, we discuss directions for the design of future studies to further examine specific neural dysfunctions in speech sound disorders.
文摘It is well known that most Chinese nonEnglish majors can't understand the English materials they have heard,but they do understand them if the materials are in written form.Though there may be a lot of reasons (Such as phonological and psychological ones),this paper covers the influence of sound changes in connected speech upon the learners' listening comprehension.Non-English majors can improve their listening comprehension,to some degrees,by getting familiar with and being practiced in sound-changes in a flow of speech,with the help of a good attitude towards sound-changes in English speeches.
文摘A novel visualized sound description, called sound dendrogram is proposed to make manual annotation easier when building large speech corpora. It is a lattice structure built from a group of "seed regions" and through an iterative procedure of mergence. A simple but reliable extraction method of "seed regkms" and advanced distance metric are adopted to construct the sound dendrogram, so that it can present speech's structure character ranging from coarse to fine in a visualized way. Tests show that all phonemic boundaries are contained in the lattice structure of sound dendrogram and very easy to identify. Sound dendrogram can be a powerful assistant tool during the process of speech corporals manual annotation.
文摘目的将简版汉化言语空间音质听力量表(Chinese translation of twelve-item version of SSQ,C-SSQ12)应用于老年健康体检中的听力评估,分析老年人不同年龄段和不同性别的听力损失情况,为临床筛查老年性聋(age related hearing loss or presbycusis,ARHL)提供线索。方法选取2021年11月~2022年6月我院健康体检的老年人,分为60~69岁组、70~79岁组、80岁及以上组,询问老年人是否感觉有听力下降,并指导其自填C-SSQ12量表。均数比较用t检验及方差分析;计数资料比较用χ2检验分析;年龄与三因子评分用线性回归分析。结果有47.2%的老年人自感有听力下降;C-SSQ12量表言语因子、空间因子、音质因子与年龄呈负相关(P<0.05);各年龄段C-SSQ12量表总分及各因子评分均有显著差异(P<0.05);将量表总分≤6.5分定义为听力残疾,不同年龄段听力残疾率为60~69岁2.7%、70~79岁为9.3%、80岁及以上36.8%,总体为8.4%;不同性别听力残疾率为女性7.3%、男性9.4%,男性听力残疾率大于女性,但差异无统计学意义(P>0.05)。结论近一半的老年人自感有不同程度的听力下降,量表评估后听力残疾总现残率为8.4%,年龄越大,C-SSQ12量表中各因子评分越低,听力残疾现残率越高;C-SSQ12可动态、大范围评估老年人在复杂环境中听力情况,经济、高效,量表评分较低或评分较以前下降可为ARHL提供线索。
文摘为提高复杂场景下的听障患者的语言理解度,本文提出一种仿人耳听觉的助听器双耳声源定位算法。算法首先借鉴耳蜗分频特性和听觉掩蔽特性,将声音信号进行多通道分解,并提取人耳敏感频带的信号进行双耳时间差(Interaural Time Difference,ITD)估计;然后基于人耳哈斯效应,提取有效的ITD信息;最后采用头相关模型,将ITD转化为声源方向信息。同时,为了改善混响和多干扰声场景下的声源定位能力,本文提出一种多通道的加权联合策略。仿真和场景测试实验表明,算法的抗干扰性强,定位精度高。而且,在7名受试者的理解度测试中,同现有的助听器增强算法相比,结合定位算法的语音增强算法达到3—5dB的性能改善。