基于语音共振峰的苏州学生英语单元音发音研究

运用测试语音共振峰频率的方法,比较苏州学生与标准英语发音者所发英语单元音语音在共振峰频率上的差异。根据共振峰频率与发音方法的对应关系发现:对于苏州与英语共有的单元音,苏州学生在某些音的发音方法上也存在一些问题;对于英语特有的单元音,苏州学生在某些音的发音方法上虽然仍存在一些问题,但对一些音的发音方法已能较好地掌握;苏州学生发的英语相近音及长短音共振峰数值非常接近,不像标准英语的共振峰数值有非常明显的区别。在此基础上,分别针对苏州男女发音情况制订了男女声英语单元音发音方法纠正表,为快速有效矫正方言区学生的英语发音提供有益的指导。     

基于半监督判别分析的语音情感识别(英文)

将基于多个嵌入图组合形式的半监督判别分析(SDA)以及核SDA(KSDA)应用于全监督的语音情感识别.在语音信号样本情感成分的预处理阶段,从样本语段中提取出多种特征及其统计参数,包括基音、过零率、能量、持续长度、共振峰和MFCC(Mel频率倒谱系数).在将样本特征送入分类器之前的维数约简阶段,使用经过参数优化的SDA或KSDA进行降维.Berlin语音情感数据库上的实验表明,在使用多类SVM分类器时的全监督语音情感识别中,SDA优于其他一些先进的基于谱图学习的维数约简算法,如LDA,LPP,MFA等,而KSDA通过核化的数据映射,能够取得比上述所有算法更好的识别效果.     

扬州学生英语单元音发音状况分析

本文作者运用测试语音共振峰频率的方法,系统比较了扬州学生与标准英语发音者所发英语单元音语音在共振峰频率上的差异.发现:对于扬州与英语共有的单元音,扬州学生在某些音的发音方法上也存在一些问题;对于英语特有的单元音,扬州学生在某些音的发音方法上虽然仍存在一些问题,但对一些音的发音方法已能较好地掌握;扬州学生发的英语相近音及长短音共振峰数值非常接近,不像标准英语的共振峰数值有非常明显的区别.上述发现为快速有效矫正方言区学生的英语发音提供了有益的指导.     

基于LPC汉语信号共振峰分析

本文基于线性预测技术（ＬＰＣ）,对语音信号的共振峰参数估值,实现语音合成。     

徐州学生英语单元音发音状况研究

本文运用测试语音共振峰频率的方法,系统比较了徐州学生与标准英语发音者所发英语单元音语音在共振峰频率上的差异.发现:(1)对于徐州与英语共有的单元音,徐州学生在某些音的发音方法上也存在一些问题;(2)对于英语特有的单元音,徐州学生在某些音的发音方法上虽然仍存在一些问题,但对一些音的发音方法已能较好地掌握;(3)徐州学生发的英语相近音及长短音共振峰数值非常接近,不像标准英语的共振峰数值有非常明显的区别.上述发现为快速有效地矫正方言区学生的英语发音提供了有益的指导.     

对话、念读两种说话状态下声纹特征变化的实验研究

在对话、念读两种说话状态下,对20位青年男性普通话语流中240个音段所包含的单元音[a]、[i]、[u]的共鸣方式、平均音高、音强等听觉特征,共振峰走向、强度、频率等频谱特征进行定性和定量分析.发现说话状态改变后个人的声纹特征有着不同程度的变化:听觉特征、共振峰强度特征的变化较大,共振峰走向和频率特征相对稳定.在被检测...     

听力障碍儿童复合元音发音实验研究

本论文试图利用现代语言学的方法,利用计算机语音分析设备和设施就听力障碍儿童复合元音发音状况进行分析,并通过对第一、第二共振峰频率数据进行归整,绘制声位图,确定每个复合元音的实际音值。在此基础上,总结其发音特点,分析成因,探讨相关的理论问题。     

基于共振原理的采矿工程本科教育教学研究

根据振幅共振的计算公式,从频率和阻尼系数的角度,分析了采矿工程本科教育教学的积极因素与消极因素。相应提出了认知共振、情感共振、互动共振的多元共振教学模式,阐述了实施多元共振教学模式的关键问题。     

乌兹别克斯坦留学生汉语一级元音学习研究

利用Praat语音软件,对乌兹别克斯坦留学生汉语一级元音习得的第一和第二共振峰进行测量,并绘制出乌兹别克斯坦留学生汉语一级元音格局图。通过格局图对乌兹别克斯坦留学生与汉语母语者一级元音的发音状况进行对比研究,进而提出一些教学建议。     

多脉冲激励线性预测参数矢量量化

介绍了多脉冲激励线性预测声码器的激励脉冲参数量大互相关函数搜索法。构造了线性预测系数参数及激励脉冲幅度参数矢量量化算法。实现了低码率音压缩编码。     

PITHC-SYNCHRONOUS ARTICULATORY SYNTHESIS INCORPORATED WITH THE INVERSE SOLUTION OF SPEECH PRODUCTION

ＩＮＴＲＯＤＵＣＴＩＯＮＳｙｎｔｈｅｓｉｓｏｆｎａｔｕｒａｌｓｐｅｅｃｈｓｏｕｎｄｓｗｉｔｈｌｅｓｓｃｏｎｔｒｏｌｐａｒａｍｅｔｅｒｓｈａｓｐｒａｃｔｉｃａｌｓｉｇｎｉｆｉｃａｎｃｅ ,ｅｓ ｐｅｃｉａｌｌｙｉｎｔｅｘｔ ｔｏ ｓｐｅｅｃｈ (ＴＴＳ)ｆｏｒｐｒｏｄｕｃｉｎｇｓｏｕｎｄｓｗｉｔｈａｒｔｉｆｉｃｉａｌｌｙｓｐｅｃｉｆｉｅｄｆｏｒｍａｎｔｔａｒｇｅｔｓａｎｄｓｃａｌｅｄｐｉｔｃｈｐａｒａｍｅｔｅｒｓｏｔｈａｔｔｈｅｔｉｍｂｒｅｏｆｓｐｅｅｃｈｏｕｔｐｕｔｃａｎｂｅａｒｂｉｔｒａｒｉｌｙｔｏｎ…     

Pithc-synchronous articulatory synthesis incorporated with the inverse solution of speech production

This paper presents a new proposal to synthesize natural sounds with less control parameters by combining the inverse speech production and pitch-synchronous articulatory synthesis. The pitch-synchronous excited Reflection-Type Line Analog (RTLA) model is employed as the synthesis filter. Multi-rate system sampling and dynamic scattering wave adjustment are used to handle the variable VT length and the acoustic continuity. The synthesizer is controlled by vocal-tract (VT) area functions. Given the targets of formant trajectories, the dynamic VT area function which is modeled by time variant VT length is derived using an inverse solution of speech production. A distinguishing feature of this method is that artificially specified formant trace can be precisely aimed in the synthetical sounds. Experimental results show that the formant target can be well matched by the synthetic sounds. Potential application to text-to-speech conversion of this method is discussed. Project supported by NSFC (69972046), and Zhenjiang Provincial Natural Science Foundation of China (698076).     

Application of formant instantaneous characteristics to speech recognition and speaker identification

This paper proposes a new phase feature derived from the formant instantaneous characteristics for speech recognition (SR) and speaker identification (SI) systems. Using Hilbert transform (HT), the formant characteristics can be represented by instantaneous frequency (IF) and instantaneous bandwidth, namely formant instantaneous characteristics (FIC). In order to explore the importance of FIC both in SR and SI, this paper proposes different features from FIC used for SR and SI systems. When combing these new features with conventional parameters, higher identification rate can be achieved than that of using Mel-frequency cepstral coefficients (MFCC) parameters only. The experiment results show that the new features are effective characteristic parameters and can be treated as the compensation of conventional parameters for SR and SI.     

基于声控游戏的儿童言语障碍康复系统设计

根据言语障碍儿童学习能力的发展,提出基于声控游戏的儿童言语障碍康复系统。该系统基于Visual C++语言开发,内容专门针对儿童言语障碍患者设计,将日常康复训练所使用的声学参数与游戏中的动画主角建立联系,使患儿在游戏中逐步锻炼言语能力,恢复正常功能。     

聋童语音的声学参数分析

为提供聋童在语言训练各阶段语音的声学参数,测查了不同听力损失聋童在语言训练过程中的元音参数变化,以及语言训练对各频率段参数的影响,并证明聋童经过语言训练可获得听力补偿,并提高语言能力     

基于大型隐马尔可夫模型的宽带语音丢帧补偿(英文)

研究了在语音传输过程中由于参数丢失导致语音质量急剧下降的丢帧补偿问题.利用大规模隐式马尔可夫模型对自适应多速率宽带语音编码(AMR-WB)的ISF参数进行建模,然后对丢失的ISF参数进行基于最小均方误差(MMSE)准则的最优估计,将估计的ISF参数和前帧的ISF参数进行加权以平滑估计值,得到补偿的ISF参数.在接收端,利用ISF参数的估计值进行语音合成.将本算法的合成语音和由G.722.2标准附件Ⅰ的基准补偿的合成语音进行比较,仿真结果表明,本补偿算法可以得到更好的性能,在频率加权谱失真和信噪比这2种评价准则上都有所改善,信噪比提高约2.41 dB,频率加权谱失真下降约0.885 dB,证明了该算法的有效性.     

The development of referential communication: Improving message accuracy by coordinating private speech with peer questioning

In this study, we examine the development of referential communicative regulation, incorporating the Vygotskian notion of private speech. From this perspective, private speech may serve a regulatory role when the child speaker is focused on what to say when speaking to others. In a longitudinal study carried out with 10 pairs of children with a mean age of 4.5, 6.5, and 8.5 years, we analyzed the relationship between the capacity of the child in the speaker role to modify messages, increasing their informative quality, the presence of private speech embedded in the messages, and the emergence of prior questions by the child in the listener role aimed at clarifying some aspect of the message. We found that the number of modified messages, the mean frequency of private speech in the messages, and the number of peer's questions all increase with age. Only in the case of the modified messages by the speaker did we find a triple interaction among age, use of private speech, and the presence of peer's questions. At 8.5 years, the presence of peer's questions and subsequent use of private speech appeared together for the majority of the modified messages. This was not the case at the ages 4.5 or 6.5. In line with Vygotsky's theses, private speech would play an important role to allow communicators to reflect on the quality of their communicative utterances, and to modify and improve them accordingly. In this process, the capacity to improve message accuracy by coordinating private speech with peer questioning clearly emerges with age.     

英语广告的文本分析:词汇组合与话语修辞的视角

从词汇层面对英语广告进行文体分析,主要包括简单词汇、杜撰词、修辞格等在英语广告中的运用。研究发现,英语广告中所用的词汇通过不同的修辞方式能够产生不同的意义。