普通话陈述句的音高分析
发布时间：2018-12-18 14:19
【摘要】：本研究基于大规模语料库,通过剥离声调等因素对音高的影响,逐步揭露出韵律结构因素对汉语普通话陈述句音高变化的作用。并在研究结论的基础上,通过对大规模语料库进行相关参数的统计建模,使用模型对语句音高进行预测,并将预测结果应用到合成语音,通过MOS评测来验证研究结论的正确性。本文的研究内容主要包括语调和字调两个方面。语调方面,本文将韵律层级结构和声调音域的概念相结合,提出了音域箱及其相关概念。本文通过统计分析考察了音域箱的特点,并根据分析结果建立高音线-低音线预测模型。在已知韵律结构和重音分布的前提下,该模型可以预测普通话陈述句的语调走势。研究表明,在音域父子箱中,(1)子级箱的低线具有阶梯式下行性。(2)子级箱的高线具有S-U(重音-非重音)两级性。重音级高线明显高于非重音级高线。(3)子级箱低线的阶梯式下行性和音域箱的层级嵌套性导致音高重置更可能发生在等级较高的韵律边界处,并且边界等级越高重置幅度越大。字调方面,本文详细分析了各个调类在不同语流环境中的调型,以及前字调类对本调调型的影响,并根据分析结果建立调型预测模型,在已知声调音域和音节类型的前提下,用以预测音节的调型曲线。研究表明,(1)浊音声母和零声母音节的调型受前音节声调类型影响较大,清音声母音节的调型受前音节声调类型影响较小。(2)前音节的调型段末尾如果具有高音特征,那么本音节的基频段起始点音高较高；前音节的调型段末尾如果具有低音特征,那么本音节的基频段起始点音高较低。(3)轻声的性质与其他几个调类不同,它的调型和调值是依赖前音节的声调类型而存在的。最后,本文结合上述两个预测模型,建立了陈述句音高曲线预测模型,在已知句子韵律结构和重音分布的前提下,用以预测普通话陈述句的音高曲线。将预测结果用于语音合成后得到了自然的合成效果,说明本文的研究结果是合理的。
[Abstract]:Based on the large scale corpus, this study reveals the effect of prosodic structure on the pitch of Chinese Putonghua declarative sentences by stripping the tone and other factors on the pitch. On the basis of the conclusion of the study, through the statistical modeling of the related parameters of large-scale corpus, the pitch of sentences is predicted by using the model, and the prediction results are applied to the synthetic speech, and the correctness of the research conclusions is verified by MOS evaluation. This paper mainly includes two aspects: intonation and tone. In the aspect of intonation, this paper combines the concept of prosodic hierarchy with the concept of tone range, and puts forward the range box and its related concepts. In this paper, the characteristics of the range box are investigated by statistical analysis, and the prediction model of the treble line and the bass line is established according to the result of the analysis. On the premise of known prosodic structure and stress distribution, the model can predict the intonation trend of Putonghua declarative sentences. The results show that: (1) the lower line of the sub-box has the stepwise descending property, and (2) the high line of the sub-stage box has S-U (stress unstressed) two-level property. The stress level high line is obviously higher than the unstressed level high line. (3) the step descending property of the lower line of the sub-level box and the hierarchical nesting of the range box lead to the pitch reset more likely to occur at the prosodic boundary of the higher grade. And the higher the boundary level, the larger the reset range. In terms of tone, this paper analyzes in detail the tone types of each tone class in different language flow environments, and the influence of the former tone type on the tone type. Based on the results of the analysis, a diatonic prediction model is established, which is based on the known tone range and syllable type. A phonic curve used to predict syllables. The results show that: (1) the tone types of turbid consonants and zero consonants are greatly influenced by the phonetic types of antecedent syllables, while those of the consonant syllables are less influenced by the phonetic types of presyllable syllables. (2) if there is a high tone characteristic at the end of the tone segments of the phonetic syllables, The starting point of the base band of this syllable is high pitch; If there is a low pitch at the end of the tone segment of the pre-syllable, the initial pitch of the base band of this syllable is low. (3) the nature of the soft tone is different from that of other tone classes, and its tone type and modulation value are dependent on the tone type of the prosyllabic. Finally, combining the above two prediction models, this paper establishes a pitch curve prediction model of declarative sentences, which can be used to predict the pitch curves of declarative sentences in Putonghua on the premise of known prosodic structure and stress distribution. After applying the prediction results to speech synthesis, the natural synthesis effect is obtained, which shows that the research results in this paper are reasonable.
【学位授予单位】：复旦大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：H116
本文编号：2385972
[Abstract]:Based on the large scale corpus, this study reveals the effect of prosodic structure on the pitch of Chinese Putonghua declarative sentences by stripping the tone and other factors on the pitch. On the basis of the conclusion of the study, through the statistical modeling of the related parameters of large-scale corpus, the pitch of sentences is predicted by using the model, and the prediction results are applied to the synthetic speech, and the correctness of the research conclusions is verified by MOS evaluation. This paper mainly includes two aspects: intonation and tone. In the aspect of intonation, this paper combines the concept of prosodic hierarchy with the concept of tone range, and puts forward the range box and its related concepts. In this paper, the characteristics of the range box are investigated by statistical analysis, and the prediction model of the treble line and the bass line is established according to the result of the analysis. On the premise of known prosodic structure and stress distribution, the model can predict the intonation trend of Putonghua declarative sentences. The results show that: (1) the lower line of the sub-box has the stepwise descending property, and (2) the high line of the sub-stage box has S-U (stress unstressed) two-level property. The stress level high line is obviously higher than the unstressed level high line. (3) the step descending property of the lower line of the sub-level box and the hierarchical nesting of the range box lead to the pitch reset more likely to occur at the prosodic boundary of the higher grade. And the higher the boundary level, the larger the reset range. In terms of tone, this paper analyzes in detail the tone types of each tone class in different language flow environments, and the influence of the former tone type on the tone type. Based on the results of the analysis, a diatonic prediction model is established, which is based on the known tone range and syllable type. A phonic curve used to predict syllables. The results show that: (1) the tone types of turbid consonants and zero consonants are greatly influenced by the phonetic types of antecedent syllables, while those of the consonant syllables are less influenced by the phonetic types of presyllable syllables. (2) if there is a high tone characteristic at the end of the tone segments of the phonetic syllables, The starting point of the base band of this syllable is high pitch; If there is a low pitch at the end of the tone segment of the pre-syllable, the initial pitch of the base band of this syllable is low. (3) the nature of the soft tone is different from that of other tone classes, and its tone type and modulation value are dependent on the tone type of the prosyllabic. Finally, combining the above two prediction models, this paper establishes a pitch curve prediction model of declarative sentences, which can be used to predict the pitch curves of declarative sentences in Putonghua on the premise of known prosodic structure and stress distribution. After applying the prediction results to speech synthesis, the natural synthesis effect is obtained, which shows that the research results in this paper are reasonable.
【学位授予单位】：复旦大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：H116
【参考文献】
相关期刊论文 前2条
1 黄贤军;高路;杨玉芳;吕士楠;;汉语语调音高下倾的实验研究[J];声学学报(中文版);2009年02期
2 沈炯;汉语音高系统的有声性和区别性[J];语言文字应用;1995年02期
，本文编号：2385972
本文链接：https://www.wllwen.com/wenyilunwen/yuyanxuelw/2385972.html
