音高处理方法的比较研究

声调的音高主要取决于基音中的频率（基频），基频负载着声调的主要区别特征。然而处理音高（基频）的方法有很多种。文章以普通话为例，通过T值法、LZ值法和基频直接分析法发现T值法、LZ值法分析声调的结果一样。但是基频直接分析法消除了对数取值本身带来的差异，结果更接近于声调本身。     

利用Eaton 法计算地层孔隙压力的不确定性分析

鉴于地层孔隙压力不确定性给钻井工程设计与施工带来的诸多困难,提出孔隙压力不确定度的概念,并对其不确定性进行定量表征。以目前应用最为广泛的Eaton 法为例,推导了孔隙压力不确定度的理论计算模型,模型考虑了数据测量误差、压实趋势线方程、Eaton 指数、上覆岩层压力以及静水压力等因素,并利用中国石化PG 地区综合矿场数据进行了算例分析。结果表明,该方法给出了孔隙压力不确定度的范围、影响主因素以及相关因素对不确定度的影响规律,且计算结果与录井钻井液密度、试气实测结果相符,证明提出的孔隙压力不确定性评价方法可行,计算结果真实、可靠。     

大学生英语双元音产出的实验研究

在不同语境的产出中,双元音位于音节尾时较其位于音节首和音节中时产出要好;8个双元音产出正确率总体上不高,只有48%,在单项双元音产出上,正确率最高的是/■Ι/（60%）,正确率最低的是/e/（42%）;受试双元音产出的声学特征是时长不够,两个音素没有轻重,两者之间的滑动不明显;男女受试在双元音产出水平上存在显著差异。     

宽带SAW-IDT衍射分析

在比较了现有分析声表面波（ＳＡＷ）叉指换能器（ＩＤＴ）衍射的各种方法后，提出了一种新方法，它直接从产生ＳＡＷ的ＩＤＴ上电荷分布出发，结合波传播特性及压电材料的各向异性，推导出了严格的ＳＡＷ波角谱表达式，再转化为时域脉冲响应，在频域对衍射的影响进行了宽带分析。对实际ＳＡＷ滤波器模拟计算表明，本算法精确简便，在频域与传播范围上皆具宽带特性     

Laughter in Conversation: Features of Occurrence and Acoustic Structure

Although human laughter mainly occurs in social contexts, most studies have dealt with laughter evoked by media. In our study, we investigated conversational laughter. Our results show that laughter is much more frequent than has been described previously by self-report studies. Contrary to the common view that laughter is elicited by external stimuli, participants frequently laughed after their own verbal utterances. We thus suggest that laughter in conversation may primarily serve to regulate the flow of interaction and to mitigate the meaning of the preceding utterance. Conversational laughter bouts consisted of a smaller number of laughter elements and had longer interval durations than laughter bouts elicited by media. These parameters also varied with conversational context. The high intraindividual variability in the acoustic parameters of laughter, which greatly exceeded the parameter variability between subjects, may thus be a result of the laughter context.     

因声求义——试论郑玄的语源学开基引绪

郑氏首揭"就音求义"的训诂原则及其广用声训推源与系源的训诂实践,在训诂学史及语源学史上产生了深远的影响。在注疏类作品中他的声训成就首屈一指,无人可及。     

'Tie, tied and tight': The expansion of /ai/ monophthongization in African-American and European-American speech in Memphis, Tennessee

This paper explores the distribution of /ai/ monophthongization in African-American and European-American speakers in Memphis, Tennessee. While often considered a feature characteristic of White Southern speech, /ai/ monophthongization has also been recorded in Black speech, both within and outside the South. However, expansion of glide-weakening to the less common pre-voiceless contexts has been considered unique to European-American dialects. Evidence of extensive glide-weakening in the African-American community in Memphis will be presented and compared to the degree and contexts of glide-weakening in the European-American community. The results will show that not only is /ai/ monophthongization a feature of Memphis speech generally, regardless of ethnicity, but that African-Americans in fact lead in glide-weakening in all contexts. The role of Southern identity in the expansion of /ai/ monophthongization is discussed as a critical component in the selection of features in both Black and White speech in the Memphis area.     

中国园林中的聆赏意识初探——以韵琴斋为例

审视了中国园林中聆赏意识的流变，归纳出中国园林自魏晋以来在“听觉”上的总体发展趋向：一方面，园林中的乐音作为声音中最人工化的类别，渐由喧转寂；另一方面，天然声在园林中成为可被感知、聆赏的要素。进而以北京北海韵琴斋（建于1757年）声环境设计为例进行剖析，其聆赏意匠也体现了以上趋向——真正的琴乐被摒除，水声被视若乐音来展现。此外按照国外新的研究视角，可发现韵琴斋设计细节与当代“声响-场所”设计有很多契合之处。     

在惯常的想象之外——论马塞尔·拜尔的长篇小说《狐蝠》

马塞尔·拜尔的《狐蝠》,自声音媒介切入纳粹历史,叙事以双声部交织推进。小说重点塑造了声学家赫尔曼·卡尔瑙作为纳粹罪恶参与者和战后社会中纳粹罪行反思者的形象。由之亦可体察作家在变化了的时代语境中面对纳粹历史时独特的文学处理方式及其意味。     

声电荷传输信号微处理器

声电荷传输（ＡＣＴ）信号微处理器（ＳＭＰ）是由软件控制的处理射频或微波信号的一种新的信号处理工具。功能类似于数字微处理器。ＡＣＴ／ＳＭＰ用数字指令实现编程，而处理射频或微波信号时义不用Ａ／Ｄ变换器。因此基于ＡＣＴ技术的ＳＭＰ比数字ＳＭＰ简单，功耗小。用ＡＣＴ２０２作成的ＳＭＰ，处理信号的频率范围为１～１６０ＭＨｚ，功耗仅为７Ｗ。