Chapter one 1. Definition of language There is no universally accepted definition of language. But one definition is more popular language is a system of arbitrary vocal symbols used for human communication.(语言是人类用 来交际的具有任意性的语音符号体系。)

小波分析是近十几年才发展起来并迅速应用到图像处理和语音分析等众多领域的一种 数学工具。它是继110多年前的傅立叶(Joseph Fourier)分析之后的一个重大突破,无论是对 古老的自然学科还是对新兴的高新技术应用学科都产生了强烈冲击

8.1键盘及其接口 8.2显示器接口 8.3打印机接口 8.4拨码盘及语音接口

一、连续信源的熵和互信息 二、信息率失真理论 三、标量量化编码 四、矢量量化编码 五、语音压缩编码 六、图象压缩编码

随着大规模集成电路和计算机技术的飞速发展,数字信号处理(DSP)技术已经渗 透到几乎各个领域,包括计算机语音学、计算机视觉、计算机多媒体技术、超文本 数据传输等各个领域,而用于进行数字信号处理的专用DSP芯片的性能价格比也在 惊人地增加。目前DSP的主要生产厂家有 Analog Devices,inc.公司、 Texas Instruments 公司、AT&T、 Motorala公司、NEC公司等,而笔者认为在诸多DSP生产厂家中, TI公司和ADI公司是比较突出的,他们将以其产品的独特性而成为DSP芯片市场 的主要领导者之一

1. Definition of tone Tones are pitch variations, which are caused by the differing rates of vibration of the vocal cords. 声调是由于声带振动的速率的不同而引起的音高变化

The importance of phonetic study 1) Phonetics is the science of speech sounds. It deals with the sound system of a language. A language consists of three important elements, namely, speech sounds, vocabulary and grammar. Speech

When we talk, we don't talk in single words but in groups of words spoken continuously. These groups of words which are closely connected in meaning and in grammar are called sense groups. sense group is tone-group-(语调群) in intonation. long sentence can be cut up into two or more tone-groups We may make a short pause after each group, but not during the group

We have seen that every word of two or more syllables, when said alone, has a stress on one of its syllables. This is called word-stress. But in connected speech we do not hear a stress on every word. Some words lose their stresses, especially when we talk quickly, other words keep their stresses and these stressed syllables form what is called sentence-stress

The length of a sound is the length of time during which it is held on continuously in a given word or phrase. The principal facts concerning length in English are given in the following rules: 203. Length of vowels 1. English vowels /i:/, /a: / /:/, /u:/, /a: /are longer than the other English vowels in similar context, i.e., when surrounded by the same sounds, and pronounced with the same degree of stress. Thus