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1. 发明授权

US5950152A Method of changing a pitch of a VCV phoneme-chain waveform and apparatus of synthesizing a sound from a series of VCV phoneme-chain waveforms 失效
标题翻译：改变VCV音素链波形的音调的方法和从一系列VCV音素链波形合成声音的装置
公开(公告)号：US5950152A
公开(公告)日：1999-09-07
申请号：US933993
申请日：1997-09-19
申请人： Yasuhiko Arai , Hirofumi Nishimura , Toshimitsu Minowa , Ryou Mochizuki , Takashi Honda
发明人： Yasuhiko Arai , Hirofumi Nishimura , Toshimitsu Minowa , Ryou Mochizuki , Takashi Honda
IPC分类号： G10L11/04 , G10L13/06 , G10L13/08 , G10L21/04 , G01L5/04
CPC分类号： G10L13/08 , G10L21/04 , G10L13/04 , G10L21/013
摘要： A composite pitch pattern of an artificial waveform of a composite sound indicating characters is produced according to a general pitch pattern producing model, and a pitch pattern of a VCV phoneme-chain waveform of each of VCV phoneme-chains corresponding to the characters is produced from an actual voice sample. Each VCV phoneme-chain composed of a preceding vowel, a consonant and a succeeding vowel has a pitch fine structure and a pitch fluctuation. Thereafter, an overall inclination of the pitch pattern of each VCV phoneme-chain waveform is adjusted to that of a portion of the composite pitch pattern corresponding to the-same VCV phoneme-chain to overlap transitional portions of preceding and succeeding vowels in a changed pitch pattern of each VCV phoneme-chain waveform with those in the corresponding portion of the composite pitch pattern. Therefore, when changed pitch patterns of the VCV phoneme-chain waveforms are connected with each other, a synthesized sound of the characters can be obtained while the synthesized sound maintains a pitch fine structure and a pitch fluctuation.
摘要翻译：根据一般的音调模式产生模型产生指示字符的复合声音的人造波形的复合音调图案，并且从与该字符相对应的每个VCV音素链的VCV音素链波形的音调模式产生一个实际的语音样本。由前一元音，辅音和后续元音组成的每个VCV音素链具有音调精细结构和音调波动。此后，将每个VCV音素链波形的音调图案的总体倾斜度调整为与相同的VCV音素链对应的复合音调图形的一部分的整体倾斜度，以重叠的音调重叠前后元音的过渡部分每个VCV音素链波形的图案与复合间距图案的相应部分中的那些。因此，当VCV音素链波形的改变的音调图形彼此连接时，可以获得字符的合成声音，同时合成声音保持音调精细结构和音调波动。

2. 发明授权

US6035272A Method and apparatus for synthesizing speech 失效
标题翻译：语音合成方法及装置
公开(公告)号：US6035272A
公开(公告)日：2000-03-07
申请号：US897830
申请日：1997-07-21
申请人： Hirofumi Nishimura , Toshimitsu Minowa , Yasuhiko Arai
发明人： Hirofumi Nishimura , Toshimitsu Minowa , Yasuhiko Arai
IPC分类号： G10L13/08 , G10L13/06
CPC分类号： G10L13/07 , G10L13/04
摘要： A speech synthesizing apparatus for deforming and connecting speech pieces to synthesize speech has a speech waveform database for storing data of an accent type of a speech piece of a word or a syllable uttered with type-0 accent and type-1 accent, data of phonemic transcription of the speech piece and data of a position at which the speech piece can be segmented, an input buffer for storing a character string of phonemic transcription and prosody of speech to be synthesized, a synthesis unit selecting unit for retrieving candidates of speech pieces from the speech waveform database on the basis of the character string of phonemic transcription in the input buffer, and a used speech piece selecting unit for determining a speech piece to be practically used among the retrieved candidates according to an accent type of speech to be synthesized and a position in the speech at which the speech piece is used, thereby preventing degradation of a quality of sound when the speech piece is processed.
摘要翻译：用于使语音片段变形和连接以合成语音的语音合成装置具有语音波形数据库，用于存储以0型口音和1型口音发音的单词或音节的语音片段的重音类型的数据，音素数据语音片段的转录和可分割语音片段的位置的数据，用于存储要合成的语音转录和韵律的字符串的输入缓冲器，用于从语音片段中检索语音片段候选的合成单元选择单元基于输入缓冲器中的音素转录的字符串的语音波形数据库，以及用于根据要合成的语音的重音类型，在所检索的候选中确定实际使用的语音片段的使用语音片段选择单元，以及使用语音片段的语音中的位置，从而防止语音片段的音质降低被淘汰

3. 发明授权

US6125346A Speech synthesizing system and redundancy-reduced waveform database therefor 失效
标题翻译：语音合成系统和冗余减少波形数据库
公开(公告)号：US6125346A
公开(公告)日：2000-09-26
申请号：US985899
申请日：1997-12-05
申请人： Hirofumi Nishimura , Toshimitsu Minowa , Yasuhiko Arai
发明人： Hirofumi Nishimura , Toshimitsu Minowa , Yasuhiko Arai
IPC分类号： G10L13/08 , G10L13/06 , G10L19/00
CPC分类号： G10L13/07
摘要： A speech synthesizing system using a redundancy-reduced waveform database is disclosed. Each waveform of a sample set of voice segments necessary and sufficient for speech synthesis is divided into pitch waveforms, which are classified into groups of pitch waveforms closely similar to one another. One of the pitch waveforms of each group is selected as a representative of the group and is given a pitch waveform ID. The waveform database at least comprises a pitch waveform pointer table each record of which comprises a voice segment ID of each of the voice segments and pitch waveform IDs the pitch waveforms of which, when combined in the listed order, constitute a waveform identified by the voice segment ID and a pitch waveform table of pitch waveform IDs and corresponding pitch waveforms. This enables the waveform database size to be reduced. For each of pitch waveforms the database lacks, one of the pitch waveform IDs adjacent to the lacking pitch waveform ID in the pitch waveform pointer table is used without deforming the pitch waveform.
摘要翻译：公开了一种使用冗余降低波形数据库的语音合成系统。语音合成所需和足够的语音段的采样集合的每个波形被划分为音调波形，其被分类为彼此非常相似的音调波形组。选择每组的音调波形之一作为组的代表，并给出音调波形ID。波形数据库至少包括音调波形指针表，其每个记录包括每个语音段的语音段ID和音调波形ID，当音调波形以列出的顺序组合时，音调波形ID构成由语音识别的波形段ID和音调波形ID和对应的音调波形的音调波形表。这样可以减小波形数据库的大小。对于数据库缺少的每个音调波形，使用与音调波形指针表中的缺乏音调波形ID相邻的音调波形ID之一，而不使音调波形变形。

4. 发明授权

US06438522B1 METHOD AND APPARATUS FOR SPEECH SYNTHESIS WHEREBY WAVEFORM SEGMENTS EXPRESSING RESPECTIVE SYLLABLES OF A SPEECH ITEM ARE MODIFIED IN ACCORDANCE WITH RHYTHM, PITCH AND SPEECH POWER PATTERNS EXPRESSED BY A PROSODIC TEMPLATE 失效
标题翻译：语音合成的方法和装置，其中表示按照前置模式表示的语音，音调和语音功率模式修改的语音项目的相应语句的波形段
公开(公告)号：US06438522B1
公开(公告)日：2002-08-20
申请号：US09404264
申请日：1999-09-22
申请人： Toshimitsu Minowa , Hirofumi Nishimura , Ryo Mochizuki
发明人： Toshimitsu Minowa , Hirofumi Nishimura , Ryo Mochizuki
IPC分类号： G10L1300
CPC分类号： G10L13/08 , G10L13/04
摘要： A method and apparatus for speech synthesis utilize a plurality of stored prosodic templates, each having been generated based on a series of enunciations of a single syllable executed in accordance with the rythm, pitch and speech power variations of an enunciated sample speech item, whereby the templates express rythm, speech power and pitch characteristics of respectively different sample speech items. Data representing an object speech item are converted to a sequence of acoustic waveform segments which respectively express the syllables of the speech item, the number of morae (syllable intervals) and the accent type of the speech item are judged and a prosodic template having the same number of morae and accent type is selected, and waveform shaping is applied to the waveform segments such as to match the rythm, speech power and pitch characteristics of the object speech item to those expressed by the selected prosodic template. The shaped acoustic waveform segments are then linked to form a continuous acoustic waveform, thereby obtaining synthesized speech which closely resembles natural speech.
摘要翻译：一种用于语音合成的方法和装置利用多个存储的韵律模板，每个模拟模板已经基于根据阐明的样本语音项目的节奏，音调和语音功率变化执行的单个音节的一系列发音而产生，模板分别表示不同样本语音项的节奏，语音功率和音调特征。表示对象语音项目的数据被转换成分别表示语音项目的音节的声音波形段的序列，判断语音项目的morae（音节间隔）和重音类型的数量，并且具有相同的韵律模板选择morae和重音类型的数量，并且波形整形被应用于波形段，以便将对象语音项的节奏，语音功率和音调特性与由所选择的韵律模板表达的节奏，语音功率和音调特性相匹配。形状的声波形段然后被链接以形成连续的声波形，从而获得非常类似于自然语音的合成语音。

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