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1. 发明授权

US07231346B2 Speech section detection apparatus 有权
标题翻译：语音部分检测装置
公开(公告)号：US07231346B2
公开(公告)日：2007-06-12
申请号：US10401107
申请日：2003-03-26
申请人： Toshitaka Yamato , Hideki Kitao , Shinichi Iwamoto , Osamu Iwata , Masataka Nakamura , Yoshinao Oomoto
发明人： Toshitaka Yamato , Hideki Kitao , Shinichi Iwamoto , Osamu Iwata , Masataka Nakamura , Yoshinao Oomoto
IPC分类号： G10L15/20
CPC分类号： G10L25/78
摘要： A speech section detection apparatus capable of reliably detecting a speech section even for a word containing a glottal stop sound or for a word containing a succession of “s” column sounds or “h” column sounds (sounds in the third column or the sixth column in the Japanese Goju-on Zu syllabary table). A speech signal detected by a microphone is amplified by a line amplifier, and converted by an analog/digital converter into a digital signal which is then stored in a memory. The stored speech signal is fetched into a pitch detector where a speech pitch is extracted by processing the speech signal in time domain. A gate signal generator controls the gate signal based on the speech pitch, and a speech section signal generator controls a speech section signal based on the gate signal. A word can be extracted by segmenting the speech signal stored in the memory in accordance with the speech section signal.
摘要翻译：一种能够可靠地检测语音部分的语音部分检测装置，即使对于包含声门控停止声音的单词或包含一连串“s”列声音或“h”列声音的单词（第三列或第六列中的声音在日本的Goju-on Zu音节表）。由麦克风检测的语音信号由线路放大器放大，并由模拟/数字转换器转换成数字信号，然后存储在存储器中。存储的语音信号被提取到音调检测器中，其中通过在时域中处理语音信号来提取语音间距。门信号发生器基于语音音调控制门信号，并且语音段信号发生器基于门信号来控制语音区信号。可以通过根据语音部分信号分割存储在存储器中的语音信号来提取字。

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