音声認識技術を用いた低消費電力端末におけるゼロクロスおよびLPC音声検出法の検討

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2021/12/01

タイトル(英語): A New Approach to Zero-Crossing and LPC Speech Detection for Low Power Terminals Using Speech Recognition Technology

著者名: 江馬　健太郎（法政大学大学院理工学研究科／理想科学工業（株）），安田　彰（法政大学大学院理工学研究科），大島　史也（法政大学大学院理工学研究科／東急テクノシステム（株））

著者名(英語): Kentaro Ema (Department of Electrical and Electronic Engineering Faculty of Science and Engineering, Hosei University/RISO KAGAKU CORPORATION), Akira Yasuda (Department of Electrical and Electronic Engineering Faculty of Science and Engineering, Hosei Uni

キーワード: 音声認識，音声検知，位置検知　　speech recognition，speech detection，position detection

要約(英語): In recent years, the number of devices that have the ability to use speech as a user interface has been increasing. This function has the defect that its power consumption is large. It is not a problem for devices that use an external power supply, but it becomes a serious problem for battery-powered devices such as internet of things (IoT) devices. To solve this, we propose an analog front-end circuit that combines speech detection and position detection. By using these two detections as triggers to turn on the speech recognition, we can identify that a person is nearby. This makes it possible to minimize the operation time of the speech recognition system and to improve the power consumption.This paper presents the validation of the zero-crossing method and the linear predictive coding (LPC) analysis method as the speech detection methods used in our proposed system. The analysis results show the relationship between power consumption, detection time, and detection accuracy.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.141 No.12 （2021） 特集Ⅰ：電気・電子・情報関係学会東海支部連合大会　特集Ⅱ：研究会優秀論文

本誌掲載ページ: 1424-1429 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/141/12/141_1424/_article/-char/ja/