자연어 음성인식시스템을 위한 다중 이벤트 검출 정보 기반 발화검증 장치 및 방법
강점자, 송화전, 정훈, 박전규
- 9799350 (2017.10.24)
15MS9500, 언어학습을 위한 자유발화형 음성대화처리 원천기술 개발,
- An apparatus and method for verifying an utterance based on multi-event detection information in a natural language speech recognition system. The apparatus includes a noise processor configured to process noise of an input speech signal, a feature extractor configured to extract features of speech data obtained through the noise processing, an event detector configured to detect events of the plurality of speech features occurring in the speech data using the noise-processed data and data of the extracted features, a decoder configured to perform speech recognition using a plurality of preset speech recognition models for the extracted feature data, and an utterance verifier configured to calculate confidence measurement values in units of words and sentences using information on the plurality of events detected by the event detector and a preset utterance verification model and perform utterance verification according to the calculated confidence measurement values.