Papers

반향 음성 신호의 하모닉 모델링을 이용한 음질 예측 알고리즘

Domestic Journal
2011~2015
작성자
한혜원
작성일
2013-09-01 00:34
조회
330
Authors : Jae-Mo Yang, Weige Chen, Z. Zhang, Hong-Goo Kang

Year : 2013.11

Publisher / Conference : 방송공학회논문지

Volume : 18, issue.6

Page : 919-926

실내 환경에서 음성 신호는 음향 전달 함수에 의한 반향 신호를 포함한다. 이때 반향의 정도나 반향에 의한 음질 변화를 예측하는 것은 반향 제거 알고리즘 등에서 중요한 정보를 제공한다. 본 논문은 음성 신호의 하모닉 모델링 기법을 이용한 반향 환경에서의 자동음질 예측 기법을 제안하다. 제안한 방법에서는 반향을 포함하는 음성 신호에 대한 하모닉 모델링 기법이 가능함을 보이고, 모델링된 하모닉 성분과 나머지 성분 사이의 통계적인 비율을 예측한다. 예측된 비율은 일반적인 방 환경에서의 음질 측정 표준 파라미터와 비교하였다. 실험 결과 제안된 방법은 다양한 반향 환경 (반향 시간 0.2~1.0초)에서 표준 음질 파라미터를 정확하게 예측할 수 있음을 증명하였다.

The acoustic signal from a distance sound source in an enclosed space often produces reverberant sound that varies depending on room impulse response. The estimation of the level of reverberation or the quality of the observed signal is important because it provides valuable information on the condition of system operating environment. It is also useful for designing a dereverberation system. This paper proposes a speech quality estimation method based on the harmonicity of received signal, a unique characteristic of voiced speech. At first, we show that the harmonic signal modeling to a reverberant signal is reasonable. Then, the ratio between the harmonically modeled signal and the estimated non-harmonic signal is used as a measure of standard room acoustical parameter, which is related to speech clarity. Experimental results show that the proposed method successfully estimates speech quality when the reverberation time varies from 0.2s to 1.0s. Finally, we confirm the superiority of the proposed method in both background noise and reverberant environments.
전체 326
42 International Conference Jae-Mo Yang, Hong-Goo Kang "Adaptive multichannel linear prediction based dereverberation in time-varying room environments" in EUSIPCO, 2013
41 Domestic Journal Jae-Mo Yang, Weige Chen, Z. Zhang, Hong-Goo Kang "반향 음성 신호의 하모닉 모델링을 이용한 음질 예측 알고리즘" in 방송공학회논문지, vol.18, issue.6, pp.919-926, 2013.11
40 International Conference JeeSok Lee, Frank Soong, Hong-Goo Kang "Source-Filter based Full-band Adaptive Harmonic Model and Its Application to Speech Prosody Modification" in INTERSPEECH, 2013
39 Domestic Conference 이태규, 백용현, 박영철, 윤대희 "스테레오-멀티채널 업믹스 시스템에서의 초기 반사음 생성 기법" in 한국방송공학회, 2013
38 International Journal Seong-woo Kim, Young-Cheol Park, Dae Hee Youn "A variable step-size gradient adaptive lattice algorithm for multiple sinusoidal interference cancelation" in EURASIP Journal on Advances in Signal Processing, vol.106, 2013
37 International Conference Young-Sun Joo, Chi-Sang Jung, Hong-Goo Kang "Enhancement of spectral clarity for HMM-based text-to-speech systems" in ICASSP, 2013
36 International Journal Jung-In Lee, Jeung-Yoon Choi, Hong-Goo Kang "Refinement of Landmark Detection and Extraction of Articulator-Free Features for Knowledge-Based Speech Recognition" in IEICE Transactions on Information and Systems, vol.E96-D, No.3, pp.746-749, 2013
35 Domestic Journal 현동일, 박영철, 윤대희 "가상 음원 이미징을 위한 향상된 진폭 패닝 기법" in 전자공학회논문지, vol.50, 제 3호, pp.139-145, 2013
34 International Conference Taegyu Lee, Seokjin Lee, Young-cheol Park, Dae Hee Youn "Virtual bass system based on a multiband harmonic generation" in ICCE, 2013
33 International Journal Chi-Sang Jung, Young-Sun Joo, Hong-Goo Kang "Waveform Interpolation-Based Speech Analysis/Synthesis for HMM-Based TTS Systems" in IEEE Signal Processing Letters, vol.19, issue 12, pp.809-812, 2012