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음성화자인식

음성화자인식. 음성신호 추출절차. 음성신호 -> anti-aliasing filter A/D 변환 -> 디지털 프리엠퍼시스 필터 -> 해밍 윈도우 -> FFT -> 필터뱅크 -> 로그화 -> DCT. 전처리 과정. MFCC (Mel Frequency Coefficient – Cepstrum). Endpoint detection. Preemphasis. Frame Blocking 윈도우해밍 FFT Filter banks( 여러개의 대역통과 필터 ) log(| |) ² IDCT.

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음성화자인식

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  1. 음성화자인식

  2. 음성신호 추출절차 • 음성신호 -> anti-aliasingfilter A/D변환-> 디지털 프리엠퍼시스 필터 -> 해밍 윈도우 -> FFT ->필터뱅크 ->로그화 -> DCT

  3. 전처리 과정

  4. MFCC(Mel Frequency Coefficient – Cepstrum)

  5. Endpoint detection

  6. Preemphasis

  7. Frame Blocking • 윈도우해밍 • FFT • Filter banks(여러개의 대역통과 필터) • log(| |)² • IDCT

  8. 벡터양자화(VQ)

  9. MSVQ(MultisectionVector Quantization)

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