KR870009323A - Feature Parameter Extraction Circuit of Audio Signal - Google Patents

Feature Parameter Extraction Circuit of Audio Signal Download PDF

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Publication number
KR870009323A
KR870009323A KR1019860001513A KR860001513A KR870009323A KR 870009323 A KR870009323 A KR 870009323A KR 1019860001513 A KR1019860001513 A KR 1019860001513A KR 860001513 A KR860001513 A KR 860001513A KR 870009323 A KR870009323 A KR 870009323A
Authority
KR
South Korea
Prior art keywords
cpu
bpf
signal
extraction circuit
feature parameter
Prior art date
Application number
KR1019860001513A
Other languages
Korean (ko)
Inventor
이종석
Original Assignee
구자학
주식회사 금성사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 구자학, 주식회사 금성사 filed Critical 구자학
Priority to KR1019860001513A priority Critical patent/KR870009323A/en
Publication of KR870009323A publication Critical patent/KR870009323A/en

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Abstract

내용 없음No content

Description

음성신호의 특징 파라미터 추출회로Feature Parameter Extraction Circuit of Audio Signal

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제 1 도는 본 발명의 추출 회로도.1 is an extraction circuit diagram of the present invention.

Claims (1)

중앙 처리장치(CPU) 및 롬(ROM), 램(RAM), 클럭 신호 발생기(CLG)로 된 특징 파라미터 추출회로에 있어서, 증폭기(AMP)에서 증폭된 음성 신호에서 각 주파수 대역만을 통과시키는 밴드 패스 필터(BP1-BPF8)와, 상기 중앙 처리 장치(CPU)에 의해 제어되는 어드테스 래치(ADL)의 출력 신호에 따라 상기 밴드 패스 필터(BPF1-BPF8)의 출력 신호를 선택 출력시키는 멀리플렉서(MUX)와, 상기 멀티 플랙서(MUX)의 출력신호를 디지털 신호로 변환하는 아날로그/디지탈 변환기(ADC)와, 상기 아날로그/디지털 변환기(ADC)의 출력 디지털 신호를 상기 중앙 처리 장치(CPU)에 입력시켜 음성 시놓와 에너지 및 영 교차율을 연산하게 하는 버퍼(BF)로 구성함을 특징으로 하는 음성 신호의 특정 파라미터 추출회로.In a feature parameter extraction circuit comprising a central processing unit (CPU), a ROM, a RAM, and a clock signal generator (CLG), a band pass that passes only each frequency band in an audio signal amplified by an amplifier (AMP). Selectively outputting the output signals of the band pass filters BPF 1 -BPF 8 according to the output signals of the filters BP 1 -BPF 8 and the address latch ADL controlled by the CPU. The central processing unit converts the multiplexer (MUX), the analog / digital converter (ADC) for converting the output signal of the multiplexer (MUX) into a digital signal, and the output digital signal of the analog / digital converter (ADC). And a buffer (BF) which is input to the CPU to calculate a voice signal and energy and zero crossing rate. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019860001513A 1986-03-04 1986-03-04 Feature Parameter Extraction Circuit of Audio Signal KR870009323A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019860001513A KR870009323A (en) 1986-03-04 1986-03-04 Feature Parameter Extraction Circuit of Audio Signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019860001513A KR870009323A (en) 1986-03-04 1986-03-04 Feature Parameter Extraction Circuit of Audio Signal

Publications (1)

Publication Number Publication Date
KR870009323A true KR870009323A (en) 1987-10-26

Family

ID=72896423

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019860001513A KR870009323A (en) 1986-03-04 1986-03-04 Feature Parameter Extraction Circuit of Audio Signal

Country Status (1)

Country Link
KR (1) KR870009323A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100381372B1 (en) * 2001-06-15 2003-04-26 주식회사 엑스텔테크놀러지 Apparatus for feature extraction of speech signals
KR100388387B1 (en) * 1995-01-12 2003-11-01 디지탈 보이스 시스템즈, 인코퍼레이티드 Method and system for analyzing a digitized speech signal to determine excitation parameters
KR100707826B1 (en) * 2006-06-05 2007-04-13 에스지씨테크놀로지 주식회사 Multi band pass filter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100388387B1 (en) * 1995-01-12 2003-11-01 디지탈 보이스 시스템즈, 인코퍼레이티드 Method and system for analyzing a digitized speech signal to determine excitation parameters
KR100381372B1 (en) * 2001-06-15 2003-04-26 주식회사 엑스텔테크놀러지 Apparatus for feature extraction of speech signals
KR100707826B1 (en) * 2006-06-05 2007-04-13 에스지씨테크놀로지 주식회사 Multi band pass filter

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