KR850700081A - Audio signal playback device - Google Patents

Audio signal playback device

Info

Publication number
KR850700081A
KR850700081A KR1019850700032A KR850700032A KR850700081A KR 850700081 A KR850700081 A KR 850700081A KR 1019850700032 A KR1019850700032 A KR 1019850700032A KR 850700032 A KR850700032 A KR 850700032A KR 850700081 A KR850700081 A KR 850700081A
Authority
KR
South Korea
Prior art keywords
audio signal
pitch
pitch conversion
playback
reproducing apparatus
Prior art date
Application number
KR1019850700032A
Other languages
Korean (ko)
Other versions
KR930001700B1 (en
Inventor
다께시 후까미
Original Assignee
오오가 노리오
소니 가부시기가이샤
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 오오가 노리오, 소니 가부시기가이샤 filed Critical 오오가 노리오
Priority claimed from PCT/JP1984/000433 external-priority patent/WO1985001377A1/en
Publication of KR850700081A publication Critical patent/KR850700081A/en
Application granted granted Critical
Publication of KR930001700B1 publication Critical patent/KR930001700B1/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/28—Speed controlling, regulating, or indicating
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B5/00—Electrically-operated educational appliances
    • G09B5/04—Electrically-operated educational appliances with audible presentation of the material to be studied
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/04—Time compression or expansion
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/26—Speed-changing arrangements; Reversing arrangements; Drive-transfer means therefor
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/005—Reproducing at a different information rate from the information rate of recording
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
    • G11B27/3027—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording used signal is digitally coded
    • G11B27/3063—Subcodes
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2545—CDs

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Quality & Reliability (AREA)
  • Computational Linguistics (AREA)
  • Business, Economics & Management (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

내용 없음No content

Description

오디오신호 재생장치Audio signal playback device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명에 의한 오디오신호 재생장치를 콤팩트 디스크 플레이어에 적용한 한 실시예를 가리키는 블럭회로도 이다.1 is a block circuit diagram showing an embodiment in which the audio signal reproducing apparatus according to the present invention is applied to a compact disc player.

Claims (4)

소정의 샘플링 주파수(Fs)로 오디오신호 데이타가 기록되어 있는 기록매체로부터 상기 오디오신호 데이타를 가변속 재생하는 재생장치와, 이 재생장치에서 얻을 수 있는 재생오디오 신호데이타를 그 재생 샘플링 주파수(fs)에 따른 서입클럭으로 메모리에 서입하고, 상기 소정의 샘플링 주파수(Fs)로 발진하는 발진기로부터의 발진주파수(fp)에 따른 독출클럭으로 상기 메모리로 부터의 재생오디오 데이타를 독출하고, 재생오디오 신호의 피치변환 처리를 행하는 피치 변환장치를 구비하여 이루어진 것을 특징으로 하는 오디오신호 재생장치.A reproducing apparatus for variable-speed reproduction of the audio signal data from a recording medium on which audio signal data is recorded at a predetermined sampling frequency (F s ), and reproducing sampling signal (f s) Read-out audio data from the memory with a read clock according to the oscillation frequency f p from the oscillator oscillating at the predetermined sampling frequency (F s ) An audio signal reproducing apparatus, comprising: a pitch converting apparatus for performing a pitch converting process of an audio signal. 제1항에 있어서, 상기 피치변환 장치의 발진기로서 가변발진기를 사용하고, 그 발진주파수(fp)fmf 상기 소정의 샘플링 주파수(Fs)에 대하여 가변함으로써 각 주파수의 비 fp: Fs에 따른 피치 변환처리를 상기 재생장치에 있어서의 재생속도에 대히여 독립으로 행하도록 한 것을 특징으로 하는 오디오신호 재생장치.A variable oscillator is used as an oscillator of the pitch conversion device, and the oscillation frequency f p fmf is varied with respect to the predetermined sampling frequency F s so that the ratio f p : F s of each frequency is increased. And a pitch conversion process is performed independently of the playback speed in the playback apparatus. 임의 피치환비로 재생오디오 신호의 피치변환처리를 행하는 피치변환 처리부와, 재생오디오 신호의 시점 혹은 종점을 가리키는 신호로 상기 피치변환 처리부의 피치변환비를 사전 정해진 값에 자동 설정하는 피치비 제어부로 이루어진 것을 특징으로 하는 오디오신호 재생장치.A pitch conversion processing section for performing pitch conversion processing of the playback audio signal at an arbitrary pitch ratio, and a pitch ratio control section for automatically setting the pitch conversion ratio of the pitch conversion processing section to a predetermined value with a signal indicating the start point or the end point of the playback audio signal. An audio signal reproducing apparatus, characterized in that. 제1의 오디오 신호를 제2의 오디오 신호로 절환하여서 출력하는 오디오신호 재생장치에 있어서, 이들의 제1, 제2의 오디오신호의 저역주파수 성분을 꺼내고 s이들의 저역성분의 신호의 영점 교차점을 각각 검출하고, 제1의 오디오신호의 상기 저역영점 교차점을 제2의 오디오신호의 상기 저역 영크로스점에 시간 축상에서 접속하도록 절환하는 것을 특징으로 하는 오디오신호 재생장치.An audio signal reproducing apparatus for converting a first audio signal into a second audio signal and outputting the same, wherein the low frequency components of the first and second audio signals are taken out, and the zero crossing point of these low frequency components is obtained. And detecting each of the low zero crossing points of the first audio signal so as to be connected on the time axis to the low zero cross point of the second audio signal. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019850700032A 1983-09-09 1984-09-10 Apparatus for reproducing audio signal KR930001700B1 (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP166269 1983-09-09
JP16626958 1983-09-09
JP???58-166269 1983-09-09
JP58-234171 1983-12-14
JP234171 1983-12-14
JP23417158 1983-12-14
PCT/JP1984/000433 WO1985001377A1 (en) 1983-09-09 1984-09-10 Apparatus for reproducing audio signal

Publications (2)

Publication Number Publication Date
KR850700081A true KR850700081A (en) 1985-10-21
KR930001700B1 KR930001700B1 (en) 1993-03-11

Family

ID=69104144

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019850700032A KR930001700B1 (en) 1983-09-09 1984-09-10 Apparatus for reproducing audio signal

Country Status (1)

Country Link
KR (1) KR930001700B1 (en)

Also Published As

Publication number Publication date
KR930001700B1 (en) 1993-03-11

Similar Documents

Publication Publication Date Title
EP0155970A4 (en) Apparatus for reproducing audio signal.
JPS5687237A (en) Optical recording and reproducing or reproducing device
KR890015246A (en) Digital audio signal player
JPS551622A (en) Code signal reader
KR910010472A (en) Digital signal processing circuit
KR900018980A (en) Digital signal playback device
KR850700081A (en) Audio signal playback device
KR890010804A (en) Reversing voice regeneration circuit
US4876615A (en) Data decoding system
KR880005559A (en) Rotating Head Digital Signal Recorder
JPS5774809A (en) Voice signal processing device
KR900013499A (en) Magnetic recording and playback device
JPS5517875A (en) Sound time base compression and expansion reproducing device
JPS58142398A (en) Pitch controller
JPH0574145B2 (en)
KR840001041Y1 (en) Control circuit for sound and characters signal
JP2697197B2 (en) Digital audio equipment
SU847350A1 (en) Magnetic recording and reproducing device
JPH0535510B2 (en)
SU698042A1 (en) Data reproduction system
JPS54139710A (en) Reproducer of digial signals
KR900018985A (en) Digital signal reproducing device
RU1795518C (en) Device for reproducing phase-modulated signals from magnetic recording medium
JPS61120378A (en) Reproducing device
KR880014521A (en) Optical Disc Data Detection Device

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20030220

Year of fee payment: 11

LAPS Lapse due to unpaid annual fee