NL8300671A - Automatisch egalisatiesysteem met dtf of fft. - Google Patents

Automatisch egalisatiesysteem met dtf of fft. Download PDF

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Publication number
NL8300671A
NL8300671A NL8300671A NL8300671A NL8300671A NL 8300671 A NL8300671 A NL 8300671A NL 8300671 A NL8300671 A NL 8300671A NL 8300671 A NL8300671 A NL 8300671A NL 8300671 A NL8300671 A NL 8300671A
Authority
NL
Netherlands
Prior art keywords
signal
input
unit
frequency
transfer function
Prior art date
Application number
NL8300671A
Other languages
English (en)
Dutch (nl)
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Priority to NL8300671A priority Critical patent/NL8300671A/nl
Priority to US06/579,737 priority patent/US4628530A/en
Priority to DK079484A priority patent/DK157645B/da
Priority to CA000447837A priority patent/CA1210095A/en
Priority to AU24736/84A priority patent/AU565544B2/en
Priority to EP84200221A priority patent/EP0119645B1/de
Priority to DE8484200221T priority patent/DE3471226D1/de
Priority to JP59028837A priority patent/JPH0787633B2/ja
Priority to KR1019840000800A priority patent/KR910002199B1/ko
Publication of NL8300671A publication Critical patent/NL8300671A/nl
Priority to SG502/90A priority patent/SG50290G/en

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/16—Automatic control
    • H03G5/165—Equalizers; Volume or gain control in limited frequency bands
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
    • H03G9/12—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices
    • H03G9/18—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices for tone control and volume expansion or compression
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/30—Control circuits for electronic adaptation of the sound field
NL8300671A 1983-02-23 1983-02-23 Automatisch egalisatiesysteem met dtf of fft. NL8300671A (nl)

Priority Applications (10)

Application Number Priority Date Filing Date Title
NL8300671A NL8300671A (nl) 1983-02-23 1983-02-23 Automatisch egalisatiesysteem met dtf of fft.
US06/579,737 US4628530A (en) 1983-02-23 1984-02-13 Automatic equalizing system with DFT and FFT
DK079484A DK157645B (da) 1983-02-23 1984-02-20 System til automatisk udligning ved diskret fourier-transformation (dft) eller hurtig fourier-transformation (eft).
CA000447837A CA1210095A (en) 1983-02-23 1984-02-20 Automatic equalizing system with dft or fft
AU24736/84A AU565544B2 (en) 1983-02-23 1984-02-20 Automatic equalizing system with dft or fft
EP84200221A EP0119645B1 (de) 1983-02-23 1984-02-20 Automatisches Entzerrungssystem mit diskreter Fourier-Transformation (DFT) oder schneller Fourier-Transformation (FFT)
DE8484200221T DE3471226D1 (en) 1983-02-23 1984-02-20 Automatic equalizing system with discrete fourier transform (dft) or fast fourier transform (fft)
JP59028837A JPH0787633B2 (ja) 1983-02-23 1984-02-20 電気−音響変換装置
KR1019840000800A KR910002199B1 (ko) 1983-02-23 1984-02-20 자동등화장치
SG502/90A SG50290G (en) 1983-02-23 1990-07-04 Automatic equalizing system with discrete fourier transform(dft)or fast fourier transform(fft)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8300671A NL8300671A (nl) 1983-02-23 1983-02-23 Automatisch egalisatiesysteem met dtf of fft.
NL8300671 1983-02-23

Publications (1)

Publication Number Publication Date
NL8300671A true NL8300671A (nl) 1984-09-17

Family

ID=19841459

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8300671A NL8300671A (nl) 1983-02-23 1983-02-23 Automatisch egalisatiesysteem met dtf of fft.

Country Status (10)

Country Link
US (1) US4628530A (de)
EP (1) EP0119645B1 (de)
JP (1) JPH0787633B2 (de)
KR (1) KR910002199B1 (de)
AU (1) AU565544B2 (de)
CA (1) CA1210095A (de)
DE (1) DE3471226D1 (de)
DK (1) DK157645B (de)
NL (1) NL8300671A (de)
SG (1) SG50290G (de)

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Also Published As

Publication number Publication date
JPH0787633B2 (ja) 1995-09-20
JPS59158700A (ja) 1984-09-08
EP0119645A1 (de) 1984-09-26
EP0119645B1 (de) 1988-05-11
US4628530A (en) 1986-12-09
AU565544B2 (en) 1987-09-17
KR910002199B1 (ko) 1991-04-06
CA1210095A (en) 1986-08-19
DK79484D0 (da) 1984-02-20
DK157645B (da) 1990-01-29
DK79484A (da) 1984-08-24
DE3471226D1 (en) 1988-06-16
AU2473684A (en) 1984-08-30
KR840008072A (ko) 1984-12-12
SG50290G (en) 1990-08-31

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