CA1091163A - Sound processing method and apparatus - Google Patents

Sound processing method and apparatus

Info

Publication number
CA1091163A
CA1091163A CA273,908A CA273908A CA1091163A CA 1091163 A CA1091163 A CA 1091163A CA 273908 A CA273908 A CA 273908A CA 1091163 A CA1091163 A CA 1091163A
Authority
CA
Canada
Prior art keywords
signal
frequencies
pass filter
harmonic
creator
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA273,908A
Other languages
English (en)
French (fr)
Inventor
Curt A. Knoppel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ITX Ltd
Original Assignee
ITX Ltd
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
Priority claimed from US05/762,403 external-priority patent/US4150253A/en
Application filed by ITX Ltd filed Critical ITX Ltd
Application granted granted Critical
Publication of CA1091163A publication Critical patent/CA1091163A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H03F1/3276—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using the nonlinearity inherent to components, e.g. a diode
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H03F1/3264—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits in audio amplifiers
    • H03F1/327—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits in audio amplifiers to emulate discharge tube amplifier characteristics
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Power Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Stereophonic System (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Amplifiers (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
CA273,908A 1976-03-15 1977-03-14 Sound processing method and apparatus Expired CA1091163A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US66711576A 1976-03-15 1976-03-15
US05/762,403 US4150253A (en) 1976-03-15 1977-01-26 Signal distortion circuit and method of use
US762,403 1977-01-26
US667,115 1984-11-01

Publications (1)

Publication Number Publication Date
CA1091163A true CA1091163A (en) 1980-12-09

Family

ID=27099613

Family Applications (1)

Application Number Title Priority Date Filing Date
CA273,908A Expired CA1091163A (en) 1976-03-15 1977-03-14 Sound processing method and apparatus

Country Status (6)

Country Link
JP (1) JPS6049918B2 (de)
CA (1) CA1091163A (de)
DE (1) DE2711083A1 (de)
FR (1) FR2357970A1 (de)
GB (1) GB1579571A (de)
NL (1) NL7702723A (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56115189U (de) * 1980-02-01 1981-09-04
JPS61281799A (ja) * 1985-06-07 1986-12-12 Dainabekutaa Kk 音声信号再生方式
DE3904425A1 (de) * 1989-02-14 1990-08-16 Ulrich Dipl Ing Behringer Verfahren und vorrichtung zur klangaufbereitung
SE0004479D0 (sv) 2000-12-05 2000-12-05 Ericsson Telefon Ab L M Method and arrangement relating to electronic compensation
DE10101831A1 (de) * 2001-01-17 2002-07-18 Grundig Ag Tonsignalwiedergabegerät mit Einstellung einer individuellen Hörcharakteristik

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3127476A (en) * 1964-03-31 david
US2852604A (en) * 1954-08-05 1958-09-16 Richard H Maccutcheon Sound reproduction apparatus
US2866849A (en) * 1955-04-27 1958-12-30 Leo C Krazinski Apparatus for improving sounds of music and speech
US2953644A (en) * 1956-10-04 1960-09-20 Bell Telephone Labor Inc Wave transmission system
US3219757A (en) * 1962-08-06 1965-11-23 Gen Electric Sound reproduction from monaural information
US3560656A (en) * 1967-05-01 1971-02-02 Dictaphone Corp Binaural phase differential system
US3591699A (en) * 1968-03-28 1971-07-06 Royce L Cutler Music voicing circuit deriving an input from a conventional musical instrument and providing voiced musical tones utilizing the fundamental tones from the conventional musical instrument
US3544694A (en) * 1969-03-17 1970-12-01 William A Freeman Pickup and waveforming circuitry for electronic musical instrument
CA942198A (en) * 1970-09-15 1974-02-19 Kazuho Ohta Multidimensional stereophonic reproducing system
US3723633A (en) * 1971-06-16 1973-03-27 Nippon Musical Instruments Mfg Bass tone producing device for an electronic musical instrument
GB1409799A (en) * 1971-09-23 1975-10-15 Kokusai Denshin Denwa Co Ltd Quality system for a bandlimited voice signal
US3819861A (en) * 1972-11-24 1974-06-25 Bell Telephone Labor Inc Sound enhancing system for musical instruments
US3890466A (en) * 1973-02-01 1975-06-17 Cbs Inc Encoders for quadraphonic sound system

Also Published As

Publication number Publication date
DE2711083C2 (de) 1987-08-27
JPS6049918B2 (ja) 1985-11-05
DE2711083A1 (de) 1977-11-10
JPS52131701A (en) 1977-11-04
GB1579571A (en) 1980-11-19
FR2357970A1 (fr) 1978-02-03
FR2357970B1 (de) 1983-09-30
NL7702723A (nl) 1977-09-19

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Legal Events

Date Code Title Description
MKEX Expiry