ES346823A1 - Electronic musical instrument provided with generators and individual formant filters - Google Patents

Electronic musical instrument provided with generators and individual formant filters

Info

Publication number
ES346823A1
ES346823A1 ES346823A ES346823A ES346823A1 ES 346823 A1 ES346823 A1 ES 346823A1 ES 346823 A ES346823 A ES 346823A ES 346823 A ES346823 A ES 346823A ES 346823 A1 ES346823 A1 ES 346823A1
Authority
ES
Spain
Prior art keywords
fitters
generators
formant
electronic musical
musical instrument
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
ES346823A
Other languages
Spanish (es)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of ES346823A1 publication Critical patent/ES346823A1/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/02—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos
    • G10H1/06—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour
    • G10H1/14—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour during execution
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/02—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos
    • G10H1/06—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/02—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos
    • G10H1/06—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour
    • G10H1/12—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour by filtering complex waveforms

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

An electronic musical instrument comprises tone generators having associated individual formant fitters and a plurality of keys connecting outputs from selected fitters to the instrument output, the keying operation shifting the Q factors of corresponding fitters between two stable values to vary the timbre of the instrument output. The formants may be parallel or series resonant circuits (Figs. 1, 2, not shown), having resistors whose values are changed on depression of a key to change the Q factors. The resistors may be replaced by photo-cells or transistors. The formant fitters may be included in the generator circuits and arranged to control the output frequencies of the generators (Figs. 3, 4, not shown). Each fitter may have a plurality of resonant frequencies, one to determine the ultimate pitch of the generator, and others to determine the ultimate formant. The ratio of the resonant frequencies may be 1 : 2 for simulating open organ pipe tones, or 1 : 3 for simulating stopped pipes, or may be non-integral for imitating reed pipes (Fig. 5, not shown).
ES346823A 1966-11-08 1967-11-06 Electronic musical instrument provided with generators and individual formant filters Expired ES346823A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6615720A NL6615720A (en) 1966-11-08 1966-11-08

Publications (1)

Publication Number Publication Date
ES346823A1 true ES346823A1 (en) 1969-01-01

Family

ID=19798134

Family Applications (1)

Application Number Title Priority Date Filing Date
ES346823A Expired ES346823A1 (en) 1966-11-08 1967-11-06 Electronic musical instrument provided with generators and individual formant filters

Country Status (7)

Country Link
US (1) US3525796A (en)
BE (1) BE706185A (en)
CH (1) CH477735A (en)
DE (1) DE1294170C2 (en)
ES (1) ES346823A1 (en)
GB (1) GB1142778A (en)
NL (1) NL6615720A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS499371B1 (en) * 1968-07-19 1974-03-04
US3663736A (en) * 1969-12-25 1972-05-16 Nippon Musical Instruments Mfg Control device for performance effects of an electronic musical instrument
US3688010A (en) * 1970-06-11 1972-08-29 Alfred B Freeman Tone modulation system
US3861263A (en) * 1972-06-21 1975-01-21 Nippon Musical Instruments Mfg Variable time constant circuit for use in an electronic musical instrument
DE2429871C3 (en) * 1974-06-21 1981-05-14 CMB Colonia Management- und Beratungsgesellschaft mbH & Co KG, 5000 Köln Method for generating electrical sound signals corresponding to sounds of a certain pitch but of different volume values
GB9101105D0 (en) * 1991-01-18 1991-02-27 Hohner M Ltd Tone control
GB2468542A (en) * 2009-03-14 2010-09-15 Anthony Richard Hardie-Bick Filtering musical tones in response to their amplitude

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1666066A (en) * 1923-01-05 1928-04-17 Rca Corp Resistance coil
NL28283C (en) * 1929-10-03
US2166202A (en) * 1936-12-30 1939-07-18 Mallory & Co Inc P R Electric organ
US2489497A (en) * 1946-03-20 1949-11-29 Central Commercial Co Electrical musical instrument
US3098407A (en) * 1960-06-20 1963-07-23 Wurlitzer Co Tone filters
US3205294A (en) * 1963-01-07 1965-09-07 Motorola Inc Electronic musical instrument
US3403361A (en) * 1966-05-16 1968-09-24 Navy Usa Potentiometer frequency adjustment of a tuned circuit

Also Published As

Publication number Publication date
DE1294170B (en) 1969-04-30
GB1142778A (en) 1969-02-12
US3525796A (en) 1970-08-25
CH477735A (en) 1969-08-31
BE706185A (en) 1968-05-07
NL6615720A (en) 1968-05-09
DE1294170C2 (en) 1973-05-24

Similar Documents

Publication Publication Date Title
US3288904A (en) Tone frequency control system for electronic musical instruments
US3696201A (en) Digital organ system
GB1483509A (en) Electronic musical instruments
GB1491623A (en) Electrical musical instrument with chord generation
US2500820A (en) Electrical musical instrument
US3505461A (en) Electronic musical instrument for producing novel acoustic effects from multitone signals
US2905040A (en) Method and apparatus for producing chorus effects in music
US3748944A (en) Integrated circuit synthesis and bright wave organ system
US2681585A (en) Electrical musical instrument producing chorus effects
ES346823A1 (en) Electronic musical instrument provided with generators and individual formant filters
US3786166A (en) Keyboard type electronic musical instrument
ES8300319A1 (en) Orchestra chorus in an electronic musical instrument
US3992973A (en) Pulse generator for an electronic musical instrument
US3764721A (en) Electronic musical instrument
US3937115A (en) Electronic piano circuit arrangement
US3049959A (en) Obtaining ensemble and celeste effects in electrical musical instruments
US4205574A (en) Electronic musical instrument with variable pulse producing system
US3440325A (en) Transistorized hartley oscillator tone generator circuit producing glissando and vibrato effects by voltage detuning
USRE24743E (en) Electmcal musical instrument
US3333041A (en) Keying systems for electrical musical instruments for producing steadystate or percussive type tones either separately or concurrently
US3871261A (en) Method of tuning an electronic keyboard instrument in pure scale and apparatus therefor
US3832479A (en) Electronic apparatus for programmed automatic playing of musical accompaniment systems
US2048610A (en) Tone control for high or low tones in electrical musical instruments
US3405223A (en) Electronic organ
US2854879A (en) Electrical musical instrument