GB1142778A - Electronic musical instrument - Google Patents

Electronic musical instrument

Info

Publication number
GB1142778A
GB1142778A GB50106/67A GB5010667A GB1142778A GB 1142778 A GB1142778 A GB 1142778A GB 50106/67 A GB50106/67 A GB 50106/67A GB 5010667 A GB5010667 A GB 5010667A GB 1142778 A GB1142778 A GB 1142778A
Authority
GB
United Kingdom
Prior art keywords
fitters
formant
electronic musical
nov
factors
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
GB50106/67A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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
Application filed by Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1142778A publication Critical patent/GB1142778A/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

1,142,778. Electronic musical instruments. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 3 Nov., 1967 [8 Nov., 1966], No. 50106/67. Heading G5J. 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).
GB50106/67A 1966-11-08 1967-11-03 Electronic musical instrument Expired GB1142778A (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
GB1142778A true GB1142778A (en) 1969-02-12

Family

ID=19798134

Family Applications (1)

Application Number Title Priority Date Filing Date
GB50106/67A Expired GB1142778A (en) 1966-11-08 1967-11-03 Electronic musical instrument

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)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2254472A (en) * 1991-01-18 1992-10-07 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

Families Citing this family (5)

* 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

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2254472A (en) * 1991-01-18 1992-10-07 Hohner M Ltd Tone control
GB2254472B (en) * 1991-01-18 1995-01-11 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

Also Published As

Publication number Publication date
NL6615720A (en) 1968-05-09
US3525796A (en) 1970-08-25
DE1294170C2 (en) 1973-05-24
CH477735A (en) 1969-08-31
DE1294170B (en) 1969-04-30
BE706185A (en) 1968-05-07
ES346823A1 (en) 1969-01-01

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