US3549777A - Electronic musical instrument system for sounding voices reiteratively in alternation - Google Patents
Electronic musical instrument system for sounding voices reiteratively in alternation Download PDFInfo
- Publication number
- US3549777A US3549777A US664745A US3549777DA US3549777A US 3549777 A US3549777 A US 3549777A US 664745 A US664745 A US 664745A US 3549777D A US3549777D A US 3549777DA US 3549777 A US3549777 A US 3549777A
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- US
- United States
- Prior art keywords
- tone
- alternation
- gates
- reiteratively
- loudspeaker
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- 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.)
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- 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
- G10H1/18—Selecting circuits
- G10H1/26—Selecting circuits for automatically producing a series of tones
- G10H1/30—Selecting circuits for automatically producing a series of tones to reiteratively sound two tones
Definitions
- Tone is applied via a key switch to two tone'color filters [51] Int. Cl G10]! l/02, in parallel and outputs of the filters are applied in alternation G 1 0h 5/00 to a loudspeaker or to separate loudspeakers. [50] Field ofSearch 84/1 .01, 2 Two f g are pp to distinct tone color filters and 1'25! the outputs of these applied reiteratively in alternation to a l loudspeaker or to separate loudspeakers. 3.
- FHJ'ER C a 40 6O 62 30 A GATE o 13 REITERHTwN 64 OSC.
- the present invention employs alternating reiteration in conjunction with different tone color voices, or to alternate different footages of the same or different voices.
- Speed of alternation is preferably adjustable, and certain tone colors may speak continuously while others are alternately speaking.
- the alternate tones may proceed via the same loudspeaker or via different loudspeakers, at the will of the musician.
- Novel circuitry is provided for alternate gating of tones.
- FIG. 1 is a block diagram of a system according to the invention providing alternating voices of the same footage
- FIG. 2 is a block diagram of a modification of the system of FIG. 1, providing alternating voices of different footages;
- FIG. 3 is a block diagram of a modification of the system of FIGS. 1 and 2, providing alternate footages of the same voic-
- FIG. 4 is a schematic circuit diagram of a bistable gate used in the iteration systems of FIGS. l3;
- FIG. 5 is a block diagram of a modification of the system of FIG. 1, having provision for stereophonic efiects;
- FIG. 6 is a block diagram of a system for providing a cyclic succession of three voices
- FIG. 7 is a block diagram of a system for providing and for transferring voicing whenever a pedal is depressed
- FIG. 8 is a block diagram of a system for providing alternating voices of different footage, with or without stereophonic effects.
- 10 is a tone oscillator and 11 is another tone oscillator, these being of the same footage.
- Key switches 12 and 13 connect oscillators l0 and 11 to a common bus 14, which is connected jointly to tone color filters A and B.
- filter A may provide a tibia voice and filter B a saxophone voice.
- filter A may provide a clarinet voice and filter B an oboe voice.
- Filters A and B are connected to alternate inputs 15, 16 of an alternating gating circuit 17, which is controlled by a reiteration oscillator 18, which provides gating signals to cause tones from filters A and B to appear in alteration at output bus 19. That bus is connected by tab 'switch 20 to amplifiers 21 and loudspeakers 22.
- this tone might sound reiteratively as a tibia and as a saxophone, in alternation.
- FIG. 2 is similar to the system of FIG. 1 except in that generators 10a and 10b are of the same nomenclature, but different footages.
- FIG. 4 illustrates schematically a reiterative oscillator and associated gates, for use in the several systems of the invention.
- the multivibrator MV employs NPN transistors having emitters which can be selectively connected, via ON-OFF switch 25, to ground or to V.
- the collectors are connected by equal resistances 27, 28 to ground, via lead 30.
- the EETs of transistors T1 and T2 are connected via resistances 31 and 32 to the slider 33 of a voltage divider 34. Position of the slider establishes DC bias of Tll and T2 and therefore frequency of oscillation, which may be variable in the range 3. to 13. c.p.s. for example only.
- the collector of TI is capacitively coupled to the base of T2, and the collector of T2 to the base of T1, in conventional fashion, to provide oscillations.
- the collectors of T1 and T2 then provide control points which proceed in alternation from ground to negative potential as MV oscillates.
- the FET's F1 and F2 are conductive when their gates are referenced to ground.
- both gates are referenced to ground both FETs are conductive, and tone from both filters A and B can be heard.
- the individual filters may be provided with stop tabs, as 4t), 41 in FIG. 1, to enable selection, and also to enable single tone reiteration, i.e. sounding of one tone followed by a silent period, for each cycle of oscillator 18. This expedient is applicable to all FIGS. of the drawings.
- the collectors of TI and T2 are connected to ground via resistances 27, 50, 51, and filter capacitors 52, 53 are provided for smoothing purposes and to remove high frequency noise.
- the drain terminal D of FET F1 is connected to filter A, in FIG. I for example, and the drain terminal I) of PET F2 to filter B.
- the source terminals S are jointly connected to amplifiers 21.
- FIG. 5 parallels FIG. 1, except in that the outputs of gates A and B proceed, respectively, to separate amplifiers 60, 61 and loudspeakers 62, 63. Accordingly, tones of diverse color sound via different loudspeakers, providing a stereophonic effect.
- Single filters may be disabled by stop tabs 40, 41 at will, and the gating circuit 17 is illustrated as two distinct gates, for purposes of clarity.
- a single tone oscillator 65 and a single key switch 66 provide alternate reiteration of tones of different footages, by interpos' ing a frequency divider stage 67 between oscillator 65 and gate 17a. Tone filtering may be interposed following gates 17a and 17b, which may provide the same or different tone colors for the two gate conditions.
- a flip-flop 70 may be employed, which retains one of the gates 17a, 17b normally conductive and the other nonconductive.
- pedal tone from oscillator 76 is detected in detector 77 and changes the state of flip-flop 70, which reverses the status of the gates 17a, 17b.
- the flip-flop 70 may be a free running oscillator, as 18 in FIG. 5, which is cut off when a pedal switch is operated, to sound both tones simultaneously at that time, but the tones only inaltemation while the pedal key switch is not closed.
- the alternate tones, in FIG. 7, can sound via different speakers, or both tones can sound via both speakers.
- three tone oscillators Q1, Q2, and Q3 are provided. These proceed jointly to three different tone color filters A, B and C., and thence via three gates G1, G2, G3 to tab switches T51, T52 and T83, and thence to amplifiers 21 and loudspeaker 22.
- the gates may be FET gates, AS IN FIG. 4 of the drawings. These gates are turned on sequentially by counter C.
- a modification is to employ filter A twice, once where shown and once in place of filter C. If the filters A and B were saxophone and clarinet tone color filters, for example, one would then hear sequences of three'tones, each consisting of saxophone, clarinet, saxophone. If the filters were all different, the sequence might be clarinet, saxophone, oboe, for example.
- the system of FIG. 5 may be modified to use only one filter, or two identical filters, so that the reiteration is not one of tone but only that of directivity, as the separate speakers sound in alternation.
- Various additional modifications of the present system will suggest themselves to one skilled in the art, within the basic concept of providing alternate tones reiteratively, or with different directivities, or both, or of providing the same tone with different directivities reiteratively.
- An electronic organ system comprising:
- a loudspeaker system connected in cascade with said plurality of gates
- said loud speaker system comprises separate loudspeakers connected to different ones of said gates.
- An electronic organ comprising:
- said last means including a transistorized multivibrator comprising two transistors having each a base, an emitter and a collector; one of said emitter and collector being an output electrode;
- said field effect transistor gates each including a gate electrode
- a common adjustable bias voltage source DC connected to said base electrodes for adjusting the frequency of said multivibrator
- An electronic organ comprising:
- control means connecting each of said tone color filters to said loudspeaker system reiteratively and sequentially;
- speaker system comprises at least two loudspeakers each connected in series with a different one of said color tone filters
- said loudspeaker system comprises at least two loudspeakers each connected in series with a different one of said color tone filters.
- An electronic organ comprising:
- control means connecting each said color tone filter to said loudspeaker system reiteratively and sequentially;
- said loudspeaker system including a loudspeaker connected in series with each said color tone filter;
- An electronic organ comprising:
- control means connecting each said tone signal source to a different one of said loudspeakers reiteratively and sequentially; selectively operable means located between said control means and said loudspeakers for independently disconnecting each said source from its associated loudspeaker;
- An electronic organ system comprising:
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- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
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- Electrophonic Musical Instruments (AREA)
Description
Claims (5)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US66474567A | 1967-08-31 | 1967-08-31 |
Publications (1)
Publication Number | Publication Date |
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US3549777A true US3549777A (en) | 1970-12-22 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US664745A Expired - Lifetime US3549777A (en) | 1967-08-31 | 1967-08-31 | Electronic musical instrument system for sounding voices reiteratively in alternation |
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3681508A (en) * | 1969-09-30 | 1972-08-01 | Bohm R | Electronic organ |
US3696200A (en) * | 1970-10-27 | 1972-10-03 | Baldwin Co D H | Automatic sequential voicing |
US3715442A (en) * | 1970-12-15 | 1973-02-06 | A Freeman | Chord tone generator control system |
US3718748A (en) * | 1971-08-16 | 1973-02-27 | Baldwin Co D H | Multi-tone arpeggio system for electronic organ |
US3740449A (en) * | 1971-06-24 | 1973-06-19 | Conn C Ltd | Electric organ with chord playing and rhythm systems |
US3764721A (en) * | 1971-09-30 | 1973-10-09 | Motorola Inc | Electronic musical instrument |
US3910150A (en) * | 1974-01-11 | 1975-10-07 | Nippon Musical Instruments Mfg | Implementation of octave repeat in a computor organ |
US4137809A (en) * | 1970-12-30 | 1979-02-06 | D. H. Baldwin Company | Arpeggio system for electronic organs |
US4263829A (en) * | 1979-02-23 | 1981-04-28 | Nippon Gakki Seizo Kabushiki Kaisha | Trill performance circuit in electronic musical instrument |
US4273019A (en) * | 1978-07-11 | 1981-06-16 | Kabushiki Kaisha Suwa Seikosha | Electronic tone generator |
-
1967
- 1967-08-31 US US664745A patent/US3549777A/en not_active Expired - Lifetime
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3681508A (en) * | 1969-09-30 | 1972-08-01 | Bohm R | Electronic organ |
US3696200A (en) * | 1970-10-27 | 1972-10-03 | Baldwin Co D H | Automatic sequential voicing |
US3715442A (en) * | 1970-12-15 | 1973-02-06 | A Freeman | Chord tone generator control system |
US4137809A (en) * | 1970-12-30 | 1979-02-06 | D. H. Baldwin Company | Arpeggio system for electronic organs |
US3740449A (en) * | 1971-06-24 | 1973-06-19 | Conn C Ltd | Electric organ with chord playing and rhythm systems |
US3718748A (en) * | 1971-08-16 | 1973-02-27 | Baldwin Co D H | Multi-tone arpeggio system for electronic organ |
US3725562A (en) * | 1971-08-16 | 1973-04-03 | Baldwin Co D H | Arpeggio system for electronic organ |
US3764721A (en) * | 1971-09-30 | 1973-10-09 | Motorola Inc | Electronic musical instrument |
US3910150A (en) * | 1974-01-11 | 1975-10-07 | Nippon Musical Instruments Mfg | Implementation of octave repeat in a computor organ |
US4273019A (en) * | 1978-07-11 | 1981-06-16 | Kabushiki Kaisha Suwa Seikosha | Electronic tone generator |
US4263829A (en) * | 1979-02-23 | 1981-04-28 | Nippon Gakki Seizo Kabushiki Kaisha | Trill performance circuit in electronic musical instrument |
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Legal Events
Date | Code | Title | Description |
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AS | Assignment |
Owner name: SECURITY PACIFIC BUSINESS CREDIT INC., 10089 WILLO Free format text: SECURITY INTEREST;ASSIGNOR:BPO ACQUISITION CORP. A CORP OF DE;REEL/FRAME:004298/0001 Effective date: 19840615 Owner name: GENERAL ELECTRIC CREDIT CORPORATION, A NY CORP., C Free format text: SECURITY INTEREST;ASSIGNOR:BPO ACQUISITION CORP., A DE CORP;REEL/FRAME:004297/0802 Effective date: 19840615 |
|
AS | Assignment |
Owner name: BPO ACQUISITION CORP., 180 GILBERT AVE., CINCINNAT Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:D.H. BALDWIN COMPANY AN OH CORP.;REEL/FRAME:004385/0934 Effective date: 19840615 |
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AS | Assignment |
Owner name: BALDWIN PIANO & ORGAN COMPANY Free format text: CHANGE OF NAME;ASSIGNOR:BPO ACQUISTION CORP.;REEL/FRAME:004473/0501 Effective date: 19840612 |