GB1482302A - Implementation of alternate-pitch repeat in a computor organ - Google Patents

Implementation of alternate-pitch repeat in a computor organ

Info

Publication number
GB1482302A
GB1482302A GB299/75A GB29975A GB1482302A GB 1482302 A GB1482302 A GB 1482302A GB 299/75 A GB299/75 A GB 299/75A GB 29975 A GB29975 A GB 29975A GB 1482302 A GB1482302 A GB 1482302A
Authority
GB
United Kingdom
Prior art keywords
memory
octave
note
jan
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
GB299/75A
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.)
Nippon Gakki Co Ltd
Original Assignee
Nippon Gakki Co 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 Nippon Gakki Co Ltd filed Critical Nippon Gakki Co Ltd
Publication of GB1482302A publication Critical patent/GB1482302A/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
    • G10H7/00—Instruments in which the tones are synthesised from a data store, e.g. computer organs
    • G10H7/08—Instruments in which the tones are synthesised from a data store, e.g. computer organs by calculating functions or polynomial approximations to evaluate amplitudes at successive sample points of a tone waveform
    • G10H7/10—Instruments in which the tones are synthesised from a data store, e.g. computer organs by calculating functions or polynomial approximations to evaluate amplitudes at successive sample points of a tone waveform using coefficients or parameters stored in a memory, e.g. Fourier coefficients
    • G10H7/105—Instruments in which the tones are synthesised from a data store, e.g. computer organs by calculating functions or polynomial approximations to evaluate amplitudes at successive sample points of a tone waveform using coefficients or parameters stored in a memory, e.g. Fourier coefficients using Fourier coefficients
    • 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

Abstract

1482302 Electrophonic musical instrument NIPPON GAKKI SEIZO KK 2 Jan 1975 [11 Jan 1974] 299/75 Heading G5J An electrophonic musical instrument has means for sounding in rapid succession a note selected on the keyboard and another note separated by a predetermined interval (e.g. an octave or a sixth) from the selected note. The invention is described applied to a computer organ as in Specification No. 1,441,776 in which Fourier components are calculated and added to produce waveform sample points. The signal qR on line 31 indicating the sample point being evaluated is fed to a shift register which is alternately shifted left and back again by a clock 50 so that the notes corresponding to qR and 2qR are alternately produced. If an interval other than the octave is required, another type of multiplier is used. In another embodiment, Fig. 5 (not shown), the octave repeat clock varies the number R read-out of the memory 28. The harmonic coefficients Cn are scaled by factors accessed from memory 58 to provide a desired attack and decay for the alternating notes. On release of the key, a slow decay is provided by control circuit 68 which either varies the first accessed address in memory 58 or scales down output of memory 58.
GB299/75A 1974-01-11 1975-01-02 Implementation of alternate-pitch repeat in a computor organ Expired GB1482302A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US432683A US3910150A (en) 1974-01-11 1974-01-11 Implementation of octave repeat in a computor organ

Publications (1)

Publication Number Publication Date
GB1482302A true GB1482302A (en) 1977-08-10

Family

ID=23717176

Family Applications (1)

Application Number Title Priority Date Filing Date
GB299/75A Expired GB1482302A (en) 1974-01-11 1975-01-02 Implementation of alternate-pitch repeat in a computor organ

Country Status (5)

Country Link
US (1) US3910150A (en)
JP (1) JPS5419292B2 (en)
DE (1) DE2500839C3 (en)
GB (1) GB1482302A (en)
NL (1) NL7500303A (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4119005A (en) * 1973-03-10 1978-10-10 Nippon Gakki Seizo Kabushiki Kaisha System for generating tone source waveshapes
JPS5735477B2 (en) * 1973-03-10 1982-07-29
US4083285A (en) * 1974-09-27 1978-04-11 Nippon Gakki Seizo Kabushiki Kaisha Electronic musical instrument
JPS5420325B2 (en) * 1974-11-15 1979-07-21
JPS5420326B2 (en) * 1974-11-15 1979-07-21
JPS532763B2 (en) * 1974-11-15 1978-01-31
US4033219A (en) * 1975-02-27 1977-07-05 Nippon Gakki Seizo Kabushiki Kaisha Touch responsive control system for a keyboard electronic musical instrument
US4133241A (en) * 1975-05-27 1979-01-09 Nippon Gakki Seizo Kabushiki Kaisha Electronic musical instrument utilizing recursive algorithm
JPS5229209A (en) * 1975-08-29 1977-03-04 Nippon Gakki Seizo Kk Electronic musical instrument
JPS5237028A (en) * 1975-09-17 1977-03-22 Nippon Gakki Seizo Kk Electronical music instrument
US4166405A (en) * 1975-09-29 1979-09-04 Nippon Gakki Seizo Kabushiki Kaisha Electronic musical instrument
FR2344907A1 (en) * 1976-03-16 1977-10-14 Deforeit Christian POLYPHONIC ELECTRONIC MUSICAL INSTRUMENT
JPS538125A (en) * 1976-07-12 1978-01-25 Nippon Gakki Seizo Kk Automatic arpeggio performance system
US4145946A (en) * 1976-08-09 1979-03-27 Kawai Musical Instrument Mfg. Co., Ltd. Sustained repeat control digital polyphonic synthesizer
US4052924A (en) * 1976-08-09 1977-10-11 Kawai Musical Instrument Mfg. Co. Ltd. Interval repeat generator for keyboard musical instrument
US4177706A (en) * 1976-09-08 1979-12-11 Greenberger Alan J Digital real time music synthesizer
JPS5842479B2 (en) * 1976-10-18 1983-09-20 ヤマハ株式会社 Wave generator for electronic musical instruments
JPS5376018A (en) * 1976-12-17 1978-07-06 Nippon Gakki Seizo Kk Electronic musical instrument
US4178825A (en) * 1977-06-06 1979-12-18 Kawai Musical Instrument Mfg. Co. Ltd. Musical tone synthesizer for generating a marimba effect
US4194426A (en) * 1978-03-13 1980-03-25 Kawai Musical Instrument Mfg. Co. Ltd. Echo effect circuit for an electronic musical instrument
JPS54143125A (en) * 1978-04-24 1979-11-08 Kawai Musical Instr Mfg Co Multiple tone generator for electronic musical instrument
JPS55113092A (en) * 1979-02-23 1980-09-01 Nippon Musical Instruments Mfg Effect circuit for electronic musical instrument
JPS55137429A (en) * 1979-04-09 1980-10-27 Osaka Gas Co Ltd Oven
US4326276A (en) * 1979-12-04 1982-04-20 Scovill Inc. Musical door chime preferably also combined with a clock for annunciating the time
US4322996A (en) * 1980-04-16 1982-04-06 Norlin Industries, Inc. Alternating repeat keying signal generator
ITMC20030032A1 (en) * 2003-03-28 2004-09-29 Viscount Internat Spa METHOD AND ELECTRONIC DEVICE TO REPRODUCE THE SOUND OF THE BARRELS TO THE SOUL OF THE LITURGIC ORGAN, EXPLOITING THE TECHNIQUE OF PHYSICAL MODELING OF ACOUSTIC INSTRUMENTS
CN114875566A (en) * 2022-03-20 2022-08-09 浙江理工大学 Processing method of lace fabric based on music

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3476864A (en) * 1966-03-09 1969-11-04 Baldwin Co D H Electronic organ reiteration system utilizing a zero-crossing preference circuit
US3515792A (en) * 1967-08-16 1970-06-02 North American Rockwell Digital organ
US3549777A (en) * 1967-08-31 1970-12-22 Baldwin Co D H Electronic musical instrument system for sounding voices reiteratively in alternation
US3549778A (en) * 1969-03-07 1970-12-22 Baldwin Co D H Electronic organ with alternate reiteration by three-note groups
US3553335A (en) * 1969-04-14 1971-01-05 Baldwin Co D H Electronic organ having plural tone sources and loudspeakers with alternate reiterative gating, cross gating, and method
US3610805A (en) * 1969-10-30 1971-10-05 North American Rockwell Attack and decay system for a digital electronic organ
US3809786A (en) * 1972-02-14 1974-05-07 Deutsch Res Lab Computor organ
US3809788A (en) * 1972-10-17 1974-05-07 Nippon Musical Instruments Mfg Computor organ using parallel processing
US3809789A (en) * 1972-12-13 1974-05-07 Nippon Musical Instruments Mfg Computor organ using harmonic limiting
US3809792A (en) * 1973-01-05 1974-05-07 Nippon Musical Instruments Mfg Production of celeste in a computor organ
US3809790A (en) * 1973-01-31 1974-05-07 Nippon Musical Instruments Mfg Implementation of combined footage stops in a computor organ

Also Published As

Publication number Publication date
DE2500839A1 (en) 1975-07-17
US3910150A (en) 1975-10-07
DE2500839B2 (en) 1980-04-24
DE2500839C3 (en) 1980-12-11
NL7500303A (en) 1975-07-15
JPS5419292B2 (en) 1979-07-13
JPS50103319A (en) 1975-08-15

Similar Documents

Publication Publication Date Title
GB1482302A (en) Implementation of alternate-pitch repeat in a computor organ
US4130043A (en) Electronic musical instrument having filter-and-delay loop for tone production
US4133241A (en) Electronic musical instrument utilizing recursive algorithm
JPS5466824A (en) Electronic musical instruments
GB1469461A (en) Anharmonic overtone generation in a computor organ
US3992971A (en) Electronic musical instrument
GB1520954A (en) Electronic musical instrument
US4176573A (en) Intrakeyboard coupling and transposition control for a keyboard musical instrument
USRE31653E (en) Electronic musical instrument of the harmonic synthesis type
GB1489153A (en) Electronic musical instrument
US4387622A (en) Musical tone generator with independent time varying harmonics
JPS5418720A (en) Electronic musical instrument
US3979989A (en) Electronic musical instrument
GB2039394A (en) Key input system for electronic calculators
GB2087622A (en) Musical electronic calculator
US4215614A (en) Electronic musical instruments of harmonic wave synthesizing type
US4205577A (en) Implementation of multiple voices in an electronic musical instrument
JPS5456812A (en) Sample tone generating system in electronic musical instrument
JPH01179090A (en) Automatic playing device
US4178825A (en) Musical tone synthesizer for generating a marimba effect
US3994195A (en) Electronic musical instrument
NO793756L (en) POLYPHONIC SYNTHETIZER FOR PERIODIC SIGNALS USING NUMERICAL TECHNIQUES
JPS6086597A (en) Electronic musical instrument with musical scale setting function
US4429605A (en) Electronic musical instrument
JPS54150114A (en) Electronic musical instrument

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940102