GB1406377A - Electronic musical instrument - Google Patents
Electronic musical instrumentInfo
- Publication number
- GB1406377A GB1406377A GB1008573A GB1008573A GB1406377A GB 1406377 A GB1406377 A GB 1406377A GB 1008573 A GB1008573 A GB 1008573A GB 1008573 A GB1008573 A GB 1008573A GB 1406377 A GB1406377 A GB 1406377A
- Authority
- GB
- United Kingdom
- Prior art keywords
- frequency
- modulation
- khz
- channel
- frequencies
- 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
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
- G10H1/04—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation
- G10H1/043—Continuous modulation
-
- 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
- G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
- G10H2250/041—Delay lines applied to musical processing
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Electrophonic Musical Instruments (AREA)
- Toys (AREA)
Abstract
1406377 Electrophonic musical instrument EMINENT NV 1 March 1973 [3 March 1972] 10085/73 Heading G5J To add chorus effects to an electric organ the audio output 52 is fed to multiple loud-speakers 63, 73, 83 via identical channels 60, 70, 80 with phase modulators 64, 74, 84 supplied from two mixed sinusoidal signals of similar amplitude and having frequencies below 1 Hz and 5-6 Hz. The modulation to each channel is phase shifted through 360 degrees divided by the number of channels, on both modulating frequencies. Modulation is effected via a square ultrasonic pulse train for each channel, frequency modulated via the phase shifting means from the mixed low frequency source. The square waves step MOSFET shift registers, typically of 185 stages, giving 2 ms. delay at 45 kHz stepping frequency. Frequency modulation of this over the range 30-60 kHz varies the delay from 3 to 1À5 ms., giving constant musical interval of modulation on all audio frequencies (i.e. notes). The lowest ultrasonic stepping frequency must exceed twice the maximum audio signal frequency (typically 15 kHz). Outputs from the shift registers are reconverted to musical tones by low pass (20 kHz cut off) filters 61, 71, 81 before amplification 62, 72, 82 and entry to loud-speakers 63, 73, 83 or alternatively to the terminal of a common output channel.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7202834A NL155112B (en) | 1972-03-03 | 1972-03-03 | ELECTRONIC MUSIC INSTRUMENT. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1406377A true GB1406377A (en) | 1975-09-17 |
Family
ID=19815503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1008573A Expired GB1406377A (en) | 1972-03-03 | 1973-03-01 | Electronic musical instrument |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPS5238888B2 (en) |
| BE (1) | BE796112A (en) |
| CA (1) | CA970603A (en) |
| CH (1) | CH556083A (en) |
| DE (1) | DE2309321C3 (en) |
| FR (1) | FR2174852B1 (en) |
| GB (1) | GB1406377A (en) |
| IT (1) | IT977951B (en) |
| NL (1) | NL155112B (en) |
| NO (1) | NO137102C (en) |
| SE (1) | SE387457B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU459101B2 (en) * | 1972-02-10 | 1975-03-20 | Matsushita Electric Industrial Co., Ltd. | Samplling modulation system for an electronic misical instrument |
| JPS55129400A (en) * | 1972-07-20 | 1980-10-07 | Nippon Musical Instruments Mfg | Ensemble effect generator |
| US3866505A (en) * | 1972-07-20 | 1975-02-18 | Nippon Musical Instruments Mfg | Ensemble effect imparting device using a bucket brigade device for an electric musical instrument |
| JPS4932631A (en) * | 1972-07-20 | 1974-03-25 | ||
| JPS4934316A (en) * | 1972-07-26 | 1974-03-29 | ||
| JPS4961524U (en) * | 1972-09-05 | 1974-05-30 | ||
| JPS4945714A (en) * | 1972-09-05 | 1974-05-01 | Nippon Musical Instruments Mfg | |
| JPS4975131A (en) * | 1972-11-21 | 1974-07-19 | ||
| JPS5127914A (en) * | 1974-09-03 | 1976-03-09 | Matsushita Electric Ind Co Ltd | |
| US4038898A (en) * | 1975-03-03 | 1977-08-02 | Norlin Music, Inc. | System for producing chorus effect |
| DE2952113C2 (en) * | 1979-12-22 | 1983-05-19 | Matth. Hohner Ag, 7218 Trossingen | String chorus circuit |
| JPS5918466Y2 (en) * | 1980-03-29 | 1984-05-28 | ヤマハ株式会社 | Ensemble effect generator |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA884431A (en) * | 1971-10-26 | Matsushita Electric Industrial Co., Ltd. | System for processing music to produce a novel tremulant effect | |
| US3146292A (en) * | 1954-03-08 | 1964-08-25 | Don L Bonham | Electrical vibrato and tremolo devices |
| US3083606A (en) * | 1959-03-02 | 1963-04-02 | Don L Bonham | Electrical music system |
| US3146291A (en) * | 1959-12-28 | 1964-08-25 | Donald J Leslie | Pitch broadening apparatus for musical instruments having electronic tone generators |
| US3272906A (en) * | 1960-10-25 | 1966-09-13 | Zenith Radio Corp | Audio reproduction system |
| US3257495A (en) * | 1962-01-31 | 1966-06-21 | Scope Inc | Vibrato systems |
| US3258519A (en) * | 1962-06-18 | 1966-06-28 | Hammond Organ Co | Method and apparatus for securing vibrato effects |
| US3256380A (en) * | 1962-06-26 | 1966-06-14 | Hammond Organ Co | Cascaded phase shift core reactor arrangement for securing vibrato in an organ |
| US3474181A (en) * | 1966-06-02 | 1969-10-21 | Hammond Corp | Electrical musical instrument animator of the scanned progressive phase shift type |
-
1972
- 1972-03-03 NL NL7202834A patent/NL155112B/en not_active IP Right Cessation
-
1973
- 1973-02-20 FR FR7305951A patent/FR2174852B1/fr not_active Expired
- 1973-02-24 DE DE19732309321 patent/DE2309321C3/en not_active Expired
- 1973-02-26 CH CH273473A patent/CH556083A/en not_active IP Right Cessation
- 1973-02-27 CA CA164,687A patent/CA970603A/en not_active Expired
- 1973-02-28 BE BE128232A patent/BE796112A/en not_active IP Right Cessation
- 1973-03-01 GB GB1008573A patent/GB1406377A/en not_active Expired
- 1973-03-02 NO NO84973A patent/NO137102C/en unknown
- 1973-03-02 JP JP48024443A patent/JPS5238888B2/ja not_active Expired
- 1973-03-02 SE SE7302936A patent/SE387457B/en unknown
- 1973-03-02 IT IT6755873A patent/IT977951B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| NL155112B (en) | 1977-11-15 |
| DE2309321A1 (en) | 1973-09-13 |
| DE2309321C3 (en) | 1982-01-21 |
| SE387457B (en) | 1976-09-06 |
| JPS5238888B2 (en) | 1977-10-01 |
| BE796112A (en) | 1973-06-18 |
| DE2309321B2 (en) | 1978-12-07 |
| CA970603A (en) | 1975-07-08 |
| JPS48101919A (en) | 1973-12-21 |
| NL7202834A (en) | 1973-09-06 |
| IT977951B (en) | 1974-09-20 |
| FR2174852A1 (en) | 1973-10-19 |
| NO137102B (en) | 1977-09-19 |
| NO137102C (en) | 1977-12-28 |
| CH556083A (en) | 1974-11-15 |
| FR2174852B1 (en) | 1974-05-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |