JPS54137318A - Musical sound waveform setting device for electronic instrument - Google Patents
Musical sound waveform setting device for electronic instrumentInfo
- Publication number
- JPS54137318A JPS54137318A JP4552878A JP4552878A JPS54137318A JP S54137318 A JPS54137318 A JP S54137318A JP 4552878 A JP4552878 A JP 4552878A JP 4552878 A JP4552878 A JP 4552878A JP S54137318 A JPS54137318 A JP S54137318A
- Authority
- JP
- Japan
- Prior art keywords
- tone
- waveform
- circuit
- block
- key depression
- 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.)
- Granted
Links
Landscapes
- Electrophonic Musical Instruments (AREA)
Abstract
PURPOSE: To generate the musical tone sounds, to which the aging of the harmonic construction is imparted, by dividing the one cycle waveform of a key depression tone into a plurality of blocks thereby to control the rising and breaking amplitude and curve of the waveform of each block.
CONSTITUTION: In response to the counted step signals of a tone clock frequency control circuit 2 according to the key depression tone code from a tone input code register 1, the one cycle of the musical sound waveform corresponding to the tone is divided by a waveform synchronous counting circuit into a plurality of blocks so that the waveform codes of each block are fed through a decoder 4 thereby to address a program designating unit 5. This unit 5 generates the coefficient value including the up and down for the waveform amplitude control of each block thereby to impress it upon a multiplying circuit 6. On the other hand, the circuit 6 is supplied from an envelope counter 7 with an envelope coefficient according to the time laspe of the key depression and to the volume code. As a result, the circuit 6, an adder 8 and a summing device 9 simultaneously generate the musical sounds of different waveforms, and the chords to which the aging change of the harmonic construction are effectively imparted can be generated with the use of a simple construction.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (29)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53045528A JPS6042948B2 (en) | 1978-04-17 | 1978-04-17 | Musical sound waveform generator for electronic musical instruments |
GB08211603A GB2102612B (en) | 1978-03-18 | 1979-03-14 | Tone generator for electronic musical instrument |
GB08211602A GB2102611B (en) | 1978-03-18 | 1979-03-14 | Electronic musical instrument |
GB08211604A GB2101787B (en) | 1978-03-18 | 1979-03-14 | Electronic musical instrument |
GB7908936A GB2017376B (en) | 1978-03-18 | 1979-03-14 | Electronic musical instrument |
AU45158/79A AU526989B2 (en) | 1978-03-18 | 1979-03-15 | Electronic musical instrument |
DE2954064A DE2954064C2 (en) | 1978-03-18 | 1979-03-16 | Electronic musical instrument |
DE2910472A DE2910472C2 (en) | 1978-03-18 | 1979-03-16 | Electronic musical instrument |
DE19792954066 DE2954066C2 (en) | 1978-03-18 | 1979-03-16 | Electronic musical instrument |
NLAANVRAGE7902090,A NL181690C (en) | 1978-03-18 | 1979-03-16 | ELECTRONIC MUSIC INSTRUMENT. |
CA323,664A CA1132382A (en) | 1978-03-18 | 1979-03-16 | Electronic musical instrument |
DE19792954065 DE2954065C2 (en) | 1978-03-18 | 1979-03-16 | Electronic musical instrument |
FR7906733A FR2473173A1 (en) | 1978-03-18 | 1979-03-16 | Electronic musical instrument with progressive digital counter - has volume control and period counter dividing period into blocks with stages and accumulates volume and tone signals for output loudspeaker |
AT0206279A AT389957B (en) | 1978-03-18 | 1979-03-19 | ELECTRONIC MUSIC INSTRUMENT |
IT48408/79A IT1193752B (en) | 1978-03-18 | 1979-03-19 | ELECTRONIC MUSICAL INSTRUMENT |
CH257779A CH646263A5 (en) | 1978-03-18 | 1979-03-19 | ELECTRONIC MUSIC INSTRUMENT. |
US06/320,887 US4515056A (en) | 1978-03-18 | 1981-11-13 | Electronic musical instrument |
US06/395,920 US4475431A (en) | 1978-03-18 | 1982-07-07 | Electronic musical instrument |
CA000409459A CA1151450A (en) | 1978-03-18 | 1982-08-13 | Electronic musical instrument |
CA000410153A CA1156502A (en) | 1978-03-18 | 1982-08-25 | Electronic musical instrument |
CA000410154A CA1164255A (en) | 1978-03-18 | 1982-08-25 | Electronic musical instrument |
AU90671/82A AU559298B2 (en) | 1978-03-18 | 1982-11-17 | Electronic musical instrument |
NLAANVRAGE8204852,A NL187828C (en) | 1978-03-18 | 1982-12-16 | ELECTRONIC MUSIC INSTRUMENT. |
NLAANVRAGE8204851,A NL187827C (en) | 1978-03-18 | 1982-12-16 | ELECTRONIC MUSIC INSTRUMENT. |
IT8249703A IT1210707B (en) | 1978-03-18 | 1982-12-20 | ELECTRONIC MUSICAL INSTRUMENT |
IT8249704A IT1210708B (en) | 1978-03-18 | 1982-12-20 | ELECTRONIC MUSICAL INSTRUMENT |
FR8303120A FR2517854B1 (en) | 1978-03-18 | 1983-02-25 | ELECTRONIC MUSIC INSTRUMENT |
FR8303121A FR2517855B1 (en) | 1978-03-18 | 1983-02-25 | ELECTRONIC MUSIC INSTRUMENT |
US06/706,904 US4590838A (en) | 1978-03-18 | 1985-03-01 | Electronic musical instrument |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53045528A JPS6042948B2 (en) | 1978-04-17 | 1978-04-17 | Musical sound waveform generator for electronic musical instruments |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54137318A true JPS54137318A (en) | 1979-10-25 |
JPS6042948B2 JPS6042948B2 (en) | 1985-09-25 |
Family
ID=12721900
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53045528A Expired JPS6042948B2 (en) | 1978-03-18 | 1978-04-17 | Musical sound waveform generator for electronic musical instruments |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6042948B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57167095A (en) * | 1981-04-08 | 1982-10-14 | Nippon Electric Co | Signal processor |
-
1978
- 1978-04-17 JP JP53045528A patent/JPS6042948B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57167095A (en) * | 1981-04-08 | 1982-10-14 | Nippon Electric Co | Signal processor |
JPH0223873B2 (en) * | 1981-04-08 | 1990-05-25 | Nippon Electric Co |
Also Published As
Publication number | Publication date |
---|---|
JPS6042948B2 (en) | 1985-09-25 |
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