JPS6426796U - - Google Patents
Info
- Publication number
- JPS6426796U JPS6426796U JP12050887U JP12050887U JPS6426796U JP S6426796 U JPS6426796 U JP S6426796U JP 12050887 U JP12050887 U JP 12050887U JP 12050887 U JP12050887 U JP 12050887U JP S6426796 U JPS6426796 U JP S6426796U
- Authority
- JP
- Japan
- Prior art keywords
- musical
- waveform data
- section
- bits
- sound
- 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
- 238000010586 diagram Methods 0.000 description 9
Description
第１図は本考案の一実施例による電子楽器の全
体回路図、第２図は第１図における楽音発生部の
全体回路図、第３図は第２図における補間部の処
理内容を説明するための図、第４図は第２図にお
ける音源制御部の詳細回路図、第５図は音源制御
部にて生成される各種の時分割制御信号のタイム
チヤート図、第６図は第２図におけるアドレス制
御部の詳細回路図、第７図はアドレス制御部の動
作を示すタイムチヤート図、第８図は第２図にお
けるチヤンネルオン・オフ部の詳細回路図、第９
図はチヤンネルオン・オフ部のチヤンネルオン・
オフＲＡＭの構成図、第１０図はチヤンネルオン
・オフ部の動作を示すタイムチヤート図、第１１
図は第２図における補間部の詳細回路図、第１２
図は第２図における波形データラツチ部の詳細回
路図、第１３図は波形データラツチ部の動作を示
すタイムチヤート図、第１４図は第２図における
出力部の詳細回路図、第１５図は出力部の出力パ
ターン例を示す図、第１６図は出力部の動作を示
すタイムチヤート図である。
２……楽音発生部、３……楽音波形記憶部、２
４……波形データラツチ部、２４―１……インバ
ータ群、２４―３……オアゲート群、ＶＤＤ……
電源電圧、Ｒ……プルアツプ抵抗。
FIG. 1 is an overall circuit diagram of an electronic musical instrument according to an embodiment of the present invention, FIG. 2 is an overall circuit diagram of the musical tone generation section in FIG. 1, and FIG. 3 explains the processing contents of the interpolation section in FIG. 2. 4 is a detailed circuit diagram of the sound source control section in FIG. 2, FIG. 5 is a time chart of various time division control signals generated in the sound source control section, and FIG. 6 is a detailed circuit diagram of the sound source control section in FIG. 7 is a time chart showing the operation of the address control section. FIG. 8 is a detailed circuit diagram of the channel on/off section in FIG. 2.
The figure shows the channel on/off section.
Figure 10 is a block diagram of the off RAM, and Figure 11 is a time chart showing the operation of the channel on/off section.
The figure is a detailed circuit diagram of the interpolation section in Figure 2,
The figure shows a detailed circuit diagram of the waveform data latch section in FIG. 2, FIG. 13 is a time chart showing the operation of the waveform data latch section, FIG. 14 is a detailed circuit diagram of the output section in FIG. 2, and FIG. 15 shows the output section. FIG. 16 is a time chart showing the operation of the output section. 2... Musical sound generation section, 3... Musical sound waveform storage section, 2
4... Waveform data latch section, 24-1... Inverter group, 24-3... OR gate group, VDD...
Power supply voltage, R...Pull-up resistance.
Claims (1)
を同時に生成放音するポリフオニツク電子楽器に
おいて、 複数ビツトにて構成される楽音波形データを記
憶する記憶手段と、 この記憶手段から読出された各チヤンネルの楽
音波形データを一定のビツト数とすべく冗長デー
タを付加する付加手段と、 この付加手段により一定のビツト数とされた各
楽音波形データに基づいて楽音を生成放音する楽
音生成放音手段と、 を具備したことを特徴とする電子楽器。[Scope of Claim for Utility Model Registration] In a polyphonic electronic musical instrument that simultaneously generates and emits multiple musical tones through time-sharing processing of multiple channels, a storage means for storing musical sound waveform data composed of multiple bits, and from this storage means. Adding means for adding redundant data so that the read musical waveform data of each channel has a constant number of bits; and generating and emitting musical tones based on each musical waveform data that has been made to have a constant number of bits by the adding means. An electronic musical instrument characterized by comprising: a musical sound generating sound emitting means;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12050887U JP2513489Y2 (en) | 1987-08-07 | 1987-08-07 | Music signal output device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12050887U JP2513489Y2 (en) | 1987-08-07 | 1987-08-07 | Music signal output device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6426796U true JPS6426796U (en) | 1989-02-15 |
| JP2513489Y2 JP2513489Y2 (en) | 1996-10-09 |
Family
ID=31366680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12050887U Expired - Lifetime JP2513489Y2 (en) | 1987-08-07 | 1987-08-07 | Music signal output device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2513489Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03180896A (en) * | 1989-12-09 | 1991-08-06 | Yamaha Corp | Data generating device of electronic musical instrument |
| JPH08211876A (en) * | 1995-11-13 | 1996-08-20 | Yamaha Corp | Data generating device for electronic musical instrument |
-
1987
- 1987-08-07 JP JP12050887U patent/JP2513489Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03180896A (en) * | 1989-12-09 | 1991-08-06 | Yamaha Corp | Data generating device of electronic musical instrument |
| JPH08211876A (en) * | 1995-11-13 | 1996-08-20 | Yamaha Corp | Data generating device for electronic musical instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2513489Y2 (en) | 1996-10-09 |
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