JPH0160290U - - Google Patents
Info
- Publication number
- JPH0160290U JPH0160290U JP15703387U JP15703387U JPH0160290U JP H0160290 U JPH0160290 U JP H0160290U JP 15703387 U JP15703387 U JP 15703387U JP 15703387 U JP15703387 U JP 15703387U JP H0160290 U JPH0160290 U JP H0160290U
- Authority
- JP
- Japan
- Prior art keywords
- phase
- sound source
- circuit means
- channels
- time chart
- 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
- 238000005070 sampling Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 8
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 2
Description
第1図は本考案の一実施例に係る電子楽器の全
体構成図、第2図は音源LSIのブロツク図、第
3図は音源LSIのインタフエース/制御部とエ
ンベロープ/キーコード生成回路による外部RA
M占有の割振を示すタイムチヤート、第4図はC
PUから音源LSIのインタフエース/制御部に
送られるデータと書込制御信号のタイムチヤート
、第5図は楽音制御信号生成のための低速演算周
期と波形生成のための高速演算周期とを示すタイ
ムチヤート、第6図はインタフエース/制御部の
詳細図、第7図はタイミング信号発生回路が発生
する信号の一部のタイムチヤート、第8図はタイ
ミング信号発生回路が発生するその他の信号のタ
イムチヤート、第9図はタイミング信号発生回路
の詳細図、第10図はインストラクシヨンデコー
ダの詳細図、第11図は1バイト長のデータの転
送インストラクシヨンに対するインタフエース/
制御部の動作を示すタイムチヤート、第12図は
2バイト長のデータの転送インストラクシヨンに
対するインタフエース/制御部の動作を示すタイ
ムチヤート、第13図はフラグセツトのインスト
ラクシヨンに対するインタフエース/制御部の動
作を示すタイムチヤート、第14図はキーオフの
インストラクシヨンに対するインタフエース/制
御部の動作を示すタイムチヤート、第15図はO
Cレジスタへの書込みインストラクシヨンに対す
るインタフエース/制御部の動作を示すタイムチ
ヤート、第16図はモードの設定インストラクシ
ヨンまたは位相リセツトのインストラクシヨンに
対するインタフエース/制御部の動作を示すタイ
ムチヤート、第17図は位相リセツト信号発生回
路の詳細図、第18図は位相リセツト信号発生回
路のタイムチヤート、第19図は指数変換/位相
角生成回路のブロツク図である。
3……CPU、6……音源LSI、13……指
数変換/位相角生成回路、234……位相リセツ
ト信号発生回路。
Fig. 1 is an overall configuration diagram of an electronic musical instrument according to an embodiment of the present invention, Fig. 2 is a block diagram of the sound source LSI, and Fig. 3 is an external structure of the sound source LSI's interface/control section and envelope/key code generation circuit. R.A.
Time chart showing allocation of M occupancy, Figure 4 is C
A time chart of data and write control signals sent from the PU to the interface/control unit of the sound source LSI. Figure 5 is a time chart showing the low-speed calculation cycle for generating musical tone control signals and the high-speed calculation cycle for waveform generation. Figure 6 is a detailed diagram of the interface/control unit, Figure 7 is a time chart of some of the signals generated by the timing signal generation circuit, and Figure 8 is the time chart of other signals generated by the timing signal generation circuit. Figure 9 is a detailed diagram of the timing signal generation circuit, Figure 10 is a detailed diagram of the instruction decoder, and Figure 11 is an interface diagram for a 1-byte length data transfer instruction.
A time chart showing the operation of the control unit. Figure 12 is a time chart showing the operation of the interface/control unit in response to a 2-byte data transfer instruction. Figure 13 is a time chart showing the operation of the interface/control unit in response to a flag set instruction. 14 is a time chart showing the operation of the interface/control section in response to a key-off instruction. FIG. 15 is a time chart showing the operation of the interface/control section in response to a key-off instruction.
FIG. 16 is a time chart showing the operation of the interface/control unit in response to a write instruction to the C register. FIG. 16 is a time chart showing the operation of the interface/control unit in response to a mode setting instruction or a phase reset instruction. , FIG. 17 is a detailed diagram of the phase reset signal generation circuit, FIG. 18 is a time chart of the phase reset signal generation circuit, and FIG. 19 is a block diagram of the index conversion/phase angle generation circuit. 3... CPU, 6... Sound source LSI, 13... Index conversion/phase angle generation circuit, 234... Phase reset signal generation circuit.
Claims (1)
ルの楽音を生成可能な音源6内に設けられた位相
生成回路手段13が生成する各発音チヤンネルの
楽音の位相を所定の初期位相から開始させるため
に、上記音源と非同期で動作する音源制御CPU
3に、楽音の位相が初期化されるべきすべての発
音チヤンネルを1回の転送命令で指示する位
相同期チヤンネル指定手段を設けるとともに、上
記音源内に、上記位相同期チヤンネル指定手段に
より位相の初期化が指定されたすべての発音チヤ
ンネルを同一サンプリング時間内に解読して上記
位相生成回路手段におけるこれらの発音チヤンネ
ルの位相を所定の初期位相に設定する位相リセツ
ト回路手段234を設けたことを特徴とする楽音
位相同期装置。 In order to start from a predetermined initial phase the phase of the musical tone of each sound generation channel generated by the phase generation circuit means 13 provided in the sound source 6 which is capable of generating musical sounds of a plurality of sound generation channels for each sampling time, the above sound source Sound source control CPU that operates asynchronously with
3, a phase synchronization channel designation means is provided for instructing all sound generation channels whose phases are to be initialized with a single transfer command, and the phase is initialized in the sound source by the phase synchronization channel designation means. The present invention is characterized in that a phase reset circuit means 234 is provided for decoding all designated sounding channels within the same sampling time and setting the phases of these sounding channels in the phase generating circuit means to a predetermined initial phase. Musical tone phase synchronizer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987157033U JPH0750799Y2 (en) | 1987-10-14 | 1987-10-14 | Tone phase synchronizer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987157033U JPH0750799Y2 (en) | 1987-10-14 | 1987-10-14 | Tone phase synchronizer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0160290U true JPH0160290U (en) | 1989-04-17 |
JPH0750799Y2 JPH0750799Y2 (en) | 1995-11-15 |
Family
ID=31436114
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987157033U Expired - Lifetime JPH0750799Y2 (en) | 1987-10-14 | 1987-10-14 | Tone phase synchronizer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0750799Y2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08297491A (en) * | 1995-02-28 | 1996-11-12 | Yamaha Corp | Digital signal processor |
JP2010008880A (en) * | 2008-06-30 | 2010-01-14 | Kawai Musical Instr Mfg Co Ltd | Phase synchronizing apparatus for electronic musical sound generating apparatus |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5216216A (en) * | 1975-07-29 | 1977-02-07 | Nippon Gakki Seizo Kk | Electronic instrument |
JPS5383608A (en) * | 1976-12-29 | 1978-07-24 | Nippon Gakki Seizo Kk | Wave generator for electronic musical instruments |
JPS5615516A (en) * | 1979-07-16 | 1981-02-14 | Nissin Electric Co Ltd | Hydraulic control device for operating breaker |
JPS5943758A (en) * | 1982-08-04 | 1984-03-10 | ハ−・クランツ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング・ウント・コンパニイ | Gripper of clip tenter |
JPS6145296A (en) * | 1984-08-09 | 1986-03-05 | カシオ計算機株式会社 | Electronic musical instrument |
-
1987
- 1987-10-14 JP JP1987157033U patent/JPH0750799Y2/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5216216A (en) * | 1975-07-29 | 1977-02-07 | Nippon Gakki Seizo Kk | Electronic instrument |
JPS5383608A (en) * | 1976-12-29 | 1978-07-24 | Nippon Gakki Seizo Kk | Wave generator for electronic musical instruments |
JPS5615516A (en) * | 1979-07-16 | 1981-02-14 | Nissin Electric Co Ltd | Hydraulic control device for operating breaker |
JPS5943758A (en) * | 1982-08-04 | 1984-03-10 | ハ−・クランツ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング・ウント・コンパニイ | Gripper of clip tenter |
JPS6145296A (en) * | 1984-08-09 | 1986-03-05 | カシオ計算機株式会社 | Electronic musical instrument |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08297491A (en) * | 1995-02-28 | 1996-11-12 | Yamaha Corp | Digital signal processor |
JP2010008880A (en) * | 2008-06-30 | 2010-01-14 | Kawai Musical Instr Mfg Co Ltd | Phase synchronizing apparatus for electronic musical sound generating apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPH0750799Y2 (en) | 1995-11-15 |
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