JPS6246497U

JPS6246497U -

Info

Publication number: JPS6246497U
Application number: JP12738986U
Authority: JP
Priority date: 1986-08-21
Filing date: 1986-08-21
Publication date: 1987-03-20

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来のシンセサイザの基本構成を示す
ブロツク図、第２図は第１図中制御回路の出力波
形図、第３図は本考案実施例の構成を示すブロツ
ク図、第４図は第３図における制御回路の出力波
形図、第５図は第３図中の波形変換回路と制御回
路の具体的構成例を示す図である。ＴＨＧ……音高電圧発生回路、ＶＣＯ……電圧
制御型発振器、ＶＣＦ……電圧制御型フイルタ、
ＶＣＡ……電圧制御型増幅器、ＣＴＣ……制御回
路、ＷＳＣ……波形変換回路。 FIG. 1 is a block diagram showing the basic configuration of a conventional synthesizer, FIG. 2 is an output waveform diagram of the control circuit in FIG. 1, FIG. 3 is a block diagram showing the configuration of an embodiment of the present invention, and FIG. 3 is an output waveform diagram of the control circuit, and FIG. 5 is a diagram showing a specific configuration example of the waveform conversion circuit and control circuit in FIG. 3. THG...Tone high voltage generation circuit, VCO...Voltage controlled oscillator, VCF...Voltage controlled filter,
VCA...voltage controlled amplifier, CTC...control circuit, WSC...waveform conversion circuit.

補正昭６１．９．１７実用新案登録請求の範囲を次のように補正する
。Amendment September 17, 1986 The scope of claims for utility model registration is amended as follows.

【実用新案登録請求の範囲】押鍵により音高電圧を発生する回路の出力を電
圧制御型発振器を介し楽音形成回路に印加し、前
記電圧制御型発振器と前記楽音形成回路に対する
各別の制御回路を設け、各制御回路には前記押鍵
による信号が入力されている電子楽器において、電圧制御型発振器の出力の一部を楽音形成回路
以外に波形変換回路に印加し、該波形変換回路出
力は前記制御回路に印加する構成とし、且つ前記波形変換回路からは音高によりパルス
占有比が変化する波形が得られ、前記制御回路は波形変換回路の出力が印加され
て、その出力信号の立上り・立下り特性を音高に
より異ならせる波形とすることを特徴とする電子楽器。[Claims for Utility Model Registration] The output of a circuit that generates a tone voltage when a key is pressed is applied to a musical tone forming circuit via a voltage controlled oscillator, and separate control circuits are provided for the voltage controlled oscillator and the musical tone forming circuit. In an electronic musical instrument in which a signal from the key press is input to each control circuit, a part of the output of the voltage-controlled oscillator is applied to a waveform conversion circuit in addition to the musical tone forming circuit, and the output of the waveform conversion circuit is The waveform is applied to the control circuit, and the waveform conversion circuit obtains a waveform whose pulse occupancy ratio changes depending on the pitch, and the control circuit receives the output of the waveform conversion circuit and converts the rise and rise of the output signal. An electronic musical instrument characterized by a waveform whose falling characteristics vary depending on pitch.

Claims

【実用新案登録請求の範囲】押鍵により音高電圧を発生する回路の出力を電
圧制御型発振器を介し楽音形成回路に印加すると
共に、押鍵信号出力より電圧制御型発振器と楽音
形成回路への制御信号を生成する制御回路を具備
する電子楽器において、電圧制御型発振器出力の一部を音高によりパル
ス占有比が変化する波形を得る波形変換回路を介
し前記制御回路に印加し、該制御回路の構成は出
力信号の立上り立下り特性が音高により異なる波
形を発するようにしたことを特徴とする電子楽器
。[Claim for Utility Model Registration] The output of a circuit that generates a tone voltage in response to a key press is applied to a musical tone forming circuit via a voltage controlled oscillator, and the key press signal output is applied to a voltage controlled oscillator and a musical tone forming circuit. In an electronic musical instrument equipped with a control circuit that generates a control signal, a part of the voltage-controlled oscillator output is applied to the control circuit via a waveform conversion circuit that obtains a waveform whose pulse occupation ratio changes depending on the pitch, and the control circuit An electronic musical instrument characterized in that the rise and fall characteristics of the output signal emit different waveforms depending on the pitch.