JPS58160992A - Electronic musical instrument - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electronic music WK in which different performance sounds are simultaneously generated and emitted by a plurality of musical sound generation systems.

In recent years, electronic musical instruments that can simultaneously generate and emit a plurality of different performance sounds, such as manual performance sounds and automatic performance sounds, have been put into practical use. In addition, electronic musical instruments that generate and emit musical tones with a stereo effect have been put into practical use for some time, but the method of generating the stereo effect of this type of electronic musical instrument is based on the air around the speaker, which completely changes the speaker itself. It has been proposed to set sound image localization for each tone, emit phase-controlled musical tones from left and right O speakers, respectively, and to set sound image localization for each tone.

However, all of these O methods have a drawback in that the degree of freedom in sound image localization is small and a sufficient stereo effect cannot be obtained.

The present invention was made against the background of the above-mentioned circumstances, and its purpose is to provide an electronic musical instrument in which sound image localization information can be individually set for each of a plurality of different performance sounds that are generated simultaneously. It is.

An embodiment of the present invention will be described below with reference to the drawings.

In the m1WJ, one keyboard manufacturer is equipped with multiple keys, various switches, etc., and the output signals from the keys and switches are sent via path line B to 4 systems (channel, s
, o, n) are supplied to each of the provided musical tone generation circuits 2-1 to 2-4. The musical sound generation path systems 2-1 to 2-4 all have the same configuration, and are configured to generate collected sounds independently in each channel. Therefore stripes 1v! J
The structure of the sound collection and generation circuit system 2-1 of the whip channel is specifically shown as a representative, and the other components are not shown.

In the following explanation, the musical tone generation circuit system 2-1 will be mainly explained.

Pitch data #' output by key operation on keyboard 1
input to the ie sound generator 3. The sound collection generator 3 also includes tone color designation data from a tone color designation switch 4 provided on the keyboard l, and musical tone information for automatic performance read out from a performance memory 5 consisting of a RAM (random access memory). Also input pitch data. And musical tone generator 3
#'i Generate musical tone data based on each input data and send it to a voltage controlled amplifier (VAA) 6- as an analog signal.
1.Apply to 6-2. These voltage controlled amplifiers 6-1
．． A sound image localization voltage, which will be described later, is also applied to 6-2, but the output signal R of voltage-controlled amplifier 6-1 (Vll unevenness)
1 is applied to the terminal "1" of the mixer amplifier 7-1, and the output signal L1 of the voltage controlled amplifier 6-2 (vaA(b)) is applied to the mixer amplifier 7-50 terminal rlJ. Facing the voltage controlled tank @ IHI-1, 6-5 and the same circuit company and others B, 0, D musical sound generation - Tsumugi thread 2-
2.2-) %2-4 are provided with output signals R1s Xaz% KB, DBs R4, L4, respectively.
The signals R□ and RB s 14 a are input to the mixer/amplifier 7-1C) terminals r
Mixer amplifier 7-2 terminals “2”, “)”, rAJ
Enter K. And mixer amplifier 7-λ, 7-11F
The O input signals from each terminal "l" to "4" are mixed and then amplified, and the O output is given to the right speaker 8-1t and the left O speaker 8-: for sound emission.

As shown in WJ in the performance memory 5, sound image localization data written in the area of the first address of the second channel and the first address by the operation of the sound image localization setting switch 90, which is a volume switch provided on the keyboard L, is stored. In addition, the following address area Ka for automatic performance O is configured such that a pair of pitch data and tone length data representing the electronic tone information of a predetermined melody are written and stored by key operations on the keyboard L. . The writing and reading operations of the above-mentioned data to and from the performance memory 5 are fully controlled by the automatic performance side aVO.

The sound image localization data written into the performance memory 5 is expressed by cubit data as shown in FIG. can be obtained. As shown in Figure 1), the output voltage of the sound image localization voltage switch 9 is maximum (+V volts) when the operator is set to the rightmost side (sign member side), and when the operator is set to the leftmost position (symbol member side) side), the minimum (O
bolt). And for this ^XP1, conversion 41
The sound image localization data output by 11 is “111 J-2~”
The data has eight values of ``000'' and is written into the performance memory 5.

The localization data is applied to the latch 12 and latched, and then sent to the l/At converter 13KIEI/Jl and converted into an analog signal. And the analog signal is the auto 111III of the switch F14 provided on the keyboard.
It is applied to the Confucian contact point Mu. On the other hand, the output of the sound image localization setting switch 9 is applied to a contact MKFi on the manual control side of the changeover switch 14. and changeover switch 14
The sound image localization voltage taken out from the contact point M and the control contact y is directly applied as a voltage control temperature increase @If-IKIII control voltage, and is also applied as a control voltage to the voltage control type tank l111g-1 via the inversion increaser l11111$. As shown in the diagram, the positive input terminal (+) of the applied 0-inverted amplified sound 15Fi
The sound image localization voltage is applied to the negative input terminal (to) which is grounded via a resistor R1. 1 Also, Kti resistance 12, between the above negative input terminal ← and the output terminal! A voltage obtained by dividing the voltage of -VS voltage is applied by L).

As a result, the sound image localization voltages applied to the voltage control amplifiers 496-1 and 6-2 are in opposite phases to each other (that is, inverted control data are applied to each other), and the state is 1.
1ti@41i1.

If the sound image localization voltage is clogged, the sound image localization voltage output from the changeover switch 14 is the maximum and 1 (corresponds to the state where the sound image localization voltage switch 9 is set to the rightmost position and data "111" is output from the A/D converter 11). Voltage controlled amplifier 6-1 (VO
The amplification factor of the voltage-controlled amplifier 6-2 (VO^0) becomes the maximum, and the amplification factor of the voltage-controlled amplifier 6-2 (VO^0) becomes the minimum, and all sound image localization is set to the right speaker 8-1. Become.

On the other hand, when the sound image localization voltage output from the changeover switch 14 is small (corresponding to the state where the sound image localization setting switch 9 is set to the leftmost position and the data [000J is output from the Mu/D converter 11). The amplification factor of the voltage-controlled amplifier 6-1 is the minimum, and therefore the voltage-controlled amplifier 6-20
The IjA line becomes the maximum, and as a result, the sound image localization is all set to the left speaker 8-2. Furthermore,
When the changeover switch 14 is set to the midpoint, it is obvious from the above that the voltage controlled amplifiers 6-1, 6-
2 are equal, and the sound image localization is set equally to the midpoint, that is, the right speaker 8-1 and the left speaker 8-2. As described above, during manual control, the setting state 111 of the sound image localization setting switch 9 is
The sound image localization of that channel is controlled in accordance with the sound image localization data read out from the #1 performance memory 5 during automatic control.

Next, the operation of the above embodiment will be explained. First, desired sound image localization data and musical tone information of a predetermined melody are written into the performance memory 5 of each channel, respectively. In this case, first, by operating a predetermined switch on the keyboard 1, for example, a whip channel is specified, Also, the write mode for the performance memory 5 is set. After the break K, the automatic performance control section 10 performs control for data writing operations. The performance memory 5 has now been designated with a leading address.

Also, for the whip channel, if the sound image localization setting switch 9 is set to the leftmost position, the output will be 0 volts,
Therefore, the sound image localization data output from the M/D converter 11 becomes [oooJ, and is written to the top address of the performance memory 5. The state is shown in the performance memory 5 of the whip channel (muoh) on the island.

Next, musical tone information of a predetermined melody is sequentially inputted by operating keys on the keyboard 1 or the like. In this case, a pair of pitch and length data specified by the key operation is written sequentially from the area of the performance memory 5 at the next address after the first address. In the example shown in Figure 5, the following data is written: "First, pitch 0□, quarter note, then pitch D 18th note, then pitch 11.4 note, etc." .

When the convolution for the whip channel is completed as described above, next, specify the B channel (Bah) and write sound image localization data and musical sound information in the same way, and then write the C channel (C!oki,) and D channel. (Dam) is written in the same way. As a result, in the example of FIG.
Sound image localization data [111J, [ollJ, and "111O"] are written at the top address of each performance memory 5 of the channel, respectively. Note that illustration of musical tone information is omitted.

After the write operation for each channel is completed as described above, each channel can be played manually by operating the keys on the keyboard 1 or automatically played by the tone information in the performance menu 5. For example, now,
If automatic performance is to be performed for each channel, the changeover switch 14 for each channel is set to the automatic control side contact point. Then, when the automatic performance start switch of all channels is turned on, the reading operation of data from the performance memory 5 of each channel is started. In the much channel channel, first, sound image localization data l"oooJ is read from the leading address, latched by the latch 12, and applied to the 11/A converter 13. Therefore, O volts from the D/mu converter 13 A voltage signal is outputted and applied to the changeover switch 14, and as a result, the voltage controlled amplifier 6-1 is applied with a voltage of 0pol (OQ), while the voltage controlled amplifier 416-IK is inverted. amplifier 1
5, a sound image localization voltage that is inverted to +V volts is applied. Therefore, from now on, the voltage-controlled amplifier 6-1 amplifies the musical tone signal from the musical tone generator with the maximum amplification factor and outputs it as the signal R1, while the voltage-controlled amplifier 6-2 amplifies the musical tone signal from the musical tone generator 6-2 with a small amplification factor (IIi). That is, the signal L1 is amplified by "0").
It will be output as . That is, signals R1 and Ll
The ratio is 0:7.

Since the pitch localization data If-to-xJ is read out from the performance memory 5 in the b channel, the voltage-controlled amplification 416 is set to the voltage-controlled amplification factor 11 with an amplification rate that is completely opposite to that in the case of the fifth channel.
1.6-2 are set respectively. That is, the signals Rz, L
The ratio of z is 7:0. Since the sound image localization data "011" is read out in the t0 channel, the ratio of the amplification factors set to the voltage-controlled amplifiers 6-1 and 6-2, respectively, is
That is, the ratio of the signal R1 to the signal R1 is 3:4. Sara KD
In the channel, since the sound image localization data "100" is read out, the amplification factor 0 ratio set for each voltage-controlled amplifier 6-1 and 6-2, that is, the ratio of signals RJ4 and L4 is 4.
Become the opposite. Figure 6 schematically shows the settings for sound image localization in each of the channels described above.

When the sound image localization data is simultaneously read out from the performance memory 5 of each channel as described above, the first data of the collected sound information is then read out from the performance memory S of each channel. In the Mudelenel, first, pitch C8 and quarter note data are read out and given to the tone generating section 3. The sound collection generating section 3 creates a musical tone based on the above data using the tone specified by the tone color specifying switch 40, and applies an anamig amount of musical tone signal to the voltage controlled amplification 1115-1.6-IK. The voltage-controlled amplifiers 6-1 and 6- amplify the musical tone signal according to the input condition 11 of the sound image localization voltage, and the signal 1. % Ll output, mixer amplifier 7-1.7
-2 to each terminal "1".

It is exactly the same for channel 1, channel 0, and channel D. Musical tones are created for the first data of musical tone information, respectively, and 7 to O signals R8, L8, ) to 4 signals *s, LH% 4 pairs] of signals R4L4 are output to each terminal ``2'' and ``5'' of the built-in
”, “4”.

Therefore, Zuzu Kisa Amp 7-1, 7-! Now, after mixing each input signal, it is amplified and sent to the right speaker 8-
1. Sound is emitted from each of the left speakers 8-2. In other words, performance memos are sent from speakers 8-1 and 8-2! The collected sound of each channel is emitted with a foreshadowing of the sound image localization according to the sound image localization data set in 75, respectively. and#! The same is true for two or less notes.

On the other hand, when the automatic performance is being executed on each channel as described above, for example, when it is desired to change the sound image localization of the whip channel, the changeover switch 14 is switched to the contact M on the manual control side.

Then, when the sound image localization setting switch 9 is set to a desired position, its output is applied as a new sound image localization voltage to the voltage-controlled amplifiers 6-1 and 6-2 through the changeover switch 13, respectively, and the sound localization of the whip channel is performed. The status is changed.

In addition, when performing manual performance by operating the keys on the keyboard 1 and the automatic performance described above at the same time, for example, use the whip channel for manual performance, and for that purpose, switch the changeover switch 14 to the contact M for manual control, and set the sound image localization. Set switch 9 to the desired position. So 0~
Turn on the automatic performance start switch for channel 1, and start manual performance from the keyboard IK. Then, by manual performance, the pitch data output from the key 1 is applied to the A channel O wave generation section 3 via the contour path line B. Of course, in case c, data reading from the performance memory 5 is prohibited in the whip channel. And 8% 0°DO data 1 from welfare performance memory 5 on each channel! asL is deepened. As a result,
In the whip channel, a musical tone corresponding to the manual performance is created from the electric sound generation lI3, and a ratio of 1) R, % L, according to the sound image localization set in 1N is output. In addition, in each channel of B and Old, signal 1 is generated by automatic performance.
g, LHs RB, LH, R4, 114 output, and the synthesized sound of each channel is emitted from the speaker 8-1.8-2.

In the above embodiment, the sound image localization data is expressed as 3-bit data and has 8 stages, but of course the number is not limited to this. It is not limited to , but is optional. In addition to the types of automatic performance that sequentially read collected sound information such as pitch, pitch, and length, and play one after another, there are also arpeggios that read chord information every 172 measures and perform automatic performances. This includes so-called "one-key play" performances in which the performance is performed based on the above-mentioned chord information, and in which scale information is read out each time a predetermined key is operated and the note length is determined based on the operation time of the predetermined key. Of course, various applications and modifications are possible.

As explained above, the present invention is an electronic musical instrument that has a plurality of musical sound generation systems, each of which simultaneously generates and emits different performance sounds, and in which a sound is generated individually for each of the plurality of performance sounds that are simultaneously generated. Since we have provided an electronic musical instrument with configurable localization information, it is possible to obtain a stereo effect of much higher quality than before, and the setting operation is also easy, making it possible to take on a wide variety of performance forms. ÷Aio

[Brief explanation of drawings]

FIG. 1 is a circuit configuration diagram of an embodiment of the present invention, FIG. 2 is a diagram showing the relationship between music localization data and music localization voltage, and FIG. 3 is a diagram showing the operation O setting of the music localization setting switch 9. A diagram showing the relationship between position and sound localization voltage, Figure 4.
-1 (Tom (6)) and 6-2 ('VOm (υ)) A diagram showing the relationship between the music localization voltage applied to (υ) and each amplification factor. Figure 116 is a diagram showing an example of the mnemonic line of message 5, and Figure 116 is a diagram showing the pitch localization setting state of each musical tone generation circuit system. 1...Keyboard, 2-1 to 2-4・・・・・・
・Musical sound generation - tying, 3...Toon creation department, 4...
...Tone designation switch, S...Performance memory, 6-1, 6-4...Kame n2 control amplification sound, 7
-1,? -1...Mixer amplifier, 8-1, ll
-2...Speaker, 9...Music localization setting switch, 10...Automatic performance control section, 11.
...Direct/13 converter, 12...Latch,
13...Vml! m81, 14... Changeover switch, 15... Inverting amplifier. Figure 2 Figure 3 Figure 4 Figure 6 Figure 5

Claims (1)

[Claims] A sound image localization information setting means for individually setting sound image localization information for the performance sounds of each group, in an electronic musical instrument having a plurality of sound collection and generation systems, each of which generates and emits different performance sounds at the same time; 1. An electronic musical instrument comprising: control means for controlling sound image localization for performance sounds of each group based on sound image localization information set for each group by localization information setting means.