JPH0130157B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electronic musical instrument that generates human voice sounds, and more particularly to an electronic musical instrument in which the phonology of the generated human voice sounds is switched in accordance with the touch of a key.

Recently, in electronic musical instruments, musical tones of human voices, that is, human voice sounds, have been produced in addition to various musical instrument sounds.

This type of electronic musical instrument has the desired phoneme “a” and “i”.
. . . etc., musical tones with fixed formant characteristics are formed and produced using various methods.

By the way, in such an electronic musical instrument, if a human voice with the same phoneme is repeatedly produced, it feels monotonous to the listener, and furthermore, the phoneme becomes difficult to understand while listening.

Therefore, it may be possible to switch the phonology of the human voice to be pronounced during the performance (in the middle of the song).
To do this, it is necessary to operate operators such as a phoneme selection switch each time, which has the disadvantage that the operation is cumbersome and undesirable for performance.

The present invention has been made in view of the above-mentioned drawbacks, and provides an electronic musical instrument that can automatically switch the phonology of human voice sounds without the need for troublesome switch operations to produce a wide variety of human voice sounds, thereby improving playability. The purpose is to

To this end, the present invention detects the key touch condition such as the depth of key press or the speed of the key press, and switches the phonology of the human voice sound to be produced based on the detection output of the key touch condition. It is something.

Hereinafter, the electronic musical instrument according to the present invention will be explained in detail using the drawings. Structure and operation description of this invention (1) Invention 1 (invention described in claim 1)
DESCRIPTION OF THE STRUCTURE OF EMBODIMENT FIG. 1 is a block diagram showing an embodiment of an electronic musical instrument according to the present invention. In this embodiment, musical tones of human voices are formed using a musical tone forming method based on harmonic synthesis. In the figure, reference numeral 1 is a key switch circuit provided in the keyboard section, which has a key switch corresponding to each key of the keyboard section. When a certain key is pressed, the corresponding key switch is activated, and its output line is It outputs key information KD of logic "1" and also outputs a key-on signal KON indicating that one of the keys has been pressed. 2 is a key touch detection circuit that detects key touch conditions such as key pressure, speed, or depth associated with a key press operation, and outputs this detection signal as key touch information Td according to the key depression pressure, speed, or depth; 3 is a memory that stores a frequency number R corresponding to the pitch of each key at each address, and this frequency number memory 3 is addressed by the key information KD of the key switch circuit 1, and from its output, A frequency number R corresponding to the pitch of is read out. 4 is a one-shot circuit that is triggered by the rising edge of the key-on signal KON and outputs a narrow one-shot pulse as the key-on pulse KONP; 5 is a clock oscillator that outputs a clock pulse tc of a constant period; 6 is a clock pulse tc divided by w (w: A counter 7 outputs the calculation interval timing signal tx (the total number of harmonics to be synthesized at each sample point), and 7 counts the clock pulse tc and calculates the order number n (n ₁ ~ modulus w that outputs n _w )
This counter can also be used as the counter 6. 8 is a harmonic component generating circuit that generates each harmonic component including the fundamental wave based on the frequency number R output from the frequency number memory 3, and is a harmonic component generating circuit that generates each harmonic component including the fundamental wave, and generates each harmonic component through the gate 8a every time the calculation interval timing signal tx is generated. A pitch section adder 8b that accumulates the input frequency numbers R and outputs a cumulative value qR (q=1, 2, 3...) that specifies the sample point at which the musical waveform amplitude should be calculated, and a clock pulse tc generation. The cumulative value qR input through the gate 8c is sequentially added for each time, and the cumulative value nqR (n=1, 2, 3...w) is obtained.
a harmonic section adder 8d that outputs as a signal indicating the phase of the n-th harmonic at each sample point.
Then, the cumulative value nqR is decoded by the memory address decoder 8e, and the decoded output determines the sample point corresponding to the cumulative value nqR among the amplitude values of each sample point of one cycle of the sine waveform stored at each address. It is provided with a sine function memory 8f whose amplitude value is read out as a sine amplitude value sinπ/w nqR of each harmonic. 9 is a frequency that indicates the frequency of each harmonic component corresponding to the pitch of the pressed key by multiplying the order number n output from the counter 7 and the frequency number R output from the frequency number memory 3 and using the multiplied value nR. A multiplier that outputs a signal nR,
The counter 7 constitutes a frequency signal generation circuit 10. Reference numeral 11 denotes an amplitude information generating circuit which outputs in parallel amplitude information Fn _R indicating the amplitude level of each formant frequency of a plurality of vowels based on the frequency signal nR, and in this embodiment, five types of vowels (a), Amplitude information for (i), (u), (e), (o) Fn _R (a), Fn _R (i), Fn _R (u), Fn _R (e), Fn _R
(o) is configured to output in parallel.
As shown in the detailed circuit in FIG. 2, this amplitude information generating circuit 11 generates a
5 amplitude information memories 11a corresponding to (o)
~11e, each of these memories 11a~1
In each address of 1e, the amplitude level of each formant frequency constituting each vowel is stored as a digital value, as shown in FIG. 3 as a representative formant characteristic for vowel (a). By being addressed by the frequency signal nR, the stored contents become amplitude information Fn _R
(a), Fn _R (i), Fn _R (u), Fn _R (e), Fn _R (o)
It is read as .

12 is a switching signal E indicating the pronunciation order of a plurality of vowels.
In this embodiment, when a plurality of vowels are successively pronounced one by one, the switching signal generating circuit outputs the following: As a switching signal, one that specifies the pronunciation of a new vowel and one that specifies the pronunciation of the vowel to be eliminated are simultaneously generated, and within the switching circuit 13 (described later), two types of vowels are selected based on desired crossfade information XF. The pronunciation changes smoothly. As this switching signal generation circuit 12, Invention 1
As shown in FIG. 4, as an example characterizing this, the pronunciation of vowels is sequentially switched each time the key depression depth exceeds a predetermined value, based on the key touch information Td corresponding to the key depression depth at the time of key depression. circuit is used.

In FIG. 4, 12h is the key touch detection circuit 2.
This is an OR gate that takes as input the most significant bit MSB and the next bit of the key touch information Td (digital data of multiple bits) corresponding to the key depression depth output from (Fig. 1). When you increase the key press depth, this OR gate 12h will appear each time.
A pulse is output from. 12i is or date 1
Triggered by a pulse output from 2h,
This one-shot circuit 12i is a one-shot circuit that outputs a one-shot pulse of a predetermined width.
The one-shot pulse outputted from the counter 12c is input as a count pulse to the quinary counter 12c. 1
2c is a quinary counter that counts the one-shot pulse after being reset by the key-on pulse KONP, and 12d decodes the count value of the quinary counter 12c and outputs the decoded output as switching signals _E1 to _E10 . A decoder 12g sends a reset signal to a crossfade information generating circuit 13o of a switching circuit 13, which will be described later, from the OR signal of the key-on pulse KONP and the one-shot pulse.
It is an OR gate that outputs as RS. in this case,
Switching signals E ₁ to _{E 10} output from decoder 12d
are E ₁ and E ₁₀ , E ₂ and E ₆ , E ₃ and E ₇ , E ₄ and E ₈ , E ₅ and E ₉
Although both are based on the same decoded output, different signal names are used to distinguish between the vowel to be newly pronounced and the previous vowel to be extinguished. For example, when vowel (i) is to be pronounced after vowel (a), after vowel (a) is pronounced by switching signal E ₁ , if switching signals E ₂ and E ₆ become logic "1" signals, The vowel (i) is designated as the vowel to be newly pronounced, and the vowel (a) is designated as the vowel to be extinguished.

When the switching signal generation circuit 12 is configured as described above, each time the depth of depression of the depressed key changes after the key is depressed, a one-shot pulse is output from the one-shot circuit 12i, and thereby the quinary counter 12c is Count up sequentially. As a result, the switching signal E output from the decoder 12d
(E ₁ to E ₁₀ ) is changed every time the key depression depth is changed, for example.
Changes from E ₁ to E ₂ . Therefore, when using the switching signal generating circuit 12 having this configuration, the pronunciation vowels change from vowel (a) to vowel (i), as shown in FIG. Furthermore, it changes to a vowel (u)...

₁₃ is _a switching signal E (E ₁
~ _E10 ) and outputs it as an amplitude coefficient _CnR (V) for each harmonic component output from the harmonic component generation circuit 8,
Figure 2 shows a detailed circuit diagram. In the same figure, 13
a is a selection circuit that selects in what combination five types of vowels are to be sequentially pronounced, and amplitude information Fn _R output in parallel from the amplitude information generation circuit 11;
(a) ~ Fn _R (o) are input in parallel, part 1
Five select switches 130a, 1 select one vowel and output it as selected vowel amplitude information _D1 to _D5 .
31a, 132a, 133a, and 134a. 13b to 13f are selected vowel amplitude information D ₁
AND gates 13h and 13h that pass through _D5 only when the corresponding switching signals _E1 to _E5 are input, and output the output as amplitude information DI of a vowel to be newly pronounced via an OR gate 13g; 1
3m allows the selected vowel amplitude information _D1 to _D5 to pass only when the corresponding switching signals _E6 to _E10 are input, and outputs the output as the amplitude information DD of the vowel to be extinguished via the OR gate 13n. It is an and gate, and these AND gates 13h~
13m is inhibited by the output of the flip-flop 13p when the first vowel is generated in response to a key depression.

13o converts amplitude information DI of a vowel to be newly pronounced and amplitude information DD of a vowel to be extinguished outputted from the OR gates 13g and 13n, respectively, into desired crossfade information XF (fade-in information
A cross-fade circuit for smoothly switching based on XFi, fade-out information XFo), and a fade-out information memory that stores fade-out information 1
31o, a fade-in information memory 132o that stores fade-in information XFi whose value increases sequentially as it approaches the terminal address as shown in FIG. a low frequency pulse oscillator 133o;
After being reset by the reset signal RS output from the switching signal generation circuit 12, the low frequency pulses inputted through the AND gate 134o are counted and the count output is sent to the fade-out information memory 131o and the fade-in information memory 132o. a counter 135o that outputs the address signal as an address signal, and a multiplier 1 that multiplies the fade-out information
36o, a multiplier 13 that multiplies the fade-in information XFi and the amplitude information DI of the vowel to be newly pronounced.
7o and amplitude information DI, DD to which fade-in and fade-out information is added in multipliers 136o and 137o, and the added output is used as the amplitude coefficient Cn _R for each harmonic component output from the harmonic component generation circuit 8. (V), and supplies an address signal to the fade-out information memory 131o and the fade-in information memory 132o.
5o outputs the maximum value output M (logic "1") indicating the maximum value of the count value, this maximum value output M
is inverted by inverter 139o, thereby disabling AND gate 134o. As a result, the counter 135o stops counting at the maximum count value, and starts counting again when the reset signal RS is input again from the switching signal generating circuit 12. In this case, the reset signal RS input from the switching signal generation circuit 12 is
This occurs each time a key press operation with a predetermined key press depth is performed, so the fade-out information XFo and fade-in information is read out, amplitude information DD, crossfade information to DI
XF will be awarded.

13p is set by the key-on pulse KONP, and its inverted output () is sent to the AND gate 13.
This is a flip-flop that outputs an inhibit signal from h to 13m, and, as mentioned above, prohibits the output of the amplitude information DD of the vowel that should be extinguished when the first vowel occurs due to a key press operation. . And this flip-flop 13p
is triggered when the first vowel occurs and the counter 135o of the crossfade circuit 13o outputs the maximum value M, and is reset by the output of the one-shot circuit 13q which outputs a one-shot pulse of a predetermined width. It is configured.

Next, returning to FIG. 1, 14 is an envelope waveform that outputs an envelope waveform signal ENV as shown in FIG. 7b when a key-on signal KON as shown in FIG. 7a is inputted with a key press operation. generator,
15 is the amplitude coefficient Cn _R output from the switching circuit 13
(V) by the envelope waveform signal ENV to give the amplitude coefficient Cn _R (V) a vibration envelope as shown in FIG. 7b; 16 is an amplitude coefficient C to which the amplitude envelope is given 'n _R (V)
is multiplied by the sine amplitude value sinπ/wnqR of each harmonic at each sample point output from the harmonic component generation circuit 8 to obtain the amplitude value of each harmonic Fn=C′n _R (V)・
A harmonic amplitude multiplier 17 outputs sinπ/wnqR, and a harmonic amplitude multiplier 17 sequentially accumulates the amplitude value Fn of each harmonic output from the harmonic amplitude multiplier 16 for each sample point (every time the calculation interval timing signal tx occurs). and its accumulated value _W 〓 ⁿ⁼¹ A musical tone signal generation circuit converts Fn into a corresponding analog signal and outputs the analog signal as a musical tone signal. 18 is based on the musical tone signal output from the musical tone signal generation circuit 17. This is a sound system that generates musical tones.

(2) Operation description of the embodiment of invention 1 In the electronic musical instrument configured as described above, the switching circuit 13 is used as a combination of vowels (a), (i), (u), (e), and (o) to be sounded. selection circuit 13a (second
Select switches 130a to 134 in Figure)
The operation when a is set will be explained.

First, when a key on the keyboard section is pressed under the above setting conditions, the key switch circuit 1 outputs the key information KD of logic "1" to the output line corresponding to the pressed key, and also outputs the key information KD of logic "1" to the output line corresponding to the pressed key. Outputs a key-on signal KON indicating that a key has been pressed. At this time,
The key touch detection circuit 2 detects the key depression pressure (or speed) of the pressed key, and outputs key touch information Td corresponding to the key depression pressure (speed). When the key switch circuit 1 outputs key information KD corresponding to the pressed key, the frequency number memory 3 is addressed by the key information KD, thereby reading out the frequency number R corresponding to the pitch of the pressed key. Also, when the key switch circuit 1 outputs the key-on signal KON, the one-shot circuit 4 outputs this key-on signal.
It is triggered by the rising edge of KON and outputs a narrow one-shot pulse as the key-on pulse KONP.

The frequency number R read out from the frequency number memory 3 is input to the harmonic component generation circuit 8,
As a result, the harmonic shaping generating circuit 8 outputs the sine amplitude value sinπ/wnqR of each harmonic (including the fundamental wave).

On the other hand, the counter 7 of the frequency signal generating circuit 10 counts the clock pulses tc, and supplies the count output to the multiplier 9 as the order number n. The multiplier 9 multiplies the frequency number R output from the frequency number memory 3 by the order number n output from the counter 7, and uses the multiplication value nR to calculate the frequency of each harmonic component corresponding to the pitch of the pressed key. output as a frequency signal nR shown. This frequency signal nR is the amplitude information memory 11a to 1 of the amplitude information generating circuit 11.
1e (FIG. 2) as an address signal,
As a result, the amplitude level of each formant frequency of the vowels (a) to (o) stored in the address corresponding to the frequency signal nR from each of the amplitude information memories 11a to 11e is changed to the amplitude information Fn _R (a) to
It is read out in parallel as Fn _R (o).

The amplitude information Fn _R (a) to Fn _R (o) read out in parallel from the amplitude information generating circuit 11 is input to the switching circuit 13, and the selection circuit 1 of this switching circuit 13
Select switches 130a to 13 correspond to the combination of pronunciation vowels set in advance in 3a.
4a are output as selected vowel amplitude information _D1 to _D5 , respectively.

On the other hand, the switching signal generation circuit 12 (FIG. 4) receives the key-on pulse output from the one-shot circuit 4.
After the 5-ary counter 12c is reset by KONP, the one-shot pulses from the one-shot circuit 12i are counted, and the count output (for example, "1") is decoded by the decoder 12d to generate the switching signal E (for example, E1 ₎ . ) is output. In this case, since the frequency signal nR changes at a high speed relative to the changing speed of the switching signal E, the amplitude information memory 11a collects amplitude information of each formant frequency constituting the vowel (a) while the switching signal E is _E1. Fn _R (a)
are repeatedly read out in sequence as Fn _R (a), F _2R (a), F _3R (a)...Fw _R (a). Amplitude information of each formant frequency of this vowel (a) Fn _R (a) (F _1R (a),
F _2R (a)...Fw _R (a)) passes through the AND gate 13b while the switching signal E indicates _E1 , passes through the OR gate 13g, becomes amplitude information DI, and is input to the crossfade circuit 13o. In the crossfade circuit 13o, the amplitude information DI is given XF as time passes, and the adder 138o outputs the amplitude coefficient Cn _R (V), that is, each output from the harmonic component generation circuit 8. The amplitude coefficients C 1R (V), C _2R (V), . . . CW _R (V) for the harmonic sine amplitude values sinπ/w1qR, sinπ/w2qR, . . . _sinπ /wwqR are output. Therefore, when the sine amplitude value sinπ/wnqR of each harmonic is multiplied by the amplitude coefficient Cn _R (V) of the corresponding frequency in the harmonic amplitude multiplier 16, each formant frequency constituting the vowel (a) is calculated. This means that the amplitude value Fn of the component is set. Therefore, the amplitude value Fn of each formant frequency component of the vowel (a) obtained in this way is sequentially accumulated in the musical tone signal generation circuit 17, and the accumulated value _W 〓 ⁿ⁼¹ After converting Fn into an analog signal, When supplied to the sound system 18, the sound system 18 produces a musical sound of the vowel (a). Vowel (a) by this sound system 18
The sound is continuously produced while the switching signal E indicates _E1 . Then, when the next key press operation is performed and the switching signal E changes from E ₁ to E ₂ , amplitude information Fn _R (i) (F _1R , F _2R ( i)...Fw _R (i)) passes through the AND gate 13c, passes through the OR gate 13g, becomes amplitude information DI, and is subjected to crossfade rotation 13.
o is input. _At the same time, the vowel ( _a ) is
Amplitude information of each formant frequency constituting Fn _R
(a) becomes the amplitude information DD of the vowel to be extinguished and is output from the OR gate 13n. These amplitude information DI corresponding to vowel (i) and amplitude information DD corresponding to vowel (a) are sent to the crossfade circuit 13.
o, the switching is performed smoothly under the control of fade-in information XFi and fade-out status information XFo, respectively. As a result, the amplitude information Fn _R (i), Fn _R (a) of each formant frequency constituting vowel (i) and vowel (a) is smoothly switched from the crossfade circuit 13o, and the amplitude coefficient Cn _R ( V) is output. Therefore,
During the time period in which this amplitude coefficient Cn _R (V) is smoothly switched, the amplitude levels of each formant frequency constituting the two vowels, vowel (i) and vowel (a), are output in duplicate. Therefore, the amplitude coefficient Cn _R in this time period
(V) is given an amplitude envelope by the envelope waveform signal ENV, and then multiplied by the sine amplitude value sinπ/wnqR of each corresponding harmonic to set the amplitude value Fn, and a musical tone signal is generated based on this amplitude value Fn. When this happens, the resulting musical tone becomes a diphthong of vowels (a) and (i). This operation is performed similarly for the vowels (i) and (u), (u) and (e), and (e) and (o), and the sound system 18 outputs the sounds shown in FIG. 5 types of vowels (a) ~
(o) is switched one by one each time a key is pressed,
Moreover, each changeover is performed smoothly and the sound is produced. In this case, when key operations of different pitches are performed successively, vowels (a) to (o) of different pitches are successively pronounced with each key operation. Therefore, select switch 1 in switching circuit 13
By appropriately selecting a vowel through 30a to 134a and operating the keys to a predetermined key depression depth, it is possible to hum or skit with diphthongs.

(3) Invention 2 (invention stated in claim 2)
A switching signal generation circuit 12 which is a part of the control means of
Description of another embodiment FIG. 8 is a circuit diagram showing still another embodiment of the switching signal generation circuit 12. Unlike the case of FIG. E
(E ₁ to E ₁₀ ) is changed.
In the figure, 12j is key touch information Td (multi-bit digital data) output from the key touch detection circuit 2 and corresponding to the key pressure or speed at the time of key depression.
decode and switch the decode output to signal E ₁
~E ₅ (signal used to select vowel information to be newly generated) decoder, 12k ~ 12o
is the key touch information output from the decoder 12j
This is a one-shot circuit that is triggered by each decode output of Td and outputs a one-shot pulse of a predetermined width.Each time a key is pressed, one of the one-shot circuits outputs a one-shot pulse corresponding to the key touch state. However, this one shot pulse has OR gate 12p and OR gate 12g.
The signal is then outputted as a reset signal RS of the crossfade circuit 13o in the switching circuit 13 (FIG. 2). 12q is a latch circuit that latches the decoded output of the decoder 12j by a signal obtained by delaying the output of the OR gate 12p by the delay circuit 12r; 12s;
is a latch circuit which latches the output of latch circuit 12q with the output of OR gate 12q, and the output of this latch circuit 12s is output as switching signals E ₆ to _{E 10} specifying the vowel to be extinguished. In the latch circuits 12q and 12s, the switching signals E ₁ to _{E 5} may jump and change, for example from E ₁ to E ₃ or from E ₂ to E ₅ , depending on the key touch state, so a new sound should be generated. When a vowel is specified by the switching signals E ₁ to E ₅ , the switching signals E ₁ to _{E 5} are sent to the latch circuit 12.
The switching signals E ₁ to _{E 5} are temporarily stored in the latch circuit 12s when the next key is pressed.
The latched contents are outputted as switching signals E ₆ to _{E 10} specifying the vowel to be deleted. Therefore, in this case, since the previous key touch information in successive key press operations is temporarily stored in the latch circuit 12s, by changing the key touch state, for example, the next key touch information after the vowel (a) Vowel (a) as in vowel (u)
You can freely pronounce ~(o) by touching the key.

(4) Invention 3 (invention stated in claim 3)
9 is a circuit diagram showing another embodiment of the switching signal generating circuit 12 and the switching circuit 13, which are control means for detecting a key touch. Five _constant memories _12M1 to _12M5 are stored at respective addresses as shown _in FIG. The selected vowel amplitude information _{D1 to D5} is switched directly by direct addressing and constants _P1 to _P5 output from the constant memories _12M1 to 12M5. In the same figure, 1
3v to 13z are constants P ₁ to P ₅ and selected vowel amplitude information
A multiplier that multiplies D ₁ to _{D 5} as a set, 1
3Σ is the multiplication value D ₁ ·P ₁ of the multipliers 13v to 13z,
This is an adder that adds D ₂ ·P ₂ , D ₃ ·P ₃ , D ₄ ·P ₄ , and D ₅ ·P ₅ and outputs the added value Σ as an amplitude coefficient Cn _R (V).

In such a configuration, the selected vowel amplitude information D ₁ to _{D 5} corresponds to vowels (a) to (o), respectively.
When the same key is pressed with different keys in order with increasing pressure, the memory contents of each constant memory 12M ₁ to 12M ₅ (P ₁ to _P5 ) are read out in sequence. As a result, the selected vowel information D ₁ to _{D 5} is controlled by the constants P ₁ to _{P 5} ,
They are added by an adder 13Σ and output as an amplitude coefficient _CnRV . As a result, the vowel (a) ~
(o) can be smoothly switched in order according to the key touch state, as shown by curves A to E in FIG. 11, respectively. Effects of the Invention As explained above, in the present invention, the phoneme of the human voice sound to be produced is switched depending on the touch state of the key when the key is pressed. Therefore, the phoneme of the human voice can be changed without a troublesome switch operation, a wide variety of human voices can be produced, and performance can be improved.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of an electronic musical instrument according to the present invention, FIG. 2 is a circuit diagram showing an example of the amplitude information generation circuit and switching circuit of FIG. 1, and FIG. 3 is a circuit diagram showing an example of the amplitude information generation circuit and switching circuit of FIG. A diagram showing an example of formant characteristics of a vowel stored in the amplitude information memory of the generation circuit, FIG. 4 is a circuit diagram showing an example of the switching signal generation circuit of FIG. 1, and FIG. Figure 6 is a diagram for explaining the operation of the signal generation circuit.
A diagram showing an example of crossfade information in the switching circuit shown in the figure, Figure 7 is an envelope signal ENV
A waveform diagram showing an example, FIG. 8 is a circuit diagram showing another embodiment of the switching signal generating circuit, FIG. 9 is a circuit diagram showing another embodiment of the switching signal generating circuit and the switching circuit, and FIG. 10 is a circuit diagram showing another embodiment of the switching signal generating circuit. FIG. 9 is a diagram showing an example of a waveform stored in the constant memory, and FIG. 11 is a diagram for explaining the operation of the circuit shown in FIG. 9. DESCRIPTION OF SYMBOLS 1... Key switch circuit, 2... Key touch detection circuit, 3... Frequency number memory, 8... Harmonic component generation circuit, 10... Frequency signal generation circuit, 1
DESCRIPTION OF SYMBOLS 1... Amplitude information generation circuit, 12... Switching signal generation circuit, 13... Switching circuit, 16... Harmonic amplitude multiplier, 17... Musical tone signal generation circuit.

Claims (1)

[Scope of Claims] 1. A keyboard device having a plurality of keys, a human vocal sound forming means for forming a human vocal sound of a predetermined phoneme in response to a pressed key of the keyboard device, and a key touch state of the pressed key. and a counting means that performs a counting operation each time the detection output of the key touch detection means exceeds a predetermined state, and according to the count content of the counting means, the human vocal sound forming means An electronic musical instrument is provided with a control means for switching and controlling the phoneme of a human vocal sound to be formed, and is configured to produce a human voice sound with a phoneme corresponding to a key touch state. 2. A keyboard device having a plurality of keys, a human vocal sound forming means for forming a human vocal sound having a predetermined phoneme in response to a pressed key of the keyboard device, and detecting the touch state of the pressed key and generating digital data. a key touch detection means for generating a detection output consisting of; and a decoder for decoding the detection output of the key touch detection means,
and control means for switching and controlling the phoneme of the human vocal sound formed by the human vocal sound forming means in accordance with the output of the decoder, and the electronic musical instrument is configured to produce a human voice sound with a phoneme corresponding to a key touch state. . 3. A keyboard device having a plurality of keys, a human vocal sound forming means for forming a plurality of human vocal tones corresponding to a plurality of predetermined phonemes corresponding to the pressed keys of the keyboard device, and a key touch state of the pressed keys. and a key touch detection means for detecting the key touch detection means, and generates a plurality of different constants corresponding to each of the phonemes based on the detection output of the key touch detection means, and generates a plurality of constants that are different from each other corresponding to each of the phonemes, An electronic musical instrument is provided with a control means for controlling the level by each of the above-mentioned constants, and is configured to emit a human voice with a phoneme corresponding to a key touch state.