JPH04349497A - Electronic musical instrument - Google Patents

Abstract

PURPOSE:To offer the electronic musical instrument capable of complex-tone performance which processes a voice as a musical sound. CONSTITUTION:This electronic musical instrument is equipped with a pitch specification information input means 21, a formant information storage means 15 storing time-series information on plural formants featuring the pronunciation of a human voice, syllable by syllable, a syllable specification information input means 17, a read means 11 which reads formant information on a syllable specified with syllable specification information inputted from the syllable specification information input means out of the formant information storage means and starts reading it in synchronism with the input of the pitch specification information from the pitch specification information input means, and a formant generating sound source 31 which generates formants based upon the sequential formant information read by the read means and the pitch specification information inputted from the pitch specification information input means 1 by as many as the syllables.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic musical instrument that plays human voiced lyrics as musical tones, and more particularly to an electronic musical instrument that is capable of playing multiple tones using a human voice.

0002

[Prior Art] Japanese Patent Publication No. 59-8838 discloses an electronic musical instrument capable of producing a human voice by providing musical tone formation information, in which lyrics pre-stored in the memory of the electronic musical instrument are reproduced in response to key presses. An electronic musical instrument has been disclosed that allows a human voice of the electronic musical instrument to play lyrics by reading out lyrics and producing sounds at the pitches of the pressed keys.

By the way, in current electronic musical instruments, simultaneous generation of a plurality of musical tones, that is, performance using multiple tones is mainstream. However, with the electronic musical instrument disclosed in the above-mentioned publication, it was not possible to simultaneously generate a plurality of human voices, that is, to play a voice chorus or the like.

0004

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems in the prior art, and it is an object of the present invention to provide an electronic musical instrument that is capable of performing multiple tones using voice as musical tones.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the electronic musical instrument of the present invention includes pitch designation information input means,
Formant information storage means storing time-series information of each of a plurality of formants characterizing the pronunciation of each syllable of human voice sounds, syllable designation information input means, and syllable designation inputted from the syllable designation information input means. reading means for sequentially reading out formant information of syllables designated by the information from the formant information storage means and starting the reading in synchronization with input of pitch designation information from the pitch designation information input means; and the reading means and a formant forming sound source capable of simultaneously forming a plurality of syllables of formants based on the sequential formant information read out and the pitch designation information inputted from the pitch designation information input means.

[0006] In one aspect of the present invention, the invention further includes performance operation information input means for inputting performance operation information other than the pitch designation information, and the reading means reads formant information from the formant information storage means. The present invention is characterized in that the actual readout point is changed in accordance with the performance operation information.

Pitch specification information input means include a keyboard, a MIDI interface, and a card, tape, disk, and RO that can read out melody information.
A musical score memory such as M and RAM can be used.

The syllable designation information input means includes a group of syllable designation switches such as a keyboard of a word processor, etc.
Alternatively, a memory means from which syllable information such as lyrics can be read can be used.

As a formant forming sound source, a formant sound synthesis device disclosed by the present applicant in Japanese Patent Laid-Open No. 2-262698 can be used.

The performance operation information input means includes a key velocity detection means, a modulation wheel, and performance operators such as pedals.

[0011]

[Operation] Speech produced by humans (human voice sounds) is composed of a plurality of formants, and each of these formants changes over time.

According to the present invention, each syllable (50
Time series information (formant trajectory) of each of a plurality of formants characterizing each sound (voice, each voiced sound, semi-voiced sound, etc.) is stored, and is read out based on syllable designation information and supplied to a formant forming sound source. The formant forming sound source generates human voice sounds characterized by the plurality of formants according to formant information sequentially supplied, for example, formant frequency and formant level information, and pitch specification information supplied from the pitch specification information input means. form. Thereby, it is possible to synthesize the human voice sound of the pitch specified by the pitch specification information input means. Further, the formant forming sound source simultaneously generates a plurality of human voice sounds of the specified pitches.

[0013]

[Effect] Therefore, according to the electronic musical instrument of the present invention, it is possible to realize multitone performance (chorus) by voice.

For example, by giving the same musical sound formation information (formant information) to a plurality of pressed keys that are pressed almost at the same time, multiple musical tones (human voice sounds) can be produced at multiple pitches of the same syllable. be able to.

Furthermore, by changing the readout point when reading formant information from the formant information storage means 2 based on performance operator information such as key velocity and modulation wheel, more dynamic timbre changes can be realized. .

[0016]

Embodiments Hereinafter, embodiments of the present invention will be explained with reference to the drawings.

FIG. 1 shows the hardware configuration of an electronic musical instrument according to an embodiment of the present invention. The electronic musical instrument in the same figure is 16
It uses a formant synthesis type sound source with polyphonic pronunciation, and one musical tone (voice) is formed using eight parameters consisting of four formant frequencies and four formant levels.

Speech produced by humans (human voice) is mainly formed from four characteristic formants, so if you are at a level where you can recognize that it is simply the pronunciation of "a", you can distinguish these four formants. It is sufficient to give only the eight specified parameters to the sound source and make it produce sound. However, in reality, formants vary minutely over time, and they alone cannot express the fine nuances of speech, nor can they express speech containing consonants. Here, a plurality of eight parameters representing moment-by-moment voice data are prepared in chronological order in a memory circuit for each syllable, and are read out each time a key is turned on. This makes it possible to synthesize sounds such as "gaa".

[0019] Furthermore, determination of whether or not a plurality of keys have been pressed is made as follows. 1. If a new key is pressed after no key has been pressed, the musical tone formation information read pointer (AD) is incremented by one and the counter is reset. 2. If the next key press is within the time counted by the counter, the pointer will not advance. 3. If a key press comes after the counter has finished counting,
This is regarded as a new key press and processing 1 is performed.

The electronic musical instrument shown in FIG. 1 has a central processing unit (CPU).
) 11 to control its overall operation, and the CPU 11 is connected to a read-only memory (ROM) 15, a RAM 17, and a sound source 31 via a bidirectional bus line 13. The bus line 13 further includes a keyboard interface 19, an operation panel interface 23, and an operator interface 27, respectively.
A keyboard circuit 21, an operation panel switch group 25, and an operator 29 are connected through the keyboard circuit 21, an operation panel switch group 25, and an operator 29. A speaker 35 is connected to the sound source 31 via a sound system 33 consisting of a D/A converter, an amplifier, etc. (not shown).

The ROM 15 stores a control program for controlling the operation of the CPU and a sequence table for syllable data. FIG. 2 shows a sequence table for syllable data and lyric data, which will be described later. The sequence table for syllable data is created using a frequency sequencer (F-SE
It consists of a level sequencer (L-SEQ) and a level sequencer (L-SEQ), which calculates the frequencies F1 to F4 and levels (amplitudes) of the four main formants that characterize each syllable (50 sounds, each voiced sound, semi-voiced sound, etc.) of the human voice. ) L1 to L4 are stored in chronological order.

The RAM 17 includes a work area in which registers, flags, etc. are set for temporarily storing various data generated when the CPU 11 executes the control program, and a lyrics data sequence as shown in FIG. A sequence area in which a table (seq) is set is provided. In addition, the sequence table for lyrics data (
In addition to RAM, the seq) can also be configured with various cards, tapes, or disks, and a reader that reads data from them.

The keyboard circuit 21 includes one or more key switches corresponding to each key on the keyboard, and detects the operating state of each key switch to determine whether each key is pressed or not.
Generates key information indicating key release, key touch (initial touch, aftertouch, etc.), etc.

The operation panel switch group 25 includes various panel switches arranged on the panel surface of this electronic musical instrument, and generates switch information representing the on/off or setting status of each switch on the panel surface. The panel switches include a power switch, tone selection switch, volume setting switch, and the like.

The operators 29 are composed of pedals and the like, and generate operation information indicating the operation status of each pedal.

The sound source 31 uses a formant synthesis type sound source disclosed in Japanese Patent Application Laid-Open No. 2-262698, and is output from the CPU 11 in response to inputs from the keyboard circuit 21, the operation panel switch group 25, and the operator 29. Based on the musical tone formation information provided, musical tone (voice) waveform data for a maximum of 16 tones is formed by time-sharing processing. This sound source 31 modulates the amplitude of a first repetitive waveform (modulated wave) with a second repetitive waveform (modulated wave), and the frequency of the first formant is mainly determined by the level and the repetitive frequency of the modulated wave. The shape of the envelope is mainly determined by the waveform of the modulated wave. Further, the frequencies of the second and subsequent formants and their relative levels with respect to the first formant are mainly determined by the waveform of the modulated wave. Furthermore, the pitch of a musical tone is determined mainly by the repetition frequency of the modulated wave.

[0027] The sound system 33 performs D/A conversion of these musical sound waveform data and also acoustically mixes them to generate a musical tone signal consisting of a maximum of 16 sounds. This musical tone signal is emitted as sound through the speaker 35.

Next, the operation of the electronic musical instrument shown in FIG. 1 will be explained with reference to the flowcharts shown in FIGS. 3 to 8.

Referring to FIG. 3, CPU 11 first executes initialization in step 301. In this initialization, the sequence step register step is set in the RAM 17 and used as a pointer for reading out the lyrics sequence, and the pointer step is set in the RAM 17 and used as a pointer for reading out the lyrics sequence, and the pointer step is set in the RAM 17 and used as a pointer for reading out the lyric sequence. Clear each register and flag, such as the elapsed time counter count used to prohibit the advancement of the pedal, the pedal flag pedal indicating the current status of the pedal, and the TIME (ch) prepared for each tone forming channel. Initial settings such as setting a predetermined preset value are performed, and initial settings of the sound source 31 and other peripheral circuits are performed. Next, step 303~
319 to scan each interface,
If an event exists, the program proceeds to a routine that processes the event. The sequence reading process in step 321 is as follows:
A set of formant data (4
This is a process for sequentially providing a sequence of four formant frequency data and four formant level data to the sound source 31. The processing of steps 303 to 321 is repeated in a loop.

The loop processing of steps 303 to 321 in the main processing routine will be explained in more detail below.

[0031] In step 303, a key scan is executed. That is, the keyboard interface 19 is accessed to check the operation status of the keys on the keyboard. Step 30
In step 5, it is determined whether or not there has been a change (key event) in any key based on the result of the key scan in step 303. If there is a key event, the sound generation process in step 307 (FIG. 4) is executed, and if there is no key event, the process proceeds directly from step 305 to step 309.

In step 309, a panel scan is executed. That is, the operating state of the operation panel switch group 25 is inspected. In step 311, it is determined whether there has been a change (panel event) in any of the operation panel switches based on the result of the panel scan in step 309. If there is a panel event, panel processing (not shown) in step 313 is executed, and if there is no panel event, the process proceeds directly from step 311 to step 315.

In step 315, a controller scan is executed. That is, the operating state of the operator group 29 is inspected. In step 317, based on the result of the operator scan in step 315, it is determined whether there has been a change in the operating state of any operator (operator event). If there is a manipulator event, the manipulator processing in step 319 (FIG. 5) is executed; on the other hand, if there is no manipulator event, step 31 is executed.
7 directly proceeds to step 321.

In step 321, the sequence read process (FIG. 8) is executed, and then the process returns to step 303.

FIG. 4 shows a flowchart of the sound generation processing routine. If it is determined in step 305 of the main processing routine that there is a key event, the CPU 11 executes this sound generation processing routine.

Referring to FIG. 4, CPU 11 first determines in step 401 whether or not the key event is a key-on event. If it is a key-on event, a read address setting process (FIG. 6), which will be described later, is executed in step 403 in order to obtain the read start address of the sequence memory. Thereafter, in step 405, a search is made for an empty channel, and in step 407, it is determined whether there is an empty channel. If there is no free channel, truncation processing is performed in step 409 to forcibly create a free channel. In step 411, the empty channel c searched in step 405 or forcibly created in step 409
Key-on information KON indicating that the key is currently on is written to h. Thereafter, in step 413, the address set in the read address setting process of step 403 is written into the array register AD(ch) that stores the read address of each channel. Furthermore, in step 415, the last key register last-k
The key code KC of the turned-on key is written in ey, and in step 417 a start pulse is sent to the envelope generator EG corresponding to the channel to start outputting the EG, and then the process proceeds to step 309 of the main processing routine. Return processing.

If the determination in step 401 is "NO", that is, if the key event in step 305 is a key-off event, first, in step 421, it is determined whether or not there is a key-on key corresponding to this key-off key. This is because even if the performer is key-on, the musical tone may be forcibly dumped due to the above-mentioned truncate process or the like. Therefore, if the corresponding key-on key does not exist, this sound generation process is immediately finished and the process returns to step 309 of the main process routine. On the other hand, if a corresponding key-on key exists, step 42
3, sends key-off information KOFF to the channel,
At step 425, the key-on information KON of the channel is
After erasing the sound generation process, the process returns to step 309 of the main process routine.

FIG. 5 shows a flowchart of the operator processing routine. If it is determined in step 317 of the main processing routine that there is a manipulator event, the CPU 11 executes this manipulator processing routine.

Referring to FIG. 5, CPU 11 determines in step 501 whether or not the operator event is a pedal-on event caused by depressing a pedal. If it is not a pedal-on event, then in step 503 it is determined whether the operator event is a pedal-off event caused by releasing the pedal. If it is either a pedal-on event or a pedal-off event, the pedal flag "pedal" is inverted in step 505 each time the event occurs. As a result, information on the current pedal is obtained in the pedal flag pedal. On the other hand, for an operator event that is neither a pedal-on event nor a pedal-off event, processing corresponding to the operator where the event occurred is performed in other operator processing in step 507. When the process of step 505 or 507 is completed, the process returns to step 321 of the main process routine.

FIG. 6 shows a flowchart of the read address setting routine executed in step 403 of the sound generation processing routine of FIG.

Referring to FIG. 6, the CPU 11 performs step 6.
At step 01, the pedal flag pedal is checked. This pedal flag "pedal" is set to represent the current pedal information by the process of step 505 (FIG. 5).

In the judgment at step 601, if the pedal flag pedal is "1", that is, the pedal is depressed, then at step 621 the lyrics sequence seq
(Fig. 2) read address AD with the previously pressed key la
The same read address AD (last-
key), the process proceeds to step 405 in FIG.
Return to That is, the electronic musical instrument shown in FIG. 1 continues to produce the same syllable without advancing the lyrics even if a new key is pressed (key-on) when the pedal is depressed.

On the other hand, if it is determined in step 601 that the pedal flag pedal is "0", that is, the pedal is not depressed, it is determined in step 603 whether or not the count value of the elapsed time counter "count" is greater than "0". do. Each time a new key is pressed, a value corresponding to the cycle of the interrupt counter, that is, the tempo of the song, is set in step 611, which will be described later, and it is decremented by 1 each time the interrupt processing, which will be described later, is executed. (See step 705 in FIG. 7) The counter stores information on the elapsed time from the new key press.

In the determination at step 603, the counter c
If the count value of ount is "0", the lyrics sequence read pointer step for reading the lyrics sequence table seq of FIG. 2 is incremented. That is, when the counter count counts a predetermined time,
Advance the lyrics to the next syllable.

In the following step 607, the pointer step
Inspect the value of . If the value of the pointer step exceeds the final address seq-max of the lyrics sequence table seq, the pointer step is cleared in step 609. As a result, the pointer step points to the first address of the lyrics sequence table seq, and the lyrics are read out again from the beginning. For example, if each syllable of "Hallelujah" is stored in the sequence table seq, each time a key is pressed four times, the musical tones (lyrics) are repeated as "Hallelujah" and "Hallelujah."

In the determination at step 607, the pointer s
The value of tep is the final address se of the lyrics sequence table
If it is less than q-max, the process of step 609 is skipped and the process directly proceeds from step 607 to step 611. In step 611, as mentioned above,
A counter count is set according to the interrupt interval time which is the cycle of the interrupt counter, and then the process proceeds to step 613.

In the determination at step 603, if the count value of the counter count is greater than 0, this indicates that the time since the new key press is within the predetermined time. In this case, steps 605 to 611 are skipped and the process proceeds directly from step 603 to step 613. That is, as a new key press, the step 61
The key pressed before the predetermined time stored in step 1 is counted by the counter count is the same syllable as the new pressed key,
It is used as musical tone formation data of different pitches, and multitone performance by voice is realized.

In step 613, the read address AD
The pointer step of the lyrics sequence table seq
After setting the data seq (step) at the position indicated by , that is, the start address of syllable data indicating one sound of the lyrics, the process returns to step 405 in FIG. 4 .

FIG. 7 shows the counter c used in FIG.
An interrupt handling routine for automatically incrementing ount is shown.

Referring to FIG. 7, CPU 11 is supplied with an interrupt clock of a predetermined period from a timer (not shown), and executes this interrupt processing routine every time this clock is supplied. Here, in order to prevent multiplexing of interrupts, the first step of this interrupt processing routine (step 701) is
) and finally (step 707), interrupts are prohibited and enabled. In step 703, the counter c
The count value "count" is checked, and if the count value "count" is larger than 0, the count value "count" is decremented in the next step 705. In step 703, the count value cou
If it is determined that nt has already become 0, step 705 is skipped and the count value count is kept at 0.

FIG. 8 shows details of the sequence read routine executed in step 321 of FIG.

Referring to FIG. 8, since the electronic musical instrument of FIG. 1 has 16 musical tone forming channels, CPU 11 first sets "16" in general-purpose register i at step 801. In the following step 803, it is determined whether or not the i-th channel is key-on. If the i-th channel is key-on, then in step 805 the running counter value ctr is checked. Running counter value c
If tr is greater than or equal to TIME(i), which is the time information since the last time the formant sequence was changed, the syllable sequence read pointer AD(i) is advanced, but the formant sequence assigned to each syllable is If the number of sets is exceeded, the formant information of the next syllable in the syllable sequence will be read out, regardless of the lyrics, which is inconvenient. Therefore, the pointer AD(i) is checked in step 805, and if the value has reached the maximum value MAX of the pointer AD(i), the process of step 807 is skipped, and the pointer AD(i) is
The progress of (i) is stopped. On the other hand, if the value of pointer AD(i) is smaller than the maximum value MAX, pointer AD(i) is incremented at step 807. In step 805, the end point of data is managed by the number of data items, but the final data may be special data such as an end mark so that the end point can be determined. In this case, the data size for each syllable can be made variable.

Once the sequence read address AD(i) has been determined, each formant frequency F1 to F4 and fault level L1 are determined from the table based on the address value AD(i) in the next steps 811 and 813.
~L4 are read and sent to the sound source 31 in step 815. Furthermore, in step 817, elapsed time information TIME is determined according to the speed of the running counter.
After updating (i), the process advances to step 819.

As a result of the determination in step 803, if the i-th channel is not key-on, there is no need to process sequence information regarding that channel, so steps 805 to 817 are skipped and the process directly returns to step 803. The process advances to step 819.

[0055] Furthermore, as a result of the determination in step 805,
TIME(i) where the value ctr of the running counter is the time information since the last time the formant sequence was changed.
If the i-th channel is not exceeded, there is no need to change the sequence information for this i-th channel yet, so steps 807 to 817 are skipped and step 80 is performed.
5 directly proceeds to step 819.

In step 819, general-purpose register i is decremented, and in step 821, it is determined whether the value i of this register has become "0". The register value i is “
0'', this sequence readout process has been completed for all 16 channels, and the process returns to step 303 in FIG. On the other hand, the value i is “
If it is not "0", this means that there are still channels for which this sequence readout process has not been completed, so the process returns to step 803 and the processes of steps 803 to 819 are repeated.

In the above embodiment, when the sequence step register step reads the lyrics to the end,
I am trying to clear it, but this register step
The configuration may be configured such that it is forcibly cleared. In this way, when a step is advanced due to an incorrect performance, etc., it is possible to clear the step to the desired state.

[0058] Furthermore, if the key-on duration is less than a certain level, the step step may not be advanced to avoid minor mistouches or chattering from causing erroneous performance.

[0059] It is also possible to use other operators to switch between a plurality of sequences seq.

Different sequences may be read out by applying the key range division technique. In this case, performances such as round singing can be realized.

FIG. 9 shows the hardware configuration of an electronic musical instrument according to another embodiment of the present invention. In this figure, parts common or corresponding to those in FIG. 1 are designated by the same reference numerals.

The electronic musical instrument shown in FIG. 9 has a function of simulating a desired voice, and has a formant sequence table area consisting of a RAM having a formant sequence table area having the same format as the formant sequence table set in the ROM 15 shown in FIG. It is equipped with a sequencer 37, and an analyzer 39 and a display 41 for comparing the musical tones produced by the sound source 31 with a reference voice.

The analyzer 39 performs fast Fourier transform on PCM data such as voice input from the microphone and formant waveforms output from the sound source 31 to create spectrum information thereof, that is, data regarding formants (formant information).

The display 41 displays the spectrum of the voice and musical tone or the difference between these spectra.

The formant sequencer 37 records data related to formants obtained by analyzing speech, such as the center frequency of formants (formant frequency), level, and the ratio U/V between voiced sound U and unvoiced sound V, as time-series data. For example, data on the pronunciation of "Thai" is recorded in the formant sequencer 37 as shown in FIG.

In FIG. 10, (a) shows the formant frequencies F1 to F4, and (b) shows the formant level L1.
~L4, (c) is the ratio U/V of voiced to unvoiced sounds.

In the embodiment shown in FIG. 1, the data is read from the point at time 0 at the same time as the note-on, but in this embodiment, the start point that is read out at the same time as the note-on is changed depending on the velocity. There is.

For example, to convert velocity data (0 to 127) into a read point, a sensitivity parameter sense is provided, and read-point=
The calculation velocity-data×offset is performed. Here, if you want to increase the readout points the harder you press the key, set sense ≧ 0, and if you want to decrease the readout points the stronger you press the key, set sense ≧ 0.
Let e<0. However, in the latter case, read-point
Since t becomes negative, it is necessary to set an offset.

In FIG. 9, the formant sequence table in the ROM 15 is loaded into the formant sequencer 37 when used, and then read out as a table set by the manufacturer.

In order to change the readout point of the formant sequencer 37 depending on the key velocity,
For example, among the operations of the electronic musical instrument in FIG. 1, step 4 in FIG.
13 may be changed to step 413' in FIG. That is, in step 413' of FIG.
In step 6 of FIG. 6, the key velocity velocity is multiplied by the predetermined sensitivity parameter
The value obtained by adding the read address set in step 13 as an offset is added to the tone formation information read counter AD (
ch) as the read address read-point.

As described above, in the electronic musical instrument shown in FIG. 9, by changing the readout point of the formant sequencer 37 in accordance with the key velocity, it is possible to dynamically change the tone color in accordance with the velocity.

For example, suppose that the analysis data for pronouncing "Tai" is recorded in the formant sequencer 37.
If you change the readout point according to the velocity, when you play strongly, you will pronounce "Tai", but when you play weakly, the consonant information will be skipped and you will pronounce "Aye".

Furthermore, this can be effectively applied to the case where formant analysis data of musical instrument sounds is recorded in a formant sequencer. For example, by using velocity to skip the rising part of a wind instrument where the formants change drastically, you can create timbre changes without manipulating timbre parameters, such as a "boo" when played strongly and a "boo" when played weakly. Can be done.

Note that the electronic musical instrument shown in FIG. 9 can also be developed as follows.

For example, as shown in FIG. 12, a plurality of musical tones ("wah", "huh", etc.) are generated corresponding to each velocity range (0-24, 25-48, 100-127). "
The musical tone forming formant information of "Woo") is recorded in the formant sequencer 37, and the reading start address read
-point may be changed to select a memory number using velocity data.

That is, when the key is pressed with a velocity of 45, the memory number Mem-num3 is selected as the read start address read-point, and the formant sequencer 37 reads out the formant information for pronouncing "nah".

[0077] By doing this, it is possible to produce completely different sounds using the same timbre parameters, depending on the velocity data. In the above case, by gradually increasing the velocity, the pronunciation can be changed as follows: "waa" → "haa" → "naa" → "ah" → "woo".

In other words, when performing a backing chorus or the like using an electronic musical instrument (formant sound source), the sound pattern can be changed depending on the key velocity.

In the above description, instead of the key velocity, operator information of other operators such as a modulation wheel or a pedal may be used.

Other embodiments of this invention are as follows.

The present invention further includes performance operation information input means for inputting performance operation information other than the pitch designation information, and the reading means sets a read point when reading formant information from the formant information storage means to the performance operation information. 2. The electronic musical instrument according to claim 1, wherein the electronic musical instrument is changed according to.

[Brief explanation of the drawing]

FIG. 1 is a block circuit diagram showing the hardware configuration of an electronic musical instrument according to an embodiment of the present invention.

2 is a schematic format diagram of each sequence table in the electronic musical instrument of FIG. 1. FIG.

3 is a flowchart showing a main processing routine in the electronic musical instrument of FIG. 1. FIG.

4 is a flowchart showing a sound generation processing routine in the electronic musical instrument of FIG. 1. FIG.

5 is a flowchart showing a control processing routine in the electronic musical instrument of FIG. 1. FIG.

6 is a flowchart showing a read address setting processing routine in the electronic musical instrument of FIG. 1. FIG.

7 is a flowchart showing an interrupt processing routine in the electronic musical instrument of FIG. 1. FIG.

8 is a flowchart showing a sequence read processing routine in the electronic musical instrument of FIG. 1. FIG.

FIG. 9 is a block circuit diagram showing the hardware configuration of an electronic musical instrument according to another embodiment of the present invention.

10 is a graph showing an example of time series data stored in the formant sequencer 37. FIG.

11 is a flowchart showing a sound generation processing routine in the electronic musical instrument of FIG. 9. FIG.

12 is a diagram showing formant analysis data in a formant sequencer in a modified example of the electronic musical instrument shown in FIG. 9. FIG.

[Explanation of symbols]

11: Central processing unit (CPU), 15: ROM, 17:
RAM, 21: Keyboard, 31: Sound source.

Claims (1)

[Claims] 1. Pitch specification information input means, formant information storage means storing time series information of each of a plurality of formants characterizing the pronunciation of each syllable of a human voice sound, and syllable specification information input means. , the formant information of the syllable designated by the syllable designation information input from the syllable designation information input means is sequentially read out from the formant information storage means, and the start of this reading is controlled by the pitch designation information from the pitch designation information input means. Formant formation capable of simultaneously forming a plurality of syllables of formants based on reading means synchronized with input, sequential formant information read by the reading means, and pitch designation information input from the pitch designation information input means. An electronic musical instrument characterized by comprising a sound source.