JP4175744B2 - Electronic musical instruments - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electronic musical instrument, and more particularly to an electronic musical instrument that can be played by a legato playing method.
[0002]
[Prior art]
The legato playing technique is a playing technique in which the sound is played without causing a smooth break between the sounds. For example, in a keyboard-type electronic musical instrument, this legato playing method is a playing method in which a key is pressed while another key is pressed. When this legato playing method is performed, it is generated by the previous key pressing. In order to smoothly connect the musical tone to the musical tone generated by the subsequent key press, the sound generation mode at the break is controlled. In principle, in the control of the sound generation mode, the pitch of the first key press is changed to the pitch of the second key press, and the sounds are connected.
[0003]
[Problems to be solved by the invention]
Legato playing is performed on various types (tones) of musical instruments, but with conventional electronic musical instruments, when a legato playing is performed, a single sounding mode for legato playing is considered without regard to the tone. It controlled the generation of musical sounds.
[0004]
However, for example, when comparing the tone of an organ with the tone of a piano, the tone waveform of the organ tone is characterized by a sustained portion rather than an attack portion, and the sound waveform of the legato performance is as follows. Rather than replaying from the beginning of the sound, it is better to change the pitch to a height corresponding to the new key press while maintaining the previous musical sound waveform playback for the new key press. Connect smoothly and feel natural.
[0005]
On the other hand, the musical tone waveform of a piano is characterized by its attack, so the only way to pronounce legato is to change the pitch only in response to a new key press. It will feel unnatural.
[0006]
The present invention has been made in view of such problems, and an object of the present invention is to make it possible to perform a legato performance with a natural feeling for any timbre.
[0007]
[Means for Solving the Problems]
In order to achieve this object, the electronic musical instrument according to claim 1 is provided with a supply means for supplying note data for instructing to generate or stop a musical tone, and detection for detecting a legato performance from the note data supplied by the supply means. Means for storing a tone color sound waveform for a musical tone to be played, designation means for designating a tone color for a musical tone to be played, and obtaining means for acquiring a sound source waveform of a tone color designated by the designation means from the storage means And two or more types of legato pronunciation, each of which has a different pronunciation form other than the pitch. A selection means for selecting one corresponding to the tone color designated by the designation means from two or more types of legato pronunciation, and if the performance by the legato performance is not detected by the detection means, the note data supplied from the supply means Accordingly, a tone is generated in a manner other than the legato pronunciation mode, while a tone is generated in the legato pronunciation mode selected by the selection unit when a performance by the legato performance is detected by the detection unit. And means for determining whether the tone color designated by the designation means is a tone color that uses an attenuation sound when a performance by the legato performance is detected by the detection means, and selected by the selection means The legato pronunciation mode to be played is the first pronunciation mode for reproducing the tone waveform of the timbre acquired by the acquisition means from the beginning, From the position that follows the reproduction position of the tone waveform of the timbre that is sounded immediately before changing the tone waveform of the timbre that is sounded immediately before the legato performance is detected by the detection means, the acquisition means At least a continuous sound generation mode for reproducing the sound source waveform of the timbre acquired by the step is selected, and the selecting means determines that the timbre specified by the specifying means is a timbre that uses an attenuated sound. If the determination is made by the determination means that the timbre designated by the designation means is not a timbre that uses a decaying sound, the continuous pronunciation mode is selected. Is.
[0008]
3. An electronic musical instrument according to claim 2, comprising: supply means for supplying note data for instructing the tone generation or stop; detection means for detecting legato performance from the note data supplied by the supply means; Storage means for storing the sound source waveform, specification means for specifying the tone color of the musical tone to be played, acquisition means for acquiring the sound source waveform of the timbre specified by the specification means from the storage means, and a sounding manner other than the pitch There are two or more types of legato pronunciations, each of which has a selection means for selecting one of the two or more types of legato pronunciations according to the tone color designated by the designation means, and the performance by the legato performance by the detection means. If not detected, the sound generation mode is not the above-mentioned legato mode according to the note data supplied from the supply means. While a sound is produced, a musical sound generating means for producing a musical sound in a legato manner selected by the selection means when a performance by a legato performance is detected by the detection means, and a performance by a legato performance is produced by the detection means. A detection means for determining whether the tone color designated by the designation means is a tone color that uses a decaying sound when detected, and the legato pronunciation mode selected by the selection means is determined by the detection means. The tone generator waveform of the timbre acquired by the acquisition means using the second envelope shape formed more slowly than the first envelope shape used in the tone waveform of the timbre sounded immediately before the legato playing method is detected. A gentle-sounding pronunciation mode that gives an envelope shape to the sound and a sound just before a legato performance is detected by the detecting means. A continuous shape sounding mode for continuously providing the envelope shape to the sound source waveform of the timbre acquired by the acquisition means by continuously using the first envelope shape used for the sound source waveform of the timbre that is being provided, and The selecting means selects the gentle shape sounding mode when the determining means determines that the timbre specified by the specifying means is a timbre that uses a decaying sound, while the selecting means specifies the timbre specified by the specifying means. If the determination means determines that the timbre is not a timbre that uses a decaying sound, the continuation shape pronunciation mode is selected.
  According to a third aspect of the present invention, in the electronic musical instrument according to the first aspect, the legato sounding mode selected by the selecting means further includes a tone color that is sounded immediately before the legato playing technique is detected by the detecting means. Using a second envelope shape that is formed more slowly than the first envelope shape used for the sound source waveform of the sound source waveform, a gentle shape sounding mode for adding an envelope shape to the sound source waveform of the timbre acquired by the acquisition means, Continuing to give the envelope shape to the tone waveform of the timbre acquired by the acquisition means by continuously using the first envelope shape used for the tone waveform of the timbre sounded immediately before the legato performance is detected by the detection means. At least a shape pronunciation mode is provided, and the selection means reduces the timbre designated by the designation means. If it is determined by the determining means that the sound is a tone that uses a sound, the head sounding mode and the gentle shape sounding mode are selected, while the tone color specified by the specifying unit is not a tone color that uses a decaying sound. When judged by the judging means Is to select the continuous sounding mode and the continuous shape sounding mode.
[0009]
[Action]
When the timbre is specified for the musical sound to be played by the specifying means, the selecting means,fingerA legato sound generation mode corresponding to the tone color specified by the setting means is selected. Now, from the supply meansOrWhen the note data for instructing the stop is supplied, the detecting means detects whether or not there is a legato performance from the note data. Music generation means, InspectionWhen the playing means does not detect a performance based on legato, OfferingNote data supplied from the supply meansTheIf you play in a non-Ghat pronunciation mode and a performance based on legato is detected, SelectLegato pronunciation selected by selection methodInPlay the keyboard data.
[0010]
As a result, when a legato performance is performed, sounds can be smoothly connected in an optimal pronunciation manner according to the timbre, and a performance can be performed with a natural feeling.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 shows the overall configuration of an electronic musical instrument as an embodiment of the present invention. In this embodiment apparatus, when performing a legato performance, a sound is generated in a mono mode in which only one musical tone is generated at the same time.
[0012]
In FIG. 2, a CPU 1 is a central processing unit, and will be described later in ROM 2 and RAM.3To control the entire device.
[0013]
The ROM 2 is a read-only memory, and stores data such as programs executed in the CPU 1 and timbre parameters. For the timbre parameters, a waveform number and a legato mode are defined for each timbre. For example, when the timbre is “piano” and “organ”, the timbre parameters are as follows. Parameters that are not directly related to the operation of the present invention are omitted.
[0014]
[Tone parameters]
(piano)
Waveform number
"1"
Legato mode “1”
(organ)
Waveform number
“2”
Legato mode “2”
[0015]
The RAM 3 is a random access memory, is used as a working memory for the CPU 1, and is used as a register for storing data necessary for the operation of the CPU 1. For example, it is read and written according to the operation of the device as a register that stores data of the following variable names.
[0016]
[Current waveform data CWN]
Meaning: Holds the tone number of the currently selected tone.
Initial value: “1”
[Current legato mode CLM]
Meaning: Holds the legato mode of the currently selected tone. (Legato mode is a mode that determines how to pronounce when playing legato)
Initial value: “1”
[Current note number CNN]
Meaning: Holds the note number corresponding to the currently sounding tone.
Possible values: “−1”, “0” to “127” (where “−1” indicates that the key pressed last was released)
Initial value: “−1”
[0017]
The timbre selection device 4 is a device for selecting a timbre of a musical tone to be generated. When the timbre selected according to the player's operation is “piano”, the timbre selection information (1) is selected. When the timbre is “organ”, the timbre selection information is selected. (2) is output to CPU1.
[0018]
The keyboard device 5 generates note data in accordance with the key operation by the performer and supplies it to the CPU 1. The note data is key-pressed or released with note numbers (pitch information) of “0” to “127”. It consists of a key command.
[0019]
The waveform reproduction device 6 reproduces the waveform data (1) stored in the waveform memory 11 or the waveform data (2) stored in the waveform memory 12 in accordance with an instruction from the CPU 1, and outputs a sound source signal (sound source waveform) to the envelope generator 7. ). As described above, the waveform data (1) is the sound source waveform of the tone color of “Piano”, and the waveform data (2) is the sound source waveform of the tone color of “Organ”.
[0020]
Specifically, when the waveform reproduction start instruction (1) is given from the CPU 1, the waveform reproduction apparatus 6 starts reproduction of the waveform data (1) from the head and is given the waveform reproduction start instruction (2). Sometimes the reproduction of the waveform data (2) is started. When a waveform reproduction end instruction is given from the CPU 1, waveform reading is stopped and no sound source signal is output.
[0021]
Further, the waveform reproducing device 6 adjusts the reading speed of the waveform data in accordance with the note number input from the CPU 1, thereby reproducing the waveform with a pitch that matches the note number. When the waveform reproducing device 6 reproduces the waveform data up to the end thereof, the waveform reproducing device 6 returns to the middle position (loop point) set in each waveform data and repeats the reproduction of the waveform data.
[0022]
The envelope generator 7 gives an amplitude envelope having a shape instructed by the CPU 1 to the sound source signal (sound source waveform) input from the waveform reproducing device 6, and the resulting musical sound signal is converted to the D / A converter 8. Output to. Specifically, when the envelope start instruction (1) is given from the CPU 1, the envelope generator 7 gives the envelope shape (1) to the sound source signal from the waveform reproduction device 6, and gives the envelope start instruction (2). When given, the envelope shape (2) is given.
[0023]
The envelope shapes (1) and (2) have the shapes shown in FIG. The envelope shape (1) is an envelope shape in a sounding manner when utilizing a normal performance, and the envelope shape (2) is an envelope shape in a sounding manner when utilizing a legato performance. In any envelope shape, when the envelope start instruction is given from the CPU 1, the volume rises and the sound generation starts, and after that, the envelope shape (2) is a shape that maintains a constant level. The envelope shape (2) is the envelope shape (1). Since the rise of the volume (amplitude) is set slightly more moderately, the sense of attack of the generated musical sound is suppressed to a gentle one.
[0024]
The D / A converter 8 converts the musical sound signal input from the envelope generator 7 into an analog signal, and the musical sound signal is emitted through the audio system 9.
[0025]
The operation of this embodiment apparatus will be described below with reference to the waveform diagram of FIG. 1 and the flowcharts of FIGS.
[0026]
FIG. 1 is a waveform diagram showing a sound generation mode when a legato playing technique (a playing technique in which a key is pressed while another key is pressed) is performed. Here, (1) in FIG. 1 shows a sound generation mode (that is, a normal sound generation mode) when it is assumed that no sound is generated in a legato sounding mode (hereinafter referred to as a legato sounding mode). So that the first key press1The sound begins to sound with the envelope shape (1) in FIG.2However, the same envelope shape (1) is used to pronounce the sound again. Also key press1, Key press2In either case, playback is performed from the beginning of the waveform data. In this case, the latter key press2At the timing of, the pitch (pitch) is pressed1Key press from the one corresponding to the note number2Will be changed according to the note number.
[0027]
Next, (2) in FIG. 1 shows a legato sounding mode when “organ” is selected as a timbre. Therefore, the sound source waveform generated by the waveform reproduction device 6 is waveform data (1) for “organ”. As shown, the first key press1The sound begins to sound with the envelope shape (1) in FIG.2For this, the reproduction of the envelope shape (1) is maintained as it is. That is, the envelope is not restarted. Also key press1In the case of, playback starts from the beginning of the waveform data.2In the case of key press without returning to the beginning1Continue playing with. However, the latter key press2At the timing of, the pitch (pitch) is pressed1Key press from the one corresponding to the note number2Will be changed according to the note number.
[0028]
In this way, for legato playing with a tone of “organ”, according to the legato pronunciation mode as described above, the waveform data of “organ” has a characteristic in its sustained part, so each time a key is pressed, Rather than replaying the data from the beginning, it is easier to connect the sound to the sound when the waveform playback is kept in its original state and the pitch is changed according to the new key press. it can.
[0029]
Further, (3) in FIG. 1 shows a legato sound generation mode when “piano” is selected as a timbre. Therefore, the sound source waveform generated by the waveform reproducing device 6 is waveform data (1) for “piano”. As shown, the first key press1The sound begins to sound with the envelope shape (1) in FIG.2On the other hand, the envelope shape (2), which rises more slowly than the original envelope shape (1), is selected and the sound is regenerated. Key press1, Key press2In either case, playback is performed from the beginning of the waveform data. The latter key press2At the timing of, the pitch (pitch) is pressed1Key press from the one corresponding to the note number2Will be changed according to the note number.
[0030]
Thus, for legato playing with a tone of “piano”, according to the legato pronunciation mode as described above, the waveform data of “piano” is characterized by its attack part, so that the waveform is The data is replayed from the beginning, the amplitude (volume) of the attack part is gradually increased to weaken the attack feeling, and the characteristics of the “piano” timbre waveform are maintained. By changing the height according to the new key press, the sound can be connected smoothly. In other words, in the case of the “piano” timbre waveform, changing the pitch only with respect to a new key press will lose the original characteristics of the “piano” timbre, and the connection between sound and sound. I feel unnatural.
[0031]
Next, a procedure for performing the above-described sounding mode switching control will be described with reference to FIGS. Here, FIG. 4 is a flowchart showing a processing procedure when a key pressing operation is performed, and FIG. 5 is a flowchart showing a processing procedure when a key release operation is performed.
[0032]
First, a timbre selection process is performed on the premise that a key pressing / releasing process is performed. This tone color selection process is started when the user selects a tone color of a musical tone to be generated by the tone color selection device 4. When the timbre selected by the user is “piano”, the timbre selection information (1) is sent from the timbre selection device 4 to the CPU 1 and when it is “organ”, the timbre selection information (2) is sent. When the CPU 1 receives the timbre selection information (1) indicating the timbre “piano”, the CPU 1 obtains the waveform number “1” and the legato mode “1” by referring to the timbre parameter table in the ROM 2, and sets the current waveform number CWN. Write the waveform number “1” and the legato mode “1” in the current legato mode CLM. On the other hand, when the timbre selection information (2) indicating the timbre “organ” is received, the waveform number “2” and the legato mode “2” are obtained by referring to the timbre parameter table in the ROM 2, and the waveform is displayed as the current waveform number CWN. Write the number “2” and the legato mode “2” in the current legato mode CLM.
[0033]
Next, a processing procedure at the time of a key pressing operation will be described with reference to FIG. When a key operation (key pressing / key release operation) is performed on the keyboard device 5, note data corresponding to the key operation is sent from the keyboard device 5 to the CPU 1. The note data includes information indicating whether the key is pressed or released and a note number.
[0034]
If the note data is a key depression, the processing flow of FIG. 4 is activated. First, it is determined whether or not the value of the current note number CNN in which the note number corresponding to the currently sounding musical tone is written is “−1” (step S1). The current note number CNN “−1” indicates that the previous key operation was a key release, and in this case, the current key press is not a simultaneous key press of two keys, that is, a legato playing method. Means not. On the other hand, if the current note number CNN is any value from “0” to “127”, it means that the previous key press is still continued, and therefore, the current key press has two keys pressed simultaneously. It means that it is a keyed legato performance.
[0035]
As a result of the determination in step S1, if the value of the current note number CNN is “−1”, that is, not the legato performance, a musical tone is generated in a normal sounding manner. That is, the note number of the note data by the current key depression is held in the current note number CNN (step S2). Then, the CPU 1 sends a waveform reproduction start instruction corresponding to the value of the current waveform number CWNN and the value of the current note number CNN to the waveform reproduction device 6 (step S3). At the same time, an envelope start instruction (1) for instructing a normal sound generation mode is sent to the envelope generator 7 (step S4).
[0036]
As a result, the waveform reproduction device 6 uses the tone waveform data specified by the value of the current waveform number CWN, that is, waveform data (1) for “piano” and waveform data (2) for “organ”. Is read from the waveform memory as a sound source signal at a reading speed corresponding to the note number (pitch) held in the current note number CNN from the head, and this sound source signal is sent to the envelope generator 7. Then, an envelope shape (1), which is a normal sound generation mode, is added to the input sound source signal and output to the D / A converter 8 for sound emission. Thereby, the normal performance which is not legato performance is performed.
[0037]
On the other hand, if the value of the current note number CNN is not “−1” as a result of the determination in step S 1, that is, if it is a legato performance, a musical tone is generated in a legato pronunciation manner according to the tone selected at that time. To do. First, in this case as well, the note number of the note data by the current key depression is held in the current note number CNN (step S5).
[0038]
Thereafter, the value of the current legato mode CLM is determined (step S6). If the current legato mode CLM is “1”, a tone is generated in a tone manner of the tone “piano”, and if it is “2”, a tone is generated in a tone manner of the tone “organ”.
[0039]
That is, when the tone color is “piano”, the CPU 1 instructs the waveform playback device 6 to start waveform playback (1) when the tone color is “piano” and the value of the current note number CNN (the current press number). (Note number of key) is transmitted (step S7), and at the same time, an envelope start instruction (2) for instructing a legato sounding manner when the tone color is “piano” is transmitted to the envelope generator 7 (step S8). ).
[0040]
As a result, the waveform reproduction device 6 reads out the waveform data (1) of “Piano” from the beginning thereof from the waveform memory 11 at a reading speed corresponding to the note number (pitch) of the key depression, and makes it a sound source signal. This sound source signal is sent to the envelope generator 7. The envelope generator 7 adds the envelope shape (2), which is a “piano” legato sounding mode, to the input sound source signal and outputs it to the D / A converter 8 for release. Sound. Thereby, the performance of the legato performance by the "piano" of the form shown in (3) of FIG. 1 is performed.
[0041]
On the other hand, if the tone is “organ”, the CPU 1 sends the current note number CNN (note number of the current key depression) to the waveform reproduction device 6 (step S9). Unlike the time, the envelope start instruction and the waveform reproduction start instruction are not sent.
[0042]
As a result, the waveform reproducing device 6 reads the “organ” waveform data (2) from the waveform memory 12 at the reading speed corresponding to the note number (pitch) of the current key depression from the continuation of the previous reproduction position. The sound source signal is sent to the envelope generator 7. Since the envelope generator 7 does not receive an envelope start instruction from the CPU 1 at the timing of the current key depression, the envelope shape that started at the time of the previous key depression is continuously added to the input sound source signal, and this is added to the musical tone. The signal is output to the D / A converter 8 and emitted. In this case, the pitch of the tone signal is changed to the pitch corresponding to the key press at the time of the current key press. As a result, the legato playing is performed by the “organ” in the form shown in FIG.
[0043]
On the other hand, if the note data input by key operation on the keyboard device 5 is a key release, the processing flow of FIG. 5 is activated. First, it is determined whether or not the current note number CNN coincides with the note number based on the released key data (step S11). If they match, it means that the key corresponding to the tone currently being sounded has been released. In this case, the current note number CNN holds “−1” indicating the key release ( In step S12), a waveform reproduction end instruction is sent to the waveform reproduction device 6 (step S13). Thereby, waveform reproduction is stopped.
[0044]
Note that when the current note number CNN does not match the note number based on the key data of the key release, this key release process is immediately terminated.
[0045]
In carrying out the present invention, various modifications are possible. For example, in the above-described embodiment, whether or not the legato playing method is performed is determined by whether or not the key pressed before the new key pressing is released. However, the present invention is not limited to this. For example, even when there is a key depression this time just after the previous key is released, it may be determined to be regarded as a legato playing technique. .
[0046]
Further, in the above-described embodiment, two kinds of legato pronunciation modes are prepared and controlled for different tone colors, that is, “piano” and “organ” tone colors, and the legato pronunciation modes correspond to differences in tone colors. The envelope shape is different. In other words, for the “Piano” timbre, an envelope shape with a gradual attack at the beginning of the legato playing is used and the waveform data is played from the beginning, while the “Organ” timbre is played. On the other hand, while continuously using the envelope shape of the previous key depression, the continuation of the previous reproduction position of the waveform data is reproduced, so that the respective sound generation modes are made different. That is, in the present invention, there are at least three pronunciation modes in total, that is, the two pronunciation modes at the time of the above-described legato performance and the non-legato pronunciation mode.
Non-legato: Envelope shape (1) is assigned and waveform data is read from the top.
Legato (piano): Envelope shape (2) is added and waveform data is read from the top.
Legato (organ): No change in envelope, waveform data is played back from the previous playback position.
There are three ways of pronunciation.
[0047]
Therefore, in the present embodiment, the above-described two elements are included: an envelope-related element such as the shape of the envelope and whether or not to add the envelope; and an element related to the pronunciation reading method such as whether or not the pronunciation data is read from the beginning. Three pronunciation modes are realized.
[0048]
However, the present invention is not limited to this, and examples of changing the sound generation mode include the following (in the following examples (1) to (8), the above two elements (1), (2 ) Is also shown in a compound form). In these examples, it is common that the pitch is changed according to the note number of the key that has been pressed, both when the legato performance is performed and when the non-legato performance is performed. .
[0049]
(1) Different sound generation modes depending on the elements related to the envelope of the musical sound waveform: Control is performed such as changing the shape of the waveform or not adding a new envelope as in the above-described embodiment, so that different sound generation modes are obtained. Realize.
[0050]
(2) Different sound generation modes depending on the elements related to how to read the waveform of the musical sound: The musical sound waveform is read from the beginning, read from a predetermined address, or continuously played from the previously played address, Realize different pronunciation styles. For example, in the envelope shape as shown in FIG. 6, the sound generation mode can be changed depending on the reproduction from the address add1, address add2, and address add3.
[0051]
(3) Different sound generation modes depending on the combination of musical sound waveform elements: Some musical sounds combine a plurality of waveform elements to create a timbre. For example, the waveform corresponding to the attack portion and the waveform corresponding to the duration portion are generated in different musical tone generation channels and combined to form a tone color of one musical tone. In such a case, for example, the waveform corresponding to the attack portion is not instructed to start waveform reproduction (that is, only the waveform corresponding to the continuous portion is instructed to start waveform reproduction) in response to the key depression during the legato performance. change.
[0052]
(4) Different sound generation modes depending on factors relating to the case where a musical sound waveform is generated in real time by calculation (Part 1): In the above examples, the waveform is sampled in advance and held in a memory and read out. However, these waveforms may be generated in real time by calculation. In this case, the waveform is generated again from the beginning by calculation in response to the key depression during the legato performance. Or, the pronunciation mode is changed depending on whether the previous waveform is used as it is.
[0053]
(5) A different sounding mode is generated depending on factors relating to the case where a musical sound waveform is generated in real time by calculation (No. 2): When a waveform is generated in real time by calculation, the key press during legato playing is calculated. By changing a parameter to be used (for example, by changing a parameter for managing the position on the time axis of occurrence), the sound generation mode is changed by changing the position of the waveform on the time axis.
[0054]
(6) Different sound generation modes depending on factors related to the case where a musical sound waveform is generated in real time by calculation (No. 3): When a waveform is also generated in real time by calculation, it is calculated with respect to key presses during legato playing. By changing the arithmetic expression to be used, the shape of the generated waveform is changed to change the sound generation mode.
[0055]
(7) Make different pronunciation modes depending on the elements related to the effect to be applied to the generated musical sound: An effect applying means (effector) is provided to give the generated musical sound an effect such as pitch change, volume change, timbre change, etc. In addition, the pronunciation mode is changed by changing the effect to be given to the key depression during the legato performance.
[0056]
(8) A different pronunciation mode is selected depending on the elements related to the effect already applied: The state of a musical tone that is already sounding (for example, a state modulated by LFO) is taken over or stopped in response to a key depression during a legato performance. Depending on how you change the pronunciation.
[0057]
As described above, the elements (1) to (8) are listed. However, attention may be paid to one of them, and three different pronunciation modes may be used. Alternatively, attention may be paid to two or more elements (1) to (8), and three or more different pronunciation modes may be obtained. In short, if any one (or a plurality) of the elements (1) to (8) is focused on, three or more pronunciation modes are included in the present invention.
[0058]
In the above embodiment, the keyboard device is used as means for supplying performance data (ie, note data). However, the present invention is not limited to this, and the performance data is, for example, performance data from an automatic performance device. Alternatively, it may be performance data received via a communication line.
[0059]
In addition, although it has been described that the user specifies the timbre in the above-described embodiment, the present invention is not limited to this, and is added to performance data from, for example, the automatic performance device or the communication line as described above. It may be automatically specified based on the tone color information.
[0060]
【The invention's effect】
As explained above, the bookElectronic musical instrumentsAccording to the above, since the musical sound can be generated in an optimal pronunciation mode that matches the tone at that time, the legato method can be played naturally with any type of tone. it canThere is an effect.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a diagram for explaining two sound generation modes during a legato performance by an apparatus according to an embodiment of the present invention.
FIG. 2 is a diagram showing an overall configuration of an electronic musical instrument as an embodiment of the present invention.
FIG. 3 is a diagram showing an envelope shape at the time of normal performance and an envelope shape at the time of the legger playing method used in the example device.
FIG. 4 is a diagram illustrating a processing procedure when a key is pressed in the embodiment apparatus.
FIG. 5 is a diagram illustrating a processing procedure when a key is released in the embodiment apparatus;
FIG. 6 is a diagram for explaining an example in which a sound generation mode is changed at an envelope-shaped waveform reading position;
[Explanation of symbols]
1 CPU (Central processing unit, Selection means)
2 ROM (Read Only Memory)
3 RAM (Random Access Memory)
4 tone selection device(Designation method)
5 Keyboard device(Supply means)
6 Waveform playback device(Acquisition means, part of musical sound generation means)
7 Envelope generator(Part of musical sound generation means)
8 A / D converter(Part of musical sound generation means)
9 Audio system
11 Waveform memory (part of storage means)
12 Waveform memory (part of storage means)
S1 Key press processing (detection means)
S6 Key pressing process (determination means)

Claims (3)

Supply means for supplying note data instructing the pronunciation or stop of a musical sound;
Detection means for detecting legato performance from the note data supplied by the supply means ;
Storage means for storing the tone waveform of the timbre for the musical sound to be played;
A designation means for designating a tone for a musical sound to be played;
Obtaining means for obtaining a sound source waveform of a tone color designated by the designation means from the storage means;
A pronunciation aspects other than pitch respectively two or more different legato sound manner, and selection means for selecting from these two or more legato sound manner that depending on the timbre specified by the specifying means,
Wherein if the performance by legato is not detected by the detection means in response to the note data supplied from said supply means, while produce musical sounds in sound manner not the legato sound manner, by legato by said detecting means and Could music generation means tone legato pronunciation manner selected by the selecting means when the performance is detected,
Determination means for determining whether a tone color designated by the designation means is a tone color using an attenuation sound when a performance by a legato performance is detected by the detection means;
The legato sounding mode selected by the selecting unit includes a head sounding mode in which the sound source waveform of the timbre acquired by the acquiring unit is reproduced from the top, and a tone color generated immediately before the legato playing method is detected by the detecting unit. The continuous sounding mode for playing back the tone waveform of the timbre acquired by the acquisition means from a position that follows the playback position of the tone waveform of the timbre sounded immediately before the sound source waveform of Provided,
The selection means selects the head pronunciation mode when the determination means determines that the timbre specified by the specification means is a timbre that uses an attenuation sound, while the selection means specifies the timbre specified by the specification means An electronic musical instrument characterized in that, when the determination means determines that a timbre is not a timbre that uses a decaying sound, the continuous sounding mode is selected . Supply means for supplying note data instructing the pronunciation or stop of a musical sound;
Detection means for detecting legato performance from the note data supplied by the supply means;
Storage means for storing the tone waveform of the timbre for the musical sound to be played;
A designation means for designating a tone for a musical sound to be played;
Obtaining means for obtaining a sound source waveform of a tone color designated by the designation means from the storage means;
A selection means for selecting two or more types of legato sound generation modes different from each other in a sound generation mode other than the pitch, and selecting one of these two or more types of legato sound generation modes according to the tone color specified by the specifying means;
When the performance of the legato performance is not detected by the detection means, the musical sound is generated in a sounding manner other than the legato sounding manner according to the note data supplied from the supply means, while the performance of the legato performance is played by the detection means. If detected, a musical sound generating means for generating a musical sound in the legato pronunciation mode selected by the selecting means,
Determination means for determining whether a tone color designated by the designation means is a tone color using an attenuation sound when a performance by a legato performance is detected by the detection means;
The legato sounding mode selected by the selection means is a first that has a more gradual rise than the first envelope shape used for the tone waveform of the timbre that is sounded immediately before the detection means detects the legato performance. Using a two-envelope shape, a gentle shape sounding mode for adding an envelope shape to the sound source waveform of the timbre acquired by the acquiring means, and a sound source waveform of a timbre sounded immediately before the legato performance is detected by the detecting means By continuously using the first envelope shape used, the sound source waveform of the timbre acquired by the acquisition means At least a continuous shape pronunciation mode that gives an envelope shape is provided,
The selecting means selects the gentle shape sounding mode when the determining means determines that the timbre specified by the specifying means is a timbre that uses an attenuated sound. An electronic musical instrument characterized in that, when the determination means determines that the timbre is not a timbre that uses an attenuated sound, the continuous shape pronunciation mode is selected. In the legato sounding mode selected by the selecting means, the rise is more gently formed than the first envelope shape used for the tone waveform of the timbre that is sounded immediately before the legato performance is detected by the detecting means. A gentle shape sounding mode in which an envelope shape is imparted to the sound source waveform of the timbre acquired by the acquiring unit using the second envelope shape, and a sound source of a timbre that is sounded immediately before the legato performance is detected by the detecting unit The first envelope shape used for the waveform is continuously used, and at least a continuous shape sounding mode for providing an envelope shape to the sound source waveform of the timbre acquired by the acquisition means is provided,
The selecting means selects the leading sounding mode and the gentle shape sounding mode when the determining unit determines that the tone color specified by the specifying unit is a tone color using a decaying sound, 2. The continuous sounding mode and the continuous shape sounding mode are selected when the determining unit determines that the tone color designated by the means is not a tone color that uses a decaying sound. Electronic musical instruments.