JP6710432B2 - Musical tone control device, electronic musical instrument, musical tone control method and program - Google Patents

Description

The present invention relates to a musical tone control device, an electronic musical instrument, a musical tone control method, and a program that allow even a beginner user to easily play subtones and togging.

Generally, in electronic wind instruments, a pitch-designating switch (pitch key) is provided at a key position similar to that of an acoustic wind instrument, and the pitch of a musical tone is designated by operating the switch and the breath blown into the mouthpiece is blown. A pressure sensor for detecting the pressure is provided, and the volume of the musical sound is determined according to the blowing pressure detected by the pressure sensor.

As a musical instrument of this type, for example, in Patent Document 1, detecting the positions of the upper lip and the lower lip of a user in contact with a mouthpiece, and forming a musical sound according to a parameter generated according to the detected upper lip position and the lower lip position. For example, a technique for controlling the tone color of a generated musical tone according to the movement of the user's cheeks and throat is disclosed.

Japanese Patent Laid-Open No. 2000-122641

By the way, in the technique disclosed in the above-mentioned Patent Document 1, timbre control according to the movement of the user's cheeks and throat is realized based on the parameters obtained by detecting the positions of the user's upper lip and lower lip that contact the mouthpiece. However, there is a problem that beginner users cannot easily play subtones known as soft sounds including breathtaking sounds and tongues that stop the vibration of the reed with the tongue for a moment to separate the sounds. ..

The present invention has been made in view of the above circumstances, and an object thereof is to provide a musical tone control device, an electronic musical instrument, a musical tone control method, and a program that allow even a beginner user to easily play a subtone or a toning. ..

The musical sound control device of the present invention, based on the detection processing for detecting the wind information indicating the state of the wind from the detection unit, and the wind information detected from the detection unit, the first rendition style and the first rendition style. wherein a rendition style determination processing to determine whether any of the performance style is made of a plurality of rendition style, when the first performance style is determine by that made by the rendition style determination processing comprising a different second articulation A saving process of saving the wind information detected by the detecting unit in a saving unit as comparison reference information, and a musical tone instruction process of instructing a sound source to generate a musical tone corresponding to the rendition style determined by the rendition style discrimination processing are executed. includes a processing unit for the style-of-rendition Determination process, a blowing information detected from the detection unit, the difference between the comparison reference information stored in the storage unit, any of the plurality of rendition It is characterized in that it is determined whether or not the rendition method is performed.

In the musical tone method of the present invention, the musical tone control device detects the wind information indicating the state of the wind performance from the detection unit, and based on the wind information detected by the detection unit, the first performance method and the first performance method. the performance style is another different and rendition style determination processing any playing of a plurality of rendition style and a second performance style is determined whether made, determine the first performance style has been made by the rendition style determination processing And a musical tone instruction process for instructing the sound source to generate musical tones corresponding to the rendition style determined by the rendition style discrimination processing. If, is executed, and the style-of-rendition Determination process, a blowing information detected from the detection unit, the difference between the comparison reference information stored in the storage unit, any of the plurality of rendition It is characterized by determining whether or not the rendition style is performed.

A program of the present invention causes a computer to perform a first rendition style and a first rendition style based on detection processing for detecting wind information indicating a state of wind from a detection section, and wind information detected from the detection section. when was by different and rendition style determination processing to determine whether any of the performance style is made of a plurality of rendition style and a second performance style, determine the first performance style has been made by the rendition style determination processing A storage process of storing the wind information detected by the detection unit in a storage unit as comparison reference information, and a musical tone instruction process of instructing a sound source to generate a musical tone corresponding to a rendition style determined by the rendition style determination process. is executed, the style-of-rendition Determination process, a blowing information detected from the detection unit, wherein the difference between the comparison reference information stored in the storage unit, any playing of the plurality of rendition style for It is characterized by determining whether or not it has been done.

In the present invention, even a beginner user can easily play subtones and tonguing.

1 is an external view showing the overall structure of an electronic wind instrument 100 according to an embodiment of the present invention and a sectional view showing the structure of a mouthpiece 6. FIG. 3 is a block diagram showing an electrical configuration of the electronic wind instrument 100. FIG. It is a figure which shows the structure of RAM13, and the structure of the performance style discrimination table PDT. It is a figure which shows an example of output distribution (histogram) of pad data PD1-PD12. It is a state transition diagram showing an operating state of the CPU 11. 6 is a flowchart showing an operation of a main routine executed by the CPU 11. 6 is a flowchart showing an operation of a sensing pad process executed by CPU 11.

Embodiments of the present invention will be described below with reference to the drawings.
A. Structure The overall structure of the electronic wind instrument 100 according to the embodiment of the present invention will be described with reference to FIG. FIG. 1A is an external view showing the entire structure of an electronic wind instrument 100 imitating the “saxophone” shape of an acoustic wind instrument, and FIG. 1B is a sectional view showing the structure of a mouthpiece 6. In FIG. 1A, a pitch key 2 for fingering operation (a performance operation for designating a pitch) is arranged on the front surface of a saxophone-shaped main body 1. A speaker 4 for emitting a musical sound is provided inside the opening end 3 side of the main body 1. Further, on the side surface side of the main body 1, an operation section 5 having various operation switches in addition to a power switch for turning on/off the power source is provided.

A mouthpiece 6 is fitted to the base end of the main body 1, and a breath pressure sensor 8 for detecting the breath pressure of a user (sounder) blown through the mouthpiece 6 is provided. The mouthpiece 6 is provided with a sensing pad 7 (detection unit) at a structure shown in FIG. 1B, that is, at a position corresponding to a lead of an acoustic wind instrument.

As shown in FIG. 1B, the sensing pad 7 is composed of pads POS1 to POS12 for detecting contact by a capacitance method. The pads POS1 to POS12 are areas for contact detection, each of which is composed of a plurality of detection elements arranged in a matrix. The respective detection outputs of these pads POS1 to POS12 are supplied to an input unit 9 described later and converted into pad data PD1 to PD12 (described later). The pad POS1 is on the tip side and the pad POS12 is on the heel side.

B. Configuration Next, the electrical configuration of the electronic wind instrument 100 will be described with reference to FIG. FIG. 2 is a block diagram showing an electrical configuration of the electronic wind instrument 100. In FIG. 2, the sensing pad 7 includes the pads POS1 to POS12 each composed of a plurality of detection elements arranged in a matrix, as described above. The input unit 9 converts each detection output of the pads POS1 to POS12 into pad data PD1 to PD12 representing a contact area (the number of detection elements for which contact is detected).

That is, the input unit 9 converts the detection output of the pad POS1 into pad data PD1 representing a state (contact area) where the tongue of the user holding the mouthpiece 6 contacts the lead. Further, the input unit 9 converts the respective detection outputs of the pads POS2 to POS12 into pad data PD2 to PD12 representing a state (contact area) where the lower lip of the user holding the mouthpiece 6 contacts the lead. Therefore, it can be said that the output distributions (histograms) of the data PD1 to PD12, which represent the state (contact area) where the tongue and lower lip of the user holding the mouthpiece 6 are in contact with the lead, can be said to express the way of playing.

The breath pressure sensor 8 detects the breath pressure blown from the mouthpiece 6 and outputs a breath pressure signal. The A/D converter 10 level-amplifies the breath pressure signal output from the breath pressure sensor 8, and then A/D-converts it under the control of the CPU 11 to generate breath pressure data Dp. The breath pressure data Dp output by the A/D conversion unit 10 and the pad data PD1 to PD12 generated by the input unit 9 are temporarily stored in a buffer area of the RAM 13 described below under the control of the CPU 11.

A pitch key 2 (see FIG. 1A) arranged on the front surface of the main body 1 generates pitch data P according to a fingering operation (a performance operation for designating a pitch) by the user. The pitch data P representing the pitch of the sound being produced is taken into the CPU 11. The operation section 5 has various operation switches such as a tone color selection switch for selecting a tone color of a generated musical tone, in addition to a power switch for powering on/off the power source, and generates a switch event according to the type of switch to be operated. The switch event generated by the operation unit 5 is captured by the CPU 11.

The CPU 11 (processing unit) sets the operating state of each unit of the musical instrument on the basis of various switch events generated by the operation unit 5, and also the sound designated by the pitch data P generated according to the fingering operation of the pitch key 2. The sound source 14 is instructed to generate a high tone. The characteristic processing operation of the CPU 11 according to the gist of the present invention will be described later in detail. The ROM 12 stores various program data loaded into the CPU 11. The various programs include a main routine described later and a sensing pad process called from the main routine.

The RAM 13 (storage unit) includes a buffer area BA, a rendition style determination table PDT, and a work area WA, as shown in FIG. The buffer area BA of the RAM 13 is used as a ring buffer according to the circular address designated by the CPU 11, and stores the pad data PD1 to PD12 output from the input unit 9 and the breath pressure data Dp output from the A/D conversion unit 10 described above. Capture in temporal order and store temporarily.

The rendition style determination table PDT stored in the RAM 13 is pad data PD1 representing a state (contact area) in which the tongue and lower lip of the user holding the mouthpiece 6 contact the pads POS1 to POS12 of the sensing pad 7 described above. It is a table for discriminating the rendition style based on the output distribution (histogram) of the PD 12.

Here, the rendition style determination table PDT will be described with reference to FIGS. FIG. 4A is a diagram showing a typical example of the output distribution (histogram) of the pad data PD1 to PD12 that is generated when the user holds the mouthpiece 6 with a normal playing style. In this example, the pad data PD1 is "66", the pad data PD2 is "119", the pad data PD3 is "169", the pad data PD4 is "177", the pad data PD5 is "170", and the pad data PD6 is "146". , The pad data PD7 is "126", the pad data PD8 is "86", and the pad data PD8 to PD12 are "0".

That is, in a normal rendition style, the pad data PD1 to PD4 sequentially increase, the pad data PD4 reaches a peak (mountain), and then the pad data PD5 to PD8 decrease sequentially. Becomes Such a “mountain type” pattern is an output distribution (histogram) showing a normal rendition style, and serves as a comparison reference for performing rendition style discrimination.

The maximum value here does not have to be the maximum data value (maximum value) of the output pad data PD1 to PD12, and may be any maximum value. Here, the shape of the graph having the maximum value is called a mountain shape. For example, the graph in which the maximum value is obtained with the pad data PD4 as shown in FIG. 4A is referred to as a "mountain type" which is a reference for performing rendition style determination because the above-described mountain type is obtained.

In addition, "the right side of the peak (maximum value) increases" to be described later means that the output value (pad data) of the pad located on the tip side of the pad for which the maximum value is obtained increases. The left side of () decreases” means that the output value (pad data) of the pad located on the heel side of the pad having the maximum value decreases.

In the example of the rendition style determination table PDT illustrated in FIG. 3B, the output distribution (histogram) of the newly acquired current pad data PD1 to PD12 is different from the output distribution (histogram) of the “mountain type” that indicates a normal rendition. The rendition style is discriminated according to the difference in the rendition. Specifically, in the output distribution (histogram) of the current pad data PD1 to PD12, is "the right side of the peak (maximum value) decreased" with respect to the "mountain-shaped" output distribution (histogram) that indicates a normal performance style? It is judged whether or not "the left side of the peak (maximum value) has increased" or "the number of peaks (maximum value) has changed from one to two", and corresponds to the judgment result. Determine the playing style.

Specifically, for example, it is assumed that the pad data PD1 to PD12 in the example illustrated in FIG. 4B are newly acquired. In this example, the pad data PD1 is "106", the pad data PD2 is "129", the pad data PD3 is "169", the pad data PD4 is "177", the pad data PD5 is "170", and the pad data PD6 is "146". , The pad data PD7 is "106", the pad data PD8 is "66", and the pad data PD8 to PD12 are "0".

Comparing this with the output distribution (histogram) of the pad data PD1 to PD12 illustrated in FIG. 4A, which is a comparison reference, “the right side of the mountain decreases” (yes) and “the left side of the mountain increases”. (Yes) and “the number of peaks (maximum values) has not changed from one to two” (no), so based on this determination result, the performance style determination table PDT illustrated in FIG. It is determined to be "subtone playing method".

Further, for example, it is assumed that the pad data PD1 to PD12 in the example illustrated in FIG. 4C are newly acquired. In this example, the pad data PD1 is "146", the pad data PD2 is "129", the pad data PD3 is "169", the pad data PD4 is "177", the pad data PD5 is "170", and the pad data PD6 is "146". , The pad data PD7 is "126", the pad data PD8 is "86", and the pad data PD8 to PD12 are "0".

When this is compared with the output distribution (histogram) of the pad data PD1 to PD12 illustrated in FIG. 4A, which is a comparison reference, the “right side of the mountain decreases” (no), but “the left side of the mountain” Is increased” (yes), the maximum value becomes two, and the “number of peaks (maximum value) changes from one to two” (yes). Based on this determination result, the result shown in FIG. From the rendition style determination table PDT shown in the figure, it is determined as "toning rendition style".

Furthermore, by comparing the output distribution (histogram) of the comparison reference illustrated in FIG. 4A with the output distribution (histogram) of the newly acquired pad data PD1 to PD12, “the right side of the mountain decreases” (yes). , “The left side of the mountain does not increase” (no), the maximum value becomes 2 and “the number of mountains (maximum value) changes from 1 to 2” (yes), or “the right side of the mountain becomes If "decrease" (yes), "the left side of the mountain increases" (yes), the maximum value becomes two, and "the number of peaks (maximum value) changes from one to two" (yes) From the rendition style discrimination table PDT shown in FIG. 3B, it is discriminated as “toning & subtone rendition style”.

In addition, by comparing the output distribution (histogram) of the comparison reference illustrated in FIG. 4A and the output distribution (histogram) of the newly acquired pad data PD1 to PD12, “the right side of the mountain decreases” (no). No increase in the left side of the mountain (no) and no change in the number of peaks (maximum values) from one to two (no), or a decrease in the right side of the mountain (no) )), “the left side of the mountain does not increase” (no), the maximum value becomes 2 and the “number of peaks (maximum value) changes from 1 to 2” (yes), or If the number of peaks (maximum value) changes from one to two (no), the right side of the peak does not decrease” (no) but the left side of the mountain increases (yes). From the rendition style determination table PDT illustrated in (b), it is determined as "normal rendition style".

The configuration of the embodiment will be described again with reference to FIG. In FIG. 3A, the work area WA of the RAM 13 is used as a work area of the CPU 11 and temporarily stores various register flags. The various registers include a register that holds a state variable state indicating the rendition style determined by the rendition style determination table PDT described above.

The state variable state is a state Not_set in which the user does not hold the mouthpiece 6 and the pad data PD1 to PD12 all correspond to “0”, a state Normal in which the mouthpiece 6 is held in a normal rendition style, and a mouse in the subtone playing style. It is composed of a state Subtone in which the piece 6 is held, a state Tonguing in which the mouthpiece 6 is held by a tongue rendition and a state Tonguing & Subtone in which the mouthpiece 6 is held in a tongue rendition & subtone rendition.

The state variable state changes under the control of the CPU 11. Specifically, as shown in the state transition diagram shown in FIG. 5, the state Not_set in which the mouthpiece 6 is not held is used as a starting point to transition to the normal state Normal. In the normal state Normal, in addition to returning to the state Not_set, it becomes possible to make a transition to any of the state Subtone, state Tonguing, and state Tonguing & Subtone. The state Subtone, the state Tonguing, and the state Tonguing & Subtone can be returned to the state Not_set and the state Normal, respectively, and can transit to each other.

Next, the configuration of the embodiment will be described again with reference to FIG. In FIG. 2, the sound source 14 has a plurality of tone generation channels (MIDI channels) configured by a well-known waveform memory reading method, and generates musical tone waveform data in accordance with a MIDI event supplied from the CPU 11.

Specifically, in the normal state Normal, the sound source 14 reproduces the waveform data of the tone color (wind instrument sound) selected by the user at the reading speed according to the pitch data P, and reproduces the waveform data. Musical tone waveform data whose volume is controlled according to Dp is generated. When transitioning to the state Subtone, the barycenter position calculated from the output distribution (histogram) of the pad data PD1 to PD12 is set as the lower lip position, the subtone waveform data associated with this lower lip position is reproduced, and this is generated. The tone waveform data is added and synthesized to form tone waveform data including subtones. When transitioning to the state Tonguing, for example, there is a tonguing effect in which the musical tone waveform data being generated at the timing when the pad data PD1 exceeds a predetermined threshold is note-off/note-on within a short time to stop the musical tone being sounded for a moment. Add.

The sound system 15 converts the musical tone waveform data output from the sound source 14 into an analog musical tone signal, performs filtering such as removal of unnecessary noise from the musical tone signal, amplifies the noise, and then emits it from the speaker 4. Sound.

C. Operation Next, each operation of the main routine and the sensing pad processing executed by the CPU 11 of the electronic wind instrument 100 having the above-described configuration will be described with reference to FIGS. 6 to 7. In the following description of the operation, the main body of the operation is the CPU 11 unless otherwise noted.

(1) Operation of Main Routine FIG. 6 is a flowchart showing the operation of the main routine executed by the CPU 11. When the electronic wind instrument 100 is powered on by the operation of the power switch, the CPU 11 advances the processing to step SA1 shown in FIG. 6, and initializes each part of the electronic wind instrument 100. When the initialization is completed, the process proceeds to step SA2 and the sensing pad process is executed.

In the sensing pad process, as will be described later, the output distribution (histogram) of the pad data PD1 to PD12 when the user (blower) holds the mouthpiece 6 with a normal performance is used as a comparison reference, and the newly acquired pad data is used. How the output distributions (histograms) of PD1 to PD12 changed with respect to this comparison standard, that is, whether "the right side of the mountain has decreased", "the left side of the mountain has increased", "mountain" According to the result of determining whether or not the number of (maximum value) has changed from one to two, the corresponding performance style is determined from the performance style determination table PDT, and the state transitions to the determined performance style.

Next, in step SA3, the breath pressure of the user (blister) blown through the mouthpiece 6 is detected by the breath pressure sensor 8, and the detection output of the breath pressure sensor 8 is obtained by A/D conversion. The breath pressure detection process of temporarily storing the breath pressure data Dp in the buffer area BA of the RAM 13 is executed. Subsequently, in step SA4, a pitch key switch process for generating pitch data P corresponding to the fingering operation of the pitch key 2 (a performance operation for designating a pitch) is executed.

Then, in step SA5, a tone generation process for generating a musical tone according to the rendition style determined in the sensing pad process in step SA2 is executed. That is, in the normal state where a normal playing style is performed, the waveform data of the tone color (wind instrument sound) selected by the user is reproduced at the reading speed according to the pitch data P, and the reproduced waveform data is taken as the breath pressure data Dp. To generate musical tone waveform data whose volume is controlled according to.

When a transition is made from the state Normal in which a normal rendition style is performed to the state Subtone in which a subtone rendition style is performed, the position of the center of gravity calculated from the output distribution (histogram) of the pad data PD1 to PD12 is set as the lower lip position, and the position corresponds to this lower lip position. The attached subtone waveform data is reproduced, and this is added and synthesized with the musical tone waveform data being generated to form musical tone waveform data including the subtone. Further, when the state transitions to the state Tonguing, for example, the tone waveform data being generated at the timing when the pad data PD1 exceeds a predetermined threshold is note-off/note-on within a short period of time to stop the musical tone being sounded for a moment. Add effects.

Subsequently, in step SA6, other processing such as selecting a tone color of a musical tone generated in response to the operation of the tone color selection switch of the operation unit 5 is executed. Then, thereafter, the above steps SA2 to SA6 are repeatedly executed until the power is turned off by operating the power switch.

(2) Operation of Sensing Pad Process FIG. 7 is a flowchart showing the operation of the sensing pad process executed by the CPU 11. When this processing is executed through step SA2 (see FIG. 6) of the main routine described above, the CPU 11 advances the processing to step SB1 shown in FIG. 7, and acquires the pad data PD1 to PD12 generated by the input unit 9. Then, it is temporarily stored in the buffer area BA of the RAM 13.

Next, in step SB2, it is determined whether or not the user (winder) is holding the mouthpiece 6 based on the pad data PD1 to PD12 acquired in step SB1. Specifically, when the total sum of the outputs of the pad data PD1 to PD12 exceeds a predetermined value, it is determined as a "held state", or a predetermined threshold value of the outputs of the pad data PD1 to PD12 is set. If there is pad data PD that exceeds the threshold, it is determined that the pad data PD is "held."

When it is determined in step SB2 that the mouthpiece 6 is in the "non-held state", the determination result is "NO", and the process proceeds to step SB3. In step SB3, the state variable state is transited to the state Not_set, and the present processing is terminated.

On the other hand, if the user (swinger) is holding the mouthpiece 6, the result of the determination in step SB2 is "YES", and the process proceeds to step SB4. In step SB4, it is determined whether or not the immediately preceding state variable state is the state Not_set.

In addition, in step SB5 and step SB12 described later, the state variable state is updated according to the state transition, and the immediately previous state variable state indicates the state variable state before the update, while the update is performed. After that, the state variable state becomes the current state variable state. Therefore, in step SB4, it is determined whether or not the state variable state before updating according to the state transition is the state Not_set in which the mouthpiece 6 is not held.

When the previous state variable state, that is, the state variable state before updating according to the state transition is the state Not_set, the determination result of the above step SB4 is “YES”, and the process proceeds to step SB5, and the mouthpiece In response to the transition from the state in which 6 is not held to the state in which 6 is held, the current state variable state is updated to the normal state Normal.

Next, in step SB6, the pad data PD1 to PD12 obtained in step SB1 are stored in the work area WA of the RAM 13 as a comparison reference, and the process is temporarily terminated. In addition to the pad data PD1 to PD12, the comparison reference to be saved is each output on the left side of the peak (maximum value) and each output on the right side of the peak (maximum value) in the output distribution (histogram) of the pad data PD1 to PD12. including.

On the other hand, if the immediately preceding state variable state is not State Not_set, that is, if the mouthpiece 6 is in the normal state Normal, the result of the determination in step SB4 is "NO", and the process proceeds to step SB7. In step SB7, the number of peaks (maximum value) is detected from the output distribution (histogram) of the pad data PD1 to PD12 acquired in step SB1.

Next, in step SB8, each output on the left side of the peak (maximum value) stored in step SB6 and each output on the left side of the peak (maximum value) of the pad data PD1 to PD12 acquired in step SB1. Check whether there is an increase on the left side of the peak (maximum value) by comparing each output of the pad data of the same number with.

Then, in step SB9, each output on the right side of the mountain (maximum value) stored in step SB6 and each output on the right side of the mountain (maximum value) of the pad data PD1 to PD12 acquired in step SB1. Check whether there is an increase on the right side of the peak (maximum value) by comparing each output of the pad data with the same number as.

Then, in step SB10, the output distribution (histogram) of the pad data PD1 to PD12 acquired in step SB1 based on the results of steps SB7 to SB9 is calculated from the comparison reference output distribution (histogram) stored in step SB6. Whether or not it has changed, that is, whether "an increase in the number of peaks (maximum value)", "increase on the left side of the peak (maximum value)" or "increase on the right side of the peak (maximum value)" has occurred Then, the performance style discrimination table PDT (see FIG. 3B) described above is referenced to determine which performance style the current performance style is.

Specifically, for example, when the output distribution (histogram) of the pad data PD1 to PD12 serving as a comparison reference is as shown in FIG. 4A, the newly acquired current pad data PD1 to PD12 is shown in FIG. 4B. Output distribution (histogram). Then, in this case, “the right side of the mountain decreases” (yes), “the left side of the mountain increases” (yes), and “the number of mountains (maximum value) changes from one to two” (no) Since it does not exist, it is discriminated as "subtone rendition" from the rendition style discrimination table PDT shown in FIG.

Further, for example, when the output distribution (histogram) of the pad data PD1 to PD12 serving as the comparison reference is as shown in FIG. 4A, the newly acquired current pad data PD1 to PD12 is the output distribution shown in FIG. 4C. (Histogram). Then, in this case, "the right side of the mountain does not decrease" (no), but "the left side of the mountain increases" (yes), the maximum value becomes 2, and the number of "mountain (maximum value) is 1". Since it changes from two to two” (yes), it is determined to be “toning rendition” from the rendition style determination table PDT illustrated in FIG.

Subsequently, in step SB11, it is determined whether or not the rendition style determined in step SB10 is the same as the rendition style determined in the determination timing of the previous SB10. That is, the rendition style judged at the current judgment timing (first timing) is compared with the rendition style judged at the previous judgment timing (second timing), which is the timing earlier than this time, and the rendition style is compared. To determine if is changing.

For example, whether or not it was determined to be a normal performance style at the previous determination timing (second timing), was determined to be a toning performance style at this determination timing (first timing) (whether the performance style changed), or a subtone at the previous determination timing. It is judged whether or not it is judged that the rendition is the rendition and whether the subtone rendition is also judged (the rendition has not changed) even at this time. If the rendition style judged at the current judgment timing (first timing) and the rendition style judged at the previous judgment timing (second timing) have not changed, the judgment result at step SB11 is "NO". Then, this process ends.

On the other hand, in the output distribution (histogram) of the pad data PD1 to PD12 acquired in step SB1 with respect to the comparison reference stored in step SB6, “increased number of peaks (maximum value)”, “peak (maximum value)” Value increases on the left side” and “mountain (maximum value) increases on the right side”, the rendition style determined at the current determination timing (first timing) and the previous determination timing (first timing). Assuming that the type of rendition style judged at the timing 2) has changed, the judgment result of the above step SB11 becomes “YES”, and the process proceeds to step SB12.

In this way, when the current rendition style and the previous rendition style have been determined by referring to the rendition style determination table PDT, the process proceeds to step SB12, and the state variable state is updated in response to the state transition to the determined rendition style. That is, as in the above example, when the state transitions from the normal state Normal to the “subtone rendition style”, the state variable state is updated to the state Subtone, and this processing ends. When the state transitions from the normal state Normal to the “toning style”, the state variable state is updated to the state Tonguing, and this processing ends.

As described above, in the sensing pad processing, when the user (blower) holds the mouthpiece 6 with a normal performance method, the output distribution (histogram) of the pad data PD1 to PD12 generated at that time is used as a comparison reference, and newly added. How the output distribution (histogram) of the acquired pad data PD1 to PD12 has changed with respect to the comparison reference, that is, whether "the right side of the mountain has decreased" or "the left side of the mountain has increased". , The corresponding rendition style is discriminated from the rendition style discrimination table PDT according to the result of the judgment as to whether or not the “number of peaks (maximum value) changes from one to two”, and the state transitions to the judged rendition style.

As described above, in the present embodiment, the pad data PD1 to 1 representing the state (contact area) in which the tongue and lower lip of the user holding the mouthpiece 6 by the sensing pad 7 provided on the mouthpiece 6 contacts the lead. The PD12 is detected to acquire the way of playing by the user, and the way of playing acquired from the pad data PD1 to PD12 when a normal performance style is performed is stored as a comparison reference. Then, the special rendition style (subtone rendition style or tongue rendition style) is discriminated from the difference between the blowing style acquired from the new pad data PD1 to PD12 and the stored comparison reference, and the discriminated special rendition style (subtone rendition style or tongue rendition style). ), a beginner user can easily play subtones or tongs.

In addition, in the above-described embodiment, the sensing pad 7 for detecting contact by a known capacitance method is used, but instead of this, the sensing pad 7 for detecting contact and pressure is used, and the sensing pad 7 is used during playing. By detecting the contact area and contact pressure of the lower lip and generating a subtone according to the detected contact area and contact pressure of the lower lip, it is also possible to simulate the process of generating a subtone in an actual acoustic wind instrument. , By doing so, a more realistic subtone can be obtained.

In the above-described embodiment, it is determined whether the condition of the tongue rendition style or the condition of the subtone rendition style is satisfied based on the rendition style discrimination table PDT illustrated in FIG. 3B. However, the rendition style determination table PDT illustrated in FIG. For example, the condition of the tongue playing style is that the condition that "the number of peaks (maximum value) changes from one to two" is satisfied, and "the right side of the peak (maximum value) decreases" or "mountain (maximum value)". The condition of "increasing on the left side of" is satisfied. This is because it is possible that the number of peaks (maximum values) increases due to noise, so it is not only the condition that “the number of peaks (maximum values) has changed from one to two” but also “mountain (maximum values)”. It was decided to confirm the condition that “the right side of the value) decreases” or “the left side of the peak (maximum value) increases”, but the condition is not limited to this.

Although the embodiment of the present invention has been described above, the present invention is not limited thereto and is included in the invention described in the claims of the present application and its equivalent scope.

Hereinafter, each invention described in the claims at the time of the application of the present application will be additionally described.
(Appendix)
[Claim 1]
A detection process of detecting wind information indicating a wind state from a detection unit,
The rendition style discrimination processing for discriminating which rendition style among a plurality of rendition styles from the difference between the wind performance information detected from the detection section and the comparison reference information stored in the storage section,
A musical tone instruction process for instructing a sound source to generate a musical tone corresponding to a rendition style discriminated by the rendition style discrimination process,
A musical sound control apparatus having a processing unit for executing the following.

[Claim 2]
The processing unit further performs a storage process of storing the wind information detected by the detection unit in the storage unit as the comparison reference information when a normal rendition style is performed. The musical sound control device according to claim 1.

[Claim 3]
The detection unit includes a plurality of detection pads on the mouthpiece for detecting contact between the user's tongue and lower lip,
The musical sound control device according to claim 1 or 2, wherein the detection processing detects, as the detection information, a state in which the tongue and the lower lip are in contact with the mouthpiece as the wind information.

[Claim 4]
As the rendition style determination process, the processing section includes at least a subtone rendition style, a tongue rendition style, and the normal rendition style with respect to the comparison reference information stored in the storage section, the wind information being detected from the plurality of detection pads. 4. The musical tone control apparatus according to claim 3, wherein the musical tone control apparatus determines which one of the playing styles.

[Claim 5]
A detection unit for detecting wind information indicating the state of wind,
A sound source section that generates musical sounds,
A musical sound control device according to any one of claims 1 to 3,
An electronic musical instrument comprising:

[Claim 6]
Executed by the musical tone control device,
Detects wind information indicating the state of wind from the detector,
From the difference between the wind information detected by the detection unit and the comparison reference information stored in the storage unit, it is determined which one of the plurality of rendition styles,
A musical tone generation method characterized by instructing a sound source to generate a musical tone corresponding to a determined performance style.

[Claim 7]
In the computer installed in the tone control device,
A detection step of detecting wind information indicating the state of wind from the detection unit,
The rendition style determination step of determining which rendition style among a plurality of rendition styles from the difference between the wind performance information detected by the detection unit and the comparison reference information stored in the storage unit,
A musical tone instructing step for instructing a sound source to generate a musical tone corresponding to the rendition style discriminated by the rendition style discrimination step,
A program characterized by causing to execute.

1 Main Body 2 Pitch Key 3 Open End 4 Speaker 5 Operation Section 6 Mouthpiece 7 Sensing Pad 8 Breath Pressure Sensor 9 Input Section 10 A/D Converter 11 CPU
12 ROM
13 RAM
14 Sound source 15 Sound system 100 Electronic wind instrument

Claims (9)

A detection process of detecting wind information indicating a wind state from a detection unit,
A rendition style that determines which rendition style among a plurality of rendition styles including a first rendition style and a second rendition style different from the first rendition style is performed based on the wind performance information detected by the detection unit. Discrimination processing,
A storage process of storing the blowing information said has been detected by the detection unit when the first rendition by the rendition style determination processing is determine by to have been made in the storage unit as the comparison reference information,
A musical tone instruction process for instructing a sound source to generate a musical tone corresponding to a rendition style discriminated by the rendition style discrimination process,
Has a processing unit for executing
The style-of-rendition Determination process, a blowing information detected from the detection unit, the difference between the comparison reference information stored in the storage unit, one of the rendition style among the plurality of style-of-rendition is made A musical tone control device that discriminates. The first playing style is a normal playing style,
The musical tone control device according to claim 1, wherein the second rendition style is a special rendition style different from the normal rendition style including a tongue rendition style or a subtone rendition style. The detection unit, a plurality of detection pads for detecting the contact of the user's lip is arranged in a specific direction,
The detection processing detects a distribution state in the specific direction of detection values detected by each of the plurality of detection pads as the wind information,
The style-of-rendition Determination process, and the distribution state indicated by the blowing information detected from the detection unit, the difference between the distribution indicated by the comparison reference information stored in the storage unit, the plurality of rendition The musical sound control device according to claim 1 or 2, which determines which one of the rendition styles has been performed. The style-of-rendition Determination process, as the difference between the distribution indicated by the distribution and the comparison reference information the blowing information indicates that, first a number of differences in the maximum value of the distribution of the detected values in the specific direction 1 Difference, a second difference that is a difference in the detected value in the first direction with respect to the maximum value, and a second difference that is a difference in the detected value in the second direction opposite to the first direction with respect to the maximum value. 4. The musical sound control device according to claim 3, wherein which of the plurality of rendition styles is performed is determined based on at least one of the three differences. The style-of-rendition Determination process, wherein the first difference and the second difference according to the combination of the second difference, normal playing, tonguing rendition style, a plurality of rendition style including at least one of subtone playing 5. The musical sound control device according to claim 4, which discriminates which one has been performed. The detection unit includes a plurality of detection pads on the mouthpiece for detecting contact between the user's tongue and lower lip,
The musical sound control device according to claim 1, wherein the detection process detects, as the wind information, a state in which the tongue and the lower lip are in contact with the mouthpiece, as the detection process. A detection unit for detecting wind information indicating the state of wind,
A sound source section that generates musical sounds,
A musical sound control device according to any one of claims 1 to 6,
An electronic musical instrument comprising: The tone control device
A detection process of detecting wind information indicating a wind state from a detection unit,
A rendition style that determines which rendition style among a plurality of rendition styles including a first rendition style and a second rendition style different from the first rendition style is performed based on the wind performance information detected by the detection unit. Discrimination processing,
A storage process of storing the blowing information said has been detected by the detection unit when the first rendition by the rendition style determination processing is determine by to have been made in the storage unit as the comparison reference information,
A musical tone instruction process for instructing a sound source to generate a musical tone corresponding to a rendition style discriminated by the rendition style discrimination process,
Run
The style-of-rendition Determination process, a blowing information detected from the detection unit, the difference between the comparison reference information stored in the storage unit, one of the rendition style among the plurality of style-of-rendition is made To judge,
A musical tone generating method characterized by the above. On the computer,
A detection process of detecting wind information indicating a wind state from a detection unit,
A rendition style that determines which rendition style among a plurality of rendition styles including a first rendition style and a second rendition style different from the first rendition style is performed based on the wind performance information detected by the detection unit. Discrimination processing,
A storage process of storing the blowing information said has been detected by the detection unit when the first rendition by the rendition style determination processing is determine by to have been made in the storage unit as the comparison reference information,
A musical tone instruction process for instructing a sound source to generate a musical tone corresponding to a rendition style discriminated by the rendition style discrimination process,
Run
The style-of-rendition Determination process, a blowing information detected from the detection unit, the difference between the comparison reference information stored in the storage unit, one of the rendition style among the plurality of style-of-rendition is made To judge,
A program characterized by that.

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