JP2007264058A - Electronic musical instrument - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic musical instrument that can evaluate a deviation between the timing of playing operation and the timing of automatic playing or a click sound, and enables reference widths on which the evaluation is based to easily be set according to a practice result. <P>SOLUTION: A following section UHA are provided as the reference widths before the timing (arrow) of the click sound and aftera precedent section MHA, and the setting of the width is varied. When a hit is made in timing within the precedent section MHA or following section, a hit sound is generated, and when not, no hit sound is generated. The width of the precedent section MHA is varied according to the number of hits within the precedent section MHA among 100 hits and the width of the following section UHA is varied according to the number of hits within the following section UHA. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an electronic musical instrument suitable for practicing performance operation timing by performing a performance operation in accordance with a click sound generation for generating a click sound or automatic performance.

  Conventionally, there are electronic musical instruments that support performance practice or lessons. For example, an electronic musical instrument disclosed in Japanese Patent Application Laid-Open No. 06-0667653 (Patent Document 1) changes an effect added to a melody sound according to correctness of a key pressing operation performed in accordance with an automatic accompaniment or a melody guide. . Japanese Patent Application Laid-Open No. 2000-288254 (Patent Document 2) displays on the display screen the timing for performing, and the time difference (deviation) between the timing input from the electronic guitar and the timing indicated on the display. ) Is calculated at each performance timing, and this time difference is displayed on the display screen at each performance timing.

  Japanese Patent Application Laid-Open No. 2005-21655 (Patent Document 3) relates to an electronic percussion instrument, in which an indication object is displayed on a television monitor at intervals that match the rhythm of music, and the timing at which the indication object is indicated by the player. By hitting the head with, it is possible to produce a sound that matches the music.

Further, in an electronic percussion instrument, a user (performer) selects and sets an allowable range of deviation with respect to the timing of the automatic accompaniment and click sound, and the timing at which the performer strikes the timing of the click sound is within the allowable range of deviation. If there is, there is one that evaluates and displays the deviation.
Japanese Patent Application Laid-Open No. 06-066763 JP 2000-288254 A Japanese Patent Laid-Open No. 2005-21655

  For example, in an electronic percussion instrument such as that described above, it is necessary for the user to set a tolerance for deviation, so if the user's tone or ability increases or falls during practice, the width set for the device will be practiced. As a result, it sometimes became unsuitable. In this case, the user self-evaluates his / her ability and re-selects the setting as appropriate. It was difficult to make accurate settings to grasp my condition. Also, since the performance was interrupted and thought, the tone changed at that time, and the new settings sometimes did not match.

  The present invention has been made in view of the above-described problems, and the performer can perform appropriate installation without performing self-evaluation of performance operation timing, grasping or thinking about his / her state. The task is to be able to practice appropriately at any time.

  The electronic musical instrument according to claim 1 notifies the timing to perform, receives a performance operation, detects a temporal shift amount between the timing of the performance operation and the timing to perform, and analyzes a plurality of shift amounts. Specify its width. Further, the sound generation process control means controls the sound generation process according to the detected amount of deviation, and sets a reference width as a reference for the sound generation process control based on the specified width. Then, the sound generation control is changed depending on whether or not the performance operation is such that the detected deviation amount is within the reference range. The reference width may be set automatically, or may be set by a player operating an operator or the like. The “deviation amount” is a concept including a case where the deviation is “0”, and the “reference width setting” is a concept including both a case where the reference width is changed and a case where the reference width is not changed.

  An electronic musical instrument according to a second aspect is the electronic musical instrument according to the first aspect, wherein the reference width in the sound generation processing control means is automatically set.

  An electronic musical instrument according to a third aspect is the electronic musical instrument according to the first or second aspect, wherein the evaluation result for the deviation amount is displayed on the display means based on the detected deviation amount. For example, the evaluation may be an average of a plurality of deviation amounts in the past, a deviation amount per performance operation itself, a standard deviation of a plurality of deviation amounts, or the like.

  The electronic musical instrument according to claim 1 as a preferred example 1 may be an electronic musical instrument characterized in that the sound generation control by the sound generation processing control means controls whether or not to sound. For example, a sound is generated if the timing of the performance operation is within the reference width, and no sound is generated if the timing is outside the reference width. Whether the timing of the performance operation is within the reference width or outside the reference width can be easily determined depending on whether the sound is generated or not during the performance operation.

  A preferred example 2 is the electronic musical instrument according to claim 1, wherein the sound generation control by the sound generation processing control means is performed by changing the tone color and volume. For example, if the timing of the performance operation is within the reference range, it will sound with a normal tone (or normal volume) corresponding to the performance operation, and if it is outside the reference range, it will sound with a different tone (or low volume) To do. It is possible to easily determine whether the timing of the performance operation is within the reference width or out of the reference width.

  A preferred example 3 is the electronic musical instrument according to claim 2, wherein the width setting means automatically sets the reference width in response to a predetermined number of performance operations. Since the reference width is set for each predetermined number of performance operations, the practice results are regularly evaluated, and stable practice can be performed.

  A preferred example 4 is the electronic musical instrument according to claim 1 or 2 or any one of the above examples 2 or 3, further comprising a striking pad that receives the performance operation by striking, and is detected by the timing shift detecting means. An electronic musical instrument characterized in that, based on the amount of deviation, an evaluation result for the amount of deviation is displayed by causing the hitting pad to emit light. While practicing drums, you can intuitively check the evaluation results by emitting light from the striking pad.

  As a preferred example 5, the electronic musical instrument according to any one of claims 1 to 3 or the first to fourth examples, wherein the electronic musical instrument is a percussion instrument type provided with a striking pad that receives the performance operation by striking. A characteristic electronic musical instrument may be used. This allows you to practice drums.

  A preferred example 6 is the electronic musical instrument according to any one of claims 1 to 3 or the first to fifth examples, wherein the timing notification means performs a click sound and / or automatic sound generation process. An electronic musical instrument characterized by notifying the timing to be used may also be used. With simple click pronunciation, you can practice simple performance operation timing, or you can practice performance operation timing according to the music of automatic performance.

  A preferred example 7 is the electronic musical instrument according to any one of claims 1 to 3 or the first to fifth examples, wherein the reference width setting means is independently set before and after the timing to be played. An electronic musical instrument characterized by setting a width may also be used. Since the reference width is set independently before and after the timing to perform, in the timing of the performance operation. Even if there is a strong tendency to be biased forward or backward with respect to the timing to be played, by setting the widths of the early timing and late timing appropriately, a more appropriate practice function that matches the player's ability is obtained be able to.

  According to the electronic musical instrument of the first aspect, a temporal shift amount between the timing to be played and the timing of the performance operation is automatically detected, and the reference width is automatically set based on the width analyzed from the plurality of shift amounts. As a result, it is possible for the performer to perform appropriate installation at any time without having to self-evaluate the timing of performance operations, or to grasp or think about his / her state. .

  According to the electronic musical instrument of the second aspect, in addition to the effect of the first aspect, since the reference width is automatically set, the player does not need to perform a setting operation or the like, and continues to practice without interrupting the performance. Can practice while maintaining a certain tone during performance.

  According to the electronic musical instrument of claim 3, in addition to the effect of claim 1 or 2, the performer can easily confirm the evaluation result.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the hardware configuration of an electronic musical instrument according to an embodiment of the present invention. The electronic musical instrument of this embodiment is an electronic percussion instrument (electronic drum) having a plurality of percussion pads. The CPU 1 controls the entire electronic musical instrument using the working area of the RAM 3 based on the control program stored in the ROM 2. The timer 4 is a circuit that generates a clock signal that defines the performance timing of the automatic performance processing and a clock signal that defines the timing of the click sound.

  Each of the operation elements A51, B52,... Is a striking pad, and includes a sensor for detecting operation strength (strength of striking) and a sensor for detecting operation position (striking position on the pad surface). Detection signals from these operators A51, B52,... Are detected by the performance operator interface 5. As a basic function of a normal electronic percussion instrument, the CPU 1 detects a striking operation at the operation element A51, operation element B52,.

  Further, the CPU 1 detects an operation event of the setting operator (switch or the like) 6 and performs processing according to various operations. Further, the CPU 1 controls display on a display device 7 (display means) such as a liquid crystal panel display. Various setting information of the main body is displayed on the display device 7, and a support guide is provided when the user selects and sets various functions of the electronic percussion instrument by the setting operator 6. For example, it is possible to set timbres and effects, accompaniment for automatic performance, and music settings. Note that the automatic performance data is also referred to as “song” from the viewpoint of the user grasping the automatic performance data as a song. In addition, it is possible to set (change) the tempo for automatic performance, the tempo for click sound, and the note length for click sound. Further, as will be described later, the display device 7 displays the timing of actual batting operation in the batting operation practice mode and the batting position on the pad surface of the manipulator A, manipulator B,.

  The light emitting device 8 is a light emitting element such as an LED disposed around the pad surface of the operation element A51, operation element B52,..., And emits an LED corresponding to the operation element subjected to the striking operation. This light emission amount is set according to the strength of the hitting, or it is made to emit light or not according to the evaluation result for the hitting operation.

  The sound source 9 generates a hitting sound or a musical sound signal for automatic performance according to various data set from the CPU 1 by a hitting performance or an automatic performance, and this musical sound signal is output to the sound system 10 for the sound system. Reference numeral 10 performs D / A conversion, amplification, etc., and produces sound on the speaker. The storage device 11 is a hard disk or the like and stores automatic performance data. Note that tone color data, pattern data, effect data, and other programs may be stored.

  Next, the operation and process in the practice mode in which the operator A51, the operator B52,... FIG. 2 is a diagram for explaining the relationship between the flow of automatic performance, the timing of the click sound, and the “reference width”, where the horizontal axis corresponds to the time axis. In the example shown in the figure, the beat of the music is assumed to be four quarters. The vertical arrows in FIG. 2 indicate the click sound generation timing, which is the timing to be played. a. Indicates the flow of automatic performance (automatic accompaniment), and when the drum practice mode is selected in accordance with the automatic performance, the timing for performance is set based on the bar start of the automatic performance. b. Indicates the case where the click sound is generated at the timing when one measure is divided into four equal parts (when the note length of the click sound is a quarter note). C. Indicates a case where the click sound is generated at the timing when one measure is divided into eight equal parts (when the note length of the click sound is an eighth note).

  The balloon portion (enlarged view) of the two-dot chain line in FIG. 2 indicates the “reference width”, and the previous section MHA is set before the click sound timing, and the rear section UHA is set after the click sound timing. ing. The previous section MHA and the rear section UHA are the “reference width” in the embodiment. When the timing of the actual hitting operation is within the previous section MHA or the rear section UHA, a striking sound is generated. If the timing of the actual hitting operation is the same (simultaneous) as the timing of the click sound, the hitting sound is naturally pronounced. When the timing of the hit operation is within the previous section MHA or within the subsequent section UHA, the same timing as the click sound is referred to as “appropriate timing”. Insensitive sections NG and NG are provided before the preceding section MHA and behind the succeeding section UHA, respectively. When the timing of the hit operation is within the insensitive sections NG and NG, no hitting sound is generated. A case where the timing of the hit operation is within the insensitive zone NG, NG is referred to as “inappropriate timing”.

  Further, in this embodiment, there is a case where a sound is generated even when the timing is not appropriate. Neutral sections Neu and Neu are provided before and after the insensitive section NG. When the hit timing is within the neutral sections Neu and Neu, a striking sound is generated. This is because, for example, in the middle of a continuous click sound, when the player intentionally performs a hitting operation, that is, not only hitting according to the click sound alone, but also the natural hitting operation of the player can be generated. It is for doing so.

  In this way, the click sound is pronounced at the proper timing, and not sounded at the inappropriate timing, so if the performance improves, the number of pronunciations increases. The degree of progress can be judged while grasping to some extent. However, if you improve to some extent, it may always be the right time, and it is difficult to practice to improve further. Therefore, the reference width is changed.

  The following processing and counting are performed for the batting operation at timings other than the neutral section Neu. When the batting operation is performed, the deviation amount (time difference) from the timing of the click sound at the timing of the batting operation is sequentially sampled while counting the number of operations. When a predetermined number of hitting operations (for example, 100 times) are performed, the sampled shift amount is analyzed, and the width of the previous section MHA or the rear section UHA (the width from the click sound) is changed according to the analysis result. To do. That is, as shown in the enlarged view of FIG. 2, the line before the previous section MHA or the line after the rear section UHA is moved.

  FIG. 3 is a diagram illustrating an example of a section width (time width) in which the previous section MHA and the rear section UHA are changed, and each section width is different in seven levels 1-7. The numerical value of the section width is described for convenience in order to express the size of the width, and can be read as a value for a predetermined unit time. The section width increases from level 1 to level 7, and level 4 is an intermediate level on average. Then, the number of hits is counted in each of the preceding section MHA or the following section UHA, and the level is increased to the level 1 side as the number of hits increases. Further, the level is lowered to the level 7 side as the number of times is small.

  That is, if the number of hits in the preceding section MHA is large and the number of hits in the subsequent section UHA is small, the timing of the hitting tends to be earlier, so the section width of the previous section MHA is narrowed and the section width of the rear section UHA is widened. . As the early tendency is improved, the number of pronunciations increases. Conversely, if the number of hits in the previous section MHA is small and the number of hits in the rear section UHA is large, the tendency is delayed, so the section width of the previous section MHA is widened and the section width of the rear section UHA is narrowed. As the tendency to lag is improved, the number of pronunciations increases. In the following description, a section that does not include the intermediate section Neu before the timing of the click sound (a section that combines the previous section MHA and the previous insensitive section NG) is referred to as a “previous region”, and the click sound timing. A section that does not include the intermediate section Neu later (a section that combines the subsequent section UHA and the subsequent insensitive section NG) is referred to as a “rear area”.

  FIG. 4 is a diagram showing a display example on the display device 7 in the practice mode. In the lower half of the display screen 71, the analysis results such as the overall average of the deviation amount, the current number of hits, the total number of times, the previous average, the rear average, the standard deviation, the hit position, the hitting force and the average are displayed as numerical values. . In the upper half of the display screen 71, a striking pad illustration 7a is displayed on the left side, a striking appropriate range mark 7b is displayed therein, and a striking position 7c with respect to the striking pad is further displayed graphically. In the center of the upper half, a time axis 7d, a click sound position mark 7e consisting of a straight line intersecting with the time axis 7d, and an impact timing mark 7f indicating the actual impact timing are displayed. Further, a level bar 7g indicating the hitting strength is displayed at the right end of the display screen 71, and an intensity mark 7h indicating the actual hitting strength is displayed beside the level bar 7g. An appropriate mark 7i indicating an appropriate intensity range is displayed in the level bar 7g. The hit timing mark 7f moves left and right (front and back in time) with respect to the click sound position mark 7e in accordance with the hit timing. Further, the strength mark 7h moves up and down along the level bar 7g according to the impact strength. Therefore, the player can confirm the hitting position, hitting timing, and hitting intensity on the display.

  Next, the operation of the embodiment will be described based on a flowchart. 5 is a flowchart of the main process, FIG. 6 is a flowchart of the interrupt process, FIG. 7 is a panel setting process, FIG. 8 is a performance process, FIG. 9 is a timing analysis process, and FIG. 10 is a section. It is a flowchart of a width automatic change process. As will be understood from the following description and flowcharts, the programs shown in the flowcharts and the functions obtained by causing the CPU 1 to execute the programs are the “timing deviation detecting means”, “deviation width specifying means”, and “sound processing control” in the claims. Means "and" reference width setting means ". In the following description and flowchart, each register and flag used for control are represented by the following label, and each register or flag and their stored contents are represented by the same label unless otherwise specified.

EF: A performance flag for controlling automatic performance. EF = 1 indicates a state after an automatic performance start instruction, and EF = 0 indicates a state after an automatic performance stop instruction.
TA: a flag for controlling the automatic setting of the reference width. TA = 1 indicates a state of the automatic setting mode (the impact timing is also evaluated), and TA = 0 indicates a state of not being the automatic setting mode.
TM: A flag for controlling the manual setting of the reference width, and indicates a state of the manual setting mode when TM = 1 (the impact timing is also evaluated) and a state of not being the manual setting mode when TM = 0.
A: A register that counts hits outside the intermediate section Neu ZUR: A register that stores a shift amount GOU: A register that stores a total value of the shift amount HEI: A register that stores an average value of the shift amount MGOU: A blow in the previous area Register UGOU for storing the total value of the amount of deviation in the rear region: Register MHKT for storing the total value of the amount of displacement in the rear region MHKT: Register for storing the number of times of impact in the previous region UHKT: Number of times of impact in the rear region Register MHK for storing a numerical value: Register for storing the number of times of hitting in the previous section UHK: Register for storing the number of times of hitting in the subsequent section MHEI: Register storing an average value of the deviation amount of hitting in the previous area UHEI: Register that stores the average value of the amount of displacement in the rear area

  The “main process” in FIG. 5 is started by turning on the power of the electronic percussion instrument. First, in step S1, initialization processing such as resetting a flag and a register is performed, and then panel setting processing (FIG. 7) in step S2 and step The performance process of S3 (FIG. 8) is repeated while the power is on. In the panel setting process, a corresponding process is performed in response to an operation of the setting operator 6 to set a device. In the performance processing, the player's hitting is detected and sound generation processing is performed, the situation is notified to the player in the practice mode, and the performance sound and click sound of the automatic performance are generated.

  The “interrupt process” in FIG. 6 is executed by a predetermined interrupt signal in parallel with other processes such as the main process. In step S4, it is determined whether or not the automatic performance is on based on the performance flag EF. In step S5, it is determined whether or not the click sound generation function is on. If is ON, the tempo value being set in step S6 (the tempo value set in the automatic performance data or the tempo value set by the performer) is acquired, and the time is measured from the timer in step S7 and the current value is obtained. Is determined, timing data is generated in step S8, and the process returns to the original routine. The data measured here is used to determine the timing for advancing automatic performance, the generation timing of a click sound, the timing of hitting, and the like.

  In the “panel setting process” in FIG. 7 (S2 in FIG. 5), in step S11, it is determined whether or not there is an input operation in the setting operator 6. If there is no input operation, the process returns to the original routine. In steps S12 and S24, the type of input operation is determined, and processing corresponding to the input operation is performed.

  If it is a setting operation related to automatic performance in step S12, the processing in steps S13 to S23 is performed, and the process returns to the original routine. If it is an instruction to start automatic performance in step S13, the performance flag EF is set to "1" (S14), and if it is an instruction to end automatic performance in step S15, the performance flag EF is set to "0" (S16). . If it is an instruction relating to song setting in step S17, acceptance of song selection and song setting (automatic performance data setting) are performed (S18, S19). If it is a tempo setting instruction in step S20, tempo value reception and tempo setting are performed (S21, S22). If it is another operation, another instruction is executed in step S23.

  If the setting is related to the practice mode in step S24, the selection of the practice mode is accepted in step S25, and it is determined in step S26 whether the automatic setting mode is selected for the reference width setting. The practice flag TA is set to “1” (S27). If the automatic setting mode is not selected, it is determined in step S28 whether the automatic setting mode is cancelled. If the automatic setting mode is canceled, the practice flag TA is set to "0" (S29). Next, in step S30, it is determined whether the manual setting mode is selected for setting the reference width. If the manual setting mode is selected, the section width is accepted and the section width is set, and the practice flag TM is set to “1”. To "" (S31, S32). If the manual setting mode is not selected, it is determined in step S33 whether the manual setting mode is cancelled. If the manual setting mode is canceled, the practice flag TM is set to "0" (S34).

  In step S35, other practice mode setting processing is performed. In this other practice mode setting process, for example, the following process can be set. It is a practice mode for the hitting position, and processing is performed to detect the range of hitting from the center of the hitting pad, and this hitting position range is automatically expanded or narrowed in the practice mode. In addition, when the batting intensity mode is set, it is detected whether the batting force is hitting within a certain range without being too strong and not too weak, and the width (width of the batting force) is automatically adjusted. it can. In step S36, settings relating to other processing such as timbre setting, effect setting, volume setting and the like are performed, and the process returns to the original routine.

  In the “performance control process” in FIG. 8 (S3 in FIG. 5), it is determined whether or not the performance flag EF = 1 in step S41, whether or not there is a hit is determined in step S46, and if the performance flag EF = 1, step S42. Processes related to musical tone generation are performed in .about.S45, and if there is a hit, processes corresponding to the hit are executed in steps S47 to S59.

  In step S42, the set automatic performance data is read out, timing data is acquired in step S43, and if there is data to be sounded at the current timing in step S44, musical tone generation processing is performed in step S45. This musical tone generation generates a musical tone of a song (or accompaniment) based on performance data, and if the click sound is generated, the click sound is also generated at the same time.

  In the processing corresponding to the hit, in steps S47 and S48, the hit position and hit strength are detected based on the sensor in the hit pad, and it is determined whether or not the performance flag EF = 1 in step S49. If it is not EF = 1, it is a normal batting performance that is not being performed automatically (not in the practice mode). Therefore, in step S59, sound generation processing is performed according to the batting state, and the original routine is restored. If EF = 1, timing data is acquired in step S50, and it is determined in step S51 whether “TM = 1 or TA = 1”. If neither TM = 1 nor TA = 1, neither the evaluation of the impact timing nor the automatic setting of the reference width is performed, and the process proceeds to step S55. If either TM = 1 or TA = 1, the “analysis process at timing” of FIG. 9 is performed in step S52, and the process proceeds to step S53. In step S53, it is determined whether or not the condition of “TA = 1 and not subject” is satisfied. If TA = 0 or not subject, it is not in the automatic setting mode or subject, so the process proceeds directly to step S55. If “TA = 1 and not applicable”, it is an evaluation target in the automatic setting mode, so the section width automatic change process of FIG. 10 is performed in step S54 and the process proceeds to step S55.

  In step S55, other practice mode processing is performed. In this process, for example, if a hitting position evaluation mode for the hitting pad is set, the evaluation is performed, and it is decided whether or not to sound depending on the evaluation, and the limitation of the area of the hitting area is widened or narrowed. Control. Further, if the impact strength evaluation mode is set, it is evaluated whether the strength is within a certain range, and it is determined whether or not to pronounce. Further, a setting for widening or narrowing the certain range may be automatically performed.

  Next, in step S56, display data is displayed on the display device 7 based on the data obtained from the analysis result for the batting operation, and the process proceeds to step S57. In step S57, it is determined whether or not there is an off sound generation flag. This sound generation flag is a flag that is turned off when the timing of hitting is within the dead zone NG, a flag that is turned off when the hitting position with respect to the hitting pad is outside the hitting area, and the hitting strength is outside a certain range This flag is turned off when If any one of these sound generation flags is OFF, the process returns to the original routine without performing the sound generation process in step S59. If none of the sound generation flags are off, the light emitting device 8 emits light in step S58, and sound generation processing is performed in accordance with the striking state in step S59, and the process returns to the original routine. Note that these sound generation flags are determined depending on which function is used in the practice mode. For example, in the case of a mode in which only the timing of hitting is analyzed in relation to the present invention, only the sounding flag that is turned off when the timing of hitting is within the dead zone is used. The sound generation flag is turned on / off in the “analysis process at timing” of FIG. 9 corresponding to step S52, as will be described next.

  In the “analysis process at timing” in FIG. 9 (S52 in FIG. 8), the temporal position of the timing at which the hit was made is specified in step S61, and in step S62, the timing is shifted from the click sound timing. Calculate the amount. Next, in step S63, data of the current reference width is acquired, and it is determined whether or not the timing at which the hit has occurred is within the reference width. In addition, it is determined whether or not it is out of the target (in the intermediate section Neu). In step S64, it is determined whether the hit timing is within the reference width or not, and if it is within or outside the reference width, the sound generation flag is turned on in step S65 to return to the original routine. . If the timing of hitting is neither within the reference width nor outside the target range (within the dead zone NG), the sound generation flag is turned off in step S66 and the process returns to the original routine.

  The “section width automatic setting process” (S54 in FIG. 8) in FIG. 10 is a process (see S53) in the automatic setting mode (TA = 1) and not in the target (outside the intermediate section Neu). First, in step S71, the number of times A is increased by 1, and in step S72, a timing deviation amount ZUR is acquired. Here, the timing value is larger in the later time than before, and the deviation amount ZUR is a value obtained by subtracting the timing of the click sound from the timing of the hit. That is, the deviation amount ZUR is a negative value if the hit is earlier than the click sound (in the front area) and a positive value if it is late (in the rear area), and this sign determines whether the hit is the front cool air or the rear area as will be described later. To do. In step S73, a total value GOU of the deviation amounts ZUR is calculated, and in step S74, an average value HEI of the deviation amounts is calculated by GOU / A.

  Next, the sign of the deviation amount ZUR is determined in step S75, and if it is negative (or 0), it is a hit in the previous area. Therefore, in steps S76, S77 and S78, the total deviation amount MGOU in the previous area. , The number of hits MHKT in the previous region, and the average value MHEI of the deviation amount in the previous region are calculated. In step S79, it is determined whether the hit is in the previous section. If the hit is in the previous section, the number-of-strokes value MHK in the previous section is calculated in step S80.

  If the displacement amount ZUR is positive in step S75, the impact is in the rear region. Therefore, in steps S81, S82, and S83, the total amount UGOU of the displacement amount in the rear region is calculated, and the number of hits UHKT in the rear region. Then, the average value UHEI of the deviation amount in the rear region is calculated. In step S84, it is determined whether the hit is in the rear section. If the hit is in the rear section, the number-of-strokes value MHK in the rear section is calculated in step S85.

  Next, a standard deviation is obtained in step S86. This standard deviation is a standard deviation for all samples of the deviation amount in the front region and the rear region, and this standard deviation can show the variation degree and the unity degree of the deviation amount. Next, in step S87, it is determined whether A> 100. If A> 100, the number of hits does not exceed 100. In step S105, the timing deviation amount, the previous stage, the rear stage, and the whole Data output such as average, front average, back average, number of accumulation, standard deviation, etc. is performed. If A> 100, the number of hits has exceeded 100. Therefore, the reference width is updated (automatically set) in step S888 and subsequent steps.

  In steps S88 to S91, the number of strikes MHK in the previous section is determined, and in step S92 to S95, the section width of the previous section is set. In this example, if the number of hits exceeds “90”, the level is increased by two steps, if it exceeds “70”, the level is increased by one step, and if it is less than “50”, the level is decreased by one step and less than “30”. If so, lower the level by two levels.

  Similarly, the number of hits UHK in the subsequent section is determined in steps S96 to S999, and the section width of the subsequent section is set in steps S100 to S103. In this example, if the number of hits exceeds “90”, the level is increased by two steps, if it exceeds “70”, the level is increased by one step, and if it is less than “50”, the level is decreased by one step and less than “30”. If so, lower the level by two levels.

  Next, a calculation formula and a register are initialized in step S104, and data is output in step S105. In the data output in step S105, in the case of the route from S88 to S104, the previous stage and the rear stage are displayed, and the other data remains the previously displayed data up to 100 hits.

  According to the above processing, if the amount of deviation between the timing of the click sound and the timing of the hitting operation is within the reference width, the hitting sound is generated, and if the amount of deviation is outside the reference width, the hitting sound is not generated. That is, the player is notified of the situation of the deviation of the hit. In addition, the previous evaluation of this hit can be confirmed by display. Further, when the strike is performed a predetermined number of times (100 times in this example), the reference width is automatically set and changed by the evaluation so far.

  In addition, since the front section and the rear section can be set independently, if the tendency to hit early is strong with respect to the timing to be hit, the width of the rear section is not so narrow, Since the width is set to be narrow, the practice effect at this early timing can be improved. In addition, when the tendency to hit late is strong, similarly, the previous section is not narrowed and the rear section is narrowed, and the practice effect at a late timing can be improved.

  In the embodiment, the number of hits within the reference width is determined based on the result of analysis for a plurality of shift amounts, and the number of hits within the reference width is determined by the number of hits within this reference width. The amount of change in the reference width may be determined based on the evaluation result.

  In the embodiment, the number of hits is automatically set when it exceeds 100 (predetermined number), but the predetermined number may not be 100. In addition, although a predetermined number is automatically set, a simple operation such as a player's switch operation may be automatically set as a trigger.

  In the embodiment, when the timing of hitting is within the reference width, a striking sound is generated, and when it falls outside the reference width, the striking sound is not sounded, but when it is within the reference width, it is a normal striking sound, If it is off, it may be pronounced with a different tone.

  In the embodiment, the electronic percussion instrument has been described as an example. However, it goes without saying that the present invention can be applied to other musical instruments that evaluate the amount of deviation in timing of performance operations.

It is a hardware block diagram of the electronic musical instrument of the embodiment of the present invention. It is a figure explaining the relationship between the flow of automatic performance in an embodiment, the timing of a click sound, and a reference width. It is a figure which shows the example of the area width changed of the front area and the back area in embodiment. It is a figure which shows the example of a display at the time of practice mode in embodiment. It is a principal part flowchart of the main process in embodiment. It is a flowchart of the interruption process in an embodiment. It is a flowchart of the panel setting process in an embodiment. It is a flowchart of the performance process in embodiment. It is a flowchart of the analysis process in embodiment. It is a flowchart of the section width automatic change process in an embodiment.

Explanation of symbols

  1 ... CPU, 51 ... operator A, 52 ... operator B, 7 ... display device (display means)

Claims (3)

Performance timing notifying means for notifying the timing to perform,
Timing deviation detection means for receiving a performance operation and detecting a temporal deviation between the timing of the performance operation and the timing to be performed;
Analyzing a plurality of deviation amounts detected by the timing deviation detecting means, and specifying a width, a deviation width specifying means;
Sound generation processing control means for controlling sound generation processing in accordance with the amount of deviation detected by the timing shift detection means;
A reference width setting means for setting a reference width as a reference for control of sound generation processing in the sound generation processing control means based on the width specified by the deviation width specifying means;
With
The electronic musical instrument characterized in that the sound generation processing control means changes sound generation control depending on whether or not the amount of deviation detected by the timing deviation detection means falls within the reference range. The electronic musical instrument according to claim 1,
The electronic musical instrument characterized in that the width setting means automatically sets the reference width. The electronic musical instrument according to claim 1 or 2,
An electronic musical instrument characterized in that an evaluation result for the deviation amount is displayed on a display means based on the deviation amount detected by the timing deviation detection means.

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