JP3964541B2 - 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 with an improved storage method for storing performance information.
[0002]
BACKGROUND OF THE INVENTION
Generally, musical tone waveform data is assigned to each of a plurality of operators called “pads”, and the musical tone waveform data assigned to the operated pad is read according to the operation of the pad, and the pad An electronic musical instrument in which information indicating that the instrument has been operated is stored as performance information for automatic performance, and the corresponding musical sound waveform data can be read out by reproducing the stored performance information, Proposed by the applicant.
[0003]
In such an electronic musical instrument, the following two types of reading modes can be arbitrarily selected as reading modes of musical sound waveform data.
[0004]
(1) First reading mode
The reading of the musical sound waveform data is started, and when the reading of the musical sound waveform data is completed to the end, the reading is stopped as it is.
[0005]
(2) Second reading mode
When reading of the musical tone waveform data is started and reading to the end of the musical tone waveform data is completed, the musical tone waveform data is repeatedly read by returning to the head of the musical tone waveform data until the operation of the pad is released.
[0006]
Note that repeated reading of certain musical sound waveform data is referred to as “loop reading”, and each repetition at the time of loop reading is referred to as “loop”.
[0007]
By the way, as a storage method when storing the information corresponding to the musical sound waveform data read according to the operation of the pad as described above as performance information for automatic performance, a musical sound corresponding to the operated pad is used. There has been proposed a method of storing only two timings of waveform data readout start timing and readout stop timing.
[0008]
According to this method, even when loop reading is performed, only two timings of reading start timing and reading stop timing of musical sound waveform data are stored, and the start and end timings for each loop are stored. Is never remembered.
[0009]
For this reason, in the performance information stored using the above-described method, there is a possibility that editing such as “I want to delete the third loop” cannot be performed after the performance information is stored. Met.
[0010]
[Problems to be solved by the invention]
The present invention has been made in view of the above-described problems, and the object of the present invention is to store performance information separately for each loop, for example, to delete only a specific loop. It is intended to provide an electronic musical instrument that enables editing such as performing.
[0011]
[Means for Solving the Problems]
  In order to achieve the above object, the invention described in claim 1 of the present invention is:A musical sound waveform data storage means for storing musical sound waveform data having a read start position, a read stop position, and a loop read start position, an instruction means for instructing generation start and stop of the musical sound waveform data, and the musical sound waveform data Indicates thatPerformance information storage means for storing time-series performance information so as to be sequentially reproducible;The elapsed time from the generation start instruction timing of the musical sound waveform data by the instruction means to the generation stop instruction timing is longer than the generation time of the first section from the read start position of the musical sound waveform data to the read stop position. Sometimes, performance information indicating that the musical sound waveform data is generated for the generation time of the first section from the generation start instruction timing is stored in the performance information storage means, and after the generation start instruction timing The timing at which the loop readout start position is read each time the second section from the loop readout start position to the readout stop position of the musical sound waveform data is repeatedly generated with respect to the elapsed time from the time when the first section has elapsed. To indicate that the musical sound waveform data is generated only for the generation time of the second section. Repeating the performance information storage control means for storing in the performance information storage meansIt is made to have.
[0012]
  Therefore, according to the first aspect of the present invention, generation is started.InstructedStop generation from timingInstructedElapsed time to timingFrom the reading start position to the reading stop position of musical sound waveform dataWhen it is longer than the generation time of the first section, generation startsInstructedOnly the generation time of the first section from the timingMusic waveform dataPerformance information indicating that the performance information is to be generated is stored in the performance information storage means, and generation is started.InstructedAbout the elapsed time from the time when the first section after the timing has passed,From the loop reading start position to the reading stop position of musical sound waveform dataThe second leg ofGenerate repeatedlyEvery,Timing of reading the loop read start positionOnly the generation time of the second interval fromMusic waveform dataThe performance information indicating that it is generated is repeatedly stored in the performance information storage means.
[0013]
Note that the length of the first section and the length of the second section described above may coincide with each other.
[0014]
  Moreover, invention of Claim 2 among this invention is the following.Musical sound waveform data storage means for storing musical sound waveform data having a read start position, a read stop position, and a loop read start position;the aboveAn instruction means for instructing generation start and stop of generation of musical sound waveform data and generation of the musical sound waveform dataPerformance information storage means for storing time-series performance information so as to be sequentially reproducible, mode selection means for arbitrarily selecting one of a storage mode and a playback mode, and the performance information storage means Playback means for sequentially playing back time-series performance information;When the reproduction mode is selected by the mode selection means, a musical sound is generated by reading out musical sound waveform data based on the performance information reproduced by the reproduction means, and the storage mode is selected by the mode selection means. Sometimes, in response to the generation start instruction from the instruction means, the reading of the musical sound waveform data is started from the read start position, read to the read stop position, and then loop read from the loop read start position to the read stop position. When the storage mode is selected by the musical tone waveform data read control means for stopping reading in response to the generation stop instruction by the instruction means and the mode selection means, the timing of the generation start instruction by the instruction means , Reading start position of the above musical sound waveform data The performance information storage means stores performance information indicating that the musical sound waveform data is generated only for the generation time of the first interval from the first read stop position to the read stop position, and the read stop position from the loop read start position of the musical sound waveform data. Each time the second interval up to is repeatedly generated, the performance information storage means repeats performance information indicating that the musical sound waveform data is generated for the generation time of the second interval from the timing at which the loop read start position is read. Performance information storage control means for storingIt is made to have.
[0015]
  Therefore, according to the second aspect of the present invention, in the storage mode,Performance information indicating that the musical sound waveform data is generated for the generation time of the first section from the read start position of the musical sound waveform data to the read stop position from the generation start instruction timing by the instruction means is stored in the performance information storage means. In addition, every time the second section from the loop reading start position to the reading stop position of the musical sound waveform data is repeatedly generated, the musical sound waveform data is generated for the generation time of the second section from the timing at which the loop reading start position is read.The performance information indicating the generation is repeatedly stored in the performance information storage means.
[0016]
  Moreover, invention of Claim 3 among this invention is the following.Automatic performance data storage means for storing automatic performance data having a reproduction start position, a reproduction stop position, and a loop reproduction start position, instruction means for instructing reproduction start and reproduction stop of the automatic performance data, and the automatic performance data Indicates to playPerformance information storage means for storing time-series performance information so as to be sequentially reproducible, mode selection means for arbitrarily selecting one of a storage mode and a playback mode, and the performance information storage means Playback means for sequentially playing back time-series performance information;When the playback mode is selected by the mode selection means, a musical tone is generated by reading automatic performance data based on the performance information reproduced by the playback means, and the storage mode is selected by the mode selection means. Sometimes, in response to a playback start instruction from the instruction means, playback of the automatic performance data is started from the playback start position, played back to the playback start position, and then looped from the loop playback start position to the playback stop position. Automatic performance data reproduction control means for continuing reproduction and stopping reproduction in response to a reproduction stop instruction from the instruction means, and when a storage mode is selected by the mode selection means, timing of a reproduction start instruction by the instruction means To the first section from the playback start position to the playback stop position of the automatic performance data. Performance information indicating that the automatic performance data is reproduced only for a period of time is stored in the performance information storage means, and each time the second section from the loop reproduction start position to the reproduction stop position of the automatic performance data is reproduced repeatedly. Performance information storage control means for repeatedly storing performance information indicating that the automatic performance data is reproduced only for the playback time of the second section from the timing at which the loop playback start position is reproduced;It is made to have.
[0017]
  Therefore, according to the third aspect of the present invention, in the storage mode,The performance information storage means stores performance information indicating that the automatic performance data is reproduced for the reproduction time of the first section from the reproduction start position of the automatic performance data to the reproduction stop position from the timing of the reproduction start instruction by the instruction means. In addition, each time the second section from the loop playback start position to the playback stop position is repeatedly played back, the automatic performance data is played back for the duration of the second section from the timing at which the loop playback start position is played back.The performance information indicating the performance is repeatedly stored in the performance information storage means.
[0018]
  The invention according to claim 4 of the present invention is the invention according to any one of claims 1, 2, or 3 of the present invention, and is further stored in the performance information storage means. Editing information can be arbitrarily edited.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an example of an embodiment of an electronic musical instrument according to the present invention will be described in detail with reference to the accompanying drawings. In the electronic musical instrument according to the present invention, pads corresponding to musical sound waveform data for which loop reading is designated are described. As the performance information corresponding to the operation, the timing for stopping reading of the musical sound waveform data is stored at the time when reading to the end of the musical sound waveform data is completed, and the musical sound waveform is stored immediately after storing the timing of the reading stop. The data read start timing is stored, so that the read start timing and read stop timing are stored as performance information separately for each loop. Therefore, according to the electronic musical instrument of the present invention, for example, in the case of storing a loop read that loops three times, performance information as shown in FIG. 1 is created.
[0020]
In FIG. 1, it is shown that there is a lapse of time from the stop of reading to the start of reading. However, this is shown in this way for easy understanding, and actually stops reading. And read start are at the same timing.
[0021]
FIG. 2 is a block diagram showing the overall structure of the electronic musical instrument according to the present invention.
[0022]
This electronic musical instrument is configured to control the overall operation of the electronic musical instrument using a central processing unit (CPU) 10. The CPU 10, program memory 12, working memory 14, performance information memory 16, a waveform memory 18, an operation panel 20, and a digital / analog (D / A) converter 22.
[0023]
Here, the operation panel 20 has a pad 30 which is 16 push buttons indicated by numerals 1 to 16 in FIG. 2 (note that the pad 30 corresponds to numerals 1 to 16 in FIG. 2). And a storage (REC) operation element 32 for designating a storage mode as a mode of the electronic musical instrument, and a reproduction for designating a playback mode as the mode of the electronic musical instrument. (PLAY) operation unit 34, stop (STOP) operation unit 36 for returning from the storage mode or the reproduction mode to the pad performance mode as the mode of the electronic musical instrument, and performance information stored by changing various settings A screen for displaying a group of other controls 38 used for editing, etc., and a display for editing the setting status and performance information by operating the various controls described above. And 示器 40 is provided.
[0024]
In other words, in this electronic musical instrument, the operation state of various operators provided on the operation panel 20 is monitored by the CPU 10, and the display content of the screen display 40 provided on the operation panel 20 is controlled by the CPU 10. Is.
[0025]
Further, each component of the electronic musical instrument described above will be further described. The program memory 12 is a memory in which a program of the CPU 10 is stored in advance, and the working memory 14 is a memory for working of the CPU 10, and various settings are also made here. Stored in memory.
[0026]
The performance information memory 16 is a memory for storing performance information based on operations of 16 pads 30 provided on the operation panel 20.
[0027]
Further, the waveform memory 18 is a memory that stores in advance 100 types of musical sound waveform data as digital data. The 100 types of musical sound waveform data stored in the waveform memory 18 are numbered 1 to 100 and managed.
[0028]
By the operation of the other operator group 38 on the operation panel 20, a setting for associating arbitrary musical sound waveform data with each of the 16 pads 30 of the operation panel 20 is performed.
[0029]
Note that the musical sound waveform data stored in the waveform memory 18 is obtained by playing various instruments called “phrases” for a certain period of time (for example, two measures of a certain piece of music). Examples include instrument sounds, instrument sounds obtained when a wind instrument is played only once or a stringed instrument is played once, voices such as singing voices and shouts, and sound effects such as rain sounds. In other words, the waveform memory 18 may store any sound data as musical sound waveform data, and it is not necessary to store the sound data of an instrument in particular.
[0030]
In this electronic musical instrument, the musical sound waveform data stored in the waveform memory 18 is read out by the CPU 10, converted into an analog signal by the digital / analog converter 22, and output from an amplifier or a speaker. The sound is emitted into space as a sound that can be heard through a configured sound system (not shown).
[0031]
Next, the operation of each mode of the electronic musical instrument will be described. First, in the pad performance mode, the sound waveform data corresponding to the operated pad 30 is controlled by the CPU 10 in accordance with the operation of the pad 30 under the control of the CPU 10. Read from.
[0032]
Here, as the manner of reading out the musical sound waveform data when the pad 30 is operated, the following three types of “GATE (gate)”, “TRIGGER (trigger)” and “DRUM (drum)” are set. Has been.
[0033]
(1) GATE
Reading of the musical sound waveform data is started in response to the pressing of the pad 30, and the pressing of the pad 30 is released, that is, the reading of the musical sound waveform data is stopped when the pressing of the pad 30 is stopped.
[0034]
(2) TRIGGER (trigger)
Reading of the musical sound waveform data is started in response to the pressing of the pad 30, and the reading of the musical sound waveform data is continued even when the pressing of the pad 30 is released, and the reading of the musical sound waveform data is stopped in response to the pressing of the pad 30 again. Is done.
(3) DRUM (drum)
Reading of musical sound waveform data is started in response to pressing of the pad 30, and reading of musical sound waveform data is automatically stopped when reading is performed up to an end point (described later) set in the musical sound waveform data. Is done.
[0035]
In this electronic musical instrument, the GATE, TRIGGER, or DRUM read mode is preset for each pad 30, and each pad 30 is operated for each pad 30 by the operation of the other operator group 38. The setting of the reading mode can be arbitrarily changed.
[0036]
Here, the musical sound waveform data will be described. As shown in FIG. 3, each musical sound waveform data is preset with a start point, an end point, and a loop point described below, and loop reading is performed. Whether or not to perform the setting is set in advance, and these settings for each musical sound waveform data can be arbitrarily changed by operating the other operator group 38.
[0037]
The start point indicates the reading start position of the musical sound waveform data according to the operation of the pad 30, and the start point is set at an arbitrary position of the musical sound waveform data by the operation of the other operator group 38, for example, the musical sound waveform. If set in the middle of the data, it is possible to start reading out the musical sound waveform data in the middle.
[0038]
The end point indicates a reading stop position of the musical sound waveform data, and when the end point is set to an arbitrary position of the musical sound waveform data, for example, in the middle of the musical sound waveform data by operation of the other operator group 38, Reading can be stopped in the middle of musical sound waveform data.
[0039]
The loop point indicates the beginning of the second and subsequent iterations when loop reading is performed, that is, the loop reading start position.
[0040]
These start point, end point, and loop point are designated by information indicating the relative position from the head of the musical sound waveform data.
[0041]
The position of the loop point may be before, after or the same as the position of the start point. However, the position of the end point needs to be set to be after both the position of the start point and the position of the loop point.
[0042]
Accordingly, when loop reading is performed, when the musical sound waveform data is read to the end point, the operation of returning to the loop point and continuing to read the musical sound waveform data is repeated.
[0043]
As for the reading of the musical sound waveform data corresponding to the pad 30 for which DRUM is set as the reading mode of the musical sound waveform data when the pad 30 is operated, the loop reading is performed even if the setting for performing the loop reading is performed. Is never done.
[0044]
From the above, how to read musical sound waveform data when the pad 30 is operated is as follows.
[0045]
(1) When GATE is not loop read
When the reading of the musical sound waveform data is started from the start point in response to the pressing of the pad 30 and the pressing of the pad 30 is released or the reading of the musical sound waveform data is performed up to the end point, the musical sound waveform data is read. Reading is stopped.
[0046]
(2) Case of GATE and loop reading
Reading of the musical sound waveform data is started from the start point in response to the pressing of the pad 30, and the reading is stopped when the pressing of the pad 30 is released. When the musical sound waveform data is read to the end point, the read position is returned to the position specified by the loop point, and the musical sound waveform data is continuously read.
[0047]
(3) In case of TRIGGER and not loop reading
Reading of musical sound waveform data is started from the start point in response to the pressing of the pad 30, and the reading is continued even if the pressing of the pad 30 is released. Then, when the pad 30 is pressed again or the reading of the musical sound waveform data is performed up to the end point, the reading of the musical sound waveform data is stopped.
[0048]
(4) In case of TRIGGER and loop reading
Reading of musical sound waveform data is started from the start point in response to the pressing of the pad 30, and the reading is continued even if the pressing of the pad 30 is released. Then, when the pad 30 is pressed again, reading is stopped. When the musical sound waveform data is read to the end point, the read position is returned to the position specified by the loop point, and the musical sound waveform data is continuously read.
[0049]
(5) In case of DRUM
Reading of musical sound waveform data is started from the start point in response to the pressing of the pad 30, and the reading is continued even if the pressing of the pad 30 is released. When the musical sound waveform data is read to the end point, the reading of the musical sound waveform data is stopped. Also, the loop read setting is ignored.
[0050]
Next, the storage mode will be described. In the storage mode, the sound waveform data is read in accordance with the operation of the pad 30 in the same manner as the pad performance mode, and the reading start timing of the sound waveform data and the reading stop of the sound waveform data are stopped. The timing is stored in the performance information memory 16 as performance information. When loop reading is set, both reading stop timing and reading start timing are stored when the musical sound waveform data is read up to the end point. Separately, the reading start timing and the reading stop timing are stored in the performance information memory 16 as performance information. The above-described processing in the storage mode will be described in detail later with reference to the explanatory diagram schematically showing the configuration of the performance information memory 16 shown in FIG. 4 and the flowcharts shown in FIGS.
[0051]
Next, the playback mode will be described. In the playback mode, the performance information stored in the performance information memory 16 is read out, and the reading of the musical sound waveform data is started in accordance with the read start timing of the musical sound waveform data. The reading of the musical sound waveform data is stopped according to the reading stop timing of the waveform data.
[0052]
Here, the performance information memory 16 will be described with reference to FIG. 4. The performance information memory 16 is provided with storage areas numbered with information numbers 1, 2, 3,. Each storage area stores a set of performance information. A set of performance information stored in each storage area is composed of four pieces of data: “music waveform data”, “reading start position”, “reading start time”, and “reading duration”.
[0053]
To explain these four data in detail, “musical tone waveform data” is data indicating the musical tone waveform data to be read, and stores any number 1 to 100 attached to each musical tone waveform data. It is. The “read start position” is data indicating the read start position of the musical sound waveform data, the “read start time” is data indicating the read start time, and the “read duration” is the duration from the read start to the read stop. It is data indicating time. The “reading start time” indicates the elapsed time from the reference time, with the time when the pad 30 is first pressed after the memory mode is set as the reference time.
[0054]
In addition, in this electronic musical instrument, only one musical sound waveform data can be read out at the same time, and while another musical sound waveform data is being read in response to an operation of a certain pad 30, another pad 30 can be read out. The operation is disabled. That is, in this electronic musical instrument, two or more musical sound waveform data are not read simultaneously.
[0055]
Here, the method of storing in the performance information memory 16 will be described in detail later with reference to the flowcharts shown in FIGS. 5 to 7, but the outline thereof will be described. When reading is started, a new set of performance information is added, and a number indicating the musical sound waveform data corresponding to the pad 30 is stored as “musical sound waveform data”, and the musical sound corresponding to the pad 30 is stored. The start point of the waveform data is stored as the “read start position”, and the time when the pad 30 is pressed, that is, the time at the start point is stored as the “read start time”.
[0056]
When loop reading is not performed, when the pressing of the pad 30 corresponding to the musical sound waveform data being read is released (in the case of GATE), or when the pad 30 is pressed again (in the case of TRIGGER). Alternatively, when the musical sound waveform data is read to the end point (in the case of DRUM), the elapsed time from the start of reading to the time is stored as “reading duration” for the latest performance information.
[0057]
On the other hand, when loop reading is performed, when the pressing of the pad 30 corresponding to the musical sound waveform data is released before reading the musical sound waveform data to the end point (in the case of GATE), or the pad 30 is pressed again. When this is done (in the case of TRIGGER), the “reading duration” is stored in the same manner as when loop reading is not performed.
[0058]
However, when performing loop reading, when the musical sound waveform data is first read to the end point, the elapsed time from the start of reading to the time point is stored as the “reading duration” for the latest set of performance information. At the same time, a new set of performance information is added and “musical sound waveform data”, “reading start position” and “reading start time” are stored. In this case, the loop point is stored as the “read start position”, and the time at the time of the loop point is stored as the “read start time”.
[0059]
After that, when the musical sound waveform data is read again up to the end point, the elapsed time from the start time of the previous loop reading is stored as the “reading duration” in the latest performance information set, as described above. In the same manner, a new set of performance information is added and “musical sound waveform data”, “reading start position”, and “reading start time” are stored. After that, when the pressing of the pad 30 is released (in the case of GATE), or when the pad 30 is pressed again (in the case of TRIGGER), the latest performance information from the start point of the previous loop reading is displayed. The elapsed time is stored as “reading duration”.
[0060]
By the way, since the performance information corresponding to the pressing is stored in the order in which the pad 30 is pressed, the performance information is stored in the performance information memory 16 in the order of “reading start time”.
[0061]
Therefore, when the performance information is read, if the performance information is read in the order stored in the performance information memory 16, the performance information can be read in the order of "reading start time". However, the performance information is read out of the performance information. If it can be read in the order to be performed, it can be handled as time-series performance information, and the performance information need not be stored in the performance information memory 16 in the order in which the performance information should be read.
[0062]
For example, when the performance information is not stored in the performance information memory 16 in the order of “reading start time”, the “reading start time” attached to the performance information is referred to, and the performance information is read in the order of the time indicated by the performance information. What should I do?
[0063]
Next, the processing in the storage mode according to the present invention will be described in detail with reference to the flowcharts of FIGS. Note that the processing in the pad performance mode and the playback mode is not related to the present invention, so detailed description thereof will be omitted, and only the outline will be described.
[0064]
First, processing performed when any of the pads 30 is pressed in the storage mode will be described with reference to a flowchart of the pad pressing (REC) routine shown in FIG.
[0065]
In the pad pressing (REC) routine, first, it is determined whether the pressed pad 30 is set to GATE, DRUM, or TRIGGER (step S502).
[0066]
If it is determined in step S502 that GATE or DRUM is set, the musical sound waveform data corresponding to the pressed pad 30 is started to be read from the start point (step S504). Thereafter, the musical sound waveform data is read one sample at a time toward the end point by another process (not shown) executed at each sampling period.
[0067]
Subsequent to step S504, the number indicating the musical sound waveform data read out in step S502 is stored as "musical sound waveform data" in the next performance information set of the latest performance information set in the performance information memory 16. The start point of the musical sound waveform data is stored as a “read start position”, and the time when the pad 30 is pressed, that is, the time at the start point is stored as the “read start time” (step S506).
Further, the value of the variable indicating the “elapsed time” is cleared to 0, the count up of this variable is started (step S508), and this pad pressing (REC) routine is ended. Thereafter, the variable indicating the elapsed time is incremented by 1 by another process (not shown) executed at predetermined intervals. The value of the variable indicating “elapsed time” is later stored in the performance information memory 16 as “reading duration”.
[0068]
If it is determined in step S502 that TRIGGER is set, it is determined whether or not the musical sound waveform data corresponding to the pressed pad 30 is being read (step S510). If it is determined that it is not the middle one, the same processing as that performed when it is determined in step S502 that GATE or DRUM is set is performed.
[0069]
On the other hand, if it is determined in step S510 that the data is being read, reading of the musical sound waveform data being read is stopped (step S512), and the value of the variable indicating “elapsed time” is set as the performance information memory 16. Is stored as the “reading duration” of the latest performance information set (step S514), and this pad pressing (REC) routine is terminated.
[0070]
When any of the pads 30 is pressed in the pad performance mode, the processing (step S506 and step S514) for storing various data in the performance information memory 16 and the “elapsed time” in the processing shown in FIG. "Is cleared and only the processing except the processing for starting the count-up (step S508) is performed.
[0071]
Next, referring to the flowchart of the end point arrival (REC) routine shown in FIG. 6, it is performed when the reading position of the musical sound waveform data being read in the storage mode reaches the end point of the musical sound waveform data. Processing will be described.
[0072]
In this end point arrival (REC) routine, first, it is determined whether the pad 30 corresponding to the musical sound waveform data reaching the end point is set to GATE, TRIGGER, or DRUM (step S602).
[0073]
If it is determined in step S602 that GATE or TRIGGER is set, it is determined whether or not loop reading is set for the musical sound waveform data that has reached the end point (step S604).
[0074]
If it is determined in step S604 that the setting to perform loop readout is made, the readout position of the musical sound waveform data that has reached the end point is moved to the loop point (step S606). As a result, the musical sound waveform data that has reached the end point is read again from the loop point toward the end point.
[0075]
Following step S606, the value of the variable indicating “elapsed time” is stored as the “reading duration” in the latest set of performance information in the performance information memory 16 (step S608).
[0076]
Further, a number indicating the musical sound waveform data whose read position has been moved to the loop point in step S606 is stored as “music sound waveform data” in the next performance information set in the performance information memory 16, and the musical sound waveform data is stored. The loop point is stored as “read start position”, and the time at the time of the loop point is stored as “read start time” (step S610).
[0077]
Then, the value of the variable indicating the “elapsed time” is cleared to 0, the count up of this variable is started (step S612), and this end point arrival (REC) routine is ended.
[0078]
On the other hand, if it is determined in step S602 that DRUM is set, or if it is determined in step S602 that GATE or TRIGGER is set, loop reading is not set in step S604. If it is determined, reading of the musical sound waveform data that has reached the end point is stopped (step S614), and the value of the variable indicating “elapsed time” is “read” of the latest performance information set in the performance information memory 16. As the “duration” (step S616), and the end point reached (REC) routine is terminated.
[0079]
In the pad performance mode, when the reading position of the musical sound waveform data being read reaches the end point of the musical sound waveform data, various data are stored in the performance information memory 16 in the process shown in FIG. Only the process (step S608, step S610 and step S616) and the process of clearing the “elapsed time” and starting the count-up (step S612) are performed.
[0080]
Next, processing performed when any of the pads 30 is released in the storage mode will be described with reference to a flowchart of a pad press release (REC) routine shown in FIG.
[0081]
In this pad pressing release (REC) routine, first, it is determined whether the pad 30 whose pressing has been released is set to GATE, TRIGGER, or DRUM (step S702).
[0082]
If it is determined in step S702 that GATE is set, it is determined whether or not the musical sound waveform data corresponding to the pad 30 whose pressure has been released is being read (step S704). If it is determined that the musical sound waveform data corresponding to the pad 30 for which the is released is being read, reading of the musical sound waveform data is stopped (step S706).
[0083]
Then, the value of the variable indicating the “elapsed time” is stored as the “reading duration” of the latest performance information set in the performance information memory 16 (step S708), and this pad press release (REC) routine is terminated.
[0084]
On the other hand, if it is determined in step S702 that TRIGGER or DRUM has been set, or if it is determined in step S702 that GATE has been set and the pressure is released in step S704, this corresponds to the pad 30. If it is determined that the musical sound waveform data is not being read, the pad press release (REC) routine is terminated without performing any processing.
[0085]
When the pressing of any pad 30 is released in the pad performance mode, the processing excluding the processing of storing “reading duration” in the performance information memory 16 in the processing shown in FIG. 7 (step S708). Do only.
[0086]
Further, when the stop (STOP) operation element 36 is operated to instruct to return from the storage mode to the pad performance mode, it is recorded which performance information set has been stored in the performance information memory 16. Return from the memory mode to the pad performance mode.
[0087]
Next, processing in the playback mode will be described. As processing in the playback mode, processing similar to a known automatic performance technique may be performed.
[0088]
That is, in the playback mode, performance information is read in order from the beginning to the end of the performance information memory 16, and musical sound waveform data is read based on the read performance information.
[0089]
More specifically, the first set of performance information is read out in accordance with the operation of the playback (PLAY) operation element 34, and the time when the playback (PLAY) operation element 34 is operated is set as the reference time, and the elapsed time from that time point. That is, the measurement of the time based on the start of reproduction is started. When the “reading start time” of the performance information set to be read matches this time, the musical sound waveform data indicated by the “musical sound waveform data” of the performance information set is changed to the “reading start position” of the performance information set. Start reading, and start measuring the elapsed time from that point.
[0090]
Then, when the “reading duration” of the set of performance information to be read matches the elapsed time, reading of the musical sound waveform data being read is stopped, and waiting for the next timing of reading the set of performance information, When the read timing is reached, the same processing as described above is repeated.
[0091]
In the pad performance mode, the contents stored in the performance information memory 16 can be edited by operating the other operator group 38. Since the processing related to editing is the same as that of the well-known automatic performance data editing technique, only the outline of the editing content will be described here.
[0092]
First, “delete”, “delete time”, “copy”, and “insert” are provided as edit items.
[0093]
“Erase” designates a specific set of performance information and deletes the set of performance information. When “Erase” is executed, the specified performance information set is deleted from the performance information memory 16, and all the performance information sets that were behind the deleted performance information are moved one by one and packed. become. Thereby, the musical sound waveform data read at a specific time can be prevented from being read out.
[0094]
“Time deletion” is to designate a specific set of performance information and delete the set of performance information. When “time deletion” is executed, the specified performance information set is deleted from the performance information memory 16, and the “read start time” of all the performance information sets that are behind the deleted performance information set is deleted. The performance information set is shifted forward by “reading duration” and then moved forward one by one. Thereby, for example, the same effect as that obtained by cutting out a part of the tape on which the musical sound is recorded and pasting the tapes before and after the cut out can be obtained.
[0095]
“Copy” designates a specific set of performance information and copies the same set of performance information as the set of performance information at the specified time. When “copy” is executed, the same set of performance information as the specified set of performance information is overwritten and stored at the specified time position on the performance information memory 16. At this time, the “reading start time” is the designated time.
[0096]
“Insert” designates a specific set of performance information and inserts the same set of performance information as the set of performance information at the specified time. When “insert” is executed, the same set of performance information as the specified set of performance information is inserted and stored at the specified time position on the performance information memory 16.
[0097]
That is, the “reading start time” of all the performance information sets that were behind the set of performance information that is inserted and stored is shifted backward by the “reading duration” of the set of performance information that is inserted and stored. After that, it is moved back one by one, and a set of performance information to be inserted whose “reading start time” is the designated insertion time is stored in an empty place.
[0098]
In this electronic musical instrument, when it is instructed to edit the stored contents of the performance information memory 16, the stored contents of the performance information memory 16 as shown in FIG. 4 are displayed on the screen display 40 of the operation panel 20. Therefore, the user designates a set of performance information to be edited while viewing the screen display of the screen display 40. At this time, one set of performance information can be specified, or a plurality of sets of continuous performance information can be specified. Done.
[0099]
In this electronic musical instrument, the performance information stored by designating that loop reading is performed as described above is stored as a separate set of performance information for each repetition (loop). Editing such as specifying and deleting only a set of performance information related to the second iteration (loop) can be performed.
[0100]
The embodiment described above may be modified as shown below.
[0101]
(1) In the above-described embodiment, the timing for stopping the reading of musical tone waveform data is determined by the “reading start time” and “reading duration” of the set of performance information, but is not limited to this. In addition, instead of the “reading duration”, a “reading stop time” indicating the read stop timing alone may be provided. In this case, the performance information for instructing the start of reading of musical tone waveform data and the performance information for instructing to stop reading may be defined separately.
[0102]
Further, in the above-described embodiment, the timing is defined based on the elapsed time from the reference with a predetermined time common to all performance information such as “reading start time” as a reference. Without being limited thereto, the timing may be defined based on the time difference between the sets of performance information. For example, instead of the “read start time”, a “time difference” indicating a time difference from the immediately preceding set of performance information may be provided.
[0103]
Further, in the above-described embodiment, the accuracy of time management of performance information is not particularly specified, but time management may be performed with a fixed value, for example, 1 millisecond as a minimum unit. Time management may be performed with a time interval corresponding to the performance tempo to be performed, for example, 1 / 96th of a quarter note as a minimum unit. When time management is performed at time intervals according to the designated performance tempo, the accuracy of time management changes according to the designated performance tempo.
[0104]
In short, in the present invention, any management method may be adopted as long as the timing at which the musical sound waveform data is started to be read and the timing at which the musical sound waveform data is read out and stopped are defined by the performance information.
[0105]
(2) In the above-described embodiment, in the storage mode, a separate set of performance information is stored every time the musical sound waveform data is read out in a loop. However, the present invention is not limited to this. Thus, when reading of musical sound waveform data is stopped, a set of a plurality of pieces of performance information corresponding to the number of loop read times of musical sound waveform data that have been read may be created and stored together. Alternatively, like the conventional automatic performance device, in the storage mode, only the operation timing of the pad 30 is stored, and after completion of the storage mode, a plurality of sets of performance information corresponding to the number of loop reads are collected. It may be created and stored.
[0106]
In short, as long as a plurality of pieces of performance information are finally stored corresponding to the number of loop readings, it does not matter when the set of such performance information is stored.
[0107]
(3) In the above-described embodiment, only one musical sound waveform data can be read at a time. However, the present invention is not limited to this, and a plurality of musical sound waveform data may be read at a time.
[0108]
In the embodiment described above, only the performance information for one track is stored / reproduced as compared with the conventional automatic performance device. However, the present invention is not limited to this. Information may be stored / reproduced.
[0109]
(4) In the above embodiment, when loop reading is performed, the loop is returned from the end point to the loop point, but instead, the loop point is not provided and the loop is returned to the start point. It may be. Alternatively, although a loop point is provided, it may be possible to set whether to return to a loop point or a start point.
[0110]
In the above-described embodiment, by setting the start point エ ン ド and the end point in the musical sound waveform data, it is possible to start reading from the middle of the musical sound waveform data and stop reading halfway. However, the reading may be started from the beginning of the musical sound waveform data without setting the start point and the end point, and the reading may be stopped at the end of the musical sound waveform data.
[0111]
In short, the present invention can be applied if loop reading is performed.
[0112]
(5) When editing performance information, a set of performance information obtained by normal reading that is not loop reading and a set of performance information obtained by loop reading are clearly distinguished and displayed, and any set of performance information is repeatedly read out. It may be possible to easily discriminate whether or not. At this time, each musical tone waveform data may be displayed with an identification code attached to each of a plurality of sets of performance information generated by loop reading out a plurality of times. For example, “1” is set for the performance information set corresponding to the first reading, “2” is set for the performance information set corresponding to the second reading, and “2” is set for the performance information set corresponding to the third reading. “3” is attached and displayed. In this way, when there are a large number of sets of performance information, they can be easily identified.
[0113]
(6) In the above-described embodiment, the performance information is displayed in the format shown in FIG. 4. However, the performance information is not limited to this, and may be displayed in another display format. You may make it perform a display as shown in FIG. In the display form shown in FIG. 8, the horizontal axis direction in FIG. 8 indicates the elapsed time, and the central vertical line indicates the current time. The left side in FIG. 8 is the performance start time, the right side in FIG. 8 is the performance end time, and the performance information for reading the musical sound waveform data is displayed as a rectangle on the dotted line, and the rectangle that is long in the horizontal direction is long. This indicates that the musical sound waveform data is read out over time, and a rectangle that is short in the horizontal direction indicates that the musical sound waveform data is read out over a short time.
[0114]
In the display mode shown in FIG. 8, in the playback mode, the rectangle moves to the left as the performance information is played back.
[0115]
In FIG. 8, the portion 100 connected to the six short rectangles displayed in the substantially central portion indicates that six pieces of performance information for reading out the musical sound waveform data are adjacent to each other for a short time. The performance information related to reading is displayed in such a form. Employing such a display form makes it possible to easily determine performance information related to loop reading.
[0116]
(7) In the above embodiment, the performance information to be edited is designated only in the pad performance mode, that is, in a state where the storage and reproduction of the performance information is stopped. However, the present invention is not limited to this. During reproduction of the performance information, that is, when the musical sound waveform data to be edited is being read, the performance information related to the musical sound waveform data being read is designated as the editing target by performing a predetermined designation operation. It may be.
[0117]
(8) In the above-described embodiment, the musical instrument sound obtained by playing various musical instruments over a certain period of time (for example, the time of two measures of a certain musical piece) is obtained by loop reading out the musical sound waveform data. Phrases can be generated repeatedly. Phrases can be generated by repeatedly playing automatic performance data that sequentially instructs various instrument sounds to be played for a certain amount of time (for example, two measures of a song). Of course, the present invention may be applied to the case where the above is repeatedly generated. In this case, different automatic performance data is assigned to each pad 30, the corresponding automatic performance data is reproduced according to the operation of the pad 30, and the musical sound is reproduced based on the reproduced automatic performance data. To do. If it is specified that the automatic performance data is to be reproduced in a loop, if the automatic performance data is reproduced to the end while the automatic performance data is designated by the operation of the pad 30, the automatic performance data is reproduced at that time. The reproduction may be continued by returning to a predetermined repetition position such as the top of the automatic performance data.
[0118]
In the storage mode, the information for instructing the playback start timing and playback stop timing of the automatic performance data is stored as performance information. In the storage mode, the playback of the automatic performance data is stopped every time playback is performed up to the end of the automatic performance data. Information indicating the timing and the reproduction start timing may be stored as performance information.
[0119]
(9) In the above-described embodiment, a pad 30 as an input means for inputting a generation start instruction of a musical tone or a musical string and an instruction to stop generation of a musical tone or a musical string, and performance information are stored in one device. However, the present invention is not limited to this, and these are configured as separate devices and connected via communication means such as MIDI. Also good.
[0120]
(10) In the embodiment described above, when loop reading is performed, a set of performance information is unconditionally generated and stored for each loop, but this increases the amount of performance information. In the case where the performance information is not edited after the performance information is stored, an undesirable result is brought about. In order to deal with such a point, it may be possible to arbitrarily select whether or not to generate and store a set of performance information for each loop.
[0121]
When a set of performance information for each loop is not generated and stored, when reading of musical sound waveform data is started by operation of the pad 30 and when reading of musical sound waveform data is stopped, as in the conventional device. Only as performance information.
[0122]
The selection of whether or not to generate and store a set of performance information for each loop may be made before the performance information is stored, or a predetermined operator may be used when storing the performance information. The selection may be made by operating the pad 30 while operating, or by operating the pad 30 without operating a predetermined operator. If the selection is made by operating the pad 30 while operating the predetermined operation element when storing the performance information, or operating the pad 30 without operating the predetermined operation element, For each arbitrary section, it is possible to arbitrarily specify whether or not to generate and store a set of performance information for each loop.
[0123]
Further, during storage, the same storage as in the conventional apparatus may be performed, and a set of performance information may be generated and stored for each loop according to a user instruction during editing after the storage ends. In this case, this process may be performed only for an arbitrary section of the performance information.
[0124]
When playing back the stored performance information specifying that a set of performance information is not generated for each loop, the musical tone data is still read when the musical sound waveform data is read to the end point, as in the conventional apparatus. If it is not time to stop reading waveform data, the process returns to the loop point to continue reading musical tone waveform data.
[0125]
(11) In the above-described embodiment, no particular explanation has been given regarding storing new musical sound waveform data in the waveform memory 18, but the musical sound waveform data is input from the outside and stored in the waveform memory 18. May be. At this time, in order to input musical sound waveform data from the outside, an analog / digital converter is provided, and the musical sound waveform of the analog signal is converted into a digital signal and stored in the waveform memory 18 under the control of the CPU 10, or It is conceivable that an interface for exchanging digital data with an external device is provided and musical tone waveform data of a digital signal is stored in the waveform memory 18 under the control of the CPU 10.
[0126]
In the latter case, not only musical sound waveform data but also performance information may be exchanged with an external device via an interface, and performance information input from the outside may be stored in the performance information memory 16. . In such cases, when performance information is input from the outside, the contents of the performance information are automatically examined to grasp the musical sound waveform data that is specified to be read, and the musical sound waveform data is transferred from an external device. May be stored in the waveform memory 18. In this way, when the performance information set in the external device is captured, the musical sound waveform data to be used for the performance information is automatically captured along with the performance information. The operation related to capturing is simplified, and the musical sound waveform data designated by the performance information can be definitely read when the captured performance information is reproduced.
[0127]
Note that the musical sound waveform data captured from the outside as described above may be associated with an arbitrary pad 30 so that the musical sound waveform data captured from the outside can be read by operating the pad 30. For example, it is indicated that an arbitrary set of performance information is specified in the same procedure as editing of the performance information, the pad is specified by operating an arbitrary pad 30, and is read out in the specified set of performance information. The musical tone waveform data may be assigned to the designated pad 30.
[0128]
(12) In the above-described embodiment, the information based on the operation of the pad 30 is the performance information. However, the performance information is not limited to this. For example, information based on the performance of the keyboard may be used as the performance information, and the performer designates numerical values for the read start timing and the read stop timing of the musical sound waveform data regardless of the performance operation of the pad 30 or the keyboard. The performance information may be input.
[0129]
Further, which musical sound waveform data is to be read may be designated by direct identification information such as the number of the musical sound waveform data, as shown in the above embodiment, or read out. May be specified indirectly by specifying a pad 30 or key to which musical sound waveform data to be performed is assigned.
(13) It is needless to say that the various modifications described in the above embodiment and the above (1) to (12) can be appropriately combined.
[0130]
【The invention's effect】
Since the present invention is configured as described above, performance information can be stored separately for each loop. For example, editing such as deleting only a specific loop is performed. It has an excellent effect that it becomes possible.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram conceptually showing performance information generated by the present invention.
FIG. 2 is a block diagram showing the overall configuration of the electronic musical instrument according to the present invention.
FIG. 3 is an explanatory diagram conceptually showing start points, end points, and loop points set for musical sound waveform data.
FIG. 4 is an explanatory diagram showing a configuration of a performance information memory and a display form of performance information.
FIG. 5 is a flowchart of a pad pressing (REC) routine.
FIG. 6 is a flowchart of an end point arrival (REC) routine.
FIG. 7 is a flowchart of a pad press release (REC) routine.
FIG. 8 is an explanatory diagram showing a display form of performance information.
[Explanation of symbols]
10 Central processing unit (CPU)
12 Program memory
14 Working memory
16 Performance information memory
18 Waveform memory
20 Operation panel
22 Digital / analog (D / A) converter
30 pads
32 Memory (REC) operator
34 Playback (PLAY) control
36 Stop (STOP) control
38 Other controls
40 screen display

Claims (4)

Musical sound waveform data storage means for storing musical sound waveform data having a read start position, a read stop position, and a loop read start position;
Instruction means for instructing generation start and generation stop of the musical sound waveform data;
Performance information storage means for storing time-series performance information indicating that the musical sound waveform data is generated so as to be sequentially reproducible;
The elapsed time from the generation start instruction timing of the musical sound waveform data by the instruction means to the generation stop instruction timing is longer than the generation time of the first section from the read start position of the musical sound waveform data to the read stop position. Sometimes, performance information indicating that the musical sound waveform data is generated for the generation time of the first section from the generation start instruction timing is stored in the performance information storage means, and after the generation start instruction timing The timing at which the loop readout start position is read each time the second section from the loop readout start position to the readout stop position of the musical sound waveform data is repeatedly generated for the elapsed time from the time when the first section has elapsed. To indicate that the musical sound waveform data is generated only for the generation time of the second section. Electronic musical instrument and a music information storage control means for storing in said performance information storing unit repeatedly. Musical sound waveform data storage means for storing musical sound waveform data having a read start position, a read stop position, and a loop read start position;
Instruction means for instructing generation start and generation stop of the musical sound waveform data;
Performance information storage means for storing time-series performance information indicating that the musical sound waveform data is generated so as to be sequentially reproducible;
Mode selection means capable of arbitrarily selecting either the storage mode or the reproduction mode;
Reproduction means for sequentially reproducing time-series performance information stored in the performance information storage means;
When the reproduction mode is selected by the mode selection means, a musical sound is generated by reading musical sound waveform data based on the performance information reproduced by the reproduction means, and the storage mode is selected by the mode selection means. Sometimes, in response to the generation start instruction by the instruction means, the reading of the musical sound waveform data is started from the read start position, read to the read stop position, and then loop read from the loop read start position to the read stop position. And the musical tone waveform data read control means for stopping reading in response to the generation stop instruction by the instruction means,
When the storage mode is selected by the mode selection unit, the musical sound waveform is generated only for the generation time of the first section from the timing of the generation start instruction by the instruction unit to the reading stop position of the musical sound waveform data. Performance information indicating that data is to be generated is stored in the performance information storage means, and each time the second section from the loop reading start position to the reading stop position of the musical sound waveform data is repeatedly generated, the loop reading start is started. An electronic musical instrument comprising performance information storage control means for repeatedly storing performance information indicating that the musical sound waveform data is generated for a generation time of a second section from the timing at which the position is read out, in the performance information storage means . Automatic performance data storage means for storing automatic performance data having a reproduction start position, a reproduction stop position, and a loop reproduction start position;
Instruction means for instructing the start and stop of reproduction of the automatic performance data;
Performance information storage means for storing time-series performance information indicating that the automatic performance data is reproduced so as to be sequentially reproducible;
Mode selection means capable of arbitrarily selecting either the storage mode or the reproduction mode;
Reproduction means for sequentially reproducing time-series performance information stored in the performance information storage means;
When the playback mode is selected by the mode selection means, a musical tone is generated by reading out automatic performance data based on the performance information played back by the playback means, and the storage mode is selected by the mode selection means. sometimes, the start playback of the automatic performance data from the reproduction start position in accordance with the reproduction start instruction by said instruction means, after reproducing up to the reproduction start position, from the loop reproduction start position and the playback stop position Automatic performance data reproduction control means for continuing loop reproduction and stopping reproduction in response to a reproduction stop instruction by the instruction means;
When the storage mode is selected by the mode selection means, the automatic performance is performed only for the reproduction time of the first interval from the reproduction start position of the automatic performance data to the reproduction stop position from the timing of the reproduction start instruction by the instruction means. Performance information indicating that data is to be reproduced is stored in the performance information storage means, and the loop reproduction starts each time the second section from the loop reproduction start position to the reproduction stop position of the automatic performance data is repeatedly reproduced. An electronic musical instrument comprising performance information storage control means for repeatedly storing performance information indicating that the automatic performance data is reproduced for the reproduction time of the second section from the timing of reproducing the position in the performance information storage means . The electronic device according to claim 1, further comprising:
Electronic equipment having editing means capable of arbitrarily editing arbitrary performance information stored in the performance information storage means.

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