JP4132213B2 - Electronic musical instruments - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electronic musical instrument, and more specifically, a plurality of waveform data is stored in advance, and read timings of these waveform data are stored in advance as automatic performance data, and the automatic performance data is reproduced. The present invention relates to an electronic musical instrument that reads waveform data by using the above.
[0002]
[Prior art]
Conventionally, a plurality of waveform data is stored in advance in a large-capacity storage medium such as a disk medium using magnetism or light, and the readout timing of these waveform data is defined in advance as automatic performance data. There is known an electronic musical instrument in which waveform data is read by reproducing performance data.
[0003]
Here, a large-capacity storage medium such as a disk medium using magnetism or light takes a certain amount of time until the waveform data is actually acquired after attempting to read the stored waveform data. is there.
[0004]
For this reason, in a conventional electronic musical instrument, a small-capacity semiconductor memory is provided separately, and waveform data is transferred from the large-capacity storage medium to the semiconductor memory in advance before the actual automatic performance timing. The waveform data stored in the memory is read at a timing defined by the automatic performance data.
[0005]
In this case, when waveform data is read from the semiconductor memory and a free area is created in the semiconductor memory, the next waveform data is transferred from the large-capacity storage medium to the free area. Using the memory, the waveform data is read from the mass storage medium one after another while performing automatic performance.
[0006]
In such electronic musical instruments, generally, there is a limit to the number of waveform data that can be read simultaneously. Specifically, the number of waveform data that can be read simultaneously is limited to “1”, for example.
[0007]
Therefore, the automatic performance data in the electronic musical instrument in which the number of waveform data that can be read simultaneously is limited to “1”, the first waveform data is read from a certain time to a certain time, and from the next certain time to a certain time. The second waveform data different from the first waveform data is read out.
[0008]
By the way, when creating automatic performance data in such a format, information for specifying time and waveform data is entered numerically to create automatic performance data, and it is troublesome to create automatic performance data. Met.
[0009]
On the other hand, having a plurality of operators, assigning waveform data to each of these operators, and operating (playing) these operators to create automatic performance data in real time, It was easy to create automatic performance data.
[0010]
However, conventionally, in the case where automatic performance data is created in real time by manipulating (playing) the operators assigned with waveform data in this way, consideration is given to handling when a plurality of operators are operated simultaneously. Was not.
[0011]
That is, when only one waveform data can be reproduced at the same time, when a plurality of operators assigned with waveform data are operated simultaneously, the operation state as it is is stored and reproduced as automatic performance data. If so, it is necessary to read the waveform data assigned to the previously operated control partway, stop the reading, and start reading the waveform data assigned to the later operated control. However, there was a problem that this was not possible.
[0012]
[Problems to be solved by the invention]
The present invention has been made in view of the various problems of the prior art as described above, and the object of the present invention is to operate (perform) an operator assigned waveform data. An object of the present invention is to provide an electronic musical instrument with improved processing when a plurality of operators are operated simultaneously in the case of storing an instruction to start reading waveform data assigned to the operator.
[0013]
[Means for Solving the Problems]
In order to achieve the above object, the invention described in claim 1 of the present invention is: A plurality of operators each assigned with waveform data, and at least information for instructing to start reading waveform data assigned to the operator based on the operation of the operator in a recording state and the operation Automatic performance means for reading out waveform data assigned to the child and reproducing information instructing to start reading out the waveform data in the reproduction state; and in a state where one waveform data is being read out in the recording state; When an operator is operated to store information instructing to start reading waveform data assigned to the new operator by the automatic performance means and to read waveform data assigned to the new operator Information for instructing to stop reading the waveform data being read The control means for storing and the waveform data in accordance with the information instructing to stop reading of the waveform data are started in response to the information instructing to start reading out the waveform data reproduced by the automatic performance means. Waveform data reading means for stopping data reading; and It is made to have.
[0016]
Accordingly, the present invention claims 1 According to the invention described in (1), when the operator is operated while one waveform data is being read, information for instructing to stop reading the waveform data being read is stored. For this reason, if an operator is operated while one waveform data is being read, reading of the waveform data being read is stopped, and reading of the waveform data assigned to the operated operator is started. To be able to.
[0017]
Here, as the information instructing to start reading waveform data and the information instructing to stop reading waveform data in the present invention, for example, note-on is stored as information instructing to start reading waveform data. The information for instructing to start reading waveform data and the information for instructing to stop reading waveform data are stored as separate information, such as note-off is stored as information instructing to stop reading waveform data. In addition, information instructing to start reading waveform data and information instructing to stop reading waveform data are stored as a set of information.
[0018]
For example, the information for instructing to start reading waveform data and the information for instructing to stop reading waveform data are stored as one set of information. It is only necessary to store the information shown and the information showing the elapsed time from the time when reading of the waveform data is started to the time when reading of the waveform data is stopped. In this case, when the current time coincides with the time when the waveform data indicated by the one set of information starts to be read out, the start of reading the waveform data is instructed, and the elapsed time from that point The stop of reading of waveform data is instructed at the time when the elapsed time from the time when reading of waveform data indicated by the information starts to the time when reading of waveform data is stopped is coincident.
[0019]
In the control means according to claim 1 of the present invention, “ A new control is operated ... the automatic performance means stores information instructing to stop reading waveform data ", but the processing content of such control means is, for example, note information as an instruction to start reading waveform data. When performing a process of storing ON and storing in advance the note-off corresponding to the note-on at the same timing as the note-on, “when two or more of the operators are operated simultaneously. ”Or“ When the operation element is operated ”, information indicating the current time of note-off by writing information indicating the current time of note-off, or stored information indicating the current time of note-off It includes a process of ending the update and confirming the note-off.
[0020]
Here, in the present invention, the waveform data reading means in claim 1 is, for example, in the present invention. 2 As described in the invention, the first storage means for storing the waveform data in advance, the second storage means for temporarily storing the waveform data stored in the first storage means, and the automatic performance Prior to reproduction by the means, transfer means for transferring the waveform data from the first storage means to the second storage means, and reading start of the waveform data reproduced in accordance with the timing of reproduction by the automatic performance means. In response to the instructed information, the reading start means for starting the reading of the waveform data stored in the second storage means, and the storage area in which the waveform data has already been read in the second storage means, Waveform data corresponding to information instructing to start reading the waveform data at a time point later than the current playback timing by the automatic performance means is transferred from the first storage means. And an end means for ending the transfer from the first storage means in response to the information for instructing to stop the reading of the waveform data corresponding to the information for instructing to start the reading of the waveform data. can do.
[0024]
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.
[0025]
FIG. 1 is a block diagram showing the overall configuration of an electronic musical instrument according to the present invention.
[0026]
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, an analog / digital converter (A / D) 12, and a magnetic or It comprises a disk 14 using light, a semiconductor memory 16, a reader 18, an operation panel 20, and a digital / analog converter (D / A) 22.
[0027]
That is, in the electronic musical instrument shown in FIG. 1, the entire operation is controlled by the CPU 10, and the audio signal (musical sound signal) input from the outside is A / D converted by the analog / digital converter 12. The waveform data is stored in the disk 14 under the control of the CPU 10.
[0028]
In this embodiment, the disk 14 using magnetism or light is used to store the waveform data. However, a storage device other than the disk may be used as long as it can store a large capacity. Of course it is good.
[0029]
The semiconductor memory 16 has only a small storage capacity compared to the disk 14 but can be accessed at high speed. The semiconductor memory 16 includes a random access memory (RAM) in which an area for storing waveform data, a working area, and the like are provided, and a read only memory (ROM) in which a program of the CPU 10 is stored. It is configured.
[0030]
The reader 18 reads the waveform data stored in the semiconductor memory 16 under the control of the CPU 10, and the read waveform data is converted into an audio signal (musical signal) by a digital / analog converter 22 as a D / A. It is converted and output.
[0031]
Further, the operation panel 20 has 16 pads 30 indicated by numerals 1 to 16 in FIG. 1 (pads 1 to 16 are assigned to the pads 30 corresponding to numerals 1 to 16 in FIG. 1). 1), four track (TRACK) designation operators 32 indicated by numerals 1 to 4 in FIG. 1 (note that the track designation operator 32 corresponds to numerals 1 to 4 in FIG. Track numbers 1 to 4 are managed), a recording (REC) operation element 34, a reproduction (PLAY) operation element 36, a stop (STOP) operation element 38, and a bank switching operation element 40 are provided. Yes. Here, the pad 30 is a push button switch, instructing to start reading waveform data pre-assigned to the pad 30 in response to the start of the operation, and reading out waveform data in response to the stop of the operation. Stopped.
[0032]
In this embodiment, three types of waveform data allocation patterns to the 16 pads 30 are set. Each allocation pattern is referred to as a bank, and an arbitrary bank can be selected according to the operation of the bank switching operator 40.
[0033]
The recording (REC) operation element 34 is an operation element for switching to the recording mode. In the recording mode, automatic performance data corresponding to the operation of each pad 30 is recorded.
A playback (PLAY) operator 36 is an operator for switching to the playback mode. In the playback mode, the recorded automatic performance data is played back, and the waveform data corresponding thereto is read out.
[0034]
A stop (STOP) operation element 38 is an operation element for returning from the recording mode or the reproduction mode to the normal mode.
[0035]
There are four tracks on which the automatic performance data is recorded. In the recording mode, the automatic performance data is stored in any one of the tracks selected by any one of the track designating operators 32. The automatic performance data of the track is played back.
[0036]
FIG. 2 conceptually shows the format of the storage area of the disk 14. The storage area of the disk 14 is divided into clusters each having a predetermined storage capacity, and each waveform data includes one or a plurality of waveform data. Are stored across multiple clusters.
[0037]
In FIG. 2, the clusters are drawn so as to be physically continuous, but need not be physically continuous. Therefore, with respect to each waveform data, a cluster storing the top part of the waveform data, a cluster storing the next part, a cluster storing the next part,... For each waveform data, it is managed in which cluster on the disk 14 each part of the waveform data is stored.
[0038]
The waveform data is always stored from the beginning of the cluster, and only one waveform data is stored in one cluster. Since the size of the waveform data is independent of the size of the cluster, the end of the waveform data is generally not the end of the cluster.
[0039]
Each waveform data is set with a data amount QT of the waveform data.
Next, the semiconductor memory 16 will be described. In addition to the above-described area for managing each waveform data, bank management area, automatic performance data storage area, working area, etc. Corresponding to each of the pads 30, a start buffer START for storing the start position portion of the waveform data assigned to each of these pads 30, and for temporarily storing the waveform data from the disk 14 when reading the waveform data 4 channels of read buffers READ are provided.
[0040]
In the recording mode and the reproduction mode, each channel corresponds to each track.
[0041]
FIG. 3 conceptually shows the format of the start buffer START described above. The start buffer START is provided with areas for two clusters corresponding to the 16 pads 30 of pad numbers 1 to 16, respectively, and each area is assigned with cluster number 1 and cluster number 2, respectively. Yes.
[0042]
FIG. 4 conceptually shows the format of the read buffer READ described above. The read buffer READ is provided with an area for four channels so that four-tone simultaneous sound generation is possible, and channel numbers 1 to 4 are assigned to the respective channels. Further, each of these four channels is provided with an area for four clusters corresponding to each channel, and cluster numbers 1 to 4 are assigned to each area.
[0043]
In this specification, in order to facilitate understanding of the present invention, an area for one cluster of the start buffer START and the read buffer READ is also referred to as a “cluster”.
[0044]
When the start of reading is instructed by the operation of the pad 30 (pressing start), one of the channels is selected based on an assignment order (which will be described later) indicating the order of which channel is selected. The stored contents of the start buffer START corresponding to the operated pad 30 are transferred to the read buffer READ of the channel.
[0045]
Further, the reading device 18 is provided with four channels for reading, and each channel reads the stored contents of the corresponding channel of the reading buffer READ and outputs it as an audio signal (musical signal).
[0046]
The clusters in the read buffer READ are read in the order of cluster numbers 1 to 4. When the cluster with cluster number 4 is read, the cluster with cluster number 1 is read next.
[0047]
Each channel is set with a data amount QT of waveform data read by the channel.
[0048]
In the reader 18, each channel starts reading the waveform data stored in the first cluster of the read buffer READ in response to the waveform data read start instruction by the operation (start pressing) of the pad 30. The data of one sample is read for each sampling period, and the set data amount QT is decremented.
[0049]
Each channel notifies the CPU 10 when reading of each cluster of the read buffer READ is completed and when the value of the data amount QT becomes 0.
[0050]
When the CPU 10 receives notification that the cluster reading has been completed, the CPU 10 reads and stores one cluster of waveform data to be stored next in the cluster from the disk 14, while the data amount QT is 0. When it is notified that it has become, after instructing that channel to stop reading, a notification that cluster reading has ended is issued.
[0051]
The channel stops reading waveform data when receiving a read stop instruction from the CPU 10.
[0052]
In the normal mode, the waveform data corresponding to the pad 30 is read to the end when the operation of the pad 30 is stopped (when the press is released) or during the operation (pressing) of the pad 30. Sometimes, reading of waveform data is stopped.
[0053]
In addition, the storage area of the automatic performance data in the semiconductor memory 16 is provided with a storage area for each track, and time-series automatic performance data is stored for each track.
[0054]
Here, the automatic performance data includes note-on, note-off, and performance stop, all of which are stored together with information indicating the current time.
[0055]
In the recording mode, the current time indicates the elapsed time from this time point to the present time, with the time point of the operation (start of pressing) of the first pad 30 after the recording mode is set to zero.
[0056]
In the playback mode, the time when the playback mode is set is 0, the elapsed time from this time to the current time is the current time, and note-on and note-off that match the current time are played.
[0057]
Note that information indicating which pad 30 of which bank has been operated is also recorded in the note-on.
[0058]
The performance stop is recorded when the performance stop is instructed by the operation of the stop (STOP) operator 38.
[0059]
Next, referring to the bank switching process flowchart shown in FIG. 5, when the operation of the electronic musical instrument is stopped, that is, in the normal mode, the bank switching operator 40 is operated to instruct bank switching. Will be explained.
[0060]
That is, when the operation of the electronic musical instrument is stopped, that is, in the normal mode, when the bank switching operation element 40 is operated to instruct bank switching, the processing shown in the bank switching processing flowchart of FIG. 5 is executed. Is.
[0061]
In the bank switching process flowchart, first, in step S502, waveform data is assigned to each pad 30 corresponding to a newly designated bank.
[0062]
When the process of step S502 is completed, the process proceeds to step S504, and the waveform data for the first two clusters is read from the disk 14 for the waveform data corresponding to each pad 30, and the first cluster and the second cluster of the corresponding start buffer START are read. Remember to cluster. However, with regard to waveform data composed of only one cluster, the waveform data is stored only in the first cluster.
[0063]
When the process of step S504 is completed, the process proceeds to step S506, where the readout of the waveform data is instructed to each readout channel of the reader 18, and the assignment order is updated when the channel is not in use.
[0064]
When the process of step S506 is terminated, the process of the flowchart of the bank switching process is terminated.
[0065]
Next, referring to the flowchart of the pad-on (STOP) process shown in FIG. 6, while the operation of the electronic musical instrument is stopped, that is, in the normal mode, any one of the pads 30 is operated (pressed down) and read. Processing when a start instruction is given will be described.
[0066]
That is, when the operation of the electronic musical instrument is stopped, that is, in the normal mode, when any of the pads 30 is operated (pressed down) and a reading start instruction is given, the flowchart of the pad-on (STOP) process in FIG. The processing shown in FIG.
[0067]
In the flowchart of the pad-on (STOP) process, first, in step S602, a channel to which the waveform data of the newly operated pad 30 is assigned is selected based on a predetermined assignment order.
[0068]
The assignment order may be determined by using a well-known assignment technique. For example, if there is a channel for which waveform data is not read out, the channel is selected, and a channel for which waveform data is not read out is selected. If not, select the channel that started reading the earliest.
If a channel being read is selected, stop reading is instructed to that channel.
[0069]
When the process of step S602 is completed, the process proceeds to step S604, and the waveform data of the first cluster and the second cluster of the start buffer START of the newly operated pad 30 is converted into the first cluster of the read buffer READ of the selected channel. And store in the second cluster.
[0070]
If only waveform data for one cluster in the start buffer START is stored, only the waveform data for one cluster is transferred to the read buffer READ.
[0071]
When the process of step S604 is completed, the process proceeds to step S606, where the data amount QT of the waveform data allocated in the currently selected bank (hereinafter referred to as “current bank”) with respect to the newly operated pad 30 is determined. The selected channel is set, and this channel is instructed to start reading from the top of the first cluster. At this time, the management information and the assignment order indicating which waveform data of which pad 30 is read in which channel is updated in accordance with the use of the channel.
[0072]
As a result, reading of the waveform data assigned in the current bank with respect to the operated pad 30 in the selected channel is started.
[0073]
When the process of step S606 is completed, the process proceeds to step S608, where the remaining two clusters of waveform data are read from the disk 14 and transferred to the third and fourth clusters of the read buffer READ of the selected channel. The on (STOP) process is terminated.
[0074]
When the waveform data is only for two clusters, the waveform data is not transferred. When the waveform data is only for three clusters, only the waveform data for one cluster is transferred.
[0075]
By the pad-on (STOP) processing described above, the waveform data necessary for the read buffer READ is stored and reading of the waveform data is started in accordance with the operated pad 30.
[0076]
Next, referring to the flowchart of the pad-off (STOP) process shown in FIG. 7, while the operation of the electronic musical instrument is stopped, that is, in the normal mode, any one of the pads 30 is stopped (press release) The process when a read stop instruction is issued will be described.
[0077]
That is, when the operation of the electronic musical instrument is stopped, that is, in the normal mode, when any of the pads 30 is stopped (depressed) and a reading stop instruction is given, the pad OFF (STOP) in FIG. ) The process shown in the process flowchart is executed.
[0078]
In the pad-off (STOP) process flowchart, first, in step S702, it is determined whether or not there is a channel for reading the waveform data of the pad 30 whose operation has been stopped (depressed).
[0079]
If it is determined in step S702 that there is no channel for reading the waveform data of the pad 30 whose operation has been stopped (depressed), the pad-off (STOP) process is terminated.
[0080]
On the other hand, if it is determined in step S702 that there is a channel that is reading the waveform data of the pad 30 whose operation has been stopped (depressed), the process proceeds to step S704 to instruct the channel to stop reading. Then, the pad-off (STOP) process is terminated. At this time, the management information indicating the waveform data of which pad 30 is being read in which channel and the assignment order are updated as the channel becomes inactive.
[0081]
Next, referring to the flowchart of the cluster reading end (STOP) processing shown in FIG. 8, when the electronic musical instrument is stopped, that is, in the normal mode, when reading of the cluster is notified from any channel. Processing will be described.
That is, when the operation of the electronic musical instrument is stopped, that is, in the normal mode, when the readout of the cluster is notified from any channel, the processing shown in the flowchart of the cluster readout end (STOP) processing in FIG. 8 is executed. Is.
[0082]
Note that processing similar to the cluster read end (STOP) processing shown in FIG. 8 is performed during recording of automatic performance data in the electronic musical instrument, that is, in the recording mode.
[0083]
In the flowchart of the cluster read end (STOP) process, in step S802, the waveform data assigned to the pad 30 corresponding to the waveform data being read in the channel where the cluster read has been completed is already stored in the read buffer READ. The next one cluster is read from the disk 14 and stored in the cluster that has been read, and this cluster read end (STOP) process is terminated.
[0084]
If all the waveform data has already been stored in the read buffer READ, the cluster read end (STOP) process is terminated without performing the process of step S802.
[0085]
Next, referring to the flowchart of the QT = 0 (STOP) process shown in FIG. 9, while the operation of the electronic musical instrument is stopped, that is, in the normal mode, the value of the data amount QT from any channel is “0”. The process when the fact that it has been notified will be described.
[0086]
That is, when the operation of the electronic musical instrument is stopped, that is, in the normal mode, when it is notified from any channel that the value of the data amount QT is “0”, this QT = 0 (STOP) process The processing shown in the flowchart is executed.
[0087]
In the flowchart of the QT = 0 (STOP) process, in step S902, a stop of reading is instructed to a channel whose data amount QT is “0”, and the channel is not used. Accordingly, the management information and assignment order indicating which waveform data of which pad 30 is read out in which channel is updated, and this QT = 0 (STOP) process is terminated.
[0088]
Next, referring to the flowchart of the pad-on (REC) process shown in FIG. 10, any pad 30 is operated (starts pressing) during recording of automatic performance data in this electronic musical instrument, that is, in the recording mode. A process when a read start instruction is issued will be described.
[0089]
That is, during recording of automatic performance data in this electronic musical instrument, that is, in the recording mode, when any pad 30 is operated (beginning pressing) and a read start instruction is issued, the pad on (REC) process of FIG. 10 is performed. The processing shown in the flowchart is executed.
[0090]
In the pad-on (REC) process flowchart, first, in step S1002, it is determined whether the channel corresponding to the currently selected track is being read out of waveform data. That is, when the pad 30 is operated, it is determined whether another pad 30 has already been operated and waveform data is being read.
[0091]
If it is determined in step S1002 that the channel corresponding to the currently selected track is being read out of waveform data, stop reading is instructed to that channel (step S1004), and the current selection of automatic performance data is performed. The note-off data is recorded along with the current time on the track being recorded (step S1006).
[0092]
As a result, in the playback mode, similarly to the time of recording, reading of the waveform data that has been read until then is interrupted in response to the start of reading of new waveform data.
[0093]
When the process of step S1006 is completed, or when it is determined in step S1002 that the channel corresponding to the currently selected track is not being read out of waveform data, the process proceeds to step S1008 and subsequent steps.
[0094]
In the processing after step S1008, similarly to the pad-on (STOP) processing, the waveform data of the first cluster and the second cluster in the start buffer START of the operated pad 30 are associated with the currently selected track. Is stored in the first cluster and the second cluster of the read buffer READ of the channel to be read (step S1008), the data amount QT of the waveform data to be read is set in that channel, and the read from the head of the first cluster is performed for this channel Is instructed to start (step S1010).
[0095]
Thereby, reading of the waveform data assigned to the operated pad 30 is started.
[0096]
When the process of step S1010 is completed, the process proceeds to step S1012, where the waveform data for the remaining two clusters are read from the disk 14 and transferred to the third cluster and the fourth cluster of the read buffer READ of that channel.
[0097]
When the processing of step S1012 is completed, the process proceeds to step S1014, where note-on data regarding the operated pad 30 of the current bank is recorded along with the current time on the currently selected track of the automatic performance data. End the on (REC) process.
[0098]
By the pad-on (REC) process described above, reading of waveform data is started according to the operated pad 30, and note-on data is recorded in the automatic performance data.
[0099]
Next, referring to the flowchart of the pad-off (REC) process shown in FIG. 11, any one of the pads 30 is stopped during the automatic performance data recording in the electronic musical instrument, that is, in the recording mode. A process when an instruction to stop reading is issued (after depressing the button) will be described.
[0100]
That is, during the recording of automatic performance data in this electronic musical instrument, that is, in the recording mode, when any pad 30 is stopped (depressed) and a reading stop instruction is issued, the pad of FIG. The processing shown in the flowchart of the off (REC) processing is executed.
[0101]
In the flowchart of this pad-off (REC) process, first, in step S1102, in the channel corresponding to the currently selected track, the waveform assigned to the pad 30 whose operation has been stopped (depressed). It is determined whether data is being read.
[0102]
If it is determined in step S1102 that the waveform data assigned to the pad 30 whose operation is stopped (depressed) is being read in the channel corresponding to the currently selected track. In step S1104, the channel is instructed to stop reading.
At this time, the management information indicating the waveform data of which pad 30 is being read in which channel and the assignment order are updated as the channel becomes inactive.
[0103]
When the process of step S1104 is completed, the process proceeds to step S1106, where note-off data is recorded along with the current time on the currently selected track of the automatic performance data, and this pad-off (REC) process is terminated.
[0104]
On the other hand, when it is determined in step S1102 that the waveform data assigned to the pad 30 whose operation has been stopped (depressed) has not been read in the channel corresponding to the currently selected track. (Note that in this case, the waveform data assigned to the pad 30 whose operation has been stopped (depressed) has been read to the end and the reading has been stopped, In the case where the assigned waveform data is read out, there are two cases), and the pad-off (REC) process is terminated as it is.
[0105]
Next, referring to the flowchart of the QT = 0 (REC) process shown in FIG. 12, during recording of automatic performance data in this electronic musical instrument, that is, in the recording mode, in the channel corresponding to the currently selected track. A process when notified that the value of the data amount QT is “0” will be described.
[0106]
That is, during recording of automatic performance data in this electronic musical instrument, that is, in the recording mode, when it is notified that the value of the data amount QT has become “0” in the channel corresponding to the currently selected track. The process shown in the flowchart of this QT = 0 (REC) process is executed.
[0107]
In the flowchart of the QT = 0 (REC) process, first, in step S1202, stop reading is instructed to the channel corresponding to the currently selected track.
[0108]
At this time, the management information indicating the waveform data of which pad 30 is being read in which channel and the assignment order are updated as the channel becomes inactive.
[0109]
When the process of step S1202 ends, the process proceeds to step S1204, note-off data is recorded along with the current time on the currently selected track of the automatic performance data, and the QT = 0 (REC) process ends.
[0110]
Next, processing when the playback (PLAY) operation element 36 is operated will be described with reference to the flowchart of playback processing shown in FIG.
[0111]
That is, this reproduction process is executed when the reproduction (PLAY) operation element 36 is operated.
[0112]
Although only the process for one track is shown here, the other tracks are similarly performed for the processes other than step S1310.
[0113]
In this electronic musical instrument, the waveform data is read from the disk 14 and transferred to the buffer READ before the playback timing of the automatic performance data, and the playback operation is performed by operating the playback (PLAY) operator 36. Sometimes, waveform data for four clusters corresponding to the note-on at the beginning of the automatic performance data is transferred to the read buffer READ.
[0114]
In the flowchart of this playback process, the mode is switched to the playback mode, and the leading automatic performance data (a set of note-on and note-off) is read (step S1302), and the current time of note-on and note-off is determined. The difference is set as a gate time (time length for reading a waveform) (step S1304).
[0115]
Next, the waveform data assigned to the bank and pad 30 indicated by the note-on read out is read from the disk 14 for one cluster from the head, and recorded in the first cluster of the read buffer READ of the channel corresponding to the track. Then, the gate time is subtracted by one cluster (step S1308).
[0116]
Subsequently, the current time is set to 0, the performance data at the beginning of each track is set as automatic performance data to be read in automatic performance data reproduction processing (see FIG. 14) described later, and a predetermined time for automatic performance data reproduction processing. By starting the activation every time, the reproduction of the automatic performance data is started (step S1310).
[0117]
In this electronic musical instrument, automatic performance data is read twice. That is, prior to reading the waveform data from the read buffer READ, the automatic performance data is read by this reproduction processing and cluster read end (PLAY) processing described later, and the waveform data is read from the disk 14 based on the read automatic performance data. The automatic performance data stored in the buffer READ is read out by the automatic performance data reproduction process, and the waveform data is read out from the buffer READ based on the read automatic performance data.
[0118]
Therefore, the performance data to be read in the reproduction process and the cluster read end (PLAY) process is different from the performance data to be read in the automatic performance data reproduction process.
[0119]
When the process of step S1310 ends, the process proceeds to the process of step S1312, and it is determined whether or not four clusters of the read buffer READ have been performed in the processes after step S1314.
[0120]
In step S1312, when it is determined that processing for four clusters of the read buffer READ has been performed in the processing after step S1314, the reproduction processing is terminated.
[0121]
On the other hand, in step S1312, when it is determined that the processing for four clusters of the read buffer READ is not performed in the processing after step S1314, the processing proceeds to the processing after step S1314.
[0122]
That is, in step S1314, it is determined whether the gate time is “0” or less.
[0123]
If it is determined in step S1314 that the gate time is not equal to or less than “0”, it indicates that there is still a continuation in the previously recorded waveform data, so the next one cluster is read from the disk 14 and read buffer. The data is stored in the cluster next to the cluster stored immediately before READ (step S1316), the gate time is subtracted by one cluster (step S1318), and the process returns to step S1312.
[0124]
On the other hand, if it is determined in step S1314 that the gate time is less than or equal to “0”, it indicates that the previously recorded waveform data is not continued, so the next automatic performance data is read (step S1320). The difference between the current time of note-on and note-off is set as the gate time (step S1322).
[0125]
When the processing in step S1322 ends, the process proceeds to step S1324, and the waveform data assigned to the bank and pad 30 indicated by the note-on read out is read from the disk 14 for one cluster from the beginning, and the channel corresponding to the track is read. The data is stored in the cluster next to the cluster stored immediately before the read buffer READ (step S1324), the gate time is subtracted by one cluster (step S1318), and the process returns to step S1312.
[0126]
FIG. 14 shows a flowchart of the automatic performance data reproduction process started in step S1310 of the reproduction process.
[0127]
When the start of the automatic performance data reproduction process is instructed by the reproduction process, the automatic performance data reproduction process is executed every predetermined time.
[0128]
Although only the processing for one track is shown here, this processing is similarly performed for other tracks.
[0129]
In the flowchart of this automatic performance data reproduction process, first, in step S1402, it is determined whether or not the current time coincides with the current time added to the automatic performance data to be read.
[0130]
If it is determined in step S1402 that the current time does not coincide with the current time added to the automatic performance data to be read, the automatic performance data reproduction process is terminated.
[0131]
On the other hand, if it is determined in step S1402 that the current time matches the current time added to the automatic performance data to be read, the process proceeds to step S1404, and the automatic performance data is read.
[0132]
When the process of step S1404 ends, the process proceeds to step S1406, and it is determined whether the read automatic performance data is a performance stop, note-on, or note-off.
[0133]
If it is determined in step S1406 that the read automatic performance data is a performance stop, the start of the automatic performance data reproduction process is stopped (step S1407), and the normal mode is restored.
On the other hand, if it is determined in step S1406 that the read automatic performance data is note-on, the channel corresponding to the track is instructed to start reading waveform data (step S1408).
[0134]
If it is determined in step S1406 that the read automatic performance data is note-off, the channel corresponding to the track is instructed to stop reading waveform data, and a notification that cluster reading is complete is sent. Issue (step S1410).
[0135]
When the process of step S1408 or step S1410 is completed, the next automatic performance data is read (step S1412), and then the process returns to step S1402 to repeat the process.
[0136]
Note that at the first note-on after the playback (PLAY) operator 36 is operated, the top of the first cluster of the read buffer READ is designated as the read start position by the playback process. In the subsequent note-on, the head of the next cluster after the cluster that has been read is designated as the read start position.
[0137]
Next, referring to the cluster reading end (PLAY) processing flowchart shown in FIG. 15, the reading of the cluster from one of the channels is completed during the playback of the automatic performance data in the electronic musical instrument, that is, in the playback mode. The processing when this is notified will be described.
[0138]
That is, during playback of automatic performance data in this electronic musical instrument, that is, in the playback mode, when it is informed that reading of the cluster is finished from any channel, the cluster reading end (PLAY) processing of FIG. 15 is executed. Is. The cluster read end (PLAY) process is to record the waveform data prior to the waveform data read timing in the cluster that has been read out.
[0139]
In the flowchart of the cluster read end (PLAY) process, first, in step 1502, it is determined whether or not the gate time is equal to or less than “0”.
[0140]
If it is determined in step S1502 that the gate time is not “0” or less, it indicates that there is a continuation in the previously recorded waveform data, so the waveform data for the next one cluster is read from the disk 14, The data is stored in the cluster that has been read (step S1504), the gate time is subtracted by one cluster (step S1506), and this cluster read end (PLAY) process is terminated.
[0141]
On the other hand, if it is determined in step S1502 that the gate time is equal to or less than “0”, it indicates that the previously recorded waveform data does not continue, so the next automatic performance data is read (step S1508). The difference between the current time of note-on and note-off is set as the gate time (step S1510).
[0142]
When the processing of step S1510 ends, the process proceeds to step S1512, and the waveform data assigned to the bank and pad 30 indicated by the note-on read is read from the disk 14 for one cluster from the beginning, and the cluster that has been read out is read. Recording is performed (step S1512), the gate time is subtracted by one cluster (step S1506), and this cluster read end (PLAY) process is terminated.
[0143]
Therefore, in the electronic musical instrument described above, when the pad 30 is operated in the normal mode, reading of the waveform data assigned to the pad 30 is started (pad-on (STOP) processing), and the operation of the pad 30 is performed. If the reading is stopped or the waveform data is read to the end, the reading is stopped (pad-off (STOP) processing, QT = 0 (STOP) processing).
[0144]
In the recording mode, a recording target track is first designated, and then the pad 30 is operated. Then, reading of the waveform data is started according to the operated pad 30, and note-on is recorded on the track designated as the automatic performance data together with the current time at the time of the operation (pad. ON (REC) processing).
[0145]
At this time, when a plurality of pads 30 are operated at the same time, reading of the waveform data assigned to the previously operated pad 30 is stopped and assigned to the newly operated pad 30. Reading of the waveform data is started. At this time, with respect to the pad 30 operated before, note-off is recorded on the track designated as automatic performance data together with the current time at that time.
[0146]
In the reproduction mode, first, waveform data corresponding to note-on of the automatic performance data at the head portion is read from the disk 14 for four clusters, recorded in the read buffer READ, and then reproduction is started ( Playback process).
[0147]
When the current time coincides with the current time of note-on or note-off in the automatic performance data, the note-on and note-off are read out, and the waveform data read in advance is read accordingly. Reading start and stop are instructed (automatic performance data reproduction processing).
[0148]
When reading of the waveform data for one cluster in the read buffer READ is completed, the waveform data for the next one cluster is read from the disk 14 and recorded in the read buffer READ.
[0149]
As described above, the waveform data is read from the disk 14 in advance and recorded in the read buffer READ before the timing for reading the waveform data from the read buffer READ.
[0150]
Note that even in automatic performance data in which a plurality of pads 30 are operated simultaneously, note-off is automatically written for the previously operated pad 30, so that the waveform corresponding to that pad 30 is recorded. Reading of data from the disk 14 is interrupted halfway.
[0151]
The embodiment described above may be modified as shown below.
(1) In the above-described embodiment, the automatic performance data is not reproduced for tracks other than the designated track in the recording mode. However, the present invention is not limited to this. It may be possible to reproduce the already recorded automatic performance data for tracks other than the designated track. In this way, it is possible to record the automatic performance data for the designated track while listening to the reproduction sound of the other track. In this case, processing similar to the reproduction processing shown in FIG. 13 is performed when the recording mode is set. However, the processing of step S1310 is not performed at this time, but is performed at the time of the first operation of the pad 30 after the recording mode is set.
[0152]
It should be noted that when a predetermined time has elapsed since the recording mode was entered, for example, a predetermined tempo was set, and a time corresponding to one bar had elapsed while a click sound was generated based on the set tempo after the recording mode was entered. When the time is 0 and the elapsed time from this time to the current time is the current time, when the recording mode is set, the processing similar to the reproduction processing shown in FIG. 13 is performed except for the processing in step S1310. Then, the process of step S1310 is performed when the time for one measure has elapsed.
(2) In the above-described embodiment, when a plurality of pads 30 are operated (pressed) at the same time, data for instructing to stop reading waveform data corresponding to the pad 30 that has been operated (pressed) from before is displayed. The waveform data reading is stopped when the data is stored and reproduced. However, the present invention is not limited to this, and even when a plurality of pads 30 are operated (pressed) at the same time, the waveform data is simply read out. When data for instructing the start of reading the next waveform data is reproduced in a state in which the readout of the waveform data is instructed at the time of reproducing the automatic performance data, the data for instructing the start is stored. The reading of the waveform data may be stopped. Specifically, the above-described embodiment may be modified as described below.
[0153]
First, note-off includes information indicating which pad operation stop (press release) in any bank. In other words, in the above-described embodiment, note-on and note-off are always recorded alternately. However, in this modification, since another note-on is allowed to be recorded next to a certain note-on, any of the banks in any bank is also included in the note-off. The information indicating whether the operation of the pad is stopped (press release) is included.
[0154]
Then, in the flowchart of the pad-on (REC) process shown in FIG. 10, the processing content of step S1006 “Record note-off” is deleted.
[0155]
Further, the pad-off (REC) process shown in the flowchart of FIG. 11 is replaced with the process of the flowchart shown in FIG. That is, in the above-described embodiment, when the operation of the pad 30 is stopped (when the press is released), the waveform data of the pad 30 is read to the end and the waveform of another pad 30 is read. When the data is being read out, note-off of the pad 30 whose operation has been stopped (depressed) has already been recorded, so the waveform data corresponding to the pad 30 is read out. Whether or not he / she is in the middle is a condition for recording a note-off. However, in the modified example, even when the operation of the pad 30 is stopped (pressing is released) and the waveform data of another pad 30 is being read, the operation is still stopped ( Since the note-off of the pad 30 (which has been released) is not recorded, the condition for recording the note-off is whether the waveform data of the pad 30 has been read to the end, ie, The note-off of the pad 30 is replaced with whether it has already been recorded.
[0156]
Further, in the flowchart of the reproduction processing shown in FIG. 13, the processing contents of step S1302 “read the first automatic performance data” and step S1304 “set the gate time” are set to “first automatic performance data (first note-on data)”. And a note-off corresponding to the note-on immediately after that or another bank, a set of note-on corresponding to the pad), and the difference between the current time of the subsequent note-off and the previous note-on, Alternatively, the difference between the current time of the later note-on and the previous note-on is set as the gate time. Similarly, the processing contents of step S1320 “read next automatic performance data” and step S1322 “set gate time” are changed to “next automatic performance data (next note-on and next note-on immediately after that”). The corresponding note-off or note-on pair corresponding to another bank or pad) is read, and the current time difference between the later note-off and the previous note-on, or the later note-on and earlier The difference between the current time and the note-on time is set as the gate time. " Further, in the flowchart of the automatic performance data reproduction process shown in FIG. 14, the processing content of step S1408 “Read start instruction” is set to “When waveform data is being read in the channel corresponding to the reproduction target track. (When processing related to note-off of another bank or pad has not been performed yet), the channel is instructed to stop reading, and further, the start of reading from the cluster next to the cluster that has been read is instructed. Replace with. Furthermore, the processing content of the step S1410 “Reading stop processing” is “If the waveform data corresponding to the note-off is being read in the corresponding channel, the channel is instructed to stop reading the waveform data. Replace with.
[0157]
Further, in the flowchart of the cluster read end (PLAY) process shown in FIG. 15, the processing contents of step S1508 “read next automatic performance data” and step S1510 “set gate time” are described in the reproduction process of FIG. As in the case of the flow chart of “The next automatic performance data (the next note-on and the note-on corresponding to the note-on immediately after that or a set of note-on corresponding to another bank and pad) The gate time is set to the difference between the current time of reading and the subsequent note-off and the previous note-on, or the difference of the current time between the subsequent note-on and the previous note-on. Replace.
(3) In the above-described embodiment, reading of waveform data is started in response to the operation (pressing) of the pad 30, and reading of the waveform data is stopped when the operation of the pad 30 is stopped (when the pressing is released). Without being limited to this, reading of waveform data is started in response to the operation (pressing) of the pad 30, and thereafter, the waveform data is stored even if the operation of the pad 30 is stopped (the pressing is released). The reading may not be stopped until the reading is completed. In this case, note-off data becomes invalid, so that only note-on may be recorded in response to a single operation (pressing) of the pad 30 (that is, even if the operation of the pad 30 is stopped). (Even if the press is released, note-off is not stored.)
(4) In the above-described embodiment, only one waveform data per track can be read out simultaneously. Therefore, when automatic performance data is recorded, automatic performance data that allows only one waveform data to be read out simultaneously is allowed. However, the present invention is not limited to this, and when a plurality of waveform data can be read simultaneously per track, the waveform data can be read simultaneously by the number of waveform data that can be read. Automatic performance data that allows the user to perform the process may be created.
(5) In the above-described embodiment, only one automatic performance data, that is, one tune is recorded, and when a reproduction start is instructed, a predetermined amount (for four clusters in the embodiment) The waveform data is transferred from the disk 14 to the semiconductor memory 16. However, the present invention is not limited to this, and a plurality of automatic performance data, that is, a plurality of songs can be recorded. After the data is selected, playback start is instructed. At this time, when automatic performance data to be played back is selected, a predetermined amount of waveform data is transferred from the disk 14 to the semiconductor memory 16 to start playback. Simultaneously with the instruction, reading of the waveform data from the semiconductor memory 16 may be started. In this way, the performance can be started immediately after the reproduction start instruction.
(6) In the above-described embodiment, the elapsed time from the point of time when the pad 30 is operated first after the note-on and note-off are performed as the automatic performance data at a predetermined time, specifically the recording mode. By adding information indicating the current time, the timing at which the note-on and note-off are valid in the playback mode is indicated, but note-on and note-off are valid in another data format. You may make it show the timing which becomes.
[0158]
For example, information indicating the elapsed time from the time when the previous automatic performance data is valid until the time when the note-on or note-off is valid is added to the note-on and note-off. To do.
[0159]
In the embodiment described above, note-on is recorded as information for instructing to start reading waveform data, and note-off is recorded as information for instructing to stop reading waveform data. Yes. That is, the information for instructing the start of reading waveform data and the information for instructing to stop reading waveform data are separate information, but the information for instructing to start reading waveform data and the information to instruct to stop reading waveform data May be a set of information.
[0160]
When the information for instructing to start reading waveform data and the information for instructing to stop reading waveform data are set as one set of information, for example, the time to start reading waveform data is indicated as the set of information. Information and information indicating the elapsed time from the time when reading of waveform data is started to the time when reading of waveform data is stopped are stored. In this case, in the recording mode, the elapsed time from when the pad 30 is operated and the reading of the waveform data is started is measured, and when the operation of the pad 30 is released or during the reading of the waveform data, When the pad 30 is operated, the measured elapsed time is measured from the time when reading of the waveform data of the set of information related to the waveform data being read is started to the time when reading of the waveform data is stopped. Is stored as the elapsed time. In the reproduction mode, when the current time coincides with the time when the waveform data indicated by the one set of information starts to be read out, the start of reading out the waveform data is instructed, and the elapsed time from that time is the time 1 The stop of reading of the waveform data is instructed at the time when the elapsed time from the time when the reading of the waveform data indicated by the set information starts to the time when the reading of the waveform data is stopped is coincident.
(7) In the above-described embodiment, note-off for instructing to stop reading waveform data instructed to start reading by note-on is recorded at a timing different from that for note-on. Immediately after note-on is recorded (step S1014), note-off instructing to stop reading waveform data instructed to start reading by the note-on may be stored.
[0161]
However, in this case, information indicating the current time of note-off is written at the timing of recording the original note-off (steps S1006 and S1106), or information indicating the current time of note-off is written to the original note. Update is continued as time elapses until the timing of recording OFF (steps S1006 and S1106). In the latter case, after the timing of recording the original note-off, information indicating the original current time is added to the note-off.
(8) In the embodiment described above, the waveform data is read while the pad 30 is kept pressed. However, the waveform data is read in a different operation mode. Also good.
[0162]
For example, waveform data reading starts when the pad 30 is first pressed, continues reading waveform data even when the pad 30 is released, and stops reading waveform data when the pad 30 is pressed again. You may make it do. Alternatively, the waveform data reading is started when the pad 30 is pressed, the waveform data reading is continued even when the pad 30 is released, and the waveform data reading is stopped when the waveform data is read to the end. You may do it. In any of these cases, the present invention can be applied, and the waveform data has already been read out when the pad 30 is pressed by the same processing as in steps S1002, S1004, and S1006. If it is in the middle, the waveform reading is stopped, and information instructing the waveform data reading stop may be recorded.
[0163]
In the latter case, when a certain pad 30 is pressed and the same pad 30 is pressed again while the waveform data is being read out, the same processing as in the flowchart shown in FIG. It is only necessary to stop reading the waveform that has been read up to this point, record information instructing to stop reading the waveform data, and read the waveform data again from the beginning.
[0164]
【The invention's effect】
Since the present invention is configured as described above, when an operator assigned with waveform data is operated (played), an instruction to start reading waveform data assigned to the operator is stored. In the above, there is an excellent effect that it is possible to improve processing when a plurality of operators are operated simultaneously.
[Brief description of the drawings]
FIG. 1 is a block diagram showing the overall configuration of an electronic musical instrument according to the present invention.
FIG. 2 is an explanatory diagram conceptually showing a format of a storage area of a disc.
FIG. 3 is an explanatory diagram conceptually showing a format of a start buffer START.
FIG. 4 is an explanatory diagram conceptually showing a format of a read buffer READ.
FIG. 5 is a flowchart of bank switching processing.
FIG. 6 is a flowchart of pad-on (STOP) processing.
FIG. 7 is a flowchart of pad-off (STOP) processing.
FIG. 8 is a flowchart of a cluster read end (STOP) process.
FIG. 9 is a flowchart of QT = 0 (STOP) processing.
FIG. 10 is a flowchart of pad-on (REC) processing.
FIG. 11 is a flowchart of pad-off (REC) processing.
FIG. 12 is a flowchart of QT = 0 (REC) processing.
FIG. 13 is a flowchart of a reproduction process.
FIG. 14 is a flowchart of automatic performance data reproduction processing.
FIG. 15 is a flowchart of cluster read end (PLAY) processing;
FIG. 16 is a flowchart of pad-off (REC) processing according to a modification of the embodiment.
[Explanation of symbols]
10 Central processing unit (CPU)
12 Analog / digital converter (A / D)
14 discs
16 Semiconductor memory
18 Reader
20 Operation panel
22 Digital / analog converter (D / A)
30 pads
32 track (TRACK) designator
34 Record (REC) control
36 Playback (PLAY) control
38 Stop (STOP) control
40 Bank switching operator

Claims (2)

A plurality of controls each assigned waveform data;
Based on the operation of the operation element in the recording state, at least information for instructing the start of reading of the waveform data assigned to the operation element is stored and the waveform data assigned to the operation element is read out and in the reproduction state Automatic performance means for reproducing information instructing to start reading the waveform data;
Information indicating the start of reading of waveform data assigned to the new operator by the automatic performance means when a new operator is operated while one waveform data is being read in the recording state. Control means for storing, in the automatic performance means, information for instructing to stop reading of the waveform data being read when storing the waveform data assigned to the new operator ,
Reading of the waveform data is started in accordance with information instructing to start reading out the waveform data reproduced by the automatic performance means, and reading of the waveform data is stopped in accordance with information instructing to stop reading out the waveform data. An electronic musical instrument having waveform data reading means. The electronic musical instrument according to claim 1,
The waveform data reading means includes
First storage means for storing waveform data in advance;
Second storage means for temporarily storing the waveform data stored in the first storage means;
Transfer means for transferring waveform data from the first storage means to the second storage means prior to reproduction by the automatic performance means;
Reading start means for starting reading of the waveform data stored in the second storage means in accordance with information instructing to start reading of the waveform data reproduced in accordance with the timing of reproduction by the automatic performance means; ,
A waveform corresponding to information instructing to start reading the waveform data at a time point later than the current playback timing point by the automatic performance means in the storage area from which the waveform data has already been read in the second storage means Data is transferred from the first storage means, and the first storage means corresponds to information instructing to stop reading the waveform data corresponding to information instructing to start reading the waveform data. And an end means for terminating the transfer from the electronic musical instrument.

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