JP3075155B2 - Processing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a processing device capable of efficiently outputting a parameter defining an operation.

[0002]

2. Description of the Related Art The operation of an electronic musical instrument such as a sound source device currently in practical use is defined by a plurality of parameters. When the sound source device is started up, the parameters of default values (initial setting values) are automatically set, so if the performance data (note-on data, etc.) is input as it is, the tone will be sounded, In order to synthesize a better musical tone by utilizing it at a high level, parameters are individually edited as needed to set a tone with a desired tone and effect. In the case of automatic performance, parameters are written at the beginning of the automatic performance data, and after transmitting these parameters to the tone generator, performance data such as note-on data is transmitted to synthesize a desired musical tone.

For this reason, when creating the automatic performance data, parameters are written at the beginning of the automatic performance data in order to set up the tone generator so that a desired tone and effect can be obtained. Since it is obtained by actually editing and sounding, the parameters stored in the tone generator when the desired tone is obtained are written in the automatic performance data.

The following two methods are used to write the timbre parameters stored in the tone generator into the automatic performance data.
There was a method as follows. The first method is to read out all parameters in the sound source device by bulk dump, copy this to the beginning of the automatic performance data and write it, and the second method is to edit (change) the default value of the parameter. In this method, the changed values of the parameters are manually written into the automatic performance data while the values are remembered.

[0005]

However, the current sound source module is extremely sophisticated, and the number of parameters is several kilobytes. For this reason, the first bulk dump method has the drawbacks that it takes time to dump the parameters and the data amount of the automatic performance data is large. Further, at the time of starting the automatic performance, the bulk data is transmitted to the tone generator to set up the tone generator. Therefore, it takes a long waiting time until the musical tone is actually generated after the automatic performance is started, which is not efficient.

In the second manual driving method,
When many parameters are edited, there is a drawback in that it takes a lot of time and effort to drive, and errors easily occur.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a processing device capable of efficiently performing a parameter dump by dumping only a change from a default state.

[0008]

[0009]

According to the present invention, a plurality of parameters are stored in advance, and in a processing apparatus which performs processing based on the parameters, a changing means for changing the parameters; And a series of parameter groups including a plurality of parameters changed by the change unit among the plurality of parameters when an external output instruction of the parameters is input, and one of the series of parameter groups. Division parameters
And a transmission control means for editing one message including the address and outputting the edited message to the outside.

According to the present invention, in a processing apparatus which stores a plurality of parameters in advance and performs processing based on the parameters, a changing means for changing the parameters, and a transmission instruction means for inputting an external output command of the parameters. When an external output command of the parameter is input,
The plurality of parameters changed by the changing unit among the plurality of parameters are divided into groups for each parameter that are continuous within a predetermined interval, and a series of parameters including the changed parameters is divided into one group for each group. Transmission control means for editing the message into two messages and outputting the edited message to the outside.

The above invention will be described with reference to the drawings. Taking the dump process of the sound source module as an example, the dump process is executed when a default value, which is an initial setting value, is changed and the changed content is stored externally. In FIG. 1A, it is assumed that the upper row is a default value and the lower row is a parameter value changed by the user from the default value. In this example, the user has rewritten only the data at address 1 and address 5.

In the conventional bulk dump process, FIG.
As shown in FIG. 7, all data was dumped even when only two parameters were changed. Although only 10 bytes are shown in this example, since the parameters of the actual sound source module are several kilobytes, the size of the dump data is also several kilobytes.

In the MIDI format, when parameters are dumped, a system exclusive data format is used. The system exclusive data includes a header of more than ten bytes, a data body, and
It consists of the code of F7 which is a footer.

[0014] On the other hand, a dump for each user change location
In the method of creating the data, as shown in FIG. (B), to edit only the change position of the user as a dump data (system exclusive data). That is, when there are a plurality of changed portions, a plurality of dump data are edited. Therefore, in the case of FIG. 7A, two data, dump data for dumping data at address 1 and dump data for dumping data at address 5 , are edited. Each dump data is composed of a header of more than 10 bytes, address data of 2 bytes, a parameter body of 1 byte, and a footer of 1 byte.
A data amount of 0 bytes or less is sufficient. Hereinafter, this method, that is, a method of creating dump data for each user change location, is referred to as a differential dump (type 1).

By the way, in the above-mentioned difference dump, when there are many changed parts by the user from the parameters of the default values, a header and a footer are required for each changed parameter, so that the amount of data cannot be saved so much.

Therefore, according to the present invention, when there are a plurality of changed portions in a nearby address, these are edited into one dump data to save the header size. This method is called a differential dump (type 2).
In the example of FIG. 9A, three parameters (three bytes) are interposed between the parameter at the address 01 and the parameter at the address 05. However, when these are edited into one dump data, the header of the dump data is edited. Size 1
Assuming 0 bytes, the data amount is 18 bytes of header + address + data body + footer (10 + 2 + 5 + 1). On the other hand, in the method of the differential dump (type 1), that is, the method of individually creating dump data for each changed portion, 28 bytes of 14 bytes × 2 are required. According to the method of (1), the data amount of 10 bytes can be saved as compared with the differential dump (type 1) method.

Considering this in general, if there are two or more changed portions within the byte size of the header + footer + address data (13 bytes in the above example), the continuous address is set starting from the first changed portion. By configuring the dump data to output a plurality of data at the same time, the total data amount can be further reduced.

Therefore , in the present invention, FIG.
As shown in the figure, if the changed parts are continuous within an interval of 13 bytes or less, they are collected into one dump data,
The data amount can be minimized as a whole by dividing and editing the dump data for each portion where the changed portion is separated by 13 bytes or more. As described above, whether to perform a type 1 differential dump when performing a differential dump, to perform a type 2 differential dump, and to determine where to partition when performing a type 2 differential dump, is determined by the interval between changed portions. The method of determining the smaller data amount is called an AI dump.

[0019]

FIG. 2 is a diagram showing the configuration of an automatic performance system to which the present invention is applied. In this embodiment, the sound source module 3 dumps parameters to the personal computer 1. A MIDI interface 2 is connected to the personal computer 1 and the MID
MIDI IN terminal of I interface 2, MIDI
A sound source module 3 is connected to an OUT terminal, and a keyboard 4 as a MIDI controller is connected to a MIDI TRU terminal of the sound source module.

The personal computer 1 has a sequence program for recording, editing and executing automatic performance data. The sequence program has a function of editing MIDI data or the like input from the keyboard 4 into automatic performance data and recording the data, and a function of sequentially converting the recorded automatic performance data according to a time clock.
It has an automatic performance function to output to When the automatic performance data (MIDI data) is input, the tone generator module 3 synthesizes and outputs a tone signal corresponding to the data.

FIG. 3A is a block diagram of the sound source module 3. The MIDI interface 10 is connected to the controller 11. The controller 11 is composed of a microcomputer, and performs data transmission / reception between the tone generator module and other devices, and controls the operation of the tone synthesizer 15 and the like. In addition to the MIDI interface 10, the controller 11 controls a parameter register 13 that stores parameters defining the operation of the tone synthesis unit 15, a ROM 12 that stores default values of the parameters, and controls the tone synthesis operation of the tone synthesis unit 15. A performance data buffer 14 for storing performance execution data and an operation panel 17 are connected. The parameter register 13 and the performance data buffer 14 are connected to the tone synthesizer 15. The tone synthesizer 15 is an LSI for tone synthesis of PCM system.
And the waveform memory 16 is connected. The waveform memory 16 stores tone waveform data of a plurality of tones.

When the power is turned on or when an all reset command is input, a default value stored in the ROM 12 is set in the parameter register 13. Various parameters such as PAN and effects are stored in the parameter register 13 as shown in FIG. Also, M
When parameter change data is input from the IDI interface 10 or when a change value is input from the operation panel 17, the contents of the parameter register 13 are rewritten.

Furthermore, when a parameter dump command is input from the MIDI interface 10 or the operation panel 17, the contents stored in the parameter register 13 are output to the outside via the MIDI interface 10. This parameter dump is performed by the AI dump method described above.

When note-on data is written to the performance data buffer 14 during automatic performance, the tone synthesizer 15 sends the tone waveform data designated by the tone number (program number) stored in the parameter register 13. Is read out to synthesize a basic tone waveform signal. Further, the tone synthesizer 15 reads parameters from the parameter register 13 and processes the basic tone waveform signal to form a final tone signal. The tone signal generated by the tone synthesizer 15 is output to an audio output terminal 18.
Output from

FIGS. 4 and 5 are flowcharts showing the operation of the tone generator module 3. FIG. The sound module 3
The parameter register 13 and the performance data buffer 14 are not backed up by a battery, and all the stored contents are cleared when the power is turned off.

Therefore, when the power is turned on, as shown in FIG. 4A, the controller 11 reads default values of all parameters from the ROM 12 and sets them in the parameter register 13 (s1).

Next, in FIG. 2B, during operation of the tone generator module 3, the buffer of the MIDI interface 10 and the buffer of the operation panel 17 are constantly scanned (s1).
0, s12), if data is stored in the buffer (s11, s13), whether this data is a command for instructing an all data reset (s14), or change of a parameter that defines the operation of the musical sound synthesizer Value (s
16) It is determined whether the data is performance execution data (s18). In the case of the all data reset command, the process proceeds from s14 to s15, where the parameter register 13 and the performance data buffer 14 are cleared, and a default value is read from the ROM 12 and set in the parameter register 13. In the case of a parameter change value, the change value is stored in the corresponding area of the parameter register 13 (s17). If the data is performance execution data, the performance data is set in the performance data buffer 14 (s19). If the contents of the buffer are other than those described above, a process corresponding to the contents is executed. The corresponding process includes a parameter dump process described with reference to FIG.

FIG. 5 is a flowchart showing the parameter dump processing. When a parameter dump command is input from the personal computer 1 or the operation panel 17 (s30), the following operation is performed. First, the contents of the parameter register 13 are compared with the contents (default values) of the ROM 12 to extract a changed part (s31). Based on the address interval of each changed portion, the type of the dump message of the differential dump and the divided portion where the type is edited are determined (s3
2). The division and the type of the dump message are determined in FIG.
As shown in (E), parameters that are continuous at intervals within the number of bytes of header + footer + address data are edited as the same dump data, and parameters that are further apart are separated as different dump data. You only need to divide it so that it is edited. The divided changed parts are edited into the data of the dump data (s33). Edit only one change to type 1 dump data,
Those containing two or more changed portions are edited into type 2 dump data, including parameters that have not been changed between them. In the case where the number of changed portions is extremely large, the conventional bulk dump data may be selected as the message format having the smallest data amount. The edited data is output to the outside via the MIDI interface 10 (s34).

In s31, the contents of the parameter register 31 and the contents of the ROM 12 are compared to extract the changed part. However, if the change history after the all data reset is stored, the history is stored. It becomes the extracted data of the changed part as it is.

FIG. 6 is a flowchart showing the operation when the personal computer 1 dumps parameters from the tone generator module 3. First, sound module 3
, A parameter dump request (parameter dump command) is transmitted (s40). The sound source module 3 transmits the parameter by executing the operation of FIG. 5 in response to this request. The personal computer 1 receives this dump parameter (s41). Then, the dump data is written at the head of the automatic performance data (sequence data) recorded at that time (s42). This writing may be performed at the beginning of each track for each MIDI channel (track), or a separate track for sound source setting may be created, and all dump data may be written to that track. . Thereby, even when the parameters for setting the tone generator module 3 are written at the beginning of the automatic performance data, the parameters can be dumped with the smallest data amount, so that the data amount of the automatic performance data can be reduced.

The dump data is transmitted to the sound source module 3 prior to the performance data at the start of the automatic performance. The sound source module 3 decodes the dump data received from the personal computer 1 and determines whether the dump data is bulk dump data, type 1 differential dump data, or type 2 differential dump data. The data received based on this determination is stored in the parameter register 13.
Is written in the predetermined area. As a result, the parameters of the sound source module 3 can be set with a small amount of data, so that the time required for setting the parameters at the start of the automatic performance can be shortened. If the all data reset command is always transmitted at the start of the automatic performance, the setup from the default state can be performed even when the sound source module 3 is used after the power is turned on.

FIG. 7 is a diagram showing the structure of the automatic performance data stored in the personal computer 1. The automatic performance data includes a plurality of tracks, and each track corresponds to a different MIDI channel. Individual performance execution data is written in each track. The performance execution data is composed of so-called channel data such as note-on event data and note-off event data for generating and silencing a musical tone. on the other hand,
Sound source setting data for setting up the sound source module 3 is written in the automatic performance data prior to the performance execution data. The sound source setting data includes parameters that define the operation of the tone synthesizer of the sound source module, and is used to return the parameters dumped from the sound source module 3 to the sound source module 3 for setting.

In the automatic performance data shown in FIG. 3A, sound source setting data for each track (MIDI channel) is written at the head of each track. In the automatic performance data of FIG. 3B, a sound source setting track for storing only the sound source setting data of all the tracks is provided separately from the plurality of automatic performance tracks. In any case, the sound source module 3 is set to the state at the time of automatic performance recording by transmitting all sound source setting data (sound source parameters) to the sound source before the actual automatic performance starts.

In this embodiment, the tone generator module 3 is a PCM type tone generator which forms a tone signal by reading tone waveform data from a waveform memory. For example, FM sound source and physical model sound source (Japanese Unexamined Patent Publication No.
-293898)), one MID
Numerous parameters related to tone signal formation are rewritten by I data (program change data).
In such a case, the parameters are hierarchized, and the default program (tone) number is compared with the currently set program number. To send). Then, the values of these parameters are inspected using the musical tone signal forming parameters loaded with this program number as default values, and only those different from those are dumped as a difference. Thus, even when one parameter has a function of calling another parameter, the data amount can be minimized. When loading parameters dumped in this manner into the tone generator module, the program change data may be transmitted first, and then the differential dump data may be transmitted. Note that this hierarchical system is not limited to program change data.

[0035]

[0036]

Effect of the Invention] The present invention, when outputting a parameter, a plurality of parameters that have been changed from the initial setting value by editing a single message so as to output (type 2 difference dump). This makes it possible to perform a dump process with a small data amount when many parameters are changed. This dump data is
Enter parameters after initializing the parameters to their default values.
To set this dump data at any time.
can do. This allows all conventional parameters to be
The amount of data is smaller than when dumping
Thus, the time required for dumping and setting can be shortened.

Further, according to the present invention, when outputting a parameter, it is determined whether to output a type 1 differential dump or a type 2 differential dump for each changed parameter, and the data amount is small. By outputting the parameter, the parameter can be output with the minimum data amount regardless of how the parameter is changed.

[Brief description of the drawings]

FIG. 1 is a diagram for explaining a parameter transfer method according to the present invention;

FIG. 2 is a diagram showing a configuration of a DTM system to which the present invention is applied;

FIG. 3 is a view for explaining a sound source module used in the DTM system.

FIG. 4 is a flowchart showing the operation of the sound source module.

FIG. 5 is a flowchart showing a parameter output operation of the sound source module.

FIG. 6 is a flowchart showing the operation of a personal computer used in the DPM system.

FIG. 7 is a diagram showing an example of automatic performance data used in the DTM system.

[Explanation of symbols]

1-personal computer, 2-sound source module, 1
1-controller, 12-ROM, 13-parameter register, 15-music sound synthesizer

Claims (2)

(57) [Claims] 1. A method according to claim 1, wherein a plurality of parameters are stored in advance.
In a processing device that performs processing based on the parameter, a changing unit that changes the parameter; a transmission instruction unit that inputs an external output command of the parameter; A series of parameter groups including a plurality of parameters changed by the changing unit among the parameters ;
A transmission control means for editing one message including the addresses of some of the parameters in the parameter group and outputting the edited message to the outside. 2. A plurality of parameters are stored in advance,
In a processing device that performs processing based on the parameter, a changing unit that changes the parameter; a transmission instruction unit that inputs an external output command of the parameter; A plurality of parameters changed by the change unit among the parameters are divided into groups for each parameter that are continuous within a predetermined interval, and a series of parameters including the changed parameters are formed into one message for each group. And a transmission control means for editing and outputting to the outside.