JPH10228282A - Sound source device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realized a sound source device which can handle MIDI data having many simultaneously generated sounds and eliminate a feeling of auditory disorder without being limited by the maximum number of simultaneously generated sounds. SOLUTION: When new sound generation is requested in MIDI data, an MPU 200 judges whether or not there is a free area in an array 210 and stores sound generation data on the new sound in the free area when there is the free area to generate the new sound. When there is no free area in the array 210, the sound with the smallest volume which is being generated is searched for and noted off, and sound generation data on the sound is removed from the array 210 to put free areas forward, thereby preparing a free area for storing the new data. Then the sound generation data on the new sound is stored in the free area and the new sound is noted on in response to that, so when sound generation exceeding the maximum number of simultaneously generated sounds of the sound source is requested, the generation of the sound with the smallest volume is stopped and switching to the new sound generation is performed to eliminate auditory unnaturalness of the sound.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, MIDI (Musical Instrument Digital Interface) as a sound signal.
ace) The present invention relates to a sound source device that receives data and generates an audio signal corresponding to the data.

[0002]

2. Description of the Related Art Sound generation software such as a DTM (Desk Top Music) sound source, a communication karaoke, an electronic musical instrument, and the like are provided using MIDI called sound control data (hereinafter referred to as MID).
A sound generation operation is performed based on I data). MIDI
The data is sound control data for causing a musical instrument such as a DTM sound source or an electronic musical instrument to play a specific musical tone. MI
In the DI data, various kinds of information for controlling sound generation are described in the form of data. The sound source device records these data,
For example, a sound is generated based on data such as note-on to sound and note-off to mute. Figure 16 is MIDI
1 shows an example of a configuration of a system that generates an audio signal such as music using data.

As shown in FIG. 16, this system includes, for example, a data generation unit 10 for generating MIDI data constituted by a personal computer (personal computer) or the like.
MIDI data cable 2 for transferring DI data
0, a sound source device 30 composed of a DTM sound source, an audio cable 40 for transferring a sound (audio) signal output from the sound source device 30, an amplifier 50 for amplifying the audio signal, and conversion of the output signal of the amplifier into an actual sound. Speaker 60.

[0004] The sound source device 30 includes an interface 31,
It comprises an MPU (Micro Processing Unit) 32, a sound source 33 and a digital / analog converter (DAC) 34.

[0005] MIDI data from a MIDI cable is input to an MPU 32 via an interface 31. The MPU 32 receives the MIDI data from the interface 31, performs processing in accordance with the MIDI data, and outputs an utterance signal to the sound source 33. The sound source 33 generates a digital signal indicating the amplitude of the audio signal indicated by the MIDI data based on the signal from the MPU 32, and outputs the digital signal to the DAC 34.
DAC 34 converts the digital signal into an analog signal,
Output to the audio cable 40.

[0006] As shown in FIG. 17, SMF (Standard MIDI File), which is a chunk of MIDI data, is processed and converted by an application program, and the converted MIDI data is converted into an audio signal by a voice generating device. There are also processing means.

In any case, the MPU or the application program converts MIDI data according to a predetermined rule, and controls a tone generated by the tone generator.
FIG. 18 shows a part of a MIDI data event message. With the above-described system, a musical tone corresponding to the MIDI data generated by the personal computer 10 or the like is generated.

[0008]

By the way, in the above-mentioned conventional sound source device, the maximum number of simultaneous sounds is determined by the structure of the device, and the MI which indicates the number of simultaneous sounds higher than the maximum number of sounds.
When a sound is generated in accordance with DI data, there is a problem that a sound that sounds unnatural is generated.

The commonly used Genera
According to the basic specification of l-MIDI, when a sound with different priorities according to channels is instructed, the rhythm channel 10
Is the highest priority, 10>1>2>...>9>11>...> 1
Import MIDI data with a priority of 6. But,
This method is effective for MIDI data that is well-known and consciously created for the channel priorities. However, most of the actually used MIDI data does not satisfy the above conditions, so Sounds unnatural.

Further, since the degree of the unnaturalness becomes more pronounced as the maximum number of simultaneous sounds of the sound source device is exceeded, the MIDI data created in the sound source device having a large number of simultaneous sounds is transmitted to the sound source device having a small number of simultaneous sounds. Diversion is difficult. For example, recently, a sound source device having a maximum polyphony of 64 has been developed, and in order to maximize the performance of such a sound source device having a large maximum polyphony, the MIDI generated according to the maximum polyphony is generated. Data is used. However, it is difficult to divert the MIDI data generated in this way to a generally used tone generator having a maximum of 24 simultaneous sounds. For this reason, when receiving MIDI data indicating a polyphony that exceeds the maximum polyphony of the tone generator, it is necessary to perform some processing on the MIDI data in the tone generator to eliminate unnaturalness in hearing. .

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to be able to cope with a sound signal having a large number of simultaneous sounds, for example, MIDI data, and to provide an audible sound without being limited by the maximum simultaneous sound number. An object of the present invention is to provide a sound source device that can eliminate discomfort.

[0012]

In order to achieve the above object, the present invention has a plurality of sounding means, each sounding means being controlled to generate a sound having a characteristic based on an instruction of a sounding signal. The apparatus, when receiving an instruction to generate a plurality of sounds exceeding the number of the sounding means from the sounding signal, compares the characteristics of the sound being generated by each sounding means with the sound specified by the sounding signal. Then, there is provided a sound emission control means for stopping the sound emission means for generating a predetermined sound among the sound emission means in accordance with the comparison result, and for generating the sound specified by the sound emission signal.

Further, in the present invention, out of the plurality of sounding means, the sounding means for generating a low-volume sound or the sounding means for generating a low-pitched sound are stopped, and the sound specified by the sounding signal is reproduced. generate

Further, in the present invention, the sound generation control means includes:
Out of the plurality of sounding means, the sound of the sounding means that generates the same tone as the sound specified by the sounding signal is stopped, and the sound specified by the sounding signal is generated, or generated by the plurality of sounding means. A sound having the same timbre is detected, any one of the sounds is stopped, and a sound specified by the sound signal is generated.

Further, in the present invention, the sounding control means weights each sounding means according to the priority of the channel, and assigns a first point to each sounding means; Weighting means for weighting each sounding means in accordance with the characteristic of each sounding means, and a second weighting means for giving each sounding means a second point, and a sum for calculating the sum of the first and second points of each sounding means. Means, and switching means for stopping one sound and generating a sound specified by the sound signal in accordance with the total number of points of each sound means.

According to the present invention, when it is instructed by the sounding signal to generate a plurality of sounds exceeding the maximum number of simultaneous sounds of the sound source device limited by the number of sounding means, each sounding control means causes The characteristics of the sound generated by the sounding means and the sound specified by the sounding signal are compared, and a predetermined sounding means of the plurality of sounding means is stopped according to the comparison result, and the sound designated by the sounding signal is output. Is generated. Specifically, for example, various characteristics such as the volume of the sound generated by the sounding means, the pitch and the timbre are compared, and according to the comparison result, the sounding means generating the sound with the smallest volume or pitch is stopped, The sound is switched to the sound specified by the sound signal. Further, the sounding means generating the sound having the same tone as the sound specified by the sounding signal is stopped, and the sound is switched to the sound specified by the sounding signal.

According to the present invention, each sound generating means is weighted according to the priority of the channel, a first point is given, and weighting is performed according to the characteristics of the sound being generated. A second point is awarded. The total value of the first and second points is determined in each sounding means, and one of the plurality of sounding means is stopped according to the total value, and is switched to a new sound specified by the sounding signal.

Thus, a sound signal, for example, MIDI
When the data instructs the generation of a plurality of sounds exceeding the maximum number of simultaneous sounds determined by the number of sounding means, the characteristics of the sound generated by each sounding means and the sound specified by the sounding signal are changed. The priority of the sound to be generated is determined according to the comparison result, the generation of the lowest priority sound is stopped, and the higher priority sound is generated. It can respond to an instruction signal, and can generate a sound that does not give a sense of incongruity without being limited by the maximum number of simultaneous sounds.

[0019]

FIG. 1 is a block diagram showing a configuration of a sound source device according to the present invention. As shown in FIG.
The sound source device of the present invention has an interface (I / F) 10
0, MPU 200 as sound control means and sound source section 3
00. The MPU 200 is provided with N (N is a positive integer) arrays 210 for storing sounding signals, for example, MIDI data, and the sound source section 300 is provided with N sounding means 300. The arrangement 210 of the MPU 200 and the sound generation unit 310 of the sound source unit 300 constitute a sound generation system 400. Note that the maximum number of simultaneous sounds of the sound source device is determined by the number of sounding means in the sounding system, and the maximum number of simultaneous sounds is N in the example shown in FIG.

In the illustrated sound source device, MIDI data input from the outside is input to the MPU 200 via the interface 100 and stored in the array 210. As shown in FIG. 1B, the MPU 200 performs data processing such as comparison, leading justification, and sorting of the N pieces of stored data according to the MIDI data, and the sound source unit 30 based on the processing result.
The sounding operation of the 0 sounding means 310 is controlled. For example, note-on or note-off of the sound generator 310 is controlled according to the MIDI data stored in the array. When a new pronunciation request is received in a state where data is contained in all the arrays storing the pronunciation data, that is, when it is instructed to simultaneously produce sounds exceeding the maximum number of simultaneous pronunciations N,
The new sound indicated by the MIDI data is compared with various characteristics of the sound currently being uttered by each sounding means, the priority of sound generation is determined according to the comparison result, and the sounding of the sound with the lowest priority is stopped. Switch to a new pronunciation.

FIG. 2 is a flowchart showing a general utterance operation in the sound source device. When the sound source device operates,
First, an array for the maximum number of simultaneous pronunciations is prepared, as shown in
Then, as shown in step SS2, upon receiving MIDI data input from the outside, an operation according to the MIDI data is performed. As shown in step SS3, it is determined whether or not the received MIDI data is a command for instructing note-off (Note-Off). An off operation is performed. After the note-off operation, step SS2
And the new MIDI data is input again.

If it is determined in step SS3 that the command is not a command to instruct note-off, it is further determined whether or not the command is to instruct note-on (Note-On) as shown in step SS5. If so, a note-on operation is performed as shown in step SS6. Then, after the note-on operation, the operation returns to the operation of step SS2. On the other hand, when it is determined in step SS5 that the command is not a command to instruct note-on, step SS7
The MIDI data is appropriately processed.

FIG. 3 is a flowchart showing the note-off process shown in step SS4 of FIG. 2 in more detail. As shown in FIG. 3, in the note-off process, first, as shown in step S1, a process of searching for a note-off sound from the array is executed. Next, the determination processing shown in step S2 is performed, and it is determined whether or not a note-off sound is found. If found, the processing shown in steps S3 to S5 is performed, and the note-off sound is removed from the array. The resulting free space is shifted to the left, and the sound is note-off. On the other hand, if no note-off sound is found in the determination processing in step S2, the note-off processing ends.

FIG. 4 shows the operation timing when sound is generated by the tone generator in accordance with the MIDI data. As shown in the figure, when note-on is instructed by MIDI data, the instructed sound is note-on, and sound generation starts. When the note-off operation is instructed by the MIDI data, the instructed sound is note-off, and the generation of the sound is stopped. When a plurality of sounds are instructed simultaneously by the MIDI data, a plurality of sounds are simultaneously generated by the sound generating means 310 in the sound source device 300. For example, in the example shown in FIG. 4, five sounds are generated simultaneously.

FIG. 5 shows how the array 210 is used in the MPU 200 in order to realize the tone generation operation shown in FIG. Here, for example, there are five arrangements in the MPU 200, and there are also five sounding means in the sound source unit 300, so that the maximum number of simultaneous sounds of the sound source device is 5
Becomes When a sound is requested by the MIDI data, the MPU 200 first checks whether or not there is an empty space in the array. If there is an empty space, the MIDI data is stored there, and the sound source unit 300 is sounded according to the stored data. An instruction is issued, and a sound is generated by the sound source unit 300 in response to the instruction. On the other hand, in a state where the sound source device has already generated a sound having the maximum number of simultaneous sounds, that is, in a state where there is no space in the arrangement of the MPU 200, the sound requested by the MIDI data and the sound currently being sounded are compared, and the comparison result is obtained. , The priority of sound generation is determined, and sound generation is stopped and switched accordingly.

That is, when a new sound generation request is issued to the sound source device that is generating the sound with the maximum number of simultaneous sounds, the sound generation priority is determined based on the sound characteristics, and the sound with the lowest priority is note-off, The new pronunciation is note-on. The present invention is devised mainly on the determination of the priority of sound generation in the sound source device and the switching operation of the sound generation based thereon, and when simultaneous sounding exceeding the maximum number of simultaneous sounds of the sound source device is requested by the present invention, The greatest feature is that it can generate a sound that does not give a sense of incongruity. Hereinafter, FIGS. 6 to 1
5, some embodiments of the sound source device of the present invention will be described in detail to clarify the features of the present invention. The following embodiments all correspond to the note-on processing in step SS6 of the flowchart shown in FIG.

[0027] First Embodiment FIG. 6 is a diagram showing a first embodiment of the present invention, MPU 2
FIG. 9 is a diagram showing a situation of an array 210 of 00. Where array 2
Reference numeral 10 denotes data storage means for storing pronunciation data for controlling sound characteristics, such as a register and a memory device. For the sake of explanation, in this example, the number of arrangements is 5, that is, the maximum number of simultaneous sounds is 5. The maximum number of simultaneous sounds of the actual sound source device is not limited to this.

This embodiment makes use of the property that the human ear is insensitive to changes in small sounds mixed with loud sounds. Is stopped and the empty area is used for generating a new sound. FIG. 6 shows the sound volume data of the sound data stored in each array. Here, it is assumed that the volume of the sound is proportional to the value of the volume data. As shown in FIG. 6, when a new sound generation request is received in a state where data is stored in all arrays for storing sound generation data, that is, when a sound generation exceeding the maximum number of simultaneous sounds of the tone generator is requested, the MPU 200 , The values of the volume data stored in the respective arrays are compared, and the sound with the smallest value of the volume data is note-off. This sound data is removed from the array by the MPU 200, the empty area is left-justified, and new sound data is stored in the empty array. A new sound is note-on to the tone generator 300 according to the sound data.

FIG. 7 is a flowchart showing the operation of the first embodiment. Hereinafter, the note-on operation in this embodiment will be described with reference to FIG. First, the determination processing shown in step S1 is performed, and it is checked whether or not there is an empty area in the array. If there is an empty area, the processing shown in step S6 is performed, and the sound data is written in the empty array. , And note-on of a new sound is executed as shown in step S7.

On the other hand, when it is determined in step S1 that there is no empty array, the processing in steps S2 to S5
That is, dynamic voice allocation (DVA)
Processing is performed. First, the loudest sound is extracted from the array, and the sound is note-off. Then, the sound data of the sound is removed from the array, the empty area is left-justified, and an empty array area for storing new sound data is prepared. Then, as shown in steps S6 and S7, note-on data of the new sound is written in the empty array, and the new sound is note-on in response thereto.

In the above description, the sound generating means 31
The volume data for controlling the volume of 0 is stored in the array 2 of the MPU 200.
Although it is managed by 10, the actual sound source device is not limited to this. For example, the sound to be removed may be determined based on a value corresponding to the volume generated by the sound source unit 300.

As described above, according to this embodiment,
When a new pronunciation is requested by MIDI data, M
The PU 200 determines whether or not there is an empty area in the array 210. If there is an empty area, the sound data of a new sound is stored therein, and a new sound is generated accordingly. If there is no free space in the array 210, search for the lowest volume in the array, note off the sound, remove the sound data of the sound from the array 210, trim the free space, and add new data. Prepare a free area to store. Then, the sound data of the new sound is stored in the empty area, and the new sound is note-oned accordingly. Therefore, when a sound exceeding the maximum polyphony of the sound source device is requested, the sound with the lowest volume is stopped. , Switched to a new pronunciation,
The unnaturalness of the sound can be eliminated in the sense of hearing.

Second Embodiment FIG. 8 is a diagram showing a second embodiment of the present invention.
FIG. 9 is a diagram showing a situation of an array 210 of 00. The first mentioned above
As in the embodiment, the sound generation data for controlling the sound characteristics is stored in the array 210 provided in the MPU 200.

The present embodiment makes use of the property that the human ear is insensitive to changes in low sounds, and when a sound that exceeds the maximum number of simultaneous sounds of the sound source device is requested, the sound with the lowest pitch is generated. Stop and use the free space for new sounds. FIG. 8 shows the pitch data of the tone generation data stored in each array. Here, it is assumed that the pitch of the sound is proportional to the value of the pitch data. As shown in FIG. 8, when a new sound generation request is received in a state where data is stored in all the arrays for storing sound generation data, that is, when a sound generation exceeding the maximum number of simultaneous sounds of the tone generator is requested, the MPU
, The values of the pitch data stored in the respective arrays are compared, and the note having the smallest value of the pitch data is note-off. This sound data is removed from the array by the MPU, the empty area is left-justified, and new sound data is stored in the empty array. A new sound is note-on according to the sound data.

FIG. 9 is a flowchart showing the operation of the second embodiment. Hereinafter, the note-on operation in this embodiment will be described with reference to FIG. First, the determination processing shown in step S1 is performed, and it is checked whether or not there is an empty area in the array. If there is an empty area, the processing shown in step S6 is performed, and the sound data is written in the empty array. , And note-on of a new sound is executed as shown in step S7.

On the other hand, when it is determined in step S1 that there is no empty array, steps S2 to S5 are performed. First, the lowest pitched note is extracted from the array, and the note is turned off. Then, the pronunciation data of the sound is removed from the array, the empty area is shifted to the left,
An empty array area for storing new sound data is prepared.

Then, as shown in steps S6 and S7, note-on data of a new sound is written in an empty array, and a new sound is turned on in response thereto.

As described above, according to this embodiment,
When a new pronunciation is requested by MIDI data, M
The PU 200 determines whether or not there is an empty area in the array 210. If there is an empty area, the sound data of a new sound is stored therein, and a new sound is generated accordingly. If there is no free space in the array, search for the lowest pitch in the array, note off that sound, remove the sound data for that sound from the array, trim the free space, and store the new data Prepare free space. Then, the sound data of the new sound is stored in the empty area, and the new sound is note-oned accordingly. Therefore, when a sound exceeding the maximum polyphony of the sound source device is requested, the sound with the lowest pitch is stopped. The sound is switched to a new sound, and the unnaturalness of the sound can be eliminated.

Third Embodiment FIG. 10 is a view showing a third embodiment of the present invention. FIG.
As shown in the figure, the array 21 provided in the MPU 200
0 stores sound generation data for controlling sound characteristics. In the present embodiment, a note-off sound is determined using a timbre among various characteristics of the sound. If there is the same tone or similar tone, remove it, or if there are multiple same tone or similar tone, remove one of them. When a pronunciation exceeding the maximum polyphony is requested, a note having the same or similar tone as the requested tone is note-off, or one of a plurality of the same tones is note-off, The sound data of the note-off sound is removed from the array, the empty area is left-justified, and the sound data of the new sound is stored in the resulting empty array area.

FIG. 10 shows the timbre of the tone generation data stored in each array. As shown in FIG. 10 (a), when the requested tone is a piano, the MPU searches for a sound having the same piano tone among the currently sounding sounds, and finds it. In this case, the sound is note-offed, the sounding data of the note-off sound is removed from the array, the empty area is left-justified, the new sounding data is stored in the resulting empty array, and the note-on is performed. I do.

As shown in FIG. 10 (b), when the requested tone is the piano, the MPU searches for a tone having the same tone from the currently sounding tone. Three sounds with tones are generated. In this case, note off one of the three guitar sounds,
The sound data of the sound which has been turned off is removed from the array, the empty area is left-justified, new sound data is stored in the resulting empty array, and the note-on is performed.

FIG. 11 and FIG.
It is a flowchart which shows the switching operation of (a) and FIG.10 (b). Hereinafter, the operation of the present embodiment will be described with reference to these flowcharts. As shown in FIG. 11, when a new sound generation request is received, first, the determination operation shown in step S1 is performed, and it is checked whether or not there is a free area in the array.
Is performed, new sound data is written in the empty array, and note-on of a new sound is executed as shown in step S7.

On the other hand, when it is determined in the determination processing in step S1 that there is no empty array, the processing in steps S2 to S5 is performed. First, a sound having the same timbre as the requested pronunciation is extracted from the array, and the sound is note-off. Then, the sound data of the sound is removed from the array, the empty area is left-justified, and an empty array area for storing new sound data is prepared.

Then, as shown in steps S6 and S7, note-on data of a new sound is written in the empty array, and the new sound is turned on in response to this.

In this process, when the tone being sounded does not have the same tone color as the requested tone, the note-off sound cannot be determined, and an empty area cannot be prepared. In this case, processing can be performed by another processing method shown in FIG. When a sound that exceeds the maximum number of simultaneous sounds of the sound source device is requested, a plurality of sounds having the same timbre are determined among the sounds currently being generated, as shown in step S2 of FIG. 12, and one of them is determined. Note-off. Then, the sound data of the sound is removed from the array, the empty area is left-justified, and an empty array area for storing new sound data is prepared.

As described above, according to this embodiment,
When a new pronunciation is requested by MIDI data, M
The PU 200 determines whether or not there is an empty area in the array 210. If there is an empty area, the sound data of a new sound is stored therein, and a new sound is generated accordingly. If there is no free space in the array, a sound having the same timbre as the requested sound is searched for among the currently sounding sounds, and the sound is note-offed. Alternatively, a plurality of sounds having the same timbre are searched for among the currently sounding sounds, and one of them is note-off. The sound data of the sound is removed from the array, the free space is shifted to the left, and a free space for storing new data is prepared. Then, the sound data of the new sound is stored in the empty area, and the new sound is note-oned accordingly, so that when a sound exceeding the maximum polyphony of the sound source device is requested, a similar sound or a plurality of the same sounds are generated. One of the timbre sounds is stopped, switched to a new sound, and the unnaturalness of the sound can be eliminated in terms of audibility.

Fourth Embodiment In this embodiment, a method for removing the earliest generated sound,
By combining any one of the above-described first to third embodiments of the present invention with the two schemes for removing channels with lower priorities, the effects of each scheme are maximized. Here, a first embodiment of the present invention, that is, a system in which a volume is combined with a system for removing a sound with the lowest volume will be described as an example.

FIGS. 13 and 14 show a fourth embodiment of the present invention. Hereinafter, the present embodiment will be described with reference to these drawings. The index is the number of the sounding system, and CH is the number of the channel being sounded. FIG.
(A) shows that all the sounding systems are in a sounding state. At this time, processing when a new sounding request is received by MIDI data is shown below.

As shown in FIG. 13B, the tone generation systems are rearranged according to the priority order of the channels. After rearranging, each sound system is weighted from 0 to 4. Then, as shown in FIG. 13C, the sound generation systems are rearranged according to the magnitude of the volume. After rearranging, each sound system is weighted from 0 to 4.

FIG. 14A shows FIG. 1 for each sound generation system.
14 shows the result of totalizing the weight points shown in FIG. 3 (b) and FIG. 13 (c). The current pronunciation of the pronunciation system with the least total points, in this example the index 2 pronunciation system, is note-off. The resulting free space is used for a new tone specified by the MIDI data.

Further, in the present embodiment, the weighting is changed for each system or for each sounding system in each system.
The influence of each method can be easily changed. For example,
As shown in FIG. 14B, the sound systems are rearranged according to the sound volume of the sound. After the rearrangement, weights of 0, 2, 4, 6, and 8 are assigned to the respective sound systems.
That is, the number of points weighted according to the sound volume is doubled as compared with FIG. Then, the points are totaled for each sounding system, and the result shown in FIG. 14C is obtained. here,
Of the index 0, 2 and 4 channels with the lowest total score, the note with the index 0, which is the earliest sound, is note-off and switched to a new sound.

FIG. 15 is a flowchart of the note-on operation in this embodiment. As shown in FIG. 15, when a new sound generation request is received, first, the determination operation shown in step S1 is performed, and it is checked whether or not there is an empty area in the array. The process is performed, new sound data is written in the empty array, and note-on of a new sound is executed as shown in step S13.

On the other hand, when it is determined in step S1 that there is no empty array, steps S2 to S11 are performed. First, two work arrays 1 and 2 are prepared as shown in step S2. Then, steps S3 and S
As shown in FIG. 4, the array 1 stores the index and the channel as a pair, and the array 2 stores the index and the volume as a pair.

Next, as shown in steps S5 and S6, array 1 is rearranged (sorted) by channel priority, and array 2 is rearranged by volume. After sorting, each index is weighted. Then, as shown in step S8, the total result of the weighted points is obtained for each index, and the minimum value of the total is determined.

As shown in step S9, the sound with the smallest index of the total point value is note-off, the sound data is removed from the array, and the array is left-justified to store empty sound data for a new sound. An area is prepared. Then, as shown in steps S12 and S13, the sound data of the new sound is stored in the empty area, and the new sound is turned on.

In the above description, the weighting based on the volume of the sound being produced has been described as an example. However, the present embodiment is not limited to this, and other characteristics of the sound, such as pitch and timbre, are used. Can be weighted on the basis of. In an actual sound source device, the optimal balance of each method can be adjusted by determining the weighting reference and the weighting point according to the purpose of adjustment, etc., which is a very effective means for adjusting the entire sound source device system. Becomes

As described above, according to this embodiment,
When a sound generation exceeding the maximum number of simultaneous sounds of the sound source device is requested, each sound generation system is rearranged according to the priority of the channel and the sound volume of the sound, and weighted sequentially to give different points. Then, the number of weighted points is totaled for each pronunciation system, and the sound of the pronunciation system with the lowest total score is note-offed and switched to a new sound. Switching to sound, the tone generator can be adjusted according to the weighting reference and weighting score, and the optimal balance of each method can be adjusted according to the purpose of the adjustment.

[0058]

As described above, according to the tone generator of the present invention, a sound signal having a large number of simultaneous sounds, for example, MID
There is an advantage that it is possible to cope with I data and to eliminate discomfort in hearing without being restricted by the maximum number of simultaneous sounds. Also,
According to the present invention, MIDI data that does not take into account the priority of the number of channels,
There is an advantage that it is possible to effectively deal with DI data and to create MIDI data without worrying about restrictions imposed by the maximum number of simultaneous sounds of the tone generator when creating MIDI data.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a sound source device according to the present invention.

FIG. 2 is a flowchart illustrating a utterance operation of the sound source device.

FIG. 3 is a flowchart illustrating a note-off process.

FIG. 4 is a conceptual diagram showing a simultaneous sound generation state of a sound source device.

FIG. 5 is a diagram showing a use situation of an array of sound source devices.

FIG. 6 is an array diagram showing a first embodiment of a sound source device according to the present invention.

FIG. 7 is a flowchart illustrating a note-on operation of the first embodiment.

FIG. 8 is an arrangement diagram showing a second embodiment of the sound source device according to the present invention.

FIG. 9 is a flowchart illustrating a note-on operation of the second embodiment.

FIG. 10 is an array diagram showing a third embodiment of the sound source device according to the present invention.

FIG. 11 is a flowchart illustrating a note-on operation of the third embodiment.

FIG. 12 is a flowchart illustrating a note-on operation of the third embodiment.

FIG. 13 is a conceptual diagram showing a fourth embodiment of the sound source device according to the present invention.

FIG. 14 is a conceptual diagram showing a fourth embodiment of the sound source device according to the present invention.

FIG. 15 is a flowchart illustrating a note-on operation of the fourth embodiment.

FIG. 16 is a diagram illustrating an example of a configuration of an utterance system having a sound source device.

FIG. 17 is a flowchart of an utterance data processing application program.

FIG. 18 is a diagram showing a part of a MIDI data event message.

[Explanation of symbols]

10 utterance data generator, 20 data transfer cable,
30 ... sound source device, 31 ... interface, 32 ... MP
U, 33: sound source device, 34: DAC, 40: audio cable, 50: audio amplifier, 60: speaker,
100 interface, 200 MPU, 210
Array for storing pronunciation data, 300 ... sound source section, 310 ...
Sounding means, 400 ... sounding system.

Claims (9)

[Claims] 1. A sound source device having a plurality of sounding means, each sounding means being controlled to generate a sound having a characteristic based on an instruction of a sounding signal. When receiving an instruction to generate a plurality of sounds exceeding the number of sounds, the characteristics of the sound being generated by each of the sounding means and the sound specified by the sounding signal are compared, and a predetermined one of the sounding means is determined according to the comparison result. A sound source device having sound generation control means for stopping the sound generation means for generating the sound of (i) and generating the sound specified by the sound generation signal. 2. The sounding control means stops sounding means for generating a low volume sound among the plurality of sounding means,
2. The sound source device according to claim 1, wherein a sound specified by the sound signal is generated. 3. The sound source device according to claim 1, wherein said sound generation control means stops a sound generation means for generating a sound with a low pitch out of said plurality of sound generation means, and generates a sound specified by said sound generation signal. . 4. The sounding control means stops sound of a sounding means which generates the same timbre as a sound specified by the sounding signal among the plurality of sounding means, and plays a sound specified by the sounding signal. The sound source device according to claim 1, which generates the sound. 5. The sounding control means detects sounds having the same timbre generated by the plurality of sounding means, stops any of the sounds, and generates a sound specified by the sounding signal. The sound source device according to claim 1. 6. The sounding control means weights each sounding means in accordance with the priority of the channel, assigns a first point to each sounding means, and assigns a first point to each sounding means. A second weighting means for weighting each sounding means to give a second point to each sounding means, a summing means for respectively calculating a sum of the first and second points of each sounding means, 2. The sound source device according to claim 1, further comprising switching means for stopping one sounding in accordance with the total number of points of each sounding means and generating a sound specified by the sounding signal. 7. The sound source device according to claim 6, wherein said second weighting means performs weighting according to a volume of a sound generated by each sounding means. 8. The sound source device according to claim 6, wherein said second weighting means weights according to a pitch of a sound generated by each sounding means. 9. The sound source device according to claim 1, wherein said sound generation signal is MIDI (music device digital interface) data.