JP3666100B2 - Music output device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a musical tone output apparatus capable of obtaining a good tone color when performing automatically using a plurality of different tone colors or performing different tone colors.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, when an automatic performance is performed automatically in an automatic performance device, it is generally performed to perform an automatic performance using a plurality of different timbres.
Also, in the case of live performance using an electronic musical instrument, different timbres such as an electronic drum, an electric guitar, and a keyboard are performed in a superimposed manner.
[0003]
[Problems to be solved by the invention]
However, when using different tones, the tone of each tone sounds good when listened to alone, but when mixed with other tones or ensembles, the tone becomes inconspicuous or overall There is a problem that the tone color of the musical tone may deteriorate.
SUMMARY OF THE INVENTION An object of the present invention is to provide a musical tone output device that produces a good tone when used at the same time as other tones and outputs a tone with a good tone when listened to alone.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, the musical tone output device of the present invention has a tone generator unit to which performance data including instruction information for instructing solo performance or ensemble performance is supplied, and a musical tone corresponding to the supplied performance data. a plurality of sequences for generating the parameters of the tone generator section for each of the plurality of series, and when the solo performance is instructed by the instruction information, the control means for switching between when the ensemble performance is instructed by the instruction information The solo performance and the ensemble performance can be switched for each of the plurality of series .
Further, in the tone output device, in the parameter, the filter coefficient is set to at least tone filter is a free Murrell so.
[0005]
The musical tone output apparatus of the present invention further includes a solo-dedicated area for storing solo-dedicated parameters, an ensemble-dedicated area for storing ensemble-dedicated parameters, and a common area for storing solo and ensemble common parameters. the memory, further comprising, when the solo performance has been instructed by the instruction information, the parameters from the common area and the solo-only area of the memory is read out is set to the sound source part, ensemble performance is instructed by the instruction information and when, from said ensemble dedicated area of the memory and the common area parameter is read out so that the so that set in the tone generator section.
[0006]
Furthermore, in the above tone output device of the present invention , when the control means is supplied with automatic performance data including instruction information for instructing solo performance or ensemble performance, data for instructing solo performance in accordance with the progress of the song the parameters for the solo in part, the data part indicating the ensemble are the parameters for the ensemble to be set automatically switched to the tone generator section.
[0007]
According to the present invention as described above, when a solo performance is instructed, it is possible to output a good musical sound by switching to a parameter suitable for the solo performance. When an ensemble performance is instructed, the parameters are switched to parameters suitable for the ensemble performance, and a good ensemble tone can be output.
Therefore, in an automatic performance using a plurality of different timbres, a good timbre automatic performance can be performed. In addition, a good musical tone can be output even in a live performance using different timbres.
[0008]
Further, since the ensemble parameter is a parameter obtained by changing a part of the solo parameter, the memory may have a parameter storage area that can be used in common and a storage area for each dedicated parameter. For this reason, compared with the case where each parameter is memorize | stored independently, memory capacity can be reduced and memory can be utilized effectively.
Furthermore, when automatic performance data including solo data and ensemble data is supplied, the parameters can be switched according to the solo performance portion and the ensemble performance data portion. Can also perform well.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
The configuration of the first embodiment of the musical tone output device of the present invention is shown in FIG. 1, and in this example, the musical tone output device of the present invention is applied to automatic performance.
In FIG. 1, 1-1 is a first-sequence sound source unit that generates a first tone color tone, 1-2 is a second-sequence tone generator unit that generates a second tone color tone, and 1-n is It is an n-th series sound source unit that generates a musical tone of the n-th tone color. That is, the tone generators 1-1 to 1-n can generate n kinds of musical tones. Reference numeral 2 denotes an automatic performance apparatus that automatically supplies automatic performance data to a plurality of sound source units 1-1 to 1-n for automatic performance. Reference numeral 3 denotes a sound system for emitting musical sounds output from the sound source units 1-1 to 1-n.
[0010]
The sound source units 1-1 to 1-n all have the same configuration, and the configuration is shown in the first-sequence sound source unit 1-1. Therefore, the configuration of the sound source unit will be described using the first-line sound source unit 1-1 as an example. The first-line tone generator unit 1-1 supplies a waveform memory tone generator 10, a filter 11 to which musical sounds generated from the waveform memory tone generator 10 according to automatic performance data are supplied, and a solo filter coefficient to the filter 11. Solo filter coefficient means 14; ensemble filter coefficient means 15 for supplying ensemble filter coefficients to the filter 11; selector switch 12 for selecting one of the solo filter coefficient means 14 and the ensemble filter coefficient means 15; The control unit 13 controls the changeover switch 12 in accordance with automatic performance data.
[0011]
The operation of the sound source units 1-1 to 1-n configured as described above will be described by taking the sound source unit 1-1 of the first series as an example.
The automatic performance device 2 supplies performance data as shown in FIG. 2 to the sound source units 1-1 to 1-n. However, FIG. 2 shows a track of one tone color. Actually, performance data from the automatic performance device 1 has a plurality of tracks.
In the track shown in FIG. 2, “PC” is a program change message for changing the tone, “Solo” is a message for instructing solo performance, “D” is a message for indicating duration, and “Ensemble” is for instructing ensemble performance. Message.
[0012]
That is, it is changed to a timbre to be played solo by a program change message, and then a solo performance is designated, or a timbre to be played by an ensemble is changed by program change, and then an ensemble performance is designated.
At this time, when a program change message is supplied from the automatic performance device 1 to the first-line sound generator unit 1-1, a tone tone corresponding to the program change message is generated from the waveform memory sound generator 10 in the sound generator unit 1-1. Are supplied to the filter 11. Next, assuming that solo performance is instructed, the control unit 13 switches the changeover switch 12 to the solo filter coefficient means 14 side in accordance with this instruction.
As a result, the filter coefficient from the solo filter coefficient means 14 is set in the filter 11, and it is possible to obtain a musical tone of good solo performance.
When a message for instructing ensemble performance is supplied to the first-sequence sound generator 1-1 after the program change message, the controller 13 switches the changeover switch 12 to the ensemble filter coefficient means 15 side. As a result, the filter coefficient from the ensemble filter coefficient means 15 is set in the filter 11, and a musical tone of an ensemble performance with a good tone color can be obtained.
Note that the ensemble filter coefficient is, for example, a filter coefficient that lowers the level of frequency components that overlap and have concentrated levels when they overlap with timbres from the sound source units 1-2 to 1-n of other series. Then, a good tone can be obtained when the ensemble is played.
Further, the filter coefficient for solo is a filter coefficient that makes a good timbre when listening alone.
[0014]
Thus, in the first embodiment of the tone output device of the present invention, when a solo performance is instructed, the filter coefficient suitable for the solo performance is set in the filter, and when the ensemble performance is instructed, the ensemble performance is performed. The filter coefficient suitable for is set in the filter. As a result, it is possible to obtain a musical tone having a good tone regardless of whether it is a solo performance or an ensemble performance.
[0015]
Next, a second embodiment of the musical sound output device of the present invention will be described with reference to FIGS. FIG. 3 is a block diagram showing the configuration of the second embodiment in which the musical tone output device is applied to automatic performance, and FIG. 4 shows the configuration of the frequency analysis unit in the second embodiment. FIG. 5 shows a memory configuration of a random access memory (RAM) in the second embodiment.
In FIG. 3, 30-1 is a first-sequence sound source unit that generates a first tone color tone, 30-2 is a second-sequence tone generator unit that generates a second tone color tone, and 30-n is It is an n-th series sound source unit that generates a musical tone of the n-th tone color. That is, the tone generators 30-1 to 30-n can generate n kinds of musical tones.
[0016]
In addition, 31 receives the automatic performance data output from the automatic performance device 32, and supplies performance data for each performance track to the first-line sound source unit 30-1 to the n-th sound source unit 30-n. A control device 32 for controlling the level and frequency of a specific harmonic, and the control device 31 is supplied with automatic performance data composed of a plurality of performance tracks as shown in FIG. It is an automatic performance device.
Further, 33 is a random access memory (RAM) for storing timbre parameters at the time of ensemble performance set by the control unit 31 controlling the sound source units 30-1 to 30-n, and 34 is a sound source unit 30-. A mixer for mixing the musical sounds output from 1 to 30-n, 35 is a frequency analyzing unit for performing frequency analysis of the musical sounds output from the mixer 34, and supplying the result to the control unit 31, and 36 is from the mixer 34. This is a sound system for emitting output musical sounds.
[0017]
The operation of the musical tone output apparatus according to the second embodiment of the present invention configured as described above will be described. The automatic performance data output from the automatic performance apparatus 32 is transmitted through the control section 31 to the first sound source section 30. Is supplied to the sound source units 30-n of the -1 to n-th series, and musical sounds are generated from the sound source units 30-1 to 30-n of each series, and the respective musical sounds are supplied to the mixer 34 and mixed.
The mixed musical sound is supplied to the frequency analysis unit 35, and the level of each spectrum is detected. The detected level information for each spectrum is supplied to the control unit 31. The control unit 31 performs the following process on the assumption that the cause of the deterioration of the musical tone during ensemble performance is that the level is concentrated in a certain frequency band.
[0018]
First, when the control unit 31 detects a high frequency band, the control unit 31 compares the frequency band with the currently generated key code, and calculates how many harmonics correspond to the frequency corresponding to the key code. Then, in order to lower the level of the frequency band, an instruction such as lowering the calculated harmonic level or shifting the frequency of the harmonic is given to the first-series sound source unit 30-1 to the n-th sequence sound source unit 30. Instruct each series of -n. This instruction is sequentially given to each of the first sound source unit 30-1 to the n-th sound source unit 30-n.
That is, any one of the first-sequence sound source unit 30-1 to the n-th sequence sound source unit 30-n that receives this instruction lowers the level of the instructed overtone or shifts the frequency of the overtone. . Next, after performing such processing, the frequency analysis of the musical sound output from the mixer 34 at this time is performed again in the frequency analysis unit 35.
[0019]
The control unit 31 receives the frequency analysis result at this time, detects whether or not the level of the high frequency band has been improved, and if not improved, gives the same instruction to the next sequence. Thus, when the high frequency band is improved, the control unit 31 stops the control.
Then, the timbre parameters obtained by this control are registered by being stored in the RAM 33 as timbre parameters at the time of ensemble performance. As a result, when an ensemble performance is instructed next time, an ensemble performance with a satisfactory timbre can be reproduced by reading the ensemble timbre parameters from the RAM 33. Further, when the level of a specific frequency is high, it is possible to reproduce a musical tone having a good tone color by reading out the corresponding tone color parameter from the RAM 33.
[0020]
The processing of the control unit 31 described above is performed when an ensemble performance is instructed from the automatic performance device 32, and is not performed when a solo performance is instructed.
An example of the configuration of the frequency analysis unit 35 is shown in FIG. 4. In this example, the frequency analysis unit 35 is configured by a filter bank as described below.
4, a low-pass filter (LPF) 40-1, a band-pass filter (BPF) 40-2, 40-3,..., A high-pass filter (HPF) 40-k perform frequency analysis of an input signal. Are connected in parallel, and the level of the frequency component that has passed through each of the filters 40-1 to 40-k is detected by level detectors 41-1 to 41-k that are subsequently connected to the respective filters.
[0021]
Thereby, the level of each frequency component (spectrum) is detected, and the detected level information is supplied to the control unit 31.
The frequency analysis unit 35 can be configured by a filter bank as described above, but can also be performed by FFT (Fast Fourier Transform). However, since the FFT speed is low at present, frequency analysis using a filter bank is more realistic.
[0022]
The memory structure of the RAM 33 is shown in FIG. 5, and a memory area is allocated for each timbre. The memory area for each timbre includes a solo timbre parameter storage area for storing solo timbre parameters, and an ensemble dedicated timbre. It consists of an ensemble tone color parameter area in which parameters are stored. In this case, the solo timbre parameter storage area is composed of a common part composed of timbre parameters commonly used for solo and ensemble, and a solo dedicated part composed of solo-specific timbre parameters.
[0023]
This is because the ensemble timbre parameters processed by the control unit 31 as described above are obtained by changing a part of the solo timbre parameters, and there are parameters that can be used in common for both timbre parameters. . If the parameter area of the common part is formed, the storage capacity of the RAM 33 can be reduced as compared with the case where the ensemble tone parameter and the solo tone parameter are stored independently.
In the RAM 33, a memory area for storing parameters of the first tone color to mth tone color composed of the solo tone color parameter and the ensemble tone color parameter composed of the common portion and the solo dedicated portion shown in FIG. Is formed.
[0024]
In the RAM 33, when the solo performance is instructed, the timbre parameters are read from the common portion of the solo timbre parameter area of the RAM 33 and the dedicated portion for solo, and the tone color suitable for solo is generated. .
When an ensemble performance is instructed, a tone color parameter suitable for the ensemble is read from the common part of the solo tone parameter area of the RAM 33 and the ensemble tone parameter area, and a good ensemble performance tone is generated. Will come to be.
[0025]
When the control unit 31 controls the timbre parameter, the timbre output from one of the first series of sound source units 30-1 to 30-n and the other one. You may make it control a timbre parameter, seeing compatibility with the different timbre output.
Furthermore, priority may be given to the timbres output from the first-sequence sound source unit 30-1 to the n-th sequence sound source unit 30-n, and the timbre parameters may be controlled in descending order of priority.
Furthermore, with respect to characteristic frequency components in each timbre, the degree of reduction may be determined in consideration of eliminating characteristic frequency components when they are reduced.
Furthermore, the musical tone output device shown in FIG. 3 can also be applied as a tone creation device for each tone color that performs an ensemble performance.
[0026]
【The invention's effect】
Since the present invention is configured as described above, when a solo performance is instructed, it is possible to switch to parameters suitable for the solo performance and output a good musical sound. When an ensemble performance is instructed, the parameters are switched to parameters suitable for the ensemble performance, and a good ensemble tone can be output.
Therefore, in an automatic performance using a plurality of different timbres, a good timbre automatic performance can be performed. In addition, a good musical tone can be output even in a live performance using different timbres.
[0027]
Further, since the ensemble parameter is a parameter obtained by changing a part of the solo parameter, the memory may have a parameter storage area that can be used in common and a storage area for each dedicated parameter. For this reason, compared with the case where each parameter is memorize | stored independently, memory capacity can be reduced and memory can be utilized effectively.
Furthermore, when automatic performance data including solo data and ensemble data is supplied, the parameters can be switched according to the solo performance portion and the ensemble performance data portion. Can also perform well.
[Brief description of the drawings]
FIG. 1 is a block diagram showing the configuration of a first embodiment of a musical sound output device of the present invention.
FIG. 2 is a diagram showing an example of performance data in a one-tone track of automatic performance data output from an automatic performance device.
FIG. 3 is a block diagram showing a configuration of a second embodiment of a musical sound output device of the present invention.
FIG. 4 is a diagram showing a configuration of a frequency analysis unit in the second embodiment of the musical sound output device of the present invention.
FIG. 5 is a diagram showing a configuration of a RAM in a second embodiment of a tone output device of the present invention.
[Explanation of symbols]
1-1 to 1-n 1st to n-th tone generator units, 2 automatic performance devices, 3 sound systems, 10 waveform memory tone generators, 11 filters, 12 selector switches, 13 control units, 14 solo filter coefficient means, 15 Ensemble filter coefficient means, 30-1 to 30-n 1st to n-th tone generator unit, 31 control unit, 32 automatic performance device, 33 RAM, 34 mixer, 35 frequency analysis unit, 36 sound system, 40 -1 to 40-k filter, 41-1 to 41-k level detector

Claims (4)

A plurality of sound sources each having a sound source section to which performance data including instruction information for instructing a solo performance or an ensemble performance is supplied, and generating a musical sound according to the supplied performance data;
Wherein the plurality of parameters of the sound source unit for each sequence includes a when the solo performance is instructed by the instruction information, and control means for switching between when the ensemble performance is instructed by the instruction information,
A musical sound output device characterized in that a solo performance and an ensemble performance can be switched for each of the plurality of sequences .     2. The musical tone output apparatus according to claim 1, wherein the parameter includes at least a filter coefficient set for a timbre filter. A solo-only area of the solo-only parameter is stored, and ensemble-only area of the ensemble dedicated parameters are stored, the memory having a common area where common parameters solo and ensemble are stored, further comprising,
When the solo performance has been instructed by the instruction information, from the common area and the solo-only area of the memory parameter is set to the tone generator section is read out, when the ensemble played at the instruction information has been instructed, the memory ensemble-only area and the common area and the tone output device according to claim 1, wherein the parameter has to so that is set in the tone generator section is read out from. Wherein, when the automatic performance data including indication information indicating solo or ensemble performance is supplied, the parameters for the solo in the data part indicating a solo in accordance with the progress of the song, instructing ensemble 2. The musical tone output device according to claim 1 , wherein the ensemble parameters are automatically switched and set to the sound source section in the data portion to be processed.

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