JP2518056B2 - Music data processor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a musical tone data processing device such as a sequencer for processing and storing musical tone data for operating a tone generator of an electronic musical instrument.

(B) Conventional Technique An electronic musical instrument has a performance device to be operated at the time of performance and a tone generator device to generate a musical sound. The musical performance device has a function of generating musical tone data by coding the content of the player's operation (performance), and the tone generator device has a function of generating musical tone based on this musical tone data. Further, since the sound source device generates a musical tone based on the coded musical tone data, the musical tone can be similarly generated even when the musical tone data is received from a device other than the playing device.

Utilizing this characteristic, automatic performance of electronic musical instruments has been put to practical use. That is, an electronic musical instrument can be automatically played if a musical tone data processing device (sequencer) that sequentially reads musical tone data stored in advance and transmits it to the tone generator device is provided instead of the musical instrument.

As a method of recording musical sound data in a sequencer, a real-time input method in which a musical instrument such as a keyboard is actually played and the musical sound data generated along with the performance is input and recorded, and the pitch and pronunciation of each musical sound are recorded. A step input method has been put into practical use, in which the level and the sounding timing are respectively input and recorded using numerical keys and the like.

(C) Problem to be Solved by the Invention Although the musical tone data recorded in the sequencer for automatic performance is pitch, sounding level, sounding timing, etc., in the real-time input method, actual operation of the playing device (playing) is performed.
Since it is input by, it is easy to express (set) with slight fluctuations according to the performer's will in the pronunciation level and timing, but the disadvantage is that incorrect pitches are input due to mistaken touch etc. Yes, again
There was a drawback that this input method could not be adopted unless the instrument could be played. On the other hand, in the step input method, since data such as pitch, pronunciation level, and pronunciation timing of each musical tone are input as numerical values, there are few errors, but it is difficult to express with slight fluctuations in the pronunciation level and timing. Besides, there is a drawback that the input is extremely time-consuming.

The present invention provides a tone data processing apparatus that solves the above problems by synthesizing good parts of the tone data input by the real-time method and the tone data input by the step method to generate one tone data. The purpose is to

(D) Means for Solving the Problem The present invention is based on the operation of a real-time musical tone data storage means for storing a real-time musical tone data string composed of a plurality of musical tone data input by a performance by operating a musical performance device, and a data input device. Step tone data storage means for storing a step tone data sequence consisting of a plurality of tone data input by an input operation, real-time tone data sequence stored in the real-time tone data storage means and the step tone data storage means Generates a new musical tone data string by combining the corresponding musical tone data of the step musical tone data sequence that is already created, and combining some elements of the musical tone data of the real-time musical tone data sequence and some elements of the musical tone data of the step musical tone data sequence. Music data synthesizing means for And are characterized.

Further, the present invention provides a new musical tone data sequence by combining the musical tone data synthesizer with at least the execution timing data of the musical tone data of the real-time musical tone data sequence and the pitch data of the musical tone data of the step musical tone data sequence. It is characterized in that it is a means for generating.

(E) Action of the Invention In the musical sound data processing apparatus of the present invention, the musical sound data input by the real-time input method (real-time musical sound data string) is compared with the musical sound data input by the step input method (step musical sound data string). . In this comparison, the pitch of the tone data input by the step method is always considered to be correct because there is no mistouch. On the other hand, the tone generation level and tone generation timing of the musical tone data input by the real-time method are considered to include sufficient nuances because they are actually played. Therefore, for example, if new tone data is generated by synthesizing the tone level and tone timing input in the real-time method with the tone data of the step tone input, it will always be possible to compose rich tone data with a correct tone. can do. As a method for generating new musical tone data, a method for determining elements (tone pitch, pronunciation level, pronunciation timing, etc.) of the musical tone data based on both elements of real-time musical tone data and step musical tone data (intermediate value There is also).

Also, if only the volume and sounding timing are input with one key (one pitch) on the keyboard and only the pitch sequence is input with step input, the key operation with one finger is extremely complicated. Music data can be easily created.

In this comparison, by combining step data with few pitch errors and real-time data with rich facial expressions with slight fluctuations in pronunciation level and timing, musical tone data strings with reliable pitches and rich facial expressions (Automatic performance data) can be easily edited and created. Furthermore, since the real-time tone data sequence and the step tone data sequence are respectively stored in the real-time tone data storage means and the step tone data storage means and then synthesized, only one of the tone data can be input even if the input of one tone data fails. You can fix it and synthesize music data,
Also, if the synthesis of the musical sound data is not successful, it can be redone many times. This makes it possible to generate optimum musical sound data.

(F) Embodiment FIG. 1 is a block diagram of a musical sound data processing apparatus which is an embodiment of the present invention. This tone data processing device is a so-called sequencer, which can store tone data input from a keyboard or an input switch, and further sequentially read and output the tone data to an electronic musical instrument (sound source device). In this device, the CPU 10 controls the entire operation. This CPU 10 is connected to other devices via a bus 11. RO on bus 11
M12, RAM13, indicator 14, tempo clock 15, keyboard circuit 16, switch group 17 and MIDI interface 18 are connected. The ROM 12 stores a control program and the like for controlling the operation of this device. A tone data table for storing various register groups and sequence data is set in the RAM 13. The display 14 displays the inputted musical sound data and the like. The tempo clock 15 is a circuit that generates a pulse at a specified tempo, and defines the tempo at the time of real-time input or data read. The keyboard circuit 16 has a keyboard having a tone range of about 5 octaves, an on / off detection circuit for each key, and a sounding level detecting circuit, and detects the pitch and sounding level at which the performer has turned on. Further, a wind instrument or string instrument type performance device may be provided in place of the keyboard, and a combination of a microphone and a peak detection circuit may be provided to extract sounding timing, volume, etc. from the humming of the performer. . The switch group 17 has a step input setting switch and mode setting switches such as a read mode and a read mode. The MIDI interface 18 is connected to the tone generator and outputs the musical tone data read from the musical tone data table.

FIG. 2 is a diagram showing a tone data table set in the RAM. FIG. 1A shows a normal tone data table (real time data table, step data table). In this table, the pitch, the volume, and the sounding timing are stored in order from the musical sound that is read (pronounced) first. In the case of real-time input, the performance content of the keyboard is sequentially stored based on the tempo of the tempo clock 15, and in the case of step input, the data input from the switch group 17 etc. is stored in each storage area.

FIG. 6B shows a comparison table. This comparison table is a table used when two musical tone data strings of different input methods stored for the same song are compared and synthesized to generate a new musical tone data string. For this reason, two tone data tables shown in FIG. 7A are provided in parallel, and the tone data tables stored separately can be compared and the corresponding ones can be stored side by side.

The operation of the tone data processing apparatus will be described with reference to the flow chart of FIG. 3 and the content of the comparison table of FIG. The flowchart of FIG. 3 shows the operation of the device in the comparison mode. First, the real-time data and the step data are compared, and the corresponding ones are arranged and stored in the same column (n1). The comparison and correspondence of the quantity data may be performed by finding and matching the maximum matching of both data strings like the well-known UNIX Diff program. Such a state of the comparison table is shown in FIG.
It shows in (B). In this way, if the pitches are the same and the sound generation timing deviation is within a few ms, they are stored side by side as corresponding. Further, in this embodiment, if the pitches to be sounded are different even if the sounding timings are close, they are separately stored as uncorresponding ones. The contents of this comparison table are displayed on the display 14 (n2), and all data can be viewed by scrolling. It is also possible to edit data such as correction and composition while looking at the displayed contents (n3).

Here, FIGS. 4 (A) to (E) and FIG. 5 (A) to
The editing method will be described with reference to (C). In this figure, the step data is edited with reference to the real-time data to generate a new musical tone data sequence. Here, assuming that the step data is correct in the pitch designation and the sound generation timing is extremely accurate, an example based on the edit will be shown.

First, the sound level is edited as shown in FIG. In the step type input, the tone generation levels are all set to 60 as shown in FIG. 4 (B). This is because it is difficult to add volume information by the step input method. On the other hand, in the real-time input method shown in FIG. 4 (A), the sounding level as a result of actually playing the keyboard is set, and a natural expression is given by the change in the volume level. First, in FIG. 4 (C), this tone generation level data is directly copied to the step data table and used as tone generation level data. For data that cannot be matched, the intermediate value between the data immediately before and the data immediately after is taken and interpolated. In addition to the method of changing the tone data by the real-time method as it is, the method of changing the volume data is a method of using the average value of the real-time data and the step data as new data, or a method of doubling the real-time data and the step data. And add 3
It is also possible to use a method such as dividing by.

Further, the editing of the tone generation timing is also performed by comparing the data corresponding to each other as in the tone generation level as shown in FIG. Here, a new sounding timing is obtained by averaging the sounding timing of the real-time data and the sounding timing of the step data. In addition, regarding the data that cannot be dealt with, the intermediate value between the immediately preceding data and the immediately following data is taken as the sound generation timing.

FIGS. 4 (E) and 5 are examples in which mixdown data is created by adopting the volume and tone generation timing with the original nuances of the real-time data. In FIG. 5 (A), the real-time data inputter (performer) ignores the melody (pitch change) of the song and operates only the C3 pitch key on the keyboard to control only the sounding timing and volume. You are typing. In this case, it is not necessary to move your finger according to the pitch, so you only have to pay attention to the pronunciation timing and volume.
Input is easy.

Further, in FIG. 5B, only the melody (pitch) is input by the step input method. However, the volume = 60 is mechanically input. You may be allowed to enter any value because of course not employed in the mixdown data, or may be a blank data. The same applies to the timing of pronunciation.

The mixdown data 4 in FIG. 5C is the performance data obtained by adopting the volume and tone generation timing from the above real-time data and the pitch from the step input data.

In the case of FIG. 5, it is necessary to pay attention to the data input because the only material for determining which data of the real-time data corresponds to which data of the step input data is the data arrangement order. The input operation is as easy as the conventional one can't think of, and, as shown in Fig. 5 (C), the completed data is conventionally taken by a person who takes a lot of time, or who is very good at playing. There is an advantage that you can get what you could not get.

In addition, since the real-time data of FIG. 5 (A) does not need to input the pitch, it can be created by the player hitting the drum pad according to the melody of the song, and the flow of the song can be hummed or sung. It can be easily created by humming and measuring the peak appearance timing and amplitude of the volume with a microphone.

The new musical tone data thus edited is saved as new data in another new musical tone data table (n4), and the operation is completed. This tone data is read in the performance mode and is sounded as a tone in the tone generator.

(G) Effects of the Invention As described above, according to the musical sound data processing apparatus of the present invention, the musical tone data by the step input and the volume and sounding timing in which the delicate nuance which is an advantage of the musical sound data inputted in the real time system is expressed. Since it is possible to create new musical tone data by combining it with accurate pitch, which is an advantage of data, it is possible to generate accurate and expressive musical tone data for automatic performance, which is used to improve the function of the sequencer. be able to. Further, by inputting only the pitch in the troublesome or step input and inputting other data by the real-time input, it is possible to accurately input the expressive musical tone data with minimum effort. Further, since the real-time input musical tone data and the step input musical tone data are respectively stored in the storage means,
It is possible to repeat the input of musical tone data and the synthesis of musical tone data many times until the desired musical tone data is obtained.

Furthermore, by combining the execution timing data of the real-time tone data and the pitch data of the step tone data to generate a new tone data string,
It is possible to generate a musical tone data string of accurate pitch by step input including fluctuations by real-time input.

[Brief description of drawings]

FIG. 1 is a block diagram of a control unit of a sequencer which is an embodiment of the present invention, FIGS. 2 (A) and 2 (B) are diagrams showing a tone data table set in the RAM of the control unit, and FIG. 4 and 5 are flowcharts showing the operation of the control section, showing the stored contents of the musical tone table and the procedure for editing musical tone data. 13-RAM, 16-keyboard circuit, 17-switch group.

Claims (2)

(57) [Claims] 1. Real-time musical tone data storage means for storing a real-time musical tone data string consisting of a plurality of musical tone data input by a performance of a performance device, and a plurality of musical tones input by an input operation of a data input device. Correspondence between step tone data storage means for storing a step tone data sequence consisting of data, real time tone data sequence stored in the real time tone data storage means and step tone data sequence stored in the step tone data storage means Musical tone data synthesizing means for generating a new musical tone data sequence by combining musical tone data to be combined with each other and combining some of the musical tone data of the real-time musical tone data sequence and some of the musical tone data of the step musical tone data sequence. Music data processing characterized by Apparatus. 2. The musical sound data synthesizer at least,
The musical tone data processing apparatus according to claim 1, which is means for generating a new musical tone data sequence by combining execution timing data of the musical tone data of the real-time musical tone data sequence and pitch data of the musical tone data of the step musical tone data sequence. .