JPS5994791A - Automatic performer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention Field of the Invention The present invention automatically sets control elements such as tempo and timbre based on performance information given in advance from musical scores, etc., and changes these control elements through knob operations by the performer. The present invention relates to an automatic performance device capable of performing.

BACKGROUND OF THE INVENTION Conventionally, this type of device automatically sets the tempo, tone color, etc. of automatic performance according to recorded data such as musical score data provided from the outside, and then changes the setting state using a manual operator on the e-channel surface. It is known (Japanese Unexamined Patent Publication No. 57-94797) that in such an automatic performance device, the automatic setting of each control element based on the above recorded data from the outside is completely independent of the state of the controls on the panel surface. If the knob is not operated properly and the knob is operated even slightly, the setting value will be rewritten to the setting value of the manual operator that operated this knob, and in particular, discrepancies between the recorded data and the setting value of the manual operator ) is large, the set values of the control elements will fluctuate greatly, resulting in a very unfavorable situation.

Purpose of the Invention The present invention has been made in view of the problems with the conventional type described above, and it is possible to automatically set each control element according to externally recorded data, and also to be able to rewrite the setting values of these control elements by manual operation. In automatic performance devices, for control elements whose setting values continuously change, the control element is designed to respond to slight changes in the manual operator based on the idea that the control amount will not be changed unless the amount of change in the manual operator exceeds a certain value. The purpose is to provide a dead zone to prevent malfunctions caused by mis-touching, etc.

Description of examples The present invention will be explained in detail below with reference to the drawings.

FIG. 1 shows a block configuration of an automatic performance device according to an embodiment of the present invention. This automatic performance device reads pitch, note length, tempo, and tone color data recorded on a magnetic stripe 1a formed on a musical score 1 using a musical score data reading device 2, and based on these read gutter, melody sounds, It performs automatic performance of rhythm sounds, accompaniment sounds, etc.

The genealogy data reading device 2 reads the data recorded on the magnetic stripe 1a of the musical score 1, and reads the read pitch, note length,
Data such as tempo and timbre are sent to the data memory 3 consisting of random access memory (RAM), and the reading is performed based on the order of these data or a synchronization signal, strobe signal, address signal, etc. in the recorded data. Address data to which data is to be written is created and sent to the address control circuit 4.

The address control circuit 4 controls data writing to and reading from the memory 3, and includes an address counter. During writing, this address counter is set according to address data from the score data reading device 2 to address the memory 3.

Data is stored in the memory 3 in a format corresponding to the output data format of the musical score data reading device 2. FIG. 2 shows an example of the data format of the memory 3. That is, the most standard tempo data for playing the song is stored at the first address, followed by timbre data and a large number of pitch and note length data.

It should be noted that each of these data has an identification mark indicating the respective data type, and each subsequent circuit uses this identification mark to identify the data to be received. Further, the pitch and note length data are paired, and one pair of pitch and note length data corresponds to one note on the musical score 1. Furthermore, other tempo and timbre data can be appropriately placed between these pitch/note length data pairs.

When the start set switch (not shown) is turned on after the recorded data of Rakujo 1 is written in the memory 3, the address control circuit 4 resets the address counter and writes the tempo data stored at the first address of the memory 3. read out. The tempo control data changing circuit 5 determines that the read data from the memory 3 is tempo data based on the identification mark attached to the data, takes it in, and controls the frequency division ratio or oscillation frequency of the tempo oscillator 6-. The tempo oscillator 6 is a tempo clock TCL having a frequency corresponding to the tempo data passed to the tempo control data changing circuit 5.
occurs.

The address control circuit 4 further includes an identification mark detection circuit, and increments an address counter when the data read from the memory 3 is not note length data. Therefore,
During this start set, the tempo data is sequentially read out from the memory 3, followed by timbre, pitch, and note length data. These data are identified by identification marks, and each timbre data 1CR is the timbre control data change circuit 7.
Then, the pitch data TN is taken into the tone forming circuit 8, and the note length data TL is taken into the note length counter 9.

The musical tone forming circuit 8 receives the captured tone pitch data TN and the tone color data CR supplied from the tone control data changing circuit 7.
A musical tone signal having a pitch and timbre based on the above is generated, and this musical tone signal is produced via a sound system 13 comprising an amplifier 11, a speaker 12, and the like.

The note length counter 9 constantly counts the tempo clock TCL generated by the tempo oscillator 6, and is reset each time the note length data is read from the memory 3, and also counts the value corresponding to the note length data. NEX
Generate T.

The address counter of the address control circuit 4 is incremented by this step signal NEXT, and the next data is read from the memory 3. When this data is not the note length data TL, the address counter is incremented one after another, and the next step signal NEXT from the note length counter 9 is awaited with the next note length data TL read out. Thereafter, the data stored in the memory 3 is sequentially read out every time the step signal NEXT is generated.

The rhythm device 14 generates a rhythm sound signal according to the tempo clock TCL generated by the tempo oscillator 6. This rhythm sound signal is also generated via the sound system 13 together with the musical sound signal.

Note that various well-known devices can be used as a device for generating rhythm sounds according to a predetermined tempo clock, and as a device for forming musical tones based on pitch data and timbre data as described above. A detailed configuration explanation will be omitted here.

(Detailed Operational Description of Tempo Control Data Changing Circuit 5) FIG. 3 shows a detailed block configuration of the tempo control data changing circuit 5. In the same figure, at the time of the above-mentioned start setting, the register 21 contains the operator information MT of the tempo knob 15 (Fig. 1).
P is stored.

When the tempo data TMP is read out from the memory 3 (FIG. 1), the identification mark detection circuit 22 outputs the output IT.
1 ++ is generated, and this output "'1" is sent to the selector 23.
The signal is applied as a selection signal for selecting input A to the input A, and is also applied as a load signal to the register 25 via the OR circuit 24. Therefore, the tempo data TMP is taken into the register 25 via the selector 23, and thereafter this tempo data TMP is supplied to the tempo oscillator 6 (FIG. 1) as control data CHD.

In the automatic performance device shown in FIG.
When each data is read out sequentially and melody sounds, rhythm sounds, etc. are automatically played based on these data, when an operation knob such as tempo knob 15 is operated,
In FIG. 3, the operator information MTP from the tempo knob 15 is taken into a register 21 and is also supplied to a subtracter 26. At this point, the register 21 is still outputting the old controller information MTP', and the subtracter 26 combines the old controller information MTP' from the register 21 with the new controller information MTP from the tempo knob 15. Calculate and output the difference X. The threshold detection circuit 27 generates an output °°1''' only when the difference △X exceeds a predetermined value W, and if the operator information changes by the extent that the tempo knob 15 is touched by mistake, the output '°1''' is generated. °1"' does not occur. The greatest feature of the present invention is that the dead zone of the predetermined value W is provided in response to changes in the operator information.

When the memory 3 (Fig. 1) is not outputting the tempo data TMP, the output of the identification mark detection circuit 22 is '0', so the selector 23 selects input B. Therefore, the control The information is passed through the selector 23 to the disk 25.
is supplied to. Therefore, as described above, when the tempo knob 15 is operated to such an extent that the amount of change Δ in its operator information M T I) exceeds the predetermined value W, the output +1111 of the critical value detection circuit 27 becomes the OR circuit 24 The controller information MTP at this time is supplied to the load signal input terminal of the register 25 through the register 25, and then the new tempo control data CHD is input to the tempo oscillator 6 (FIG. 1).
Supplied as. Therefore, the tempo oscillator 6 generates a tempo clock TCL having a frequency according to the setting value of the tempo generator 15, that is, the manual tempo operator.

Note that the timbre control data changing circuit 7 (FIG. 1) is configured in exactly the same way as the tempo control data changing circuit 5 except that it handles timbre data instead of tempo data, so a description thereof will be omitted.

As described above, according to this invention, each operation knob
Since a dead zone is provided to prevent each control data from being changed when the amount of operation of 1 is less than a predetermined amount, especially if the talent shifts slightly due to an erroneous operation, the control data, such as tempo tone, etc., may be changed inadvertently. It is possible to prevent the sound from turning into a sloppy mess, and therefore, the inconvenience caused by the occurrence of such a situation as a music can be eliminated.

Although the above description has been made regarding the case of controlling the tempo and timbre, it goes without saying that the present invention can be applied to other cases, such as controlling the volume.

[Brief explanation of drawings]

FIG. 1 is a block configuration diagram of an automatic performance device according to an embodiment of the present invention, FIG. 2 is a data format diagram of a data memory in the automatic performance device of FIG. 1, and FIG. 3 is an automatic performance diagram of the automatic performance device of FIG. FIG. 3 is a common detailed block configuration diagram of a tempo control data change circuit and a tone control data change circuit in the apparatus. ■... Music score, la... Magnetic stripe, 2
... Musical score data reading device, 3... Data memory, 4... Address control circuit, 5... Tempo control data change circuit, 6... Tempo oscillator, 7...
・Tone control data change circuit, 8... musical tone formation circuit,
9... Note length data, 13... Sound system, 14... Rhythm device, 21.25... Regisph, 22... Identification mark detection circuit, 23... Selector, 26... Subtraction 27...Threshold detection circuit. Patent applicant Nippon Musical Instruments Manufacturing Co., Ltd. Agent Patent attorney Tatsuo Ito Agent Patent attorney Tetsuya Ito

Claims (1)

[Claims] a data memory in which pitch data, note length data, and control data are stored; a reading circuit that reads out the pitch data and control data from the data memory at a timing based on the note length data; In an automatic performance device comprising a musical tone forming circuit that forms a musical tone based on pitch data and control data, and a control amount operator that manually changes a control amount corresponding to the control data, the operation amount of the operator is changed. An automatic performance device comprising a control amount change control circuit that detects and rewrites the content of the control data to the control amount set by the operator when the operation amount is equal to or greater than a certain value.