JP2639380B2 - Automatic performance device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic performance device for automatically generating a tone signal based on performance data stored in a memory, and more particularly to a waveform storing waveform data corresponding to a desired sound such as a human voice. A memory is provided to read out waveform data based on a tone generation command signal and pitch data while an automatic performance is in progress and generate a sound signal, thereby enabling a variety of automatic performances accompanied by shouting and the like.

[0002]

2. Description of the Related Art Conventionally, pitch data and note length data are stored in a memory for each note of a desired music, and the pitch and note length data are sequentially read out from this memory to automatically generate a corresponding tone signal. An automatic performance device which is designed to generate the noise is already known.

Further, a desired sound such as a human voice is detected, waveform data obtained by sampling the sound waveform is stored in a memory, and the waveform data is read out in response to a key pressing operation on a keyboard. Electronic musical instruments (so-called sampling keyboards) that reproduce human voices and the like are also known.

[0004]

In the above-mentioned conventional automatic performance device, "Hayayosho" in folk songs and the like is used.
I couldn't express the shouts and hands of each other, and I couldn't escape the monotony of the performance.

In order to cope with such a problem, it is conceivable to use the above-mentioned sampling keyboard together. However, in such a case, it is necessary to press a key at an appropriate timing, which makes the operation cumbersome. There is an inconvenience.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a novel automatic performance device capable of generating an assistant voice such as a shout at a desired pitch or a hand in a match without manual operation during an automatic performance.

[0007]

SUMMARY OF THE INVENTION An automatic performance apparatus according to the present invention comprises: (a) pitch data and time data for automatic performance of a desired music piece and assistant voices for assisting the performance of the music piece; A first storage unit for storing a pronunciation command signal as the performance progresses, wherein predetermined pitch data of the pitch data for the automatic performance is diverted as pitch data for the assistant voice. (B) first reading means for reading out pitch data and a sounding instruction signal from the first storage means based on time data; and (c) assistant voice data corresponding to the assistant voice. (D) the second storage means based on a sounding instruction signal read from the first storage means and pitch data relating to diversion.
And (e) generating a tone signal based on the pitch data read from the first storage means, and the second storage means. And a signal generating means for generating an auxiliary voice signal having a pitch corresponding to the predetermined pitch data based on the auxiliary voice data read from the CPU.

According to the configuration of the present invention, when the tone generation command signal and the predetermined pitch data are read out while the automatic performance is in progress, the assistant voice data is read out from the second storage means,
Accordingly, the assistant voice signal is generated at a pitch corresponding to predetermined pitch data. Therefore, it is possible to generate an assistant voice such as a shout of a desired pitch or a hand at a desired pitch without a manual operation during the automatic performance, thereby enabling a variety of automatic performances. In addition, since predetermined pitch data of the pitch data for automatic performance is diverted as pitch data for auxiliary voices, the storage capacity can be reduced.

In the automatic performance device according to the present invention,
The pitch data dedicated to the assistant voice may be stored independently of the pitch data for automatic performance.

[0010]

FIG. 1 shows a circuit configuration of an electronic musical instrument provided with an automatic performance device according to the present invention.

The musical score sheet 10 has, as an example, a storage medium 10a such as a magnetic tape affixed to _a lower margin thereof, and the recording medium _10a is necessary for automatically playing music described on the sheet surface. Performance data is recorded magnetically.

The data reading / converting circuit 12 has a data reader (not shown). When the lower portion of the musical score sheet 10 is inserted and set in this data reader, the recording medium 10 _a
, And converts the magnetic performance data into performance data in a bit serial format.

A write control circuit 14 converts performance data supplied from the data read / conversion circuit 12 in a bit serial format into a bit parallel format and writes the converted data in a performance data memory 16 comprising a RAM (random access memory). The write operation is controlled in accordance with a write command signal WI and a write address signal WA.

That is, the write command signal WI is supplied to the memory 16 via the OR gate 18 as the write mode designation signal W, and the memory 16 is set to the write mode. The write command signal WI is supplied to the selector 20 as a control input SB, and sets the selector 20 to the input B selected state. Since the performance data in the bit parallel format is supplied from the writing control circuit 14 as the input B of the selector 20, the performance data is input to the memory 16 via the selector 20. On the other hand, since the write command signal WI is supplied to the selector 22 as the input SA, the selector 22
Selects the write address signal WA as the input A and supplies it to the memory 16. Therefore, performance data is sequentially written into the memory 16 in accordance with the write address signal WA.

FIG. 2 shows the format of the performance data written in the memory 16. The pitch data PD and the note length data LD are stored for each note in the order of the notes D _{1 to} D _n of the music to be played. Is arranged, and the end data ED is arranged at the end of such a data array.

The upper two bits M1 and M2 of the pitch data PD have a pitch mark PM = "10", and the other bits indicate the pitch by a key code KC (a combination of an octave code OC and a no code NC). Express. The upper two bits of each note length data LD have a note length mark LM = “0”.
1 ", and the other bits represent the note length by the length code LNG. As for the rest, all bits of the key code KC are set to "0", and the rest code is represented by the length code LNG. In the end data ED, the upper two bits have an end mark EM = "00" and all other bits are "1".

When the writing of the performance data to the memory 16 is completed, the write command signal WI becomes "0". Therefore, the memory 16 is set to the read mode by the read mode designating signal R = "0", the selector 20 is set to the input A selection state by the control input SB = "0", and the selector 22 is set to the control input SA =
The input B is selected by “0”.

In such a state, the read control circuit 2
4 turns on an automatic performance start switch (not shown), a read address signal RA is generated, and a selector 22 is turned on.
Is supplied to the memory 16 via the. Therefore, the memory 1
From 6, the pitch data PD corresponding to the first note D1 is read. Then, when the mark detection circuit 26 detects the pitch mark PM of the first pitch data PD and generates a detection output Sa, the pitch latch circuit 28 responds to the detection output Sa to cause the pitch latch circuit 28 in the first pitch data PD. Latch the key code KC.

From the memory 16, the first pitch data PD
Subsequently, the first note length data LD is read and supplied to the read control circuit 24. The read control circuit 24 detects the note length mark LM in the note length data LD and temporarily stops the progress of the read address, while the tempo clock signal from the tempo oscillator (not shown) in the rhythm sound forming circuit 30. TCL
Is counted. The counted value is the first note length data L
When the value matches the value of the length code LNG in D, the read address is restarted.

Therefore, the pitch data PD and the note length data LD corresponding to the second note D2 are sequentially read from the memory 16, and the key code KC in the pitch data PD is set to the pitch in the same manner as described above. The length code LNG in the note length data LD, which is latched by the latch circuit 28, is used for the note length measurement in the read control circuit 24. By repeating the above read operation in the same manner as described above, the key code KC of the next note is latched in the pitch latch circuit 28 every time the length of each note ends.

The key code data KCD sequentially transmitted from the pitch latch circuit 28 is supplied to a melody sound forming circuit 32 and converted into a corresponding tone signal. Then, the tone signal MS sent from the melody sound forming circuit 32 is supplied to the sound system 34 and converted into sound. As a result, automatic performance sounds based on the data read from the memory 16 are successively output from the sound system 34, and the automatic performance of the music is achieved.

Since the melody sound forming circuit 32 can form a musical tone signal based on key press data from the keyboard 36, the melody sound forming circuit 32 operates the keyboard 36 during the above-described automatic performance to generate a tone signal from the sound system 34. A manual performance sound can also be generated.

The rhythm sound forming circuit 30 includes a
Any rhythm pattern such as waltz, swing, etc. can be selected and the rhythm sound signal RS can be automatically generated according to the selected rhythm pattern. When the formation circuit 30 is operated, the sound system 34 can also generate an auto rhythm sound.

The waveform storage circuit 38 and the data conversion circuit 40 are provided for recording and reproducing desired sounds such as human voices in connection with the progress of the automatic performance as described above. Details of the conversion circuit 40 are shown in FIG. 3, and details of the waveform storage circuit 38 are shown in FIG.

During the progress of the automatic performance, the control switch S shown in FIG. 4 immediately before the musical tone corresponding to the desired note is generated.
W is set at the writing position b and the microphone 42
When a desired sound such as a shout or clapping is generated, a sound signal corresponding to the sound is supplied from the microphone 42 to the level detection circuit 44.

The level detection circuit 44 generates an output signal "1" in response to the input sound signal rising to a predetermined level.
Supply to AND gate 46. At this time, since the AND gate 46 is turned on in response to the signal “1” from the control switch SW, the AND gate 46 responds to the output signal of the level detection circuit 44 by writing the write command signal WR =
"1" is generated.

The write command signal WR is supplied to the AND gate 48 of FIG. 3 to make it conductive. And memory 1
6, when the pitch data PD corresponding to the desired note is read, the upper two bits M1 and M2 of the data PD are read out.
Of the M1 signal is “1” through the OR gate 50
It is supplied to the D gate 48. Therefore, the AND gate 4
8 is "1".

The output signal "1" of the AND gate 48 is output as the most significant bit signal M1 'of the pitch data PD' including the same key code KC as the input pitch data PD.
The pitch data PD ′ transmitted from the R gate 52 and
Is transmitted as the signal M2 'of the second most significant bit.

On the other hand, the output signal "1" of the AND gate 48
Is sent out as a write trigger signal WT via the OR gate 54. The write trigger signal WT causes the memory 16 to enter the write mode via the OR gate 18 in the circuit of FIG. At this time, the selector 20 has selected the input A. Therefore, the pitch data PD ′ from the data conversion circuit 40 is written into the memory 16 via the selector 20. As a result, in the memory 16, of the pitch data PD corresponding to the desired note, the pitch mark PM = “1”
Only "0" will be rewritten to "11". The mark "11" is used as a sound generation command signal for generating a sound as described later.

In the circuit of FIG. 3, when the control switch SW of FIG. 4 is set to the erase position a, the AND gate 56 is turned on. And the top 2 of the pitch data PD
Assuming that bits M1 and M2 are both "1",
The output signal of the AND gate 56 becomes "1" in response to the output signal "1" of the AND gate 58. Accordingly, the write trigger signal WT is generated from the OR gate 54, and the upper two bits M1 'and M2' of the pitch data PD 'become "1" and "0", respectively, and the mark "11" becomes "10".
(That is, the sounding command signal is erased).

In the circuit shown in FIG. 4, an input sound signal from the microphone 42 is supplied to an analog / digital (A / D) conversion circuit 60. The A / D conversion circuit 60 A / D converts an input sound signal and supplies digital waveform data WD representing an input sound waveform to a waveform memory 62 composed of a RAM.

Write command signal WR from AND gate 46
Is supplied as a write mode designation signal W to the memory 62 to set the memory 62 to the write mode.

Selector 64 receives write command signal WR as control input SA, and selects input A in response. The input A of the selector 64, fixed keycode data FKC corresponding to the pitch of the fixed key code generator 66 for example C ₃ sound is supplied, this data FKC
Is supplied to the variable frequency dividing circuit 68 via the selector 64.

The variable frequency dividing circuit 68 divides the frequency of the clock signal φ by a frequency dividing ratio set in accordance with the output of the selector 64. When the fixed key code data FKC is supplied as described above, this variable A frequency-divided output having a frequency corresponding to the pitch indicated by the data FKC is supplied to the AND gate 70.

Since the write command signal WR sets the RS flip-flop 74 via the OR gate 72, A
The ND gate 70 is connected to the output Q =
Conducted according to “1”. Therefore, the frequency divided output of the variable frequency dividing circuit 68 is supplied to the address counter 76 via the AND gate 70.

The address counter 76 includes the variable frequency dividing circuit 6
The frequency division output from 8 is counted and a write address signal is supplied to the memory 62. Therefore, the waveform data WD from the A / D conversion circuit 60 is written into the memory 62 according to the write address signal. When such a write operation is completed, the flip-flop 74 is reset by the carry-out output CO of the address counter 76, and the AND gate 70 is turned off.

After the desired sound is recorded as described above, the automatic performance is stopped or the music is played until the end of the music. Then, when the automatic performance is started again from the beginning of the music, at the place corresponding to the desired note, a musical tone (automatic performance sound) corresponding to the note is generated and the previously recorded sound is reproduced.

That is, when the pitch data PD 'corresponding to the desired musical note is read from the memory 16, the mark detecting circuit 26 detects the mark "11" and generates detection outputs Sa and Sb. The pitch latch circuit 28 detects the detection output S
The key code KC in the pitch data PD 'is latched according to a and transmitted as key code data KCD. This key code data KCD is supplied to the melody sound forming circuit 32 in the same manner as described above, so that the sound system 34
Produces a musical sound. Also, the key code data KC
D is supplied to the waveform storage circuit 38 in FIG. 4 together with the detection output Sb.

In the waveform storage circuit 38, the key code data KCD is supplied to the variable frequency dividing circuit 68 via the selector 64 in the input B selected state. For this reason, the variable frequency dividing circuit 68 supplies a frequency divided output having a frequency corresponding to the pitch indicated by the key code data KCD to the AND gate 70. At this time, the AND gate 70 outputs the detection output Sb
Sets the flip-flop 74 via the OR gate 72, the output Q =
Conducted according to “1”. Therefore, the address counter 76 counts the frequency divided output from the variable frequency dividing circuit 68 and supplies a read address signal to the memory 62.

The memory 62 has a read mode designating signal R =
Since it is in the read mode by “0”, the memory 62
, Waveform data WD is read in accordance with the read address signal, and digital / analog (D / A) conversion circuit 78
Supplied to The D / A conversion circuit 78 outputs the waveform data WD
Is converted into a digital signal, and a sound signal SS corresponding to the input sound is supplied to the sound system 34. Therefore, the sound system 34 produces an input sound together with the above-mentioned musical sound.

In the above-described embodiment, the mark bit of the pitch data is changed to the tone generation command signal during the progress of the automatic performance. However, the progress of the automatic performance may be temporarily stopped and the tone generation command signal may be written. Alternatively, a tone generation command signal may be written in the performance data in advance.

Further, in the above embodiment, the pitch data in the performance data includes the tone generation instruction signal. However, for example, in the performance data array as shown in FIG. "11" and sound generation control data including a key code are inserted and arranged, sound generation (waveform data reading) is started based on the mark "11" in the sound generation control data, and the pitch of the generated sound is determined based on the key code. (Waveform data reading speed) may be controlled. In this case, the sound generation control data may be written in advance, or may be written at a desired location according to a keyboard operation during an automatic performance or when the automatic performance is stopped. In any case, in this way, it is possible to produce a shout at a pitch different from the pitch of the automatic performance sound (for example, a pitch specified by a keyboard).

Further, in the above embodiment, a plurality of different sounds may be recorded / reproduced by providing a plurality of waveform storage areas in the waveform memory 62 or using another waveform memory.

[0044]

As described above, according to the present invention, it is possible to automatically reproduce a shout of a desired pitch, a hand of a match, or the like at an arbitrary timing during the progress of an automatic performance. The effect is that you can enjoy playing.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a circuit configuration of an electronic musical instrument provided with an automatic performance device according to the present invention.

FIG. 2 is a diagram showing a format of performance data in a performance data memory.

FIG. 3 is a circuit diagram of a data conversion circuit.

FIG. 4 is a circuit diagram of a waveform storage circuit.

[Explanation of symbols]

16 ... performance data memory, 24 ... read control circuit, 32 ...
Melody sound forming circuit, 34 ... sound system, 38 ...
Waveform storage circuit, 40 ... data conversion circuit.

Claims (2)

(57) [Claims] (A) A first memory which stores pitch data and time data for automatic performance of a desired music piece and a sounding instruction signal for an assistant voice sound assisting the performance of the music piece in accordance with the progress of the performance. Storage means for diverting predetermined pitch data of the pitch data for the automatic performance as pitch data for the assistant voice; and (b) from the first storage means. First reading means for reading out pitch data and a sounding instruction signal based on time data; (c) second storing means for storing assistant voice sound data corresponding to the assistant voice sound; Second reading means for reading auxiliary voice sound data from the second storage means based on a sounding command signal read from the first storage means and pitch data relating to diversion; and (e) the first reading means. Based on pitch data read from storage means Signal generating means for generating a tone signal and generating an assist voice signal having a pitch corresponding to the predetermined pitch data based on the assist voice data read from the second storage means. Automatic playing device. (A) a first memory for storing performance data for automatic performance of a desired music piece, a pronunciation command signal for assistant voices assisting the performance of the music piece, and pitch data as the performance progresses; Storage means; (b) first reading means for reading performance data, tone generation command signal and pitch data from the first storage means in accordance with the progress of the performance; and (c) an assistant corresponding to the assistant voice. Second storage means for storing voice data, and (d) reading auxiliary voice data from the second storage means based on a tone generation command signal and pitch data read from the first storage means. (E) reading means;
A tone signal is generated based on the performance data read from the first storage means, and has a pitch corresponding to the pitch data based on assistant voice data read from the second storage means. An automatic performance device having a signal generating means for generating an assistant voice signal.