JPS6093476A - Music practicing apparatus - 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 The present invention relates to a music teaching device.1. ? The teaching effect is enhanced by arranging musical symbol pieces such as musical note pieces on the channel and generating musical tones or sounds according to the manner in which they are arranged.

Traditionally, music learning sets have been known in which musical note pieces are arranged on staff paper (for example, the set of 34805
However, in such a music learning set, no sound is produced even when the musical note pieces are arranged on the musical staff, so a sufficient learning effect cannot be expected.

An object of the present invention is to provide a novel music teaching device 1'Y that can generate musical tones or sounds according to the arrangement of musical symbol pieces on a 5111 staff.

In the music teaching device according to the present invention, a musical symbol piece such as a musical note piece is provided with a magnet, and a plurality of magnetically sensitive elements are provided on the panel, and the musical symbol piece is detected using these magnetically sensitive elements, and the detected output is The invention is characterized in that it generates musical tones or sounds based on the sound, and an embodiment shown in the illustrated drawings will be described in detail below.

FIG. 1 shows a panel of a music teaching device according to an embodiment of the present invention, and this panel may be installed integrally on the top surface of the device body, or may be installed separately from the device body. It may be configured so that it can be moved as a body.

On the top surface of the panel 10, five IIIi! 12 staves are listed. In FIG. 1, only two measures of the music staff 12 are shown for simplicity, but the number of measures corresponding to an even larger number of measures may be written over multiple lines. i) The various musical symbol pieces (for example, notes, rests, tones, etc.) to be placed on the channel 10 are
(a) corresponds to a whole note, (b) corresponds to a half note, (c) ) corresponds to a dotted half note, (d) corresponds to an eighth note, (el corresponds to an eighth note, (fl corresponds to a whole rest, (gl corresponds to a sharp (h) corresponds to the flat, and fil is for specifying the piano tone. Note that the tone specification piece shown in 0) has a picture of the instrument on its surface instead of letters. Each musical symbol piece may be made of wood, plastic, etc. and constructed in the shape of the corresponding symbol, and the shape of the corresponding symbol is written on the front side. At the same time, a magnet M is fixed or buried on the back side as shown in FIGS. In order to make it possible to discriminate between note types and symbol types, the strength of magnetization of the magnet M is predetermined to be different for each musical symbol piece.

FIG. 4 shows a musical symbol piece N on the staff 12 of the panel 10.
This shows a +-N3Y arrangement, where musical symbol pieces N1, N2, etc. corresponding to musical notes are arranged at desired pitch positions on the musical staff 12, respectively. Further, the tone color designation piece as shown in FIG.

In the panel 10, directly below the writing part of the musical staff 12 and its neighboring area, there is a hall element IJ as shown in FIG. Kusu is placed. In this hole and element matrix, a large number of X lines are arranged parallel to each other in parallel to the direction of extension of the staff, with intervals approximately corresponding to pitch position intervals, and a large number of They are arranged in parallel at appropriate intervals so as to be perpendicular to the direction in which the lines extend. Further, as shown in FIG. 6, a Hall element HD is connected to a location corresponding to an intersection P between each X line. As a result, Hall Shuko Mado IJ
A large number of Hall elements included in the music staff 12 are distributed and arranged in a plane in the X direction and the Y direction, corresponding to a large number of pitch positions on the music staff 12.

In FIG. 6, the Hall element HD has a pair of current terminals'
I'll and T12 and a pair of output terminals T21 and T22
The current terminals Tll and T12 are connected to the X line and the X line, respectively. When a current IY is flowing from the current terminal Tll in the T12 direction, the magnet M of the musical symbol piece described above causes an arrow B to be drawn perpendicularly to the current direction.
When a magnetic field is applied, the output terminals T21 and T22
An electromotive force E is generated between them.

The magnitude of this electromotive force E is proportional to the product of electric current and magnetic flux density B, where YB is the magnetic flux density. Therefore, this electromotive force B
If Y is detected, the type of musical symbol piece can be determined.

Next, with reference to FIG. 7, the circuit configuration and operation of the music teaching device will be explained.

As described above with reference to FIG. 4, after various musical symbol pieces have been arranged on the staff 12 according to the desired music content, when the write command switch 20w7 is turned on, the R-S Frizzo Frozzo η is written in cents. Therefore, the flip-flop ρ
The output ζ becomes 0'', and the ring counter and addition are canceled accordingly.

The ring counters 1 and 2 are used to sequentially scan a large number of Hall elements in each Y line in a pole element matrix circuit including the Hall element matrix as described above. The ring counter receives a clock signal φ and sequentially generates pulses, and these sequential V pulses are respectively supplied to the X lines of the pole element IJ circuit array. In addition, the ring counter % sequentially generates 7 pulses as a carry-out pulse CO input from the ring quantum, and these sequential pulses are respectively supplied to the X line of the Hall element matrix circuit via the inverter circuit 30Y. . Here, the inverter circuit 30 is installed by setting the Y line 'fr: 0'' when the X line is 1'' to connect the Hall element HD to the terminals T'it to T12 as shown in FIG. This is to cause current IY to flow in the direction.

When the successive scanning of the Hall element with respect to the round X line is completed, the ring counter must carry out the carry-out pulse COy! l
- occurs, and in response the ring counter generates a pulse to enable sequential scanning of the Hall element for the next X line. In this way, as the Hall elements are sequentially scanned for each Y line, the Hall element matrix circuit will magnetize the seven magnets each time it detects a musical symbol piece placed on the staff word table. A voltage signal F corresponding to the strength of - Each signal is supplied to the end detection circuit 42.

The instant detection circuit 34 includes a comparator that determines whether the input voltage is within a predetermined voltage range.
An instant detection signal EV'y, ) is generated every time any musical symbol piece is detected.

It includes a note detection circuit, a comparator that compares the input voltage with a reference voltage determined for each note type, and a note length data generation circuit, which generates a note detection signal NT when any note type is detected. , a specific note type (
For example, when a quarter note (quarter note) is detected, note length data LGY corresponding to the note type is generated. The note detection signal NT is supplied as an enable signal EN to a data conversion circuit 44 consisting of a ROM (read-only memory), and in response, the data conversion circuit 44 converts the count output of the ring counter Sae into a key as pitch data. It is converted into code data KC and sent. The key code data KC and note length data LG are combined with each other and supplied to the OR circuit 46 as note data ND in a format as shown in FIG. 8 (al).

The rest detection circuit includes a converter voltage regulator that compares the input voltage with a reference voltage determined for each rest type, and a rest data generation circuit. When a note) is detected, rest data RD corresponding to the type of rest is generated. In this case, the rest data RD is as shown in FIG. is generated and supplied to the OR circuit 46.

The timbre detection circuit 40 includes a comparator that compares the input voltage with a reference voltage determined for each timbre, and a timbre specification data generation circuit. When a specific timbre (for example, a piano timbre) is detected, the timbre detection circuit 40 specifies that timbre. Tone specification data T
CD Y is generated. In this case, the timbre designation data TCD is as shown in FIG. 8(c).
It is generated so that the bit corresponding to the key code 1 expresses an identification code indicating the tone color, and the remaining bits indicate the tone color, and is supplied to the OR circuit 46.

42 repetition/end detection circuits, equipped with a comparator and a symbol data generation circuit to compare the input voltage with a reference voltage determined for each of the two kinds of repetition symbols and final symbol (end symbol) with different directions. When one of the two types of repetition symbol and final symbol is detected, symbol data RPD Y indicating the detected symbol is generated, and
When a final symbol is detected, a road symbol detection signal EDY is generated. In this case, the symbol data RPD is such that the identification code is expressed for each symbol by the bit corresponding to the key code pit of ta+ in the figure, and all remaining billatra are set to f'0'', as shown in FIG. 8(d). It is generated in the area and is supplied to Orr Road 46.

By the way, as mentioned above, when the flip-flop n is set in response to the ON operation of the write command switch 20W, the output Q = "1" of the flip-flop 4 is stored in the RAM (
A music data memory 48 consisting of a random access memory (random access memory) is supplied as a write mode signal W, and the memory 48 accordingly enters a write mode. It is supplied to the differentiating circuit 52 via the differential circuit 52, and the rising differential is obtained. The differential output /V pulse from the differentiating circuit 52 initially resets the R-8 flip-flop 54, and is also supplied to the address counter circuit via the OR gate 56Y to initialize the address counter.

Roughly speaking, the output Q="1" of the Frino flop n is supplied as the OK selection signal SA to the selector 6, and in response to this, the selector ω enters the state of selecting the input Ag.

In such a state, the first event detection signal EV
is generated, this signal EV enables the memory 48 and is supplied as a clock CK to the counter via the selector 6o. Address signal AD
) l supply. Here, if the above-mentioned first event detection signal EV is generated by the detection of the timbre specification piece, then along with this event detection signal EV, the timbre specification data T
The tone color designation data TCD at which the CD is generated is supplied to the memory via the OR circuit 41, and after being written into the memory 48 in response to the first address signal AD,
Similarly, note data ND or rest data RD is written into memory 48 every time event detection signal EV is generated.

Furthermore, when the symbol data RPD corresponding to the repetition symbol is generated, this data is also generated by the event detection signal EV at this time.
is written into the memory 48 in accordance with the above.

When the symbol data RPD corresponding to the final symbol is generated, this data also corresponds to the event detection signal EV at this time.
is written into the memory 48 in accordance with the above.

In this case, the road symbol detection signal FD can also be generated, but this detection signal ED is supplied to the AND gate 62 together with the event detection signal EV at this time, and the AND gate 62 is connected accordingly.
Gate 62 It generates Denotsuki U°°1''.

This output signal "l" is supplied to the flip-flop n through the OR gates 64 and 66χ, and in order to reset it, the ring counter is turned on and off in response to the output Q="1" of the flip-flop. -J, thereby completing the scanning operation and the associated data writing operation.

What has just been described is the ending operation when a music symbol piece corresponding to a street symbol is placed on the staff, but such a music symbol piece is not placed, and therefore the street symbol detection signal ED The termination operation when no signal is generated is as follows: The Hall element is sequentially scanned for each Y line, and when the Hall element scan is completed for all Y lines, the ring counter is incremented and the carried pulse is output. C
OY occurs. This carry out pulse CO is OR
Since the frizz frozzo 22 is reset through the gate man and the controller 66, the same termination operation as described above is performed.

Incidentally, the flip-flop 22 receives the road symbol detection signal ED.
Or the ring counter carries out the carry out pulse CO.
Even if none of the above occurs, the read command switch 20R9
When turned on, a reset is performed in response to the on signal. Therefore, even when the read command switch 20 RY is turned on in this way, the same termination operation as described above will be performed.If the termination operation is performed in any of the above formats, the output Q of the flip-flop n = "l". is supplied to the differentiating circuit 52 and differentiated at the rising edge. Differential circuit 5
The differential output from 2, y, causes the flip-flop 54 to be reset, while being supplied to the counter 56 via the OR gate 56 to reset it. Further, the output Q=''0'' of the flip-flop η is supplied as a read mode signal to the memory 48, which sets it to the Z read mode, and is also supplied to the selector ω, which sets it to the manual B selection state.

The output q-“1” of the flip-flop η is the OR gate 68
is supplied to the R-S fritz front 70 via the
The AND gate 72 becomes conductive in response to the signal ``1''. Therefore, the clock signal φ is supplied to the counter via the AND gate 72 and the selector 60.

When the counter supplies the first address signal ADY for reading to the memory 48 in response to the clock signal φ, the memory 4
Tone color designation data is read from 8.

The identification code bit signal of this timbre designation data is supplied to the data identification circuit 74, and in response, the data identification circuit 74 generates a timbre detection signal TC. The signal of the timbre designation bit of the timbre designation data is latched by the latch circuit 76 in response to the timbre detection signal TO. and,
The signal of the tone designation bit latched by the latch circuit 76 is supplied to the musical tone forming circuit 78, and the musical tone forming circuit 78 responds to the tone of the musical tone to be generated (for example, a piano tone).
is set.

Next, when the first note data is read out from the memory 48, the key code bit signal of this note data is supplied to the data identification circuit 74 and the latch circuit, and the note length bit signal is supplied to the data identification circuit 74 and the latch circuit. It is supplied to the launch circuit 82. The data identification circuit 74 generates a note detection signal ND based on the key code bit signal. In response to this note detection signal ND, a key code bit signal as pitch data is latched into the latch circuit. Further, since the note detection signal ND is supplied as a latch command signal to the latch circuit 82 via the OR gate 84Y, the note length bit signal is latched in the latch circuit 82 in response.

The signal of the key code bit latched by the launch circuit is supplied to the musical tone forming circuit 78, and in response, the musical tone forming circuit 78 generates a musical tone signal. This musical tone signal has a pitch specified by the key code bit signal and has previously set timbre characteristics, and is supplied to the speaker path via the output amplifier 86 and converted into sound.

On the other hand, the code length bit signal latched by the latch circuit 82 is supplied to the comparison circuit 90 as one comparison circuit.

The note detection signal ND sent from the OR gate 84 resets the fritsop 70 and sets the R-8 fritsop 92.

When flip-flop 70 is reset, its output Q
Since the AND gate 72 becomes non-conductive due to ="0", data reading from the memory 48 is temporarily stopped. Furthermore, when the flip-flop 92 is sensed to be set, the note length counter 94 is reset and released by its output q-10'' and starts counting the tempo clock signal TCL.The count output of the note length counter 94 is sent to the comparison circuit section will be supplied as comparative manpower B.

The comparator circuit generates a coincidence signal EQ when the count value indicated by the comparative human power B reaches a value corresponding to the note length indicated by the comparative human power A. This coincidence signal EQ causes flip-flop 92 to be reset, and in response, note length counter 94 is reset. Further, the match signal EQ causes the flip-flop 70 to be set via the OR gate 68, and the AND
Gate 72 becomes conductive. For this reason, data readout from memory is restarted.

As described above, note data is read out one after another from the memory 48 by measuring the note length of a certain note and reading note data corresponding to the next note. Then, each time note data is read out, a musical tone corresponding to the note data is generated from the speaker blades.Next, if rest data is read out from memory, then among this rest data, The signal of the identification code pit (all bits "0") is supplied to the data identification 1 expansion path 74, and the signal of the rest length bit is supplied to the latch circuit 82.

The data identification circuit 74 generates a rest detection signal RT%- based on the identification code bit signal. This rest detection signal RT is supplied to the latch circuit 82 as a latch command signal via an OR gate 84, and in response, a rest length bit signal is launched into the lug circuit 82. Also, O
The rest detection signal RT sent out from the R gate 84 controls the flip-flops 70 and 92 in the same way as the note detection signal ND described above, so the latch circuit 82 and the comparison circuit (a)
A circuit section including 94 note length counters measures the note length in the same manner as in the case of measuring the note length described above. Then, when the coincidence signal EQ is generated at the timing when the period corresponding to the note length ends, the next music data is read out from the memory 48.

Next, referring to FIG. 9, a description will be given of the repetitive performance control operation when symbol data corresponding to a repeated symbol is read out from the memory 48. Figure 9 shows the note arrangement on the musical staff, section N.
It is shown divided into A, NB, and NC, and repeat symbols a and b are placed on both sides of section NB, so the performance should proceed in the order of NA - NB - NB - NC.

Now, as the performance of section NA progresses and the symbol data corresponding to the repetition symbol a is read out from the memory 48,
Based on the signal of the identification code pit of this data, the data identification circuit 74 sets the repeated symbol detection signal RPa to the first
This occurs as shown in Figure 0.

This detection signal RPa is sent to the register 96 as a load command signal L.
Since it is supplied as D, the register % is loaded with an address signal AD indicating the address of the symbol data corresponding to the repetition symbol a.

Thereafter, as the performance of section NB progresses, symbol data corresponding to the repeated symbols are read out from the memory 48 eventually. Based on the signal of the identification code pit in this data, the data identification circuit 74 repeatedly generates the first signal RPb as the I self-sign detection signal RPb as shown in FIG. This pulse P1 is generated by the T-Fritno flop 9
8 and AND gate 100 is supplied with the output σ of Ufurituzo 98, which forms the control signal Sl.
As shown in Figure 10, it changes from 'l' to '0' in synchronization with the falling edge of pulse P1.
100 is the 10th pulse according to the pulse P1 and the control signal Sl.
A control signal 82 is generated as shown.

The adder circuit 102 is enabled in response to the control signal S2, and is configured to add 1 to the address value indicated by the address signal from the register 96. The calculated output from the adder circuit 1()2 indicates the address of the music data next to the symbol data corresponding to the repetition symbol a, and is preset to the counter as reset data PSD in accordance with the control signal S2. After such a preset, the counter
The address signal AD'& is generated to indicate an address incremented by l starting from the address value given. Therefore, music data is sequentially read from the memory 48 starting from the music data next to the symbol data corresponding to the repetition symbol a, thereby making it possible to repeatedly perform the section NB.

Thereafter, when the symbol data corresponding to the repeated symbol is read out from the memory 48 again, the data identification circuit 7
4 is generated as the second repeated symbol detection signal RPb, as shown in FIG. At this time,
Since the control signal S1 is 0'' as shown in FIG. 1θ, the AND condition of the AND gate 100 is not satisfied and the control signal S2 is not generated.Therefore, no data is preset to the counter.And, After the output q of the flip-flop 98 changes from 0'' to 1'' in synchronization with the falling edge of the pulse P2, the performance of sections N and C progresses.

Finally, symbol data corresponding to the road symbol is read from the memo 1J48. Based on the signal of the identification code pit of this data, the data identification circuit 74 generates a road symbol detection signal ENDY. This detection signal END causes the fritz 54 to be set.

Then, the output Q = "]" from the friso flop is mediated by the OR gate 56 and causes the counter 58Y to be reset, thereby ending the automatic performance operation based on the data stored in the memory 48.

In the above embodiment, a magnet with a different magnetization strength is provided for each musical symbol piece to determine the type of note or symbol. However, if there are many types of musical symbol pieces to be used,
Musical symbols that can be used by using poles and north poles 2
Can be doubled. In this case, since electromotive forces with different polarities are generated from the Hall element, it is sufficient to use a converter and a U-retator that are capable of comparing voltages of both polarities.

Also, instead of providing magnets with different magnetization strengths for each musical symbol piece, a plurality of 8 stones with approximately equal magnetization strengths are provided to express patterns or chords depending on the type of note, etc., and this pattern or The code may also be detected. This method is effective when using large musical symbol pieces, and has the advantage that magnetically sensitive elements other than Hall elements can be used to detect the position and type of musical symbol pieces.
The panels are not limited to those used in a flat state, but may be used tilted or standing upright. In this case, in order to prevent the musical symbol pieces from falling off the panel, a suction device such as a suction cup should be provided on the back side of the musical symbol pieces, or
A ferromagnetic plate such as an iron plate may be provided on the V channel. In addition, when a ferromagnetic plate is installed on Zenel, it goes without saying that the magnet to be attached to the music symbol piece should be one that can attract the ferromagnetic plate and hold the music symbol piece; It is necessary to provide a hole so that the magnetic field of the magnet can act on the magnetically sensitive element.

Furthermore, scale names such as C, C, E, etc. may be pronounced as sounds by generating musical tones based on pitch data, or by generating musical tones and using speech synthesis technology. .

As described above, according to the present invention, various musical symbol pieces such as musical note pieces are arranged on the staff staff of the panel, and musical tones or voices are generated according to the arrangement of the musical symbol pieces, so that it is possible to enjoy and efficiently. Particularly, if the music is automatically played based on stored data, repeated listening becomes possible, and an even greater effect can be obtained.

[Brief explanation of the drawing]

FIG. 1 shows a music teaching device according to an embodiment of the present invention.
A perspective view showing the V-channel; FIG. 2 (al~(+1) is a perspective view showing the musical symbols of the gods used in the music teaching device; FIGS. 3(a) to (c) are musical symbol pieces l Fig. 4 is a plan view showing the state 2 in which musical symbol pieces are arranged on the musical staff of the panel; Fig. 5 shows the arrangement of X and Y lines constituting the Hall element matrix. A plan view, FIG. 6 is a connection diagram of the ball element at the X-Y line intersection, FIG. 7 is a circuit diagram of the music teaching device, and FIG. 8 (al~
(di indicates the format of various data used in the device shown in Fig. 7. Fig. 9 is a simplified diagram of the music part including the repeat symbol. Fig. 10 explains the repetitive performance control operation. 10...Panel, 12...Staff staff, M...Magnet, N1-N3...Music symbol piece, HD...Hall element, 20W...Writing Command switch, 20R...Read command switch, 24.26...Scanning ring counter,
Public... Hall element matrix circuit, 34... Int detection circuit, A... Musical note detection circuit, 48... Music data memory, 58... Address counter, 78...
Musical tone formation circuit. Applicant Nippon Musical Instruments Manufacturing Co., Ltd. Patent Attorney Toshian Izawa Figure 1 0 Figure 2 (i) Figure 3 (0) (b) (C) Figure 4 Δ Figure 5 ■ Figure 8 (d ) Stone m stone I4 Figure 9 Figure 10 and □-

Claims (1)

[Claims] 1 (a panel provided with a plurality of magnetically sensitive elements;
(b) a musical symbol piece provided with at least one magnet and disposed on the panel; dl A music teaching device equipped with a sound generation means for generating musical tones or sounds based on the detection output from the detection means. 2. A panel displaying a staff staff on the surface of (a1)
a plurality of magnetically sensitive elements provided on the panel corresponding to a plurality of pitch positions of the musical staff; (di) detecting the pitch position of the musical symbol piece on the staff staff using the magnetically sensitive element; A music teaching device comprising: a detecting means for transmitting pitch data corresponding to the pitch position; and a pronunciation means for generating a musical tone or voice based on the pitch data. 3. A panel that displays a table, and (bl
Said five? f A large number of magnetically sensitive elements are provided on the panel in a plane-distributed manner corresponding to a plurality of pitch positions on the musical staff; A plurality of musical symbol pieces arranged in,
For each musical symbol piece, the figure of the corresponding note is placed on the front side, and one or more magnets are provided on the back side to indicate the type of the note, (di placed on the staff) The pitch position and note type of each musical symbol piece detected are detected using the magnetically sensitive element, and the pitch data corresponding to the detected pitch position and the note corresponding to the detected note type are detected. a detection means for transmitting length data; a storage device for storing pitch data and note length data from the detection means; 4. The music teaching device according to claim 2, characterized in that each of the magnetically sensitive elements is separated from a Hall element. Music teaching device.