JPH04251295A - Electronic equipment and electronic musical instrument - Google Patents

Abstract

PURPOSE:To decrease operation switches in number without increasing the cost, to easily discriminate the function of the operation switches, and to prevent malfunction. CONSTITUTION:Bar codes indicating plural functions which are brought to effect by a card 21 mounted on a main body are drawn, function by function, on the card 21. When this card 21 is inserted into a card slot part 20, a card sensor reads the bar codes out. Then a CPU carries a function indicated by a bar code to effect. The bar codes corresponding to two kinds of function are drawn on one card 21 and the insertion direction of the card 21 is changed to change the function to be executed. Thus, the insertion direction is changed to add plural functions to one card.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to electronic equipment and electronic musical instruments that have a plurality of operation switches and perform various processes in accordance with these operation switches.

0002

[Prior Art] Generally, electronic devices have multiple functions, and in addition, multiple functions for selecting which of these functions to perform and inputting data. It has an operation switch. At least one or more functions are assigned to each operation switch. Here, an explanation will be given using an electronic musical instrument as an example. In addition to the keyboard for playing, electronic musical instruments have operation switches for selecting tones, accompaniment styles (rhythm patterns such as waltz, bossa nova, etc.), song selection for selecting memory areas for storing performances, etc. is provided on the operation panel.

[0003]Furthermore, a function selection operation switch (mode switch) is also provided for assigning a plurality of functions to one operation switch. Furthermore, some of the above-mentioned electronic musical instruments have a karaoke scoring function using the automatic accompaniment function. In such electronic musical instruments, the automatic accompaniment is compared with the singing voice input from a microphone or the like or the musical instrument performance, and a score is given according to the degree of deviation from the automatic accompaniment. Note that this type of technology is disclosed in Japanese Patent Laid-Open No. 59-97172.

0004

[Problems to be Solved by the Invention] However, in the above-mentioned electronic equipment, since many operation switches are provided on the panel surface, the panel surface becomes complicated, making it easy to operate erroneously and making the configuration complicated. This resulted in a problem that led to an increase in costs. Further, when a plurality of functions are assigned, it is difficult to determine which mode the operation switch is in and what function it has, resulting in the problem of easy operation errors.

[0005] Furthermore, in the above-mentioned karaoke scoring function using an electronic musical instrument, the processing time is long because data is compared with each other during the entire performance time, that is, even when one note is continuously sounded. The problem arose.

The invention as claimed in claim 1 has been made in view of the above-mentioned circumstances, and the panel surface does not become complicated, and
The purpose of the present invention is to provide an electronic device in which the functions of operation switches are easy to distinguish, are difficult to operate erroneously, and do not lead to increased costs. Another object of the invention is to provide an electronic musical instrument that can shorten the processing time required for comparing mutual data.

[0007]

[Means for Solving the Problems] In order to solve the above-mentioned problems, the invention according to claim 1 provides an electronic device main body;
a function instruction means which is an external storage means in which a plurality of data instructing a specific function are recorded at predetermined positions; a mounting means capable of detachably attaching the function instruction means to the electronic device body; a reading means for reading one instruction data corresponding to the mounting direction of the function instruction means from among the plurality of instruction data recorded on the function instruction means when the function instruction means is attached; control means for controlling a function corresponding to the instruction data to be executable on the electronic device main body based on the instruction data, and the function instruction means and the mounting means are configured to control at least two types of the function instruction means. It is characterized in that it has a shape that can be attached to the attachment means in any orientation.

In the invention as set forth in claim 2, there is provided a storage means for storing automatic performance data, a reading means for reading out the automatic performance data according to a predetermined timing, and an external storage means for storing the automatic performance data according to sound generation and muting timings of the read automatic performance data. timing generation means for generating both or either one of the sound generation and mute timings of an external signal inputted from the automatic performance data; and setting a window of a predetermined period before and after either or both of the sound generation and mute timings of the automatic performance data. A window generating means compares, only within the window, the degree of deviation between the sound generation and/or mute timing of the automatic performance data and the sound generation and/or mute timing of the external signal. It is characterized by comprising a comparison means and a scoring means for scoring according to the comparison result of the comparison means.

[0009]

According to the invention as set forth in claim 1, when the function instruction means is attached to the attachment means, among the plurality of instruction data recorded on the function instruction means, depending on the attachment direction of the function instruction means, One piece of instruction data is read by the reading means. Based on the read instruction data, the control means executes a function corresponding to the instruction data. Moreover, when the mounting direction of the function instruction means is changed, instruction data corresponding to the function is read by the reading means according to the mounting direction. As a result, the functions performed by the control means are changed.

According to the second aspect of the invention, the reading means reads out the automatic performance data from the storage means according to a predetermined timing. Further, an external signal is inputted from the outside in accordance with the sound generation and mute timing of the automatic performance data. Next, the timing generating means generates the sound generation and/or mute timing of the external signal. Then, the comparison means determines the sound generation and/or mute timing of the automatic performance data only within the predetermined period of the window set by the window generation means.
The degree of deviation from the sound generation and/or mute timing of the external signal is compared. Furthermore, the scoring means scores according to the comparison result of the comparison means.

[0011]

Embodiments Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. This embodiment will be explained by taking as an example an electronic musical instrument that performs automatic performance and scores a song sung along with the automatic performance. In the figure, a keyboard 1 is a keyboard consisting of a plurality of white keys and black keys, and includes a switch for detecting key depression and key release for each key (hereinafter referred to as a key), a detector for detecting the speed, etc. is provided. The states of these keys are detected by the key press detection circuit 2. The pressed key detection circuit 2 supplies performance information such as a key-on signal of a pressed key, a key code, and a key velocity to the CPU 3 via the data bus DB.

Next, the panel SW4 includes a plurality of operation switches such as a power switch and a volume switch. The SW detection circuit 5 is a circuit that detects whether or not the operation switch is pressed, and supplies information on the pressed operation switch to the CPU 3 via the data bus DB. Card sensor 6
is a sensor that detects that a card (details will be described later) for setting the function of the operation switch is inserted into a card slot provided on the operation panel surface of the main body of the electronic musical instrument. When the card is inserted, a predetermined insertion signal is output to the detection circuit 7. When the detection circuit 7 detects the insertion signal, it determines data representing the type of card and supplies it to the CPU 3 via the data bus DB.

The timer 8 generates a predetermined reference clock CL and supplies it to the CPU 3. The above-mentioned CPU 3 controls the entire electronic musical instrument, sets the functions of the operation switches based on the card data according to the program stored in the ROM 9, and also sets the above-mentioned performance information,
Musical tone data is generated based on operation switch information, card data, etc., and is supplied to the tone generator circuit 10. Further, calculation results generated in the above processing are stored in the RAM 11. The sound source circuit 10 adjusts the level of the musical tone data and supplies the musical tone data to the D/A converter 12. The musical tone data is converted into an analog signal by the D/A converter 12 and then produced by the speaker SP.

Furthermore, the performance data ROM 13 stores performance data for a plurality of pieces of music for automatic performance, and when a predetermined program is executed, the performance data of the corresponding performance piece is read out by the CPU 3. , sound source circuit 10, D/A converter 12, and speaker SP. In addition, when the function of scoring the song sung along with the automatic performance, the so-called karaoke scoring function, is executed according to a predetermined program, the singing voice is
C, CPU via amplifier 14 and waveform shaping circuit 15
3. Amplifier 14 amplifies the singing voice to a predetermined level and supplies it to waveform shaping circuit 15 and speaker SP. The waveform shaping circuit 15 converts audio into a continuous pulse signal having a predetermined period and width.

Next, FIG. 2 shows the arrangement of the above-mentioned parts.
This will be explained with reference to the overall external view of the electronic musical instrument shown in FIG. Note that parts corresponding to those in FIG. 1 are given the same reference numerals and explanations will be omitted. In the figure, the aforementioned card slot section 20 is provided approximately at the center of the operation panel 15. The card slot section 20 is designed to hold only the edge portion of the card, and is provided with a window so that the front surface of the card can be seen. Function selection switches SW1, SW2, SW3, and SW4 are arranged on the side of the card slot section 20. Further, other power switch PW, demo switch SW5, and volume switches SW6 and SW7 are also arranged at predetermined positions. The power switch PW is a switch for turning on the power, and the demo switch SW5 is a switch for automatic performance. Further, the volume switch SW6 is used to lower the volume, while the switch SW7 is used to increase the volume.

Next, the function selection switches SW1 to SW provided in the card slot section 20 and its surroundings are explained.
4 and the card will be explained with reference to FIGS. 3 to 5. First, FIGS. 3 and 4 show the operation panel 15
FIG. 3 is a front view showing the arrangement of the card slot section 20 and function selection switches SW1 to SW4 provided around it.

In this figure, a card 21 is inserted into a card slot portion 20. As shown in FIG. On the surface of this card 21, when the card 21 is inserted with one end A upward (see FIG. 3), the function selection switches SW1 to SW4 are provided.
When inserted with the other end B facing upward (see Figure 4), the function selection switch SW
Characters indicating the functions assigned to SW1 to SW4 are printed so as to stand upright according to the direction in which they are inserted. In this example, if one end is inserted with A facing upward,
The number of songs to be played automatically is printed, and if the other end B is inserted upwards, the number of songs for the so-called karaoke scoring function, which is a function for scoring songs sung along with the automatic performance, is printed. . Printed characters indicating these functions are printed at predetermined positions so as to correspond geometrically to the function selection switches SW1 to SW4.

Further, as shown in FIG. 5, on the back of the card 21, bar codes B1 and B2 representing card functions are printed at predetermined positions, and are composed of a stop bit, a parity bit, and card function data. ing. This card function data is composed of 7 bits, and takes values from ``1'' to ``127'' excluding ``0'', so that 127 types of card functions can be identified. Therefore, when two types of functions are set on one card 21 as in this example, at least 64 cards can be prepared. Further, a barcode reading device is provided at a predetermined position of the card slot section 20.

Next, the operation of the above embodiment will be explained with reference to the flowcharts shown in FIGS. 6 to 12. When the power is turned on, the flowchart shown in FIG. 6 is executed by the CPU 3. This routine is the main routine. First, in step SA1, various variables, registers, etc. are initialized. Next, the process advances to step SA2, and the key press process shown in FIG. 7 is performed. In the key pressing process shown in FIG. 7, first, in step SB1, the keys on the keyboard 1 are scanned. Next, in step SB2, it is determined whether a key-on event has occurred. Then, if there is a key event, this step S
The judgment result in B2 is "YES", and step S
Proceed to B3. In step SB3, a sound generation process is performed on the key where the key event has occurred.

On the other hand, if the determination result in step SB2 is "NO" or if the process in step SB3 described above is completed, the process advances to step SB4. In step SB4, it is determined whether a key-off event has occurred. And if there is a key-off event,
The judgment result in step SB4 is "YES",
Proceed to step SB5. In step SB5, a mute process is performed on the key where the key event has occurred.

On the other hand, if the determination result in step SB4 is "NO" or if the process in step SB5 described above is completed, the key press process is completed and the process returns to the main routine shown in FIG. In the main routine,
Proceed to step SA3. In step SA3, card scanning processing shown in FIG. 8 is performed.

In the card scanning process shown in FIG. 8, first, in step SC1, it is determined whether or not the card 21 has been inserted into the card slot section 20. Then, if the judgment result in step SC1 is "YES",
Proceed to step SC2. In step SC2, card 2
Read the barcode printed on the back of 1. Then, the process proceeds to step SC3, where it is determined whether or not the barcode data has been read correctly. If the determination result in step SC3 is "NO", that is, if the reading was not performed correctly, the process advances to step SC8. At step SC8, a beep sound or the like is generated to notify that the barcode has not been read correctly, and prompts the card 21 to be removed.

Next, in step SC9, card 2
1 is extracted or not. Here, card 21
If it has not yet been extracted, the determination result in step SC9 is "NO", and step SC9 is repeatedly executed until it is extracted. Then, when the card 21 is removed, the judgment result in step SC9 is "YES".
” and returns to step SC1. In this way, the above-described routine is repeated until the barcode is correctly read.

On the other hand, if the determination result in step SC3 is "YES", that is, if the barcode has been read correctly, the process advances to step SC4. At step SC4, the read data, ie, the card function number, is temporarily stored in the register FUNC. for example,
As shown in FIG. 3, when the card 21 is inserted with one end A facing upward, the register FUNC contains "1".
" is set, and when the other end B is inserted upward, "2" is set. Next, step SC
5, register FUNC data (card function)
, and set the initial values of registers, etc. used by the card function according to the card function. Note that even if the card 21 is not inserted, the function selection switches SW1 to S
In order for W4 to function, default values are set in the registers used at that time.

Next, proceeding to step SC6, the register C
Set "1" to ARD. This register CARD is a flag indicating the insertion state of the card 21. Next, proceed to step SC7, and select function selection switches SW1 to SW4.
The card emits a predetermined sound to notify that it is now possible to perform its function, ends the card scanning process, and returns to the main routine. On the other hand, if the card 21 is not inserted, the determination result in step SC1 is "NO" and the process proceeds to step SC10. In step SC10, it is determined whether or not the card 21 has been removed. If the determination result in step SC10 is "NO", the routine is immediately terminated and the process returns to the main routine.

On the other hand, if the determination result in step SC10 is "YES", that is, if the card 21 has been removed, the process advances to step SC11, and the function selection switches SW1 to SW4 are set so that they can execute the function without a card. Performs card termination setting processing to set default values. Next, proceeding to step SC12, the register F
The UNC is set to "0" to indicate that the card 21 is not inserted. Then, the process ends and returns to the main routine. When the card scanning process is completed as described above, the main routine proceeds to step SA4.
Then, the card function processing shown in FIG. 9 is performed.

In this card function processing, first, in step SD1, it is determined whether the register CARD is "1". Here, if the card 21 is not inserted, the register CARD is "0", so step S
The determination result in D1 is "NO", and the routine is immediately terminated and the process returns to the main routine. On the other hand, if the card 21 is inserted, the determination result in step SD1 is "YES" and the process advances to step SD2. In step SD2, the register FUNC is referred to to determine which function the card has inserted. For example, if it is assumed that the card 21 is inserted with one end A facing upward as shown in FIG. 3, the register FUNC is set to "1", so the process proceeds to step SD3. In step SD3, automatic performance processing shown in FIG. 10 is performed.

In the automatic performance process, first, step SE1
, scan the function selection switches SW1 to SW4. Next, in step SE2, it is determined whether any of the function selection switches SW1 to SW4 has been pressed. Here, if none of the function selection switches SW1 to SW4 have been pressed, the determination result in step SE2 is "NO" and the process proceeds to step SE7. In step SE7, it is determined whether any of the play flags PLAY1, PLAY2, 3, or 4 is "1". These play flags PLAY1 to PLAY4 are each "
1" and "0". "1" indicates that the music piece assigned to the corresponding function selection switch SW1 to SW4 is being played, and "0" indicates that it is not being played.

[0029] Then, play flags PLAY1 to PLA
If either Y4 is "1", the determination result in step SE7 is "YES" and the process advances to step SE8. In step SE8, the performance data of the play flag PLAY set to "1" is read out from the performance data ROM 13 and output to the sound source circuit 10 based on the tempo clock TC. Note that the tempo clock TC is incremented in the timer interrupt routine shown in FIG. 11, which is executed by an interrupt occurring at a predetermined period. In the timer interrupt routine, first, in step SF1, a window counter WC is incremented. This window counter WC is a counter used in the karaoke scoring process, and details will be described later. Next, in step SF2, the tempo clock TC is incremented, and upon completion, the process returns to a predetermined routine.

Further, in step SE8 of the automatic performance processing, when the end (END) of the performance data is detected, the corresponding play flag PLAY is reset to "0". On the other hand, if the process of step SE8 is finished, or
All play flags PLAY1 to PLAY4 are "0"
Then, the judgment result in step SE7 mentioned above is "NO".
'', the process returns to card function processing, and then returns to the main routine. On the other hand, if the determination result in step SE2 is "YES", that is, if any of the function selection switches SW1 to SW4 is pressed, the process advances to step SE3. In step SE3, the play flags PLAY1 to PLAY4 of the pressed switch among the function selection switches SW1 to SW4 are inverted. By this, function selection switch SW1, 2, 3 or 4
Each time you press , each alternates between an on state and an off state.

Next, the process proceeds to step SE4, and it is determined whether or not the play flags PALY1 to PLAY4 corresponding to the pressed switch among the function selection switches SW1 to SW4 are "1". If the determination result in step SE4 is "YES", that is, if the button has been pressed anew, the process advances to step SE5. Step SE
In step 5, the tempo clock TC is reset to "0" in order to play the song from the beginning. Next, in step SE6, the play flags PLAY of the switches other than the pressed switch are reset to "0" so that only the selected song is played. Then, the process advances to step SE7. In this case, one of the play flags PLAY1 to PLAY4 is "
1", the determination result in step SE7 is "YES" and the process advances to step SE8. Then, in step SE8, the music is played from the beginning.

On the other hand, if the determination result in step SE4 is "NO", that is, the function selection switches SW1 to
Play flag PL of the pressed switch among SW4
If AY is "0", this means that the performance stop has been selected for the song corresponding to the play flag PLAY, and therefore the process directly proceeds to step SE7 without resetting the counters. In step SE7, it is determined whether or not the play flag PLAY is set to "1".
In this case, since it is "0", the judgment result is "NO", and the process returns to the card function processing, and then returns to the main routine. In the main routine, step SA5
The process proceeds to step SA1 to perform other processing for musical tone generation, and then returns to step SA1 to repeat the above-described process.

[Karaoke scoring process] Next, regarding the case where the aforementioned card 21 is inserted with the other end B facing upward,
The operation will be explained with reference to the flowchart shown in FIG. Note that descriptions of parts common to the processes described above will be omitted. In this case, each function selection switch SW1~
The music to be played is set in SW4 in the same way as during automatic performance, and this electronic musical instrument generates a window of a predetermined period, and only within the period of the window,
The deviation between the sounding timing of automatically played accompaniment musical tones and the vocalization timing of a singer, and the deviation between the muting timing of musical tones and the muting timing of the singer are detected, and scores are given based on the degree of these deviations.

FIG. 14 shows (a) the input waveform of the microphone MC;
(b) A waveform diagram showing the output waveform of the waveform shaping circuit 15 and (c) note data in automatic accompaniment. In this figure, an analog audio signal input from a microphone MC is converted into a pulse signal by a waveform shaping circuit 15. The CPU 3 judges the length of this pulse signal and determines whether it is voice or noise. If it is determined to be noise, it is assumed that there is no input. Card 21 in the direction mentioned above
In the card scanning process shown in FIG. 8 described above, "2" is assigned to the register FUNC in step SC4. Then, in step SC5, function selection switches SW1 to S are selected based on the register FUNC.
A value corresponding to the card function is set in W4.

Next, in the card function process shown in FIG. 9, since the register FUNC is "2" in step SD2, the process proceeds to step SD4, and the karaoke scoring process shown in FIG. 12 is executed. In the karaoke scoring process shown in FIG. 12, first, in step SG1, the function selection switches SW1 to SW4 are scanned. Next, step SG2
As a result of the scan, the function selection switches SW1 to
It is determined whether SW4 has been pressed. Here, if any one of the function selection switches SW1 to SW4 is pressed, the determination result in step SG2 is "YE".
S'' and the process proceeds to step SG3. In step SG3, play flags NPLAY1 to NPLAY4 of the pressed switch among the function selection switches SW1 to SW4 are set.
Invert. As a result, the function selection switch SW1,
Each time 2, 3 or 4 is pressed, the on state and off state are alternately repeated. That is, a switch that was in an on state becomes an off state, and conversely, a switch that was in an off state becomes an on state.

Next, the process advances to step SG4, where the play flags NPALY1 to NPLAY4 corresponding to the pressed switch among the function selection switches SW1 to SW4 are set to "1".
”. If the determination result in step SG4 is "YES", that is, if the button has been pressed anew, the process advances to step SG5. In step SG5, the tempo clock TC is reset to "0" in order to play the song from the beginning. Next, step SG
In step 6, in order to play only the selected song, set the play flag NPLAY for the switches other than the pressed switch to "0".
”.

[0037] When the process in step SG6 described above is completed, or when the function selection switches SW1 to SW4 are
is not pressed, and the judgment result in step SG2 is "
If the result is “NO”, the function selection switch SW1~
When one of SW4 is pressed to turn off,
If the determination result in step SG4 is "NO", the process advances to step SG7. In step SG7,
It is determined whether any of the play flags NPLAY1 to NPLAY4 is "1". If the determination result in step SG7 is "NO", the process is immediately terminated, the process returns to the card function process, and further,
Then return to the main routine. In the main routine,
Proceeding to step SA5, other processing for musical tone generation is performed, and then returning to step SA1, where the above-described processing is repeatedly executed.

On the other hand, if the judgment result in step SG7 is "YES", that is, if any of the function selection switches SW1 to SW4 has been pressed before, or if it is newly pressed, , proceed to step SG8. In step SG8, the tempo clock T
Based on C, the performance data of the play flag PLAY set to "1" is read out from the performance data ROM 13 and output to the sound source circuit 10. The performance data at this time (
The musical note data) is as shown in FIG. 14(c). The sound generation timing of musical note data is indicated by the symbol KON, and the mute timing is indicated by the symbol KOFF. At this time, both melody data and accompaniment data are read out, but data that lowers the volume of only the melody data is output. Next, the process advances to step SG9, where it is determined whether end data (indicating the end of the performance) has been read out as the performance data. Here, when the end data is read, step SG9
The judgment result in step SG1 is "YES", and step SG1
Go to 0. In step SG10, fanfare data indicating that the performance has ended is output to the sound source circuit 10. As a result, a fanfare is emitted from the speaker SP. In this embodiment, there is a large discrepancy between the timing of the automatically played accompaniment tones and the vocalization timing of the singer, and if the scoring results are not within a predetermined range, the accompaniment will not be played to the end.

On the other hand, if the end data has not yet been read out and the performance data continues, step SG9
The judgment result in step SG11 is "NO".
Proceed to. In step SG11, the timing clock T
Add "6" to C. Next, the process advances to step SG12, where the performance data ROM is stored based on the timing clock TC.
The performance data is read from 13. And step SG
In step 13, it is determined whether or not there is performance data. If the determination result in step SG13 is "YES", the process advances to step SG14. Step SG14
Now, clear the window counter WC to "0".

[0040] When the process of step SG14 is completed,
Or, the judgment result in step SG13 is "NO".
In this case, the process advances to step SG15. Step SG1
In step 5, it is determined whether the window counter WC is smaller than "12". Here, the window counter WC will be explained with reference to the waveform diagram shown in FIG. In this figure, (a) is a pulse waveform output by the waveform shaping circuit 15, which is the same as the waveform shown in (b) of FIG. 14(b) is musical note data, which is the same waveform as shown in FIG. 14(c). As shown in FIG. 15, this window counter WC is a counter for a window at the sounding timing and muting timing of a note, and the windows are provided for 16th notes before and after each timing. When a quarter note is 24 clocks long, the window is 12 clocks long. If the determination result in step SG15 is "YES", the process advances to step SG16.

In step SG16, it is determined whether or not there has been a change in microphone input or key data. and,
If the determination result in step SG16 is "YES", the process advances to step SG17. In step SG17, the score P is read from a predetermined table based on the window counter WC, and after adding the score P to the contents of the register POINT, it is stored in the register POINT again. That is, when the window counter WC is "12" or less, a score corresponding to the value of the counter is added. For example, as shown in Figure 15, if the timing is greatly off as shown in ■, no points will be given, if the timing is slightly off as shown in ■, a low score will be given, and furthermore, if the timing is slightly off as shown in If they almost match, a high score is given. Then, the process advances to step SG18.

On the other hand, the wind clock WC is greater than "12", and the determination result at step SG15 is "NO".
”, or the wind clock WC is “1”.
2", but there is no change in the microphone input or key data, and the judgment result in step SG16 is "NO".
If so, the process proceeds to step SG18 without adding any points. In step SG18, "6" is subtracted from the timing clock TC. And step S
In G19, the total score is read from the table based on the timing clock TC. This total score is the passing score at that point in time, which is set on the timing clock TC at predetermined intervals. Next, in step SG20,
The score up to that point (up to the middle of the song) stored in the register POINT is compared with the total score, and it is determined whether the score up to that point is smaller than the total score. If the determination result in step SG20 is "YES", the process advances to step SG21. In step SG21,
Since the score up to that point has not reached the passing score, the play flag NPLAY is cleared to "0" and the performance is ended. Then, the karaoke scoring process is ended, the process returns to the card function process, and then the process returns to the main routine. In the main routine, the process advances to step SA5 to perform other processing, and then returns to step SA1 to repeatedly execute the above-described processing.

On the other hand, if the score up to that point is greater than the total score, the judgment result at step SG20 is "NO".
”, the karaoke scoring process is temporarily ended without ending the performance, the process returns to the card function process, and then the process returns to the main routine. Therefore, in this case, the karaoke scoring process continues until the performance ends. When the performance reaches the end without ending midway, the determination result in step SG9 becomes ``YES'' as described above, and the process proceeds to step SG10, where fanfare data is output to the sound source circuit 10. Then, the fanfare is sounded by the speaker SP. Thereafter, steps SG11 to SG21 are executed in the same manner as described above.

As a result of the above, instead of comparing the entire performance time as in conventional electronic musical instruments that perform karaoke scoring, a window of a predetermined period is generated and the comparison is made within the period of the window. Only in this system, the discrepancies between the timing of automatically played accompaniment tones and the singer's vocalization timing, as well as the discrepancies between the muting timing of musical tones and the singer's muting timing, are detected, and scores are given based on the degree of these discrepancies. , the advantage is that the processing time required for comparison can be shortened. In addition, in the above-mentioned embodiment, in the karaoke scoring process, the singing voice was the subject of scoring, but the performance on the keyboard 1 may also be the subject of scoring.

[0045]Although in the example, scores were given only based on the sound production timing and mute timing, the frequency (pitch) of the input sound can be determined by extracting the pitch or by referring to the key code. It may also be subject to scoring. In addition, the microphone input signal is transmitted to the waveform shaping circuit 1.
5, as shown in FIG. 16, after shaping the pulse signal shown in (a) into the waveform shown in (b) using an integrating circuit, etc., the pulse signal is further shaped into the same format as the performance data shown in (c) using a logic IC. You can also convert and compare. In this way, comparison with musical note data becomes easy. Further, the function of the card 21 may be changed by inserting the card 21 in a direction other than the top and bottom as in the embodiment, such as front and back, or vertical and horizontal.

[0046]

As described above, according to the invention as set forth in claim 1, among the plurality of instruction data recorded in the function instruction means, the instruction data is set according to the direction in which the function means is attached to the attachment means. One is selectively read by the reading means, and the function instructed by the instruction data is executed by the control means, and when the mounting direction of the function instruction means changes, the instruction data read changes accordingly, and the function instructed by the instruction data is executed by the control means. Since the function is executed according to the direction, the panel surface is not cluttered, the functions of the operation switches are easy to distinguish, and furthermore, there are advantages that erroneous operation is difficult to occur and does not lead to an increase in cost.

Further, according to the invention as set forth in claim 2, the comparison means compares the sound generation and/or mute timing of the automatic performance data and the external signal only within the predetermined period window set by the window generation means. Since the scoring means compares the degree of deviation from both or either of the pronunciation and muting timings and scores according to the comparison result of the comparison means, there is an advantage that the processing time required for comparison is shortened. It will be done.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

FIG. 2 is an overall external view of the electronic musical instrument of this embodiment.

FIG. 3 is a front view of the card 21 of this embodiment and a function selection switch provided around it.

FIG. 4 is a front view of the card 21 of this embodiment and the function selection switch provided around it when the card 21 is installed upside down.

FIG. 5 is a rear view showing a barcode drawn on the back side of the card 21 of this embodiment.

FIG. 6 is a flowchart showing the main routine of this embodiment.

FIG. 7 is a flowchart showing key press processing in this embodiment.

FIG. 8 is a flowchart showing card scanning processing in this embodiment.

FIG. 9 is a flowchart showing card function processing in this embodiment.

FIG. 10 is a flowchart showing automatic performance processing in this embodiment.

FIG. 11 is a flowchart showing a timer interrupt routine of this embodiment.

FIG. 12 is a flowchart showing the karaoke scoring process of this embodiment.

FIG. 13 is a flowchart showing the karaoke scoring process of this embodiment.

[Figure 14] (a) Input waveform diagram of microphone MC, respectively;
(b) An output waveform diagram of the waveform shaping circuit, and (c) a waveform diagram of musical note data.

FIG. 15 is a waveform diagram for explaining a window and a comparison process using the window according to the present embodiment.

[Figure 16] (a) A waveform diagram showing a pulse signal obtained by converting the input waveform of the microphone MC into digital, (b) A waveform diagram obtained by integrating and shaping the pulse signal, (c) A logic diagram of the integrated waveform It is a waveform diagram shaped into the same format as performance data by an IC.

[Explanation of symbols]

1...Keyboard, 3...CPU (control means, reading means,
timing generation means, window generation means, comparison means,
Scoring means), 4... Panel SW, 6... Card sensor (
reading means), 13... performance data ROM (storage means)
, 20...Card slot section (installation means), 21...Card (function instruction means), SW1 to SW4...Function selection switch

Claims (2)

[Claims] 1. An electronic device main body, a function instruction means which is an external storage means in which a plurality of data instructing specific functions are recorded at predetermined positions, and the function instruction means is detachably attached to the electronic device main body. possible attachment means, and when the function instruction means is attached to the attachment means, one instruction data corresponding to the attachment direction of the function instruction means among the plurality of instruction data recorded in the function instruction means; and a control means for controlling the electronic device main body to execute a function corresponding to the instruction data based on the read instruction data, and the function instruction means and the mounting means are provided. An electronic device having a shape that allows the function indicating means to be mounted on the mounting means in at least two different orientations. 2. A storage means for storing automatic performance data, a reading means for reading out the automatic performance data according to a predetermined timing, and an external signal inputted from the outside according to sound generation and muting timings of the read automatic performance data. a window generating means for setting a window of a predetermined period before and after both or either of the sound generation and mute timings of the automatic performance data; Only within the window
Comparing means for comparing the degree of deviation between the sound generation and/or mute timing of the automatic performance data and the sound generation and/or mute timing of the external signal; and a comparison result of the comparison means. An electronic musical instrument characterized by comprising a scoring means for scoring accordingly.