JPS599697A - Automatic rhythm 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]

The present invention relates to an improvement in an automatic rhythm performance device for an electronic musical instrument such as an electronic organ. Conventionally, this German automatic rhythm performance device has developed rhythm patterns using instrument-specific drive data for each rhythm instrument for each rhythm (
In addition to providing a rhythm pattern memory stored as binary logic data), a rhythm sound source circuit for generating an instrument sound signal for each rhythm generator is provided, and a predetermined rhythm is driven for each instrument from the rhythm pattern memory according to the count value of the tempo signal. There is a device in which the data is sequentially read out and the rhythm sound source circuit is driven by this instrument-specific drive data. By the way, in actual rhythm performance, the way the rhythm instrument (rl instrument) is played changes slightly depending on the rhythm tempo, so if the rhythm tempo is different, the sounds generated by the rhythm instrument will naturally also be different. Become something. However, in the above-mentioned conventional automatic rhythm performance device, even if the rhythm tempo is changed, the time interval of the instrument sounds that are generated does not change. Since the tempo does not change, there is a problem in Seno 91 that it cannot be compared to the actual rhythm performance. The present invention provides an automatic rhythm performance device in which the musical instrument sounds also change according to changes in the rhythm tempo. When generating an instrument sound signal for each rhythm instrument, the rhythm sound control means causes the instrument sound signal to vary in accordance with the rhythm tempo. DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an automatic rhythm performance apparatus according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is a circuit diagram showing a schematic configuration of this embodiment. In this figure, the rhythm pattern memory 1 contains the instruments for each rhythm instrument (e.g., tii' cymbal, pass drum, conga, bongo, etc.) in each selectable rhythm (e.g., waltz, swing, rumba, g-A'zrock, etc.). This is a read-only memory (ROM) in which separate drive data is stored. That is, in this rhythm pattern memory l, each bit corresponds to /pair/ to each rhythm instrument, and the same number of bits as the types of rhythm instruments are set to /un.
'-Yu memorizes each rhythm in the order in which the rhythm progresses. Next ((Rhythm selection switch 2 is a switch for selecting the rhythm desired by the follower from the above-mentioned rhythms, and is provided on the operation panel of this electronic musical instrument.This rhythm selection switch A signal R8 (co-toy-go-Q) indicating the selected rhythm is output from 2. Reference numeral 3 is a slide-type operation J' for adjusting the rhythm tempo provided on the operation panel section. The tempo control data generator 4 generates rhythm control data that corresponds to the sliding position of the operator 3 according to the resistance value of a variable resistor (not shown) linked to this operation-f-3, and/or rhythm control data indicating mutembo. 1
The rhythm pattern reading circuit 5 supplies the address signal (number A1) generated based on the key signal R8 and the data TMP to the atsis input terminal A of the rhythm pattern memory l. , the rhythm pattern of the rhythm selected by the rhythm selection switch 2, that is, the musical instrument side drive data of the same rhythm is sequentially read out from the memory 1. That is, this rhythm pattern reading circuit 5
rl:, signal 1 (based on S-C the address (g ”
r, , A I specifies the area in Rizno pattern memory 1 where the instrument-specific drive data group of the selected rhythm is stored. l: On the other hand, change this AT+/, Le to the slide position of
Just like that, it is read out repeatedly at the rhythmic tempo. (υ) Rhythm butter:/The musical instrument side drive data RD read from the keyboard 1 is supplied to the rhythm sound source circuit 6. The rhythm sound source circuit 6 is provided with instrument sound key generation means for rhythm instruments of different types, corresponding to each bit /pair/ of the instrument-specific drive data RD. When Rl) is supplied, each musical instrument sound signal generating means corresponding to the 1 bit in the musical instrument drive data Ri)K is driven. In this case, the rhythm sound source circuit 6 changes the musical instrument sound signal generated by each musical instrument sound i-hundred generation means in accordance with the data TMP supplied from the tempo control data generator 4. And this rhythm sound source episode'#! The musical instrument sound signals generated by the 16 musical instrument sound number 1d generating means are synthesized, ttfc, and then supplied to an amplifier 7, where they are amplified and supplied to a speaker 8, where they are produced as a rhythm sound. Next, the detailed configuration of the rhythm tone generator circuit 6 in FIG. 1 will be explained with reference to the block diagram of FIG. 4. First, the rhythm sound source time lj! shown in this figure β! ! To give an overview of r6, this rhythm sound source circuit 6 uses a so-called continuous wave memory method, and generates the musical instrument sound signal 47 of a rhythm instrument of class 8i in a time-division manner. The apparatus is configured such that the generated musical instrument sound signal can be changed into different stages according to the rhythm tempo. That is, the waveform memory 10 in FIG.
As shown in the figure, the instrument director of the rhythm music seven (cymbals, band drums, ... ikonga, ... mankas) of the document plays the instruments according to the rhythm p2'bo for each chestnut instrument. (zu・u)) Write down using the CM code 1. It has been done. In this case, if we take the cymbal instrument l→l, cymbal 44
1 is the cymbal instrumental sound when the rhythm tempo is at its slowest stage, non-baloo II 2 is sumuteno small gako 7

[Cymbal Rijoki Tetsu when it belongs to the Yosu 7-dan Masayoshi stage,
1, Cymbal 'J1-: 3, Car 4 in order
Let the breathed area be vol, (1,')y:,. He also played the bass drum, the first conga, and the Mankas Tani Eikikyo.・Then, "lL', L,) in the drive pume RD calculation (supply Δre, same data)"
When reading out the musical instrument sound of a corresponding rhythm instrument from the waveform memory 10, the musical instrument sound according to the data TMP is read out from four types of musical instrument sounds of the same rhythm instrument. The rhythm sound source circuit 6 will be described in detail below.The tempo discrimination circuit 11 divides the rhythm tempo indicated by the data TMP into g stages, and outputs each of these stages as a 22-bit g signal. The tempo discrimination circuit 11 of SFXNO>CHI loads the g number of ``00'', which belongs to the slowest stage of the rhythm tempo, on the coldest stage of the output L-1, and outputs ``CiLgeV11''.
Outputs the 4N number of , and in the middle of these two stages, 1 belongs to the one who exists r otoba is ゝ'(11'', belongs to the faster one)' is ゝゝ10'' Outputs the 1g issue of the tani. This λ pit and signal will be explained later - Address Memo January 3
Atto l female input end': f-A I) '\lower 1' + Z
The address of pino l-fUII is [signal l2, -r supplied 7:) 0, 0,000, /me 12 is the waveform 7
ノ”: ') 10 (7') /Otsuii l kindCriri/Mu instrument sound (Z;2:t)C, / ,, r-T
, -- Neno [-Force t# fU *) Time-divisionally read out field name σ) Determine the readout sequence and noiming. This channel counter 12U constantly counts the clock φ and outputs one counted value as a davit signal 3;
The period of the clock φ is sufficiently shorter than the minimum rhythm unit time of this electronic musical instrument. The l-bit signal output from this channel counter 12 is sent to the -r address input terminal A D- of the address memory 13.
\Supplied by address No. 18 and () on the upper bit side. 71゛Resistance memory 13 stores the readout start address (start address) and start position 7+f&number (range) when reading instrument sounds from the previous 6-pin waveform menu 10. (, ROM). In this case, address memory 1. Zuno start address memory 13
ai/('4J: Storage area for each instrument prayer in front waveform menu 7 IJ 10 (/'Nonbal 1-1, cymbal #2
．． ...Mankasu #4)'s Tani Saki Uta address is Ll,
L2, L3, ..., ■, 64LI? Ql: The number of words in the storage area of each musical instrument sound is Nl, N2 . N3. ..., I'm trying to make the N64 J shell the only one who likes me. When an address signal is supplied from the front d pito publication circuit 11 and the channel counter 12, this address memory 13 is connected to the start address memory 13a and the range memory 13b.
Data is read out in parallel from the . In other words, if (+6), the channel counter 12 supplies ``ゝoooo'', and the tempo discrimination circuit 11 outputs ``00 //'' (If the if number is supplied, then ``1'' is supplied from the start address memory 13a. "Ll"
At the same time, the range memory 13b
For example, the date r' N I J is read out from the channel counter 12.
48 is supplied, and a signal of ``11'' is supplied from the tempo determination circuit 11, the data ``L8'' is read from the start address memory 13a, and the data ``1N8'' is read from the start address memory 13b. Six data are extracted. The data SA read from the start address memory 13a is supplied to one input terminal of the adder circuit 14, and the data RG read from the range memory IJ13b is supplied to one input terminal of the comparator 15. I is supplied to the input terminal. On the other hand, the instrument side drive data R1 read from the rhythm pattern number 7 in FIG.
- data) is supplied to a parallel-to-serial conversion circuit (hereinafter abbreviated as P-name conversion circuit) 16. (L/)P, /S conversion circuit 1
6 is this data Rl)/I: Takes in parallel Lr and the same data R1) and sequentially outputs r bits in series according to the tarlock φ. The serial data output from the 8 conversion circuit 16 is output from the OR gate 1 through the shift of the 1-1/register 8'/gate (also supplied with the clock φ) and the clock φ. It is taken to the same/ft register ■8. The serial output of this 7/nod register 18 is in the form of θ.Read command terminal 1 of IO
At the same time, if the inverter 19 is supplied to The signal is now supplied to the input terminal ■. Therefore, the output from the 77 register 18 of C is 1. / This one person is either the output signal of the inverter 19 or the output signal at that point.
The signal f#'L-C will not be lost. The signal obtained at the output terminal 0 of this shift register]8 is also supplied to the enable terminal EN of the gate 21.
I'm in the middle of the day. Next, the gate 21, the soft register 22, and the addition pJ path 23.
When each musical instrument sound is read from the waveform memo IJ 10, the part consisting of is for advancing the data starting point i in the storage area of each musical instrument sound in a time-sharing manner. In this part, the shift register 22 has the number of words N in each stage.
1, N, 64, the maximum number of words is H1, it is a stage shift register with a pitch equal to the amount of light, and the shift register is designed to perform shifts according to 1 φ. .This syn) L/output data of register 2 I) 1 is the (l!1 input terminal B of the adder circuit 14)
As soon as the signal is supplied to the adder circuit 23, it is supplied to one input terminal A of the adder circuit 2; I am, I am,
Therefore, the output data of this adder circuit 23])2 is obtained by adding the value "l" to the data D1 and becomes the fc value. This data D2 is applied to the other input terminal B of the comparator 15.
At the same time, it is supplied to the gate 21. This (7
) 21 is its enable terminal 1cN (lCゝ1
“(When g is supplied, the data 1 is in the open state and r is
)2 is supplied to the input/] terminal ■ of nft l/ register "22. Therefore, this・/>y−1・21, nft l/
JiXri221? In the part consisting of the body circuit 23 and the body circuit 23, -C is the enable terminal ID of the gate 1-21.
(Data 1 outputted from the soft 1/ji x ri 22 when the ba signal is being supplied) is weighted by 1' direct 1-1 (1-i.e., talimented) It is taken into the shift register 22 again, and on the other hand, it is output from the shift register 22 when the enable terminal 1 of the gate 21 is set to 1.
f-ta I) 1 was lost and 1st shift 1-0-1 and t, too. C shows the entire rhythm If source circuit shown in Figure 2.
I will explain it to you in detail. Assume that the player has set the rhythm tempo to the longest state. In this case, A/BO edition circuit] 1 i:i
It outputs a signal '11''.Now, from the rhythm pattern memory l shown in Fig. 1, the instrument side drive data R1 that makes each instrument sound of Shinno (ru and bass drum) sound,
In other words, it is assumed that data of /6 pits of 1110...0'' is extracted. In this case, the data RD is sent to the shift register 18 via the P/S conversion circuit 16 for each pit of /6. In this shift register 18, when all bits (76 bits) are taken in, from the output terminal 0 side to the input terminal ■ side, 11!l "1", 0", . . ,
At this point, the count output of the channel counter 12 becomes 'o o o o' (synchronization is maintained in this way). As a result, Start - Value r-L 41 is read out as data SA from γ address memory 13a, - Data R is still read from range memo 913b.
At this point, the processing of the previous musical instrument side drive data RD (the data RD immediately before the current data RD) is entirely performed by photons. Therefore, the data in the valley stage of the register 22 is all "0", and the data D1 is "0". Therefore, at this point, the output data l) 3 of the adder circuit 14 is the value 1. 'l, 41, and this data D3
is supplied as an address signal to the address input terminal AI) of the C waveform memory IO. -At this time, waveform memory 1
Since the l signal is supplied from the output terminal O of the shift register 18 to the read command terminal RC of 0, the 4 memo IJ 1
Data at address L4 of 0, that is, cymbal 4I-4 of 7
PCM data of 6 units 1 is read out. This l) CM
The data is supplied to an accumulator 24. Also, at this point, the output data l)2 of the adder circuit 23 is the value "l-1", so the comparator 15 outputs the value "N4" and fli
iLr 1,. The O signal, which is the result of the comparison with 1, is output from the output terminal EQ [7 and supplied to the inverter 19.\\. (7 Therefore this inverter 19 comes out) The monthly issue is 11g
It is numbered. Also, at this point, the "l" signal output from the shift register 18 is output from the gate 20.
and the OR gate 17 through the same shift register 1.
-C is supplied to the input terminal of 8. Further, since the gate 21 is in the open state, the data D2, that is, the value "l", is supplied to the input terminal (2) of the shift register 22. Now, assume that the next clock φ is generated. In this case, the output word of channel no-no/ri12 is '0001''
Therefore, the value 1'L 81 is read out as data SA from the start address memory 13a, and the value 1'L 81 is read out as data RG from the deep range memory 13b. Also in this case, shift register 18.2
2 is shifted by /sdage, so the contents of the shift register 18 become ゝゝ1'', VXO'', . . ., '0'', 1'' from the output terminal OJ toward the input terminal ■ side. The contents of the shift register 22 are output to the output terminal O1lII.
From I to input terminal I 11+11 [0], -...
..., "0", [l]. That is, in this case, data DI is "0", data l)3 is the value IL8', data D2 is [l-1, output terminal EQ of the comparator 15] signal is 1d, shifted to the outer star 18σ) Output signal volume
“1ro No. 7, the human power data of register 22 is the value “1”
becomes. In this case, waveform Mehi IJ 1
The data at the L8 address of the bass drum 11-4, that is, the PCM data of the second position of the bass drum 11-4 is read out.
The vI data is supplied to the aggregator 24. Then, the next clock φ is assumed to be the older clock /C. In this easy case, the output number 4 of the Noyannel counter 12 is ゝゝ001
(Since the value becomes 1'', the f line rL121 is read out as data SA from the start address memory 13a, while the data RG and L7 are read out from the range memory 13b15 and 1 line lN12j. Since the shift registers 18 and 22 are shifted by 7, the contents of the shift register 18 are 10", . . ., chin", 11 from the output terminal O side to the input terminal I side.
The contents of the shift register 22 are 01, . . . from the output terminal OJ to the input terminal ■.
, "OJ, -11", Ill. /LwaI-) In this case, the data l) 1 is l'' 01
, data 1) 311. l L 12 J, data I
) 2&:i:l l-1, output terminal E of ratio I articulator 15 The data becomes "0". However, in the case of -, the address input terminal A I) of the waveform memory 10 has the value [■, 1
2-1 is supplied, but 0- is supplied to the read command terminal RC.
Unless the number 100 is supplied, the data of the same waveform memo IJ10 must be started. Hereinafter, when the clocks φ are sequentially generated, the operation is performed based on the above-mentioned principle, but until the count output signal of the channel counter 12 reaches '1111', the output of the (Since the if number is "0" in either case, the PCM data of the waveform memo January O is not read out. The above is the time division of the instrument sound for the current instrument-specific drive data RI mentioned above) There is a gb-C at the /scan point in the read process. L/1-C-f for this/scan
The fcP CM data digitally synthesized by the FM generator 24 is supplied to the amplifier 7 shown in FIG. Next, it is assumed that the next tarlock φ occurs following this point.In this case, the output signal of the chance counter 12 becomes "0000", so the data is transferred from the start-γl°less memory 13a. Data [Li2 protrudes)] is read out as SA, and data IN41 is read out as data RG from the range memory 13b. f Boat towards ILIIIゝゝ㷲ゝゝゝ1“
~ゝ0〃,...,O'', and ゛ma7!c/contents of the foot register 22 d from the output terminal 0 side to the input terminal ■ side are ``1'', [l-j, rOJ,... ..., "01. In this case, ゛r-data D1 is 111.1~Me1)3 is rL4-1-1.J, data 1] 2d, "2"
, the signal at the output terminal EQ of the comparator 15 is ゝゝ0“100,
Output signal of shift register 18 &: J: l rH,
/The input data to the throat register 220 becomes "2". Therefore, in this case, the data at address (L4-1-1) of the waveform memory 10, fixb, the second p of cymbal 4U4.
cMy-Evening is read. Then, when the next "cock φ" occurs, the above-mentioned
It is the same as I'tlJ's work, and the waveform method is O's (, L
8+1) Address f-ta, Zunat) Chi bass drum #4,
2tp, the i-th PCM data is read, and the next clock φ is generated.IL channel counter 1
The count output signal of 2 is ゝゝOOl (from 1″ to ゝゝ111
Data is not read out from the waveform memory 10 while the data changes to 1"-.The above is the time-division adjustment of the musical instrument sound for the data 1 (1). 6 degrees or less in the scan-th operation (for each scan, data other than OJ at each stage of /Ftregi Incremented, cymbal #-4 (knee), 1:
The data of Hypusdrano/ILl after Go word/)PCν■ data are sequentially read out. Then, suppose that the N4th action starts (Ta/
and 12, and assume that N4<N8. ). In this case, when the channel counter 12 outputs "1100", the data SA is output from the star address memory 13a and -C(+/
i r L 4-1 is protruding 7L, range memory 13
b as data RG (irN4.1 is read out. In this case, the contents of the shift register 18 are
Force yH1if From the U side to the input terminal ■ ゝゝ1''
, \ゝ1", 11(1'/, ..., 0",
Also, the contents of the shift register 22 are written from the output terminal 0 side to the input terminal 111111 as follows: l-N4-1 -1, r
N4-1. 1. "O", ...
・10-] and na'-). However, 2) lever jMJ
も、あー・ノI）lはl” N 4-11.7-
Me L) 2 is l-N41, output terminal E Q of comparator 15
(D signal is data RG and data I) 2 are both values rN4
．． Since it is J, the output of the shift register 18 is the output of the shift register 18. is the value 1- N 4 j and f
L. Therefore, this place. Data at address (L4+N-1-1) of waveform memory 10,
The PCM data (final data) of the N4 embryo of Zonharui 4 is read out. Next, when the next clock φ is generated, the contents of the shift register 18 become ``l'', ``0'', . The pit force of the corresponding ゝl'' changes to ゝO'', and after that, d and 4 output of the PCM data of cymbal well 4 is performed and becomes 7r. - Also, when the N8th scan operation is performed , the 11" pit corresponding to the bass drum in the shift register 18 changes to "0" in the same way as the operation of the N4th scan described above, and the PCM data of the bass drum 4L4 is no longer read out. As described above, the current instrument side drive data)
Time-division readout of musical instrument sounds for the LDVC is performed. Note that the read operation described above is completed before the next musical instrument side drive data RD is supplied. Furthermore, if the above-mentioned instrument side drive data RI) is supplied, and the rhythm tempo is set to the slowest state, for example, the CM data of cymbal #1 and bass drum 4J = 1 will be read out. Become. However, according to this embodiment, the pitch, timbre, envelope, etc. of the rhythm tones to be produced can be changed in stages according to the rhythm tempo, thereby making it possible to achieve a performance effect close to that of an actual rhythm performance. can. In this embodiment, the timbre of the rustling sound, etc. is changed by QC in II stages [7], but it would be more effective to change it in more stages. In addition, in this embodiment, the rhythm sound individual source circuit is continuously
Although a memory system is used, this 1 may be configured with a conventional rhythm sound source circuit using a resonant circuit, a noise generator, a filter circuit, an opening/closing circuit, and the like. - Also, a rhythm selection signal RS is supplied to the tempo discrimination circuit 11 in this embodiment/example as shown by the dotted line arrow in FIG. -C
Good too. As is clear from the explanation below, the automatic rhythm performance device according to the present invention drives the rhythm sound source circuit one by one according to the rhythm pattern read out from the rhythm pattern memory, and generates the instrumental sound of each rhythm instrument. When generating the rhythm sound, the rhythm sound control means changes the instrument sound here according to the rhythm tempo, so that the pitch of the rhythm sound that is pronounced, The envelope etc. can be changed in accordance with the rhythm tempo, thereby making it possible to perform automatic rhythm performance using instrument sounds that are extremely close to actual rhythm performance.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of an automatic rhythm playing device according to the present invention. FIG. 3 is a block diagram showing the detailed configuration of the rhythm sound source circuit 6 in the embodiment. FIG. 2 is a diagram showing the storage contents of the waveform memory 10 in FIG. 1: Rhythm pattern memory, 2: Rhythm selection switch, 4: Tempo control circuit (tempo control data generator), 6: Rhythm source circuit,
1o... Waveform memory, 11... Tempo discrimination circuit, 13... Address memory. Applicant 1" Honkyo Musical Instrument Manufacturing Co., Ltd. Figure 3 Ll N1 Shinpachi 1 Shii I 2 Shinpachi J Shii 44:2 3 Shinpachi 3 Le-F + 3 4 Shinpachi 1 Shi 4 + 4 5 N5 Bust Ram: 11:1 10 L6 N6 Nogusu 1 Lahe Ritsu 2 7 Lotus] - Ram - 14:3 8 Lotus [Utheki 4 9 High concave well 1 101

Claims (2)

[Claims] (1) An IJ rhythm selection switch, a tempo control circuit for controlling the rhythm tempo, and a rhythm pattern memory in which the rhythm patterns of each rhythm are stored;
and a rhythm sound source circuit that generates a CIJ rhythm sound signal in response to a rhythm pattern read out from the previous rhythm pattern memory based on the output of the previous rhythm selection switch and the control output of the tempo control circuit. In the automatic rhythm performance device, a rhythm sound control means is provided for changing the rhythm sound (No. 74) generated by the rhythm sound source circuit in accordance with the control output of the tempo control circuit, An automatic rhythm performance device characterized by changing according to the rhythm tempo. (2) The rhythm sound source circuit is configured to store a plurality of instrument sound signals for each instrument specified by the rhythm pattern, and the rhythm sound control means stores a plurality of instrument sound signals for each instrument in the rhythm sound source circuit. Claim 1, wherein a storage area for musical instrument sound signals according to a control output of the tempo control circuit is designated for each musical instrument from storage areas for musical instrument sound signals. Automatic rhythm playing device.