JPS6143794A - Scale scoring 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] [Field of Industrial Application] This invention extracts the basic pinch of voice or musical tone,
The present invention relates to an interval notation device that allows the pitch to be changed into a musical pitch and to reproduce that pitch with a plurality of musical tones.

[Conventional technology]

BACKGROUND ART Conventionally, as an electronic device for transcribing the pitches of voices or musical tones, there have been pitch transcription devices at the laboratory level that utilize large or medium-sized computers.

[Problem that the invention seeks to solve]

However, it took a lot of time to recognize voices or musical tones, and there was no way to easily and easily transcribe them. Furthermore, since the pitch data was stored in a cassette tape recorder or the like as a digital value, the stored contents tend to be forgotten as time passes.

[Means to solve all problems]

In order to solve these drawbacks, the present invention is constructed using an ultra-small and convex microprocessor and some hardware, and aims to easily, efficiently, and accurately transcribe the ll'C interval. Furthermore, the idea is to play back the transcribed melodies with beautiful musical tones in all tones.

[For production]

With the above configuration, when recording on a cassette tape or the like, the ddt can prevent the contents from being forgotten by storing all the extracted melody information and reproduced musical sounds.

〔Example〕

The present invention will be explained in detail below based on the drawings.

FIG. 1 is a block 1 diagram of the present invention. 1 is the CPU.

2 is an address decoder, 3 is an audio pitch extractor, and 4 is an R
AM, 5 is a musical note display section, 6 is a musical tone generation section, 7 is a cassette 17 stone section, 8 is a switch section, 9 is a tempo generation section, and 10 is an audio circuit section.

An address signal AD is connected to the address decoder 2 from the CPU 1 , and a data bus (indicated by DATA-BUS) is commonly connected to data terminals from the audio pitch extraction section 3 to the switch section 8 . Also, R from CPU1
Connect to the RD terminals of the D double signal, audio pitch extraction s5, RAM4, cassette 10m, and switch section,
WR double signal, RAM 4, musical note display section 5, musical tone generation section 6,
It is connected to each WR terminal of the cassette 110 section 7.

From the address decoder 2, the ADφ signal is sent to the audio pitch extractor 5, AD1g! No. goes to RAM4, AD2~? The signal goes to the note display section 5, the AD10 signal goes to the musical tone generation section 6, and the A
Dl 1 to 12 signals go to switch section 7, AD1! l signals are respectively connected to the cassette 110 section 7. In addition, the microphone for voice or musical sound input (indicated by MIC) is connected to the IN terminal of the voice pitch extraction section 3, and the output of the voice pitch extraction section 5, φ'L[, is sent to the tempo generation section 8.
The TKMP signals, which are the outputs of 8, are respectively connected to the NIT (interrupt) input terminals of the CPU 1. Output terminal DAOUTFi of musical tone generator 6, acoustic circuit 10 and cassette X
The output terminal 5AVE of the cassette 110 section 7 is connected to the external output terminal RFC for external hunting media such as a cassette tape recorder, and is connected to the external input terminal PTJA.
Y is the input terminal T of the cassette I/Ofrlli 7;
Connections can be made to the OAD and the audio circuit 10, respectively.

Next, each block will be explained.

The address decoder 2 determines which block the CPU 1 is currently working on, and selects one of the blocks. Therefore, the ADφ to AD13 signals shown in FIG. 1 are not limited to this.

The audio pinch extractor 5 extracts pitch, which is a fundamental frequency component, from the audio or musical tone signal selected by the ADφ signal output from the address decoder 2 and input from the microphone. As a pitch extraction method, is it a waveform peak? There are many different methods, such as a peak detection method, a zero-cross detection method, and a method for calculating the autocorrelation number of a waveform.In the end, a pinch in the signal is input to the scale data corresponding to the pinch, and the data bus e (output 6 RAM4Fi, ADI output from address decoder 2
Four choices are made depending on the signal. In the case of RAM archiving, the single-stage VC address input is indicated by the number ↑d, but in FIG. 1 it is shown that it is accessed only by the AD1 signal.

Naturally, multiple address signals such as c P U 1 = RA
Although it is connected to M4, it is omitted in FIG. Therefore, the AD1 signal is shown as a chip select signal for RAM4. Further, since the connection between the CPU 1 and the RAM 4 is already known, detailed connection relationships will not be described. RAM4i
j:, pinch information '1 obtained from the audio pinch extraction unit 3
The scale data after judgment at 0Pt71 and change 1 center is stored in the RAM 4 in all order. Furthermore, when modifying or reproducing the stored scale data, the data stored in the RAM 4 is sequentially read out and processed.

The note support unit 5 is a block that sequentially displays a part of the data stored in the RAM 4 according to each scale, and has a liquid crystal display.
This is typified by LEDs and the like.

Of course, it is also possible to output it to a CRT screen or the like.

AD2~? Although not shown in the drawings, the signals are used to control 1te as shown in T and KD in the case of TJED.

The musical tone generator 6 is a block that recognizes all of the t scale data stored in the RAM 4 and changes the scale data to a musical tone 1c, and also has the function of arbitrarily selecting all of a plurality of types of musical tones.

The musical tone generator 6 generates the scale data (
(Data already recorded in RAM4) All musical tone signals VC are changed. The transformed musical tone signal is reproduced as a musical tone by the acoustic circuit 10. Furthermore, when recording onto a cassette or the like, the recording is performed through the cassette I10 section 7.

FIG. 2 is a diagram showing an embodiment of the musical tone generating section according to the invention. The data bus is connected to the D and N input terminals of the musical tone generation circuit 11, and the AND gate 12 connects ADlo (%i and W).
Each of the R times signals is input manually, and the output thereof can be connected to the WR input terminal of the musical tone generating circuit 110.

The entertainment/selection switch details 15 and the effect switch 14 are each connected to the musical tone generation circuit 11.

The output DAOUT of the musical sound generation 1O1 path 11 is the output of the acoustic circuit 1.
0 and cassette tape 7, the desired musical tone is played back and recorded onto a cassette tape or the like.

If a certain amount of money occurs, the CPU selects the AD10 signal,
Next, the sub-order data of ll'c is placed on the data bus, and at the same time a WR multiplied signal δ is generated. The musical tone generation circuit 11 is a DI
The musical scale data applied to the N terminal is observed from the WR multiplied signal, and the musical scale data is recognized and musical tones are synthesized. Here, the musical tone generation circuit is a TJ8I for musical tone generation currently on the market.
is sufficient, and its peripheral circuits are also well known as electronic circuits for electronic musical instruments. In this embodiment, a musical tone generation LSI
We position it as a custom LEII and apply it. Naturally, it must have a QPU data reception function. As explained above, by transferring cpty to an address with a predetermined scale code 1AD10, beautiful musical tones can be easily reproduced.

cassette shown in Figure 1) l1011s7t:t, RAM
FIG. 4 is a block diagram showing the entire system for recording scale data stored in a cassette tape onto a cassette tape or reading scale data from a cassette tape recorder and storing it in the RAM 4.

J319 shows an example of a cassette 110 part 7 according to the present invention. 1 bin) Dφ in the data bus is connected to 6-state 1 buffer 17.18, AND gate 15,
16 is AD13 (i issue and WR (ni issue and RD 4)
Entering number 5. Antgame) 15.16's output Ig is a 3-state Banhua 17.18 perfect input/output 5t
ill 111. When recording to a cassette tape, etc., one CPU and one AD134. : Transfer between the T and WR Jin.

The 3-state pan 7a 17 outputs the entire contents of the 1-pinto data Dφ in the data bus. The output data is changed to an appropriate recording level by a resistor Z o tzc.

When the output DAOUTTL of the musical tone generator 6 is an L tone, the recording level is changed to an appropriate recording level by the resistor 20 as described above. When reading data from a cassette tape, etc., in f+, QPUl is AD15 (
Send No. 8 and RD signal. The 5-state buffer 18 sends 1-bit data Dφ in the entire data bus output from the pulse waveform shaping circuit 19. Since the pulses output by the air medium of the 19-piece cassette table with the pulse waveform shaping circuit have frequency characteristics, by changing the pulse waveform to an appropriate one, the t! 1.1F)
As an example, even if you use the conventionally known tone burst method, F8 method, PK method, etc., it will not work. ) It doesn't matter.

Also, since data is input and output one pin at a time, C! P0
Needless to say, 1 has the ability to change all data from serial to parallel or from parallel to serial.

The switch unit 8 shown in Figure 1 consists of a mode switch unit for transcribing, modifying, playing, saving and loading settings for cassettes, etc., and start and end switches for each mode. These switch groups are also selected by AD11-12 signals and placed on the data bus. CPU1 reads from this switch data bus and switches as necessary! eDo.

The tempo generating section 9 generates a tempo as a reference for the input melody, etc. 9A, and may be of a type that can easily vary the oscillation frequency completely using a capacitor, a resistor, or the like. The tempo generator 9 generates an interrupt signal T]1 synchronized with the tempo.
1! It is sent to MPt-OPU1.

Acoustic circuit 10f'i, musical tone generator 6 and external input terminal P
41 in Figure 4, which reproduces all the signals from LAY.
An embodiment of a tone piece circuit 1o according to Akira Zuro is shown in the figure.The DC component of the signal from the output DAOUT of the musical tone generator 7 and the external input terminal PLAY is canted by a capacitor 21, and the abrasive resistor 22
Change the level to an appropriate level. The amplifier 25 amplifies the signal by 1, and the speaker 24 obtains the desired m power.

Next, the entire operation procedure will be explained.

A case in which the music transcription mode is entered by operating the switch section 8 will be explained. When a signal is input from MIO, the audio pitch extractor 5 outputs a signal multiplied by φL. The tempo generating section 9 is φL
A predetermined tempo is generated from the double signal, and an interrupt signal TKMPi to the CPU 1 is generated. CPU1 receives interrupt signal TE.
Accordingly, the scale data extracted by the audio pitch extraction section 3 is stored in the RAM 4. Data is also sent to the note display section 5 to display notes.

In the modification mode, the scale data stored in the RAM 4 is read out and modified. In the correction mode, the entire scale is displayed on the note display section 5, and at the same time, the scale data is also transferred to the musical tone generating section 6 to express the musical tone and display.
Easier to correct.

In playback mode, with the scale data stored in RAM4,
In synchronization with the TKMP signal from the tempo generating section 8, the musical note display section 5 and musical tone generating section 6 are simultaneously reproduced. Therefore, in the transcription mode, it is possible to input the scale slowly, or to speed up the playback. That is,
This is because 0PU1 operates in synchronization with the variable TKMP signal.

The save and load modes for cassette tapes and the like will be explained with reference to FIG. FIG. 5 is a diagram showing one embodiment of a data transfer format according to the present invention. (A)
The data specifications are shown in Figure 5, 11C'), where the logic level of "1" is a pulse period of 480μ type X'J, and the logic level of "o" is a pulse period of 980μ type. The case of save mode will be explained.As shown in the save specification of (B) shown in Fig. 5, first the CPU
A musical tone signal corresponding to the scale data stored in AM4 is generated for a predetermined time and recorded on a cassette tape or the like.

The recording time may be as long as the content of the target melody can be understood. Next, a dummy code (for example, 11
111111) for a fixed period of j9r, 1 bit of start bit (for example φ) and 1 bit of start code (for example [1
111φφφφ), stop bit (e.g. 111) 3
Send each bintowo.

Similarly, the scale code is transmitted with a start focus and a stop focus added to each scale code. By sending an end code (for example, 1111φφφ1) to Bin, transmission of the scale data is completed.

Adding a start bit and a stop focus to each code prevents errors during data transmission, and is a method that is often rejected by the general public.

When inputting from a cassette tape or the like and storing it in RAM41C, first the tape is recorded from the back extension circuit 1oVC.
The musical tone C is played back through the bamboo circuit 10.

Next, the CPU 1 reads scale data t- from the cassette 110 section 7. As shown in Figure 5 (C), the data reading timing of the CPU 1 is determined by detecting the falling edge of the data and then looking at the logic level of the data after the 360μ formula, so that the logic level of the data can be reliably determined. It becomes possible. In this case, initially a musical tone signal is input, but it goes without saying that musical tones and scale data can be distinguished by providing a function for detecting dummy chords and start codes. In the above explanation, the data is 980μ formula and 48μ formula.
Although I explained using a pulse period of 0μ, this is not a fairy tale for VC.

〔Effect of the invention〕

As described above, with the configuration of the present invention, the following effects can be expected.

1) FRD recognition of the contents of recorded melodies (scale data) becomes easier.

2) From the user's point of view, it is easy to learn absolute pitches.

5) Since it is possible to reproduce all the melodies composed by the user, it is possible to supply all products with high commercial value. ? Use l1011. of printer etc. + vessel t
-W easy VCil'i) JD Tekiru.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of the present invention, iv! Figure 2 is a circuit diagram showing an embodiment of the musical tone generating section, and Figure 5 is a circuit diagram showing an embodiment of the cassette I10 section.
FIG. 5 is a circuit diagram showing one embodiment of the acoustic circuit, and is a diagram showing one embodiment of the data transfer formant. 1... CPU 2... Address decoder 3... Audio pinch extraction s 4...
...RAM5...Note display section 6...
Musical sound generation section 7...Cassette l10rsls8.
...Switch part? ...Tempo Genseibu
10...Acoustic circuit 11...Musical tone generation circuit 12.15.16...AND gate 19...Pulse shaping + y-shaped circuit. The above Lit Applicant Seiko Electronics Co., Ltd. Agent Patent Attorney Mogami Affairs 17. 18... 5 Steps - Engraving of the drawings of the Bangkok (no changes to the contents) Ding Tsuzuki Hli Masashi, 1F (Method) l Out of town Display of "1980" - Special revision request No. 165161, Masterpiece message of the invention i * in 1 Person making the amendment 5 Date of amendment order November 27, 1981 Nichiju - - ; Gemi Yoshi Σ 4\

Claims (1)

[Claims] A pitch extraction means for extracting the basic pitch of a waveform of a voice or musical tone, a memory circuit for storing pitch information obtained from the pitch extraction means, a means for visually expressing the memory contents of the memory circuit, and the memory. It consists of a means for reproducing the memory contents of the circuit as a plurality of musical tones, and a means for storing the memory contents of the memory circuit in an external magnetic medium, and a plurality of musical tones corresponding to the memory contents of the memory circuit and the memory contents of the memory circuit. A pitch notation device characterized by being configured so that musical tones can be stored on an external magnetic medium or reproduced audibly.