JPS5984305A - Magnetic tape - Google Patents

Abstract

PURPOSE:To supply quickly data required for making the accompaniment and scoring of a song by recording data necessary for making the scoring of the song sung to the accompaniment in a section which is independent of the section in which data for the accompaniment are recorded. CONSTITUTION:When an automatic scoring device is operated and a tape recorder 16 is driven, reproduced signal for accompaniment recorded on the 1st or the 3rd track T1 or T3 of a magnetic tape T are put on the air from a loudspeaker 20 through its left-side output terminal, etc. Reproduced signals of a main melody recorded on the 2nd or the 4th track T2 or T4 of the magnetic tape T are supplied to a changeover device 6 through its right-side output terminal. By comparing the appeared frequency of each musical interval of the main melody with the appeared frequency of a song sung by a singer, the marks obtained by the singer is displayed on a mark display device 15. In this way, data required for making the accompaniment and scoring of a song can be supplied quickly.

Description

[Detailed Description of the Invention] The present invention relates to a magnetic j-b used in Kara A station 1# equipped with Kara A/71 end fish equipment, and the accompaniment etc. Tauta no C'F 1lWi
There is a magnetic tape that simultaneously supplies the necessary data to the magnetic tape.

Below, while referring to the block 1'' teeth @ shown in Figure 1,
I will explain the details.

In the figure, reference numeral 5 indicates a switch, which is connected to an amplifier 7 via a switching device G. 8 is a [1-bus filter,
Its cut A) frequency is set at approximately 800 Hl. 9 is a waveform shaping circuit, 10LLr/V converter,
11 is a Δ/D converter, and the output signal of the Δ/i) converter 11 is sent to a medium heat control device 12 (hereinafter referred to as CI). 13 and 14 are first and second storage devices consisting of random access memory. 15
is a score display device controlled by the CPUs 1 and 2, and is connected to the amplifier 47 via 0 to 10.

Reference numeral 17 denotes a preamplifier, into which the left side output signal of the cheap pre-amplifier 1G is input. 18 is a preamplifier as well, and the output of the microphone 5 (, 'H) is input, and the output from each preamplifier 17. Yes, therefore, Mark 5, -Ar recorder 16,
The preamplifier 17, 18, main amplifier 19, speaker 20, etc. constitute a normal Karakake device.

In FIG.
On the Fl, there is a J-Yu for accompaniment, and on the A121-Rack T2, there is a ``Song J-reru Koni tribe n: I
There is also an arc of J, another accompaniment jita on the yN, l-rack 13, and the first turn tl' river data sung with the accompaniment of G on the fourth track T4. Each is recorded.

When 41 units are constructed as described above and J3 is driven, the 1st or 31st rack M of the magnetic arc 1-, and the ilj 41g of T'3 (
Kun-3 + J: For the left side) J terminal, preamplifier 17 and main amplifier 19 to 7'l/C, speaker 20 to fjl? ) 6 C along with the accompaniment of shi and a
If you sing a song, you can use 1;

When the automatic scoring device is operated to drive the cheap player 1G, the accompaniment playback signal recorded on the first or third track IN, T3 of the magnetic arp°1-
Side output: f, preamplifier 17 and main amplifier 19@
1, which is emitted from the speaker 2o through the magnetic arp 1-, and the fourth track r2. The re-gyushin-yumi of the horizontal turn A11 recorded in T4 is supplied to the switching device 0 from the right output terminal. Sing a song to the accompaniment emitted from the speaker 20;
8. Sound is emitted from the speaker 2o via the main amplifier '10.

The switching device 6 is controlled 911 by the CPU 12, and the microphone 5
The audio signal supplied from the
-48, (=1-bass frequency signal) selectively supplies the main melody signal to the low-pass filter 8.
During the supplied signal, only the fundamental frequency components below about 800 if z should pass through the pass filter 8! l, the passing IC fundamental frequency component is supplied to CI'U 12 via a waveform shaping circuit 0.1/V converter 10 and Δ7/]) converter 11. The CPU 12 is opened at a fixed position of approximately 50 m5) f
The input signal of the △/D converter 11 is linked to jJ, and the first or second memory assigned to the culm (frequency) period is set to ,,i,1
At each address of 713.14, the number of occurrences of that rationality (frequency) is stored. That is, while the pre-cutting and grinding device 6 is supplying the audio signal to the low-pass filter 8, the data that has been converted by the Δ/D converter 11 is stored in the first storage device 1.
The data stored in the second storage device 14 is stored in the second storage device 14, and the data that is stored in the second storage device 14 is stored in the second storage device 14. be done.

When you finish singing one page's worth of songs, the first and second storage devices 1
3.14 stores the data for -planes.

If a graph is drawn based on the data stored in the first storage device 13 and the second storage device 14, with the horizontal axis representing pitch (frequency) and the vertical axis representing the number of occurrences, the result will be as shown in FIG. Based on the data stored in the first and second storage devices 13 and 14, in this embodiment, the song was evaluated in the following manner.

First, the distribution curve based on the number of occurrences of each pitch of the main melody is 1(A), and the distribution curve based on the number of occurrences of each pitch of the sung song is 1(A).
The sum of the parts with different numbers of appearances for both B (not hatched in Figure 3) is e = f + - r (<t-gri>
+ 44, 1 Also, the total number of occurrences for both pitches is s=f[JrpC2+g (4))dko^:.

Based on this, the score P was calculated using the following formula.

P=(1-100)X~00 According to this evaluation method, are you an Earth tribe? 1! If the number of appearances for each interval of 7j and the number of appearances for each interval of the sung song completely match, 100 fish will be displayed on the 111-point display device 15, and the number of appearances for each interval of both pitches will be displayed. There are many different culms, and the score displayed on the score display station stomach 15 is low.

Control of these 19 points and score display device 15 is controlled by CI.
] J to U12: All of them are t wa 4.

As mentioned in detail above, this general purpose is used to record the j-ri necessary for scoring a song sung by the key "l" in a part independent of the part where the data necessary for the accompaniment is recorded. Now that I have recorded it, it is my duty to provide Dave with the necessary accompaniment and scoring.

Inside the drawing 7. - Explanation Fig. 1 is a diagram of a power-up device using a light magnetic arc; Fig. 2 is an address map of the first and second storage devices; Figure 4 shows the number of occurrences of each mode, and Figure C shows the magnetic tape of the present invention. .

In the figure, 5 is a microphone, 8 is a []-bass filter, 1
3 is a first storage device, 14 is a second storage device, 1 is a score display device, and 1- is a magnetic tape.

4.7j　n’(Applicant

Claims (1)

[Claims] Data necessary for the accompaniment is recorded in a part independent of the part where the data is recorded, and is necessary for scoring the song sung by the accompaniment.
``Magnetic tape used in a Kara-off scoring device equipped with a Kara-off scoring device characterized by recording F-ta.