JPH09106294A - Singing ability scoring device for MIDI karaoke - Google Patents

Abstract

(57) [Abstract] [Problem] MI which is inexpensive and has sufficiently high reliability of evaluation.
A singing ability scoring device for DI karaoke is provided. SOLUTION: A microphone 9 for converting a singing voice of a karaoke singer into an electric voice signal, and a pitch MIDI for converting a voice signal from the microphone 9 into MIDI data.
A converter 11, a hard disk player 4 for reproducing desired MIDI data from a hard disk on which a plurality of karaoke MIDI data are recorded, and a part for a guide melody is extracted from the MIDI data reproduced by the hard disk player 4. Filter 12,
MIDI data and pitch / MIDI converter 1 for only guide melody parts extracted by the filter 12
The comparison / scoring means 13 is provided for comparing the MIDI data converted by 1 to detect at least the pitch and pitch difference between the two and to score the singing ability of the karaoke singer based on the detection result.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a singing ability scoring device in a karaoke system using a MIDI sound source.

[0002]

2. Description of the Related Art A singing ability scoring device in a karaoke system is of a single type that is constructed as a single unit and is connected to an existing karaoke system, and a system built-in type that is pre-installed in the karaoke system from the design stage. There is.

The conventional singing ability scoring device of a single type has a configuration in which only the degree of uniformity of the volume of the singing voice of the karaoke singer is the object of evaluation.

The conventional singing ability scoring device of the system built-in type uses a so-called voice-multiplexed karaoke medium in which only accompaniment data and singing voice and accompaniment data of a professional singer are recorded. Was extracted, the pitch information was calculated from the data of the singing voice, and the pitch information was compared with the pitch information obtained from the voice of the karaoke singer and scored.

[0005]

However, in the conventional single type singing ability scoring device, only the degree of uniformity of the volume of the singing voice of the karaoke singer is the object of evaluation, and the pitch and rhythm are the objects of evaluation. Therefore, there is a problem that the reliability of the evaluation result is low.

Further, the conventional system-embedded singing ability scoring device has a problem that a so-called voice-multiplexed karaoke medium is required. Moreover, it is necessary to have a means for extracting only singing voice data from the data containing only the accompaniment and the data containing the singing voice, and further, the pitch detecting means for calculating the pitch information from the singing voice data, and the pitch from the voice of the karaoke singer. 2 with pitch detecting means for generating information
There is also a problem that two pitch detecting means are required, and the structure is complicated and expensive. In addition, there are cases in which the singing voice data cannot be accurately extracted from the karaoke media, and the reliability of the evaluation is not sufficient.

The present invention has been proposed in view of the above points and is inexpensive and has a sufficiently high reliability of evaluation.
It is an object to provide a singing ability scoring device in IDI karaoke.

[0008]

In order to achieve the above-mentioned object, a singing ability scoring device for MIDI karaoke according to a first aspect of the present invention converts a voice signal corresponding to a singing voice of a karaoke singer into MIDI data. Means and a scoring means for scoring the singing ability of the karaoke singer based on the comparison result by comparing the guide melody part of the MIDI data for karaoke performance with the MIDI data converted by the converting means. Have

Also, the MIDI of the invention described in claim 2
A singing ability scoring device in karaoke includes a microphone for converting a singing voice of a karaoke singer into an electric voice signal, a pitch / MIDI conversion means for converting a voice signal from the microphone into MIDI data, and a MID for karaoke performance.
A desired MI is recorded from a recording medium in which I data is recorded for a plurality of songs.
Reproduction means for reproducing DI data, filter means for extracting a guide melody part from the MIDI data reproduced by the reproduction means, and MIDI data and conversion means for only the guide melody part extracted by the filter means. By comparing the recorded MIDI data with at least the pitch and pitch difference between the two,
The comparison / scoring means for scoring the singing ability of the karaoke singer based on the detection result.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be specifically described below with reference to the drawings.

FIG. 1 is a block diagram of a MIDI karaoke system equipped with a singing ability scoring device according to the present invention.
This MIDI karaoke system includes a music selection unit 1, a video player 2, a video monitor 3, a hard disk drive 4, a MIDI sequencer 5, a sound source generator 6, an amplifier 7, a speaker 8, a microphone 9, an amplifier 10, a pitch / MIDI converter 11, A filter 12, a comparison / scoring means 13, an echo device 14, a scoring display device 15, and a superimposing circuit 16 are provided.

The music selection means 1 supplies music selection information to the video players 2 and M at a predetermined time based on the user's music selection operation.
Output to the IDI sequencer 5. That is, if the current performance is not being performed, the music selection information is immediately output, and if the current performance is being performed, the music selection information is output after the performance is completed.

The video player 2 is composed of, for example, a laser disc player, and outputs video information corresponding to the requested music piece to the video monitor 3 via the superimposing circuit 16 based on the music selection information from the music selection means 1.

The video monitor 3 displays the image and lyrics of the requested song based on the image information from the superimposing circuit 16 which superimposes the lyrics data from the MIDI sequencer 5 on the image information from the video player 2. .

The hard disk drive 4 receives the MID for karaoke based on the instruction from the MIDI sequencer 5.
The MIDI data and the lyrics data of the requested song are reproduced from the hard disk in which a large number of the I data and the lyrics data are recorded and output to the MIDI sequencer 5.

The MIDI sequencer 5 causes the hard disk drive 4 to reproduce the MIDI data and lyrics data of the requested music based on the music selection information from the music selection means 1, and outputs the MIDI data to the tone generator 6 and the filter 12. , And outputs the lyrics data to the superimposing circuit 16.

The sound source generator 6 is composed of, for example, a synthesizer, and the digital M from the MIDI sequencer 5 is used.
Based on the IDI data, an analog signal corresponding to the sound source of the karaoke performance, that is, the accompaniment of the requested song is generated and output to the amplifier 7.

The amplifier 7 mixes the sound source signal of the karaoke performance from the sound source generator 6 and the voice signal of the karaoke singer from the echo device 14, amplifies it, and drives the speaker 8.

The speaker 8 converts the electric signal from the amplifier 7 into a sound wave.

The microphone 9 converts the singing voice of the karaoke singer into an electric signal and outputs the electric signal to the amplifier 10.

The amplifier 10 amplifies the audio signal from the microphone 9 and outputs it to the pitch / MIDI converter 11 and the echo device 14.

The pitch / MIDI converter 11 is composed of a DSP, for example, and converts an analog voice signal from the amplifier 10 into digital MIDI data.
It is output to the comparison / scoring means 13 as vocal MIDI data.

The filter 12 extracts only the part for the guide melody from the MIDI data from the MIDI sequencer 5, and outputs it as the melody MIDI data to the comparison / scoring means 13.

The comparison / scoring means 13 compares the melody MIDI data from the filter 12 with the vocal MIDI data from the pitch / MIDI converter 11, and karaokes according to the degree of coincidence of the vocal MIDI data with the melody MIDI data. The singing ability of the singer is scored, and scoring information based on the result is output to the scoring display device 15.
That is, the better the pitch or pitch of the vocal MIDI data matches the pitch or pitch of the melody MIDI data, the higher the score.

The echo device 14 performs echo processing on the audio signal from the amplifier 10 and outputs it to the amplifier 7.

The grading display device 15 is a comparison / scoring means 13
Display the scoring result based on the scoring information from. The scoring display device 15 may be provided separately from the video monitor 3, or may be integrated with the video monitor 3 to display the scoring result on the display screen of the video monitor 3. Also,
As the display format, various formats such as numbers or bar graphs can be adopted, and it is also possible to display in a plurality of formats at the same time. Further, not only the score but also the rhythm is excellent, the pitch is one step further, and a comment on the singing ability of the karaoke singer may be displayed at the same time.

The superimposing circuit 16 outputs video information obtained by superimposing the lyrics data from the MIDI sequencer 5 on the video information from the video player 2 to the video monitor 3, and the lyrics of the requested song are put in place. The video of the requested song is displayed on the video monitor 3.

The MIDI sequencer 5 and the filter 1
2 and the comparison / scoring means 13 are realized by a microcomputer. Further, the filter 12 may be composed of a DSP.

Next, the operation of the MIDI karaoke system thus constructed will be described. First, when the user performs a music selection operation on the music selection means 1 according to the requested music,
The music selection means 1 outputs music selection information to the video player 2 and the MIDI sequencer 5. As a result, the video player 2 reproduces the video information corresponding to the requested music based on the music selection information from the music selection means 1 and outputs it to the superimposing circuit 16. Meanwhile, MIDI sequencer 5
On the basis of the music selection information from the music selection means 1, the hard disk drive 4 is caused to reproduce the MIDI data and the lyrics data corresponding to the requested music, the MIDI data is output to the sound source generator 6 and the filter 12, and the lyrics data is also output. Output to superimpose circuit 16.

As a result, the superimposing circuit 16
Superimposes the lyrics data from the MIDI sequencer 5 on the video information from the video player 2 and outputs it to the video monitor 3 as video information.

As a result, the video monitor 3 displays the image of the requested song in which the lyrics of the requested song are displayed in place on the display screen. In addition, the color of the lyrics data changes in synchronization with the timing of singing, and teaches the singing timing of the karaoke singer.

On the other hand, the sound source generator 6 generates an analog signal corresponding to the accompaniment sound of the request song based on the MIDI data from the MIDI sequencer 5 and outputs it to the amplifier 7. This analog signal is amplified by the amplifier 7 and converted into a sound wave by the speaker 8.

Thus, the karaoke singer sees the lyrics displayed on the display screen of the video monitor 3 and sings the requested song into the microphone 9 while listening to the accompaniment generated from the speaker 8.

As a result, the microphone 9 converts the singing voice of the karaoke singer into an analog electric signal, and the pitch M
It outputs to the IDI converter 11 and the echo device 14. The audio signal output to the echo device 14 is the echo device 14
Is subjected to echo processing, amplified by the amplifier 7, and output from the speaker 8 together with the accompaniment sound.

Further, the pitch / MIDI converter 11 converts the voice signal of the karaoke singer amplified by the amplifier 10 into a MIDI signal and outputs it as vocal MIDI data to the comparing / scoring means 13. That is, the pitch or pitch is detected from the voice signal of the karaoke singer, and it is digitized to be converted into digital MIDI data. For example, it is considered that the singing voice of the karaoke singer is scored.

On the other hand, the filter 12 extracts only the MIDI data for the guide melody from the MIDI data from the MIDI sequencer 5 and outputs it as the melody MID.
It is output to the comparison / scoring means 13 as I data. That is, although the MIDI data is serial data, 31.
It is transmitted at a transmission rate of 25 bps, and the total is 1 by time division.
It is considered to include 6-channel data.
Since the fourth channel is the data for the guide melody among them, the filter 12 extracts only the data of the fourth channel and outputs it to the comparison / scoring means 13.

As a result, the comparison / scoring means 13 causes the melody MIDI data from the filter 12 and the pitch / MI.
The vocal MIDI data from the DI converter 11 is compared, the singing ability of the karaoke singer is scored, and the scoring result is output to the scoring display device 15 as scoring information. That is,
Since the MIDI data includes data such as pitch, pitch, and volume, the vocal MIDI data and the melody MIDI data are compared, and the pitch and pitch obtained from the vocal MIDI data are melody MIDI data.
It is determined how much the pitch and pitch obtained from the data match, and the higher the degree of matching, the higher the score. For example, two points are deducted each time the pitch shifts by one tone, and one point is deducted each time the pitch shifts by one semitone. However, since the vocal range is different for males and females, adults and children, or individuals, when the pitch shifts by one octave, no point is deducted at all, or a large point deduction is not made.

As a result, the scoring display device 15 displays the scoring result based on the scoring information from the comparing / scoring means 13. This display may be displayed on a display device different from the video monitor 3, or may be displayed on the display screen of the video monitor 3. As the display format, various formats such as numbers or bar graphs can be adopted, and it is also possible to display in a plurality of formats at the same time. Further, not only the score but also the rhythm is excellent, the pitch is one step further, and a comment on the singing ability of the karaoke singer may be displayed at the same time.

As described above, only by converting the voice signal of the karaoke singer into MIDI data by the pitch / MIDI converter 11, the vocal MIDI data and the melody MIDI data for the guide melody are compared by the scoring means 13. By doing so, the singing ability of the karaoke singer can be scored, so that the structure is relatively simple and can be manufactured at low cost. Further, unlike the conventional singing ability scoring device, there is no need to perform an operation to extract the singing voice data from the reproduction data of the voice-multiplexed karaoke media, and the melody MIDI data for the guide melody is used as the scoring standard. , The reliability of evaluation is very high.

In the above embodiment, the pitch / MID
Although the pitch and the pitch of the voice signal of the karaoke singer are converted into MIDI data by the I converter 11, the pitch, the pitch, and the volume may be converted into MIDI data, and the volume may be added to the scoring item.

[0041]

As described above, according to the singing ability scoring apparatus for MIDI karaoke of the present invention, the vocal MIDI data and the guide melody can be converted by converting the voice signal of the karaoke singer into MIDI data by the converting means. Since the singing ability of the karaoke singer can be scored by comparing the melody MIDI data of (1) with the scoring means, the structure is relatively simple and can be manufactured at low cost. Further, unlike the conventional singing ability scoring device, there is no need to perform an operation to extract the singing voice data from the reproduction data of the voice-multiplexed karaoke media, and the melody MIDI data for the guide melody is used as the scoring standard. , The reliability of evaluation is very high.

[Brief description of the drawings]

FIG. 1 shows a MIDI equipped with a singing ability scoring device according to the present invention.
It is a block diagram of a karaoke system.

[Explanation of Codes] 4 Hard Disk Player 5 MIDI Sequencer 6 Sound Source Generator 9 Microphone 11 Pitch / MIDI Converter 12 Filter 13 Comparison / Scoring Means 15 Score Display Device 16 Superimpose Circuit

Claims (2)

[Claims] 1. A converting means for converting an audio signal corresponding to a singing voice of a karaoke singer into MIDI data, a guide melody part of MIDI data for karaoke performance, and a MIDI converted by the converting means.
A singing ability scoring device in MIDI karaoke, comprising: a scoring means for scoring the singing ability of the karaoke singer based on the comparison result with the data. 2. A microphone for converting a singing voice of a karaoke singer into an electric voice signal, a pitch / MIDI converting means for converting a voice signal from the microphone into MIDI data, and a plurality of MIDI data for karaoke performance. Reproducing means for reproducing desired MIDI data from the recorded recording medium, filter means for extracting a guide melody part from the MIDI data reproduced by the reproducing means, and guide melody extracted by the filter means Comparing the MIDI data of only the part and the MIDI data converted by the converting means, at least the pitch and pitch difference between the two are detected, and the singing ability of the karaoke singer is scored based on the detection result.・ In MIDI karaoke characterized by having scoring means唱力 scoring apparatus.