JP3892433B2 - Karaoke device, karaoke method, and program - Google Patents

Description

  The present invention relates to a karaoke apparatus, a karaoke method, a program, and a program for realizing these on a computer.

  Conventionally, various karaoke apparatuses have been provided. In the karaoke machine, music data prepared as MIDI (Musical Instrument Digital Interface) data and voice waveform data prepared as PCM (Pulse Code Modulation) data are prepared in advance, and this is output as accompaniment data. At the same time, the lyrics are displayed on the screen of a television device or the like in accordance with the timing of the audio output. In addition, the input of the singer's voice waveform data is received from a microphone connected to the karaoke apparatus, and this is mixed with the accompaniment data as appropriate, and the voice is output from the speaker. The accompaniment data may be recorded on an information recording medium such as a CD-ROM (Compact Disk Read Only Memory) or a DVD-ROM (Digital Versatile Disk ROM), or other storage device via a computer communication network. In some cases, it can be obtained from

  Conventionally, such a karaoke apparatus is used in a karaoke-only facility called a karaoke box and various restaurants, and in these facilities, it is common to output accompaniment and singing at a loud volume from a speaker. It was the target.

  In recent years, with the development of computer technology, an environment in which karaoke can be enjoyed using game devices in each home is being prepared. In karaoke using such a game device, the video output is connected to a television device or the like and used to display lyrics and the like. The microphone is directly connected to the game device, and the sound input from the microphone is mixed with the accompaniment data stored in the DVD-ROM for the game device or the accompaniment data downloaded via the computer communication network, and the television device or The sound is output from the speaker via the audio input of the stereo device.

On the other hand, in a karaoke apparatus, there is also proposed a method for scoring a singer's singing by comparing speech waveform data input from a microphone with scoring data stored in advance in association with accompaniment data. The technology of such a karaoke apparatus is disclosed in the following documents, for example.
Japanese Patent No. 2925759

In the technique disclosed in [Patent Document 1], stored accompaniment data (corresponding to “music data” in this document) is reproduced. Separately, the current position display code, scoring data ( Corresponds to “pitch data” in this document).
When the current position display code is extracted, a timing signal is output.
The scoring data is temporarily stored in the buffer, but when the timing signal is output, the temporarily stored scoring data is output.
On the other hand, when the timing signal is output, the analysis result of the fundamental frequency of the audio signal input from the microphone is output.
Then, the output scoring data is compared with the fundamental frequency, and a message corresponding to the comparison result is displayed.

  However, for scoring in karaoke, a technique is required to make the scoring result as close to human sense as possible.

In particular, when you sing only a part of a song, start singing in the middle of an accompaniment, stop singing in the middle, or want to score a singing part of the song called rust It is desirable to be able to score the karaoke at the site more like a human sense.
The present invention has been made to solve such a problem, and provides a karaoke apparatus and a karaoke method suitable for appropriately scoring a singer's singing, and a program for realizing these by a computer. Objective.

In order to achieve the above object, the following invention is disclosed in accordance with the principle of the present invention.
The karaoke apparatus according to the first aspect of the present invention includes a storage unit, a playback unit, an input receiving unit, a scoring unit, and an output unit, and is configured as follows.

  That is, the storage unit stores the accompaniment data and the scoring data in advance in association with each other. As the accompaniment data, various data formats such as PCM data and MIDI data can be adopted. However, these data formats store accompaniment data as a data string and disclose the reproduction of accompaniment data. The data fragments contained in are processed in time order. Therefore, scoring data is stored in association with the data fragment.

  As scoring data, for example, a fundamental frequency or intensity (volume, input level) can be adopted. If the accompaniment data is MIDI data, one channel of MIDI data is assigned to the scoring data, the channel does not output audio as scoring data, and other channels play MIDI as accompaniment data. Conceivable.

  On the other hand, the reproducing unit reproduces accompaniment data stored in advance. As described above, when the accompaniment data is stored in the MIDI data format, the sound source data prepared by the karaoke apparatus is used to convert the data into voice waveform data in the PCM format or the like and reproduce it. If it is stored as compressed data in the Ogg Vorbis format, etc., it is played back after being decompressed.

  Furthermore, the input reception unit receives an input of a voice signal. The input receiving unit is typically configured by a microphone, receives an input of a voice sung by a singer, and outputs this as an audio signal. Further, A / D (Analog / Digital) conversion is also performed as necessary.

  The scoring unit stores the scoring stored in association with the currently reproduced accompaniment data when the size of the audio signal that can be accepted is equal to or greater than a predetermined threshold (hereinafter referred to as “scoring execution level”). The data is compared with the audio signal and scored. That is, in the technique disclosed in [Patent Document 1], while the present position display code prepared by the karaoke device provider (the karaoke data provider) is used as a trigger, the scoring is performed in the present invention. Scoring is triggered by the voice input of the singer.

  Further, the output unit outputs the scored result. The scoring result may be displayed on a display on which lyrics are displayed in the karaoke apparatus, or sound effects corresponding to the scoring result may be reproduced separately.

  According to the present invention, it is possible to score only singing places, such as rust and poor parts, or to sing songs in the middle of karaoke. In particular, since scoring is performed using the magnitude of the voice signal of the voice input to the input receiving unit such as a microphone as a trigger, scoring close to a human sense is possible.

  In the karaoke apparatus of the present invention, the storage unit stores the accompaniment data and the scoring data corresponding to the accompaniment data in the order of reproduction of the accompaniment data. Each time the is reproduced, scoring data corresponding to this is acquired, and when the comparison is performed, the audio signal and the last acquired scoring data can be compared. .

As described above, the accompaniment data is MIDI data and the scoring data is included in one channel, or the accompaniment data is PCM data and the scoring data is arranged in the MIDI format in order of time. When the accompaniment data is scanned in the playback unit, the scoring unit scans the scoring data accordingly, and if there is voice input in the scale, the scoring to be used for the voice input Get the data. The scoring data may be stored in a buffer, for example. Then, the scoring is performed using the scoring data.
The present invention relates to a preferred embodiment of the invention described above, wherein accompaniment data and scoring data are arranged in the order of reproduction to facilitate reproduction and acquisition, and corresponding scoring data is acquired each time reproduction is performed. Thus, the scoring process can be speeded up.

  Further, in the karaoke apparatus of the present invention, the scoring unit displays the voice signal and the last acquired scoring data for a predetermined time while the magnitude of the voice signal is equal to or higher than the scoring execution level. It can be configured to compare at intervals (hereinafter referred to as “scoring intervals”).

That is, the comparison is not performed at a timing set in advance by the provider of karaoke data, but is performed at a predetermined interval while scoring is performed.
This makes it possible to score the time when the singer is actually speaking, and can score more closely to the human interval.

In the karaoke apparatus according to the present invention, the scoring unit performs scoring according to the difference between the fundamental frequency and / or intensity of the audio signal and the fundamental frequency and / or intensity specified in the scoring data. It can be constituted as follows.
The present invention relates to a preferred embodiment of the above invention, and performs scoring according to the difference between the fundamental frequency and intensity of voice input (voice volume and level) and the fundamental frequency and intensity of scoring data. It is. That is, if the difference is large, the scoring result is poor, and if the difference is small, the scoring result is good. This makes it possible to score basic singing abilities such as the pitch and the loudness of the part where the singer is actually speaking.

In the karaoke apparatus of the present invention, the scoring unit can be configured to stop scoring when the difference is equal to or greater than a predetermined threshold (hereinafter referred to as “scoring stop difference”).
The difference between the fundamental frequency and the intensity is larger than the predetermined threshold value, which means that the voice signal of singing by the singer is not input but various noises such as environmental sounds are input. Is done. Such noise may be uttered when a microphone is handed over during singing. In the present invention, when an audio signal that is assumed to be such noise is input, it is not reflected in the scoring result, and scoring closer to human sense can be performed.

The karaoke method according to another aspect of the present invention includes a reproduction process, an input reception process, a scoring process, and an output process, and is configured as follows.
That is, in the reproduction step, accompaniment data stored in advance in association with scoring data is reproduced.

On the other hand, in the input receiving step, an input of a voice signal is received.
Further, in the scoring process, when the size of the audio signal that can be accepted is equal to or greater than a predetermined threshold (hereinafter referred to as “scoring execution level”), it is stored in advance in association with the currently reproduced accompaniment data. The scoring data and the audio signal are compared and scored.
In the output step, the scored result is output.
A program according to another aspect of the present invention is configured to cause a computer to function as each unit of the karaoke device or to cause the computer to execute each step of the karaoke method.

  The program of the present invention can be recorded on a computer-readable information recording medium such as a compact disk, flexible disk, hard disk, magneto-optical disk, digital video disk, magnetic tape, and semiconductor memory. The above program can be distributed and sold via a computer communication network independently of the computer on which the program is executed. The information recording medium can be distributed and sold independently from the computer.

  ADVANTAGE OF THE INVENTION According to this invention, the karaoke apparatus suitable for scoring a singer's song appropriately, the karaoke method, and the program which implement | achieves these with a computer can be provided.

  Embodiments of the present invention will be described below. In the following, for ease of understanding, an embodiment in which the present invention is applied to a game device will be described. However, the present invention can be similarly applied to information processing devices such as various computers, PDAs, and mobile phones. it can. That is, the embodiment described below is for explanation, and does not limit the scope of the present invention. Therefore, those skilled in the art can employ embodiments in which each or all of these elements are replaced with equivalent ones, and these embodiments are also included in the scope of the present invention.

  FIG. 1 is a schematic diagram showing a schematic configuration of a typical game device in which a karaoke device according to one embodiment of the present invention is realized. Hereinafter, a description will be given with reference to FIG.

  The game apparatus 100 includes a CPU (Central Processing Unit) 101, a ROM (Read Only Memory) 102, a RAM (Random Access Memory) 103, an interface 104, a controller 105, an external memory 106, an image processing unit 107, and the like. A DVD (Digital Versatile Disk) -ROM drive 108 and a NIC (Network Interface Card) 109.

  A DVD-ROM storing a game program and data is loaded into the DVD-ROM drive 108 and the game apparatus 100 is turned on to execute the program, thereby realizing the karaoke apparatus of the present embodiment. .

  The CPU 101 controls the overall operation of the game apparatus 100 and is connected to each component to exchange control signals and data.

  The ROM 102 records an IPL (Initial Program Loader) that is executed immediately after the power is turned on, and when this is executed, the program recorded on the DVD-ROM is read out to the RAM 103 and execution by the CPU 101 is started. The The ROM 102 stores an operating system program and various data necessary for operation control of the entire game apparatus 100.

  The RAM 103 is for temporarily storing data and programs, and holds programs and data read from the DVD-ROM and other data necessary for game progress and chat communication.

  The controller 105 connected via the interface 104 receives an operation input performed by the user when executing a game such as karaoke.

  The external memory 106 detachably connected via the interface 104 stores data indicating the karaoke scoring status, data indicating the progress of the game, chat communication log (record) data, and the like in a rewritable manner. . The user can record these data in the external memory 106 as appropriate by inputting an instruction via the controller 105.

  A DVD-ROM mounted on the DVD-ROM drive 108 stores a program for realizing the game and image data and audio data associated with the game. Under the control of the CPU 101, the DVD-ROM drive 108 performs a reading process on the DVD-ROM loaded therein, reads out necessary programs and data, and these are temporarily stored in the RAM 103 or the like.

  The image processing unit 107 processes the data read from the DVD-ROM by an image arithmetic processor (not shown) included in the CPU 101 or the image processing unit 107, and then processes the processed data on a frame memory ( (Not shown). The image information recorded in the frame memory is converted into a video signal at a predetermined synchronization timing and output to a monitor (not shown) connected to the image processing unit 107. Thereby, various image displays are possible.

The image calculation processor can execute a two-dimensional image overlay calculation, a transmission calculation such as α blending, and various saturation calculations at high speed.
In addition, the polygon information arranged in the virtual three-dimensional space and added with various texture information is rendered by the Z buffer method, and a rendering image obtained by overlooking the polygon arranged in the virtual three-dimensional space from a predetermined viewpoint position is obtained. High speed execution of the obtained operation is also possible.

  Further, the CPU 101 and the image arithmetic processor operate in a coordinated manner, so that a character string can be drawn as a two-dimensional image in a frame memory or drawn on the surface of each polygon according to font information that defines the character shape. is there. The font information is recorded in the ROM 103, but it is also possible to use dedicated font information recorded in the DVD-ROM.

  The NIC 109 is for connecting the game apparatus 100 to a computer communication network (not shown) such as the Internet, and conforms to the 10BASE-T / 100BASE-T standard used when configuring a LAN (Local Area Network). Therefore, analog modems for connecting to the Internet using telephone lines, ISDN (Integrated Services Digital Network) modems, ADSL (Asymmetric Digital Subscriber Line) modems, cables for connecting to the Internet using cable television lines A modem or the like, and an interface (not shown) that mediates between them and the CPU 101 are configured.

  The audio processing unit 110 converts audio data read from the DVD-ROM into an analog audio signal and outputs the analog audio signal from a speaker (not shown) connected thereto. Further, under the control of the CPU 101, sound effects and music data to be generated during the progress of the game are generated, and sound corresponding to this is output from the speaker.

  When the audio data recorded on the DVD-ROM is MIDI data, the audio processing unit 110 refers to the sound source data included in the audio data and converts the MIDI data into PCM data. If the compressed audio data is in ADPCM format or Ogg Vorbis format, it is expanded and converted to PCM data. The PCM data can be output by performing D / A (Digital / Analog) conversion at a timing corresponding to the sampling frequency and outputting it to a speaker.

  Furthermore, a microphone 111 can be connected to the game apparatus 100 via the interface 104. In this case, the analog signal from the microphone 111 is subjected to A / D conversion at an appropriate sampling frequency so that processing such as mixing in the sound processing unit 110 can be performed as a PCM format digital signal.

  When the game apparatus 100 is used as a karaoke apparatus, audio data read from a DVD-ROM or audio data acquired from a computer communication network via the NIC 109 is used as accompaniment data, and audio data input from a microphone is used. The audio processing unit 110 mixes accompaniment data and singing data as singing data, and outputs them from the speaker. Moreover, it is possible to output sound using headphones (not shown) or earphones (not shown) instead of the speakers.

  In addition, the game apparatus 100 uses a large-capacity external storage device such as a hard disk so as to perform the same functions as the ROM 102, the RAM 103, the external memory 106, the DVD-ROM attached to the DVD-ROM drive 108, and the like. It may be configured.

(Composition of karaoke equipment)
FIG. 2 is an explanatory diagram showing a schematic configuration of a karaoke apparatus realized on the game apparatus 100 or the like. FIG. 3 is a flowchart showing a flow of control of processing of the karaoke method executed by the karaoke apparatus. Hereinafter, a description will be given with reference to FIG.

  The karaoke apparatus 201 according to the present embodiment includes a storage unit 202, a reproduction unit 203, an input reception unit 204, a scoring unit 205, and an output unit 206, and is configured as follows.

  That is, the storage unit 202 stores the accompaniment data and the scoring data in advance in association with each other. As the accompaniment data, various data formats such as PCM data and MIDI data can be adopted. However, these data formats store accompaniment data as a data string and disclose the reproduction of accompaniment data. The data fragments contained in are processed in time order. Therefore, scoring data is stored in association with the data fragment.

  As scoring data, for example, a fundamental frequency or intensity (volume, input level) can be adopted. If the accompaniment data is MIDI data, one channel of MIDI data is assigned to the scoring data, the channel does not output audio as scoring data, and other channels play MIDI as accompaniment data. Conceivable.

  FIG. 4 is an explanatory diagram showing a schematic configuration of accompaniment data and scoring data.

  In FIG. 4 (a), as described above, scoring data is combined with accompaniment data as one channel of MIDI data, and accompaniment playback and singing scoring data are obtained from one MIDI file as a whole. A state when performing the above is shown.

  The MIDI data 401 is represented by a plurality of channels 402, and for each channel 402, the time to be played and the type of sound to be played are designated. Each channel 402 is associated with various sound sources. For example, data from one channel 402 may be used to play a piano sound, data from another channel 402 may be a guitar sound, data from another channel 402 may be a bass sound, and other channels 402 may also be used. The data is used to reproduce the drum sound.

  Then, each MIDI data of the channel 402 of the singing scoring data includes data such as pitch (pitch), sound volume, and sound length. Therefore, if an appropriate sound source is assigned to this and MIDI playback is performed together with other channels, the melody to be sung by the singer is played back.

  FIG. 4B shows other data formats. In the data structure shown in the figure, voice waveform data 411 such as PCM data and Ogg Vorbis data is used as accompaniment data, and the voice waveform data 411 is divided into predetermined time lengths.

  And between the fragmented speech waveform data 411, scoring data 412 corresponding to the speech waveform data 411 preceding this is recorded. The scoring data 412 includes data such as pitch (pitch), sound volume, and sound length.

  Therefore, when reproduction of a certain voice waveform data 411 is started, scoring data 412 (arranged immediately after the voice waveform data 411) corresponding to the voice waveform data 411 is acquired and scored accordingly. Become.

  Now, in order to sequentially reproduce the accompaniment data stored in advance, the reproducing unit 203 acquires a piece of accompaniment data to be reproduced from the accompaniment data (step S301), and starts reproducing the fragment (step S301). S302).

  Note that the accompaniment data fragment has a predetermined time length, and it takes a predetermined time to reproduce it. However, when an instruction to start reproducing the fragment is given to the audio processing unit 110 in step S302, The control returns to the CPU 101. Therefore, the subsequent processing is performed in parallel with the fragment reproduction. Details of processing in the voice processing unit 110 will be described later.

  Furthermore, the input receiving unit 204 receives an input of an audio signal from the microphone 111 (step S303), and performs necessary A / D conversion and the like.

  Then, the scoring unit 205 compares the magnitude of the audio signal that can be accepted with a predetermined threshold (hereinafter referred to as “scoring execution level”) (step S304), and the former is greater than or equal to the latter (step S304; Yes). ), Scoring data stored in association with the currently reproduced accompaniment data is acquired (step S305), and this is compared with the audio signal and scored (step S306).

  The details of the processing of the audio processing unit 110 for “acquiring scoring data stored in association with the currently played accompaniment data” will be described later. The data is also scanned, and at that time, the pitch and tone data to be sung by the singer are stored and updated in a predetermined area. Therefore, in step S305, it is only necessary to read the value stored in the area.

  As a scoring method, the difference between the fundamental frequency and / or intensity of the audio signal and the fundamental frequency and / or intensity specified in the scoring data is obtained, and if this difference is large, the scoring result is obtained. Various well-known techniques can be used, such as improving the scoring result if it is worse and smaller.

  Further, the output unit 206 outputs the scored result (step S307). The scoring result may be displayed on a display on which lyrics are displayed in the karaoke apparatus, or sound effects corresponding to the scoring result may be reproduced separately.

  If the size of the audio signal is not equal to or higher than the scoring execution level (step S304; No), the processing of step S305 to step S307 is not executed, and the process directly proceeds to step S308.

  Then, when the processing status of the audio processing unit 110 is checked and the unreproduced data amount of the expanded PCM data is smaller than a certain amount, the next accompaniment data needs to be expanded (step S308; Yes). Return to step S301. On the other hand, when that is not right (step S308; No), it waits for a fixed time (step S309) and returns to step S303. For example, when waiting for the next interruption of the vertical synchronization signal to occur or when the audio processing unit 110 performs transfer to write data of a certain size in a FIFO (First In First Out) buffer that outputs audio to a speaker or the like Various times can be adopted as the waiting time, such as waiting until the transfer completion interrupt occurs. Further, while waiting, other processing may be executed in a coroutine manner.

  Therefore, in the present embodiment, the scoring data is provided at a predetermined interval (typically a constant time interval, although not necessarily a constant interval) while a sound having a certain volume or more is being input from the microphone 111. And the audio signal are compared, and scoring is performed. That is, the comparison is not performed at a timing set in advance by the provider of karaoke data.

Therefore, according to the present embodiment, it is possible to score only a place where the user wants to sing, such as a rust or a weak part, or to score a song in the middle of karaoke. In particular, since the scoring is performed using the magnitude of the voice signal of the voice input to the input receiving unit 204 such as a microphone as a trigger, scoring close to a human sense is possible. In addition, this makes it possible to score the time when the singer is actually speaking, and can score more like a human sense .

  In the above-described embodiment, the size of the audio signal and the scoring execution level are compared, and it is determined whether or not to perform scoring only based on the magnitude, but after comparing the audio signal and the scoring data, It may be further judged whether or not to adopt as a scoring material.

  That is, when the difference between the acquired scoring data and the audio signal is greater than or equal to a predetermined threshold (scoring cancellation difference) between step S305 and step S306 of the above embodiment, the process immediately proceeds to step S308. Otherwise, the process proceeds to step S306 in order to score.

  The difference between the fundamental frequency and the intensity is larger than the predetermined threshold value, which means that the voice signal of singing by the singer is not input but various noises such as environmental sounds are input. Is done. Such noise may be uttered when a microphone is handed over during singing. In the present invention, when an audio signal that is assumed to be such noise is input, it is not reflected in the scoring result, and scoring closer to human sense can be performed.

(Processing of the voice processing unit)
FIG. 5 is a flowchart showing a flow of processing performed in parallel with the processing shown in FIG. 3 when the audio processing unit 110 receives an instruction to start playback of the accompaniment data fragment from the CPU 101 in step S301. It is. Hereinafter, a description will be given with reference to FIG.

  First, the audio processing unit 110 sequentially acquires accompaniment data from the head of the designated accompaniment data fragment (step S501), generates audio waveform data according to the accompaniment data (step S502), and generates an audio output FIFO. After waiting until the amount of data contained in the buffer becomes a predetermined amount or less (step S503), the data is written in the FIFO buffer (step S504).

  Further, scoring data corresponding to the accompaniment data is acquired (step S505), and this is written into the latest scoring data buffer prepared in the RAM 103 (step S506).

  Then, it is checked whether or not all accompaniment data fragments have been processed (step S507). If the processing has not been completed (step S507; No), the process returns to step S501, and if all processing has been completed (step S507; Yes), End the process.

  In this way, the latest scoring data buffer records the scoring data to be compared with the voice signal input at that time, so in step S305, the pitch (from the latest scoring data buffer) It is only necessary to read the numerical value of the pitch and the sound intensity (size, level).

  As described above, according to the present invention, according to the present invention, it is possible to provide a karaoke device, a karaoke method, and a program for realizing these by a computer, which are suitable for appropriately scoring a singer's song. In addition to the karaoke device 201 used for a dedicated facility such as a karaoke box, the present invention can also be applied to a karaoke device 201 realized on a general-purpose game device or a general-purpose computer.

It is a mimetic diagram showing an outline composition of a typical game device by which a karaoke device concerning an embodiment of the present invention is realized. It is explanatory drawing which shows schematic structure of the karaoke apparatus of this embodiment. It is a flowchart which shows the flow of control of the karaoke method performed with the karaoke apparatus of this embodiment. It is explanatory drawing which shows the mode of the accompaniment data used by the karaoke apparatus of this embodiment, and the data for scoring. It is a flowchart which shows the flow of control of the process performed in the audio | voice processing part of the karaoke apparatus of this embodiment.

Explanation of symbols

100 game machine 101 CPU
102 ROM
103 RAM
104 Interface 105 Controller 106 External Memory 107 Image Processing Unit 108 DVD-ROM Drive 109 NIC
DESCRIPTION OF SYMBOLS 110 Voice processing part 111 Microphone 201 Karaoke apparatus 202 Storage part 203 Playback part 204 Input reception part 205 Grading part 206 Output part 401 MIDI data 402 Channel 411 Voice waveform data 412 Scoring data

Claims (5)

A storage unit that stores the accompaniment data and the scoring data in association with each other,
A playback unit for playing back the previously stored accompaniment data;
An input receiving unit that receives an input of an audio signal;
While the size of the audio signal that can accept the input is equal to or greater than a predetermined threshold (hereinafter referred to as “scoring execution level”) , the basic frequency and / or intensity of the audio signal and the scoring data are specified. The difference between the fundamental frequency and / or the intensity is obtained, and while the obtained difference is less than a predetermined threshold (hereinafter referred to as “scoring cancellation difference”), the larger the difference is, the more the audio signal is scored. The result is worse, the audio signal is scored so that the smaller the difference is, the better the audio signal is scored, and the size of the audio signal is below the scoring execution level, or While the calculated difference is equal to or greater than the scoring cancellation difference, a scoring unit that does not score the audio signal , and
A karaoke apparatus comprising: an output unit that outputs the scored result. The karaoke apparatus according to claim 1,
The storage unit alternately stores the piece of accompaniment data and the piece of scoring data corresponding to the piece of accompaniment data in the order of reproduction of the piece of accompaniment data,
Each time the reproducing unit reproduces the piece of accompaniment data, it writes a piece of scoring data corresponding to the piece of accompaniment data to a predetermined data buffer,
The scoring unit calculates the difference or, when performing the scoring, compares the audio signal with the piece of scoring data last written in the predetermined data buffer to determine the difference. Or, perform the scoring,
The output unit outputs a scored result each time the score is given. The karaoke apparatus according to claim 2,
The scoring unit, when performing the comparison, compares at a predetermined time interval (hereinafter referred to as “scoring interval”). A reproduction step of reproducing accompaniment data stored in advance in association with scoring data;
An input receiving step for receiving an input of an audio signal;
When the size of the audio signal that can accept the input is equal to or greater than a predetermined threshold (hereinafter referred to as “scoring execution level”) , the basic frequency and / or intensity of the audio signal and the scoring data are specified. The difference between the fundamental frequency and / or the intensity is obtained, and if the obtained difference is less than a predetermined threshold (hereinafter referred to as “scoring cancellation difference”), the greater the difference, the higher the scoring of the audio signal. The result is worse, the audio signal is scored so that the smaller the difference is, the better the audio signal is scored, and the size of the audio signal is below the scoring execution level, or While the determined difference is equal to or greater than the scoring stop difference, a scoring process that does not score the audio signal ;
An output step for outputting the scored result;
A karaoke method comprising: Computer
A storage unit that stores the accompaniment data and the scoring data in association with each other,
A playback unit for playing back the previously stored accompaniment data;
An input receiving unit that receives an input of an audio signal;
When the size of the audio signal that can accept the input is equal to or greater than a predetermined threshold (hereinafter referred to as “scoring execution level”) , the basic frequency and / or intensity of the audio signal and the scoring data are specified. The difference between the fundamental frequency and / or the intensity is obtained, and if the obtained difference is less than a predetermined threshold (hereinafter referred to as “scoring cancellation difference”), the greater the difference, the higher the scoring of the audio signal. The result is worse, the audio signal is scored so that the smaller the difference is, the better the audio signal is scored, and the size of the audio signal is below the scoring execution level, or While the calculated difference is equal to or greater than the scoring cancellation difference, a scoring unit that does not score the audio signal , and
A program that functions as an output unit that outputs the scored result.

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