Abstract: In a karaoke system, a central terminal and a plurality of karaoke terminals are connected by a coaxial cable. A polling modem modulates a polling signal to a predetermined channel signal and transmits it to a karaoke terminal and also receives a response signal (signal for responding as to whether a song has been requested) transmitted from the karaoke terminal in response to the polling signal. When a song is requested, the data transmission control portion retrieves the karaoke song data of the requested song from the memory, modulates it via the data transmission modem into an alternating current signal that differs from the channel of the polling signal, and transmits it to the karaoke terminal.

Abstract: A Karaoke system scoring method and system (10) is provided based on detecting, for example, frame energy (19 or 19') of the Karaoke singer and the frame energy of the original artist (29 or 29'). The frame energy is quantized (41 and 43) and compared (45) and based on the comparison a score (37) is generated and displayed (15).

Abstract: A harmony chorus apparatus collects an original of a vocal sound performed after a main melody pattern of a song, and adds a chorus sound derived after a chorus melody pattern of the same song to the vocal sound. A memory stores a main melody data representative of the main melody pattern and a chorus melody data representative of the chorus melody pattern which is designed in harmony with the main melody pattern. A pitch difference calculator sequentially retrieves the main melody data and the chorus memory data from the memory in synchronization with progression of the song, and calculates a pitch difference between the main melody pattern and the chorus memory pattern according to the retrieved main melody data and chorus melody data. A chorus generator shifts a pitch of the collected vocal sound by the calculated pitch difference to generate the chorus sound in the form of a variation of the vocal sound.

Abstract: A performance evaluation method for use in a karaoke apparatus evaluates a singing performance of a karaoke singer by measuring differences between the karaoke singer's vocal rendition and an accompanying music produced by an audiovisual device. Digitized voice signals and their corresponding digitized accompaniment signals are produced by sampling simultaneously the karaoke singer's vocal rendition and the accompanying music, respectively. Then, a difference between a digitized voice signal and its corresponding digitized accompaniment signal and a trend of differences are calculated and used to generate a performance score.

Abstract: A Karaoke apparatus responds to a request message for performing an entry song. The Karaoke apparatus has a music data storage for storing music data representative of a plurality of entry songs, and a reference data storage for storing reference data representative of a multiple of key items which specify the entry songs. A microphone is provided for collecting an oral request message and for converting the same into a corresponding voice signal. The voice signal is analyzed to extract therefrom key information which suggests a desired entry song. The reference data storage is searched to detect coincidence between the key information and at least one of the key items to thereby identify the desired entry song. The Karaoke apparatus retrieves music data of the desired entry song from the music data storage to perform the desired entry song according to the retrieved music data.

Abstract: A Karaoke apparatus, a host apparatus and a management apparatus are interconnected to each other through a communication line to constitute a centralized system. The host apparatus receives an entry code requesting a Karaoke service of a desired song from the Karaoke apparatus through the communication line for supplying a music data of the desired song. The management apparatus receives an order code requesting an additional service other than the Karaoke service from the Karaoke apparatus through the communication line for attending to the order code and returning a response message. The Karaoke apparatus is equipped with an input tool having a primary use for inputting the entry code and a secondary use for inputting the order code. A transmitter distributes the inputted entry code to the host apparatus and distributes the inputted order code to the management apparatus. A receiver receives the music data from the host apparatus and receives the response message from the management apparatus.

Abstract: A multimedia product for use for use in a multimedia computer to assist a student to learn to play a given musical work previously recorded on a master recording. A method of making the product is described which ensures that multimedia representations of the work are properly synchronized to the actual tempo variations, if any, in the master recording. A method of using the product for music training is also described.

Abstract: In a network karaoke system, a center station transmits song data, and a plurality of karaoke terminals communicate with the center station to receive therefrom the song data so that each karaoke terminal can provide a karaoke service based on the received song data. The center station has a first transmitter that broadcasts the song data to transmit the same simultaneously to all of the karaoke terminals, and a second transmitter that responds to a request from each karaoke terminal to individually transmit the song data to each karaoke terminal. Each karaoke terminal has a first receiver that is capable of receiving the song data broadcasted by the center station, a detector that detects when the first receiver has failed to receive the broadcasted song data for communicating with the center station to notify thereto the request for re-transmission of the song data, and a second receiver that receives the song data re-transmitted from the second transmitter of the center station in response to the request.

Abstract: A harmony adaptor is optionally usable as an attachment to a karaoke apparatus which has a pickup device for collecting a live singing sound and converting the same into a vocal signal, and a mixing device for mixing the vocal signal with a music signal representative of a karaoke music sound and for acoustically reproducing the live singing sound accompanied by the karaoke music sound according to the mixed ones of the vocal signal and the music signal. The harmony adaptor is detachably connectable to the pick-up device for receiving therefrom the vocal signal. The harmony adaptor generates a harmony signal which originates and separates from the received vocal signal and which represents a harmony chorus sound made consonant with the live singing sound.

Abstract: A song program and a motion picture background image suitable for the mood of the song program are recorded on a recording medium. A video-song accompaniment apparatus employs the recording medium to reproduce the song program and the motion picture background image. The recording medium has a lead-in area, a program area and a lead-out area.

Abstract: A karaoke device includes a song memory unit for storing digital audio data therein; a processing unit operable to retrieve the digital audio data from the song memory unit; an audio synthesizer unit for receiving the digital audio data and for generating a stereophonic digital audio output corresponding to the digital audio data; a digital-to-analog converting unit converting the digital audio output into an analog audio signal and adapted to be connected electrically to an external microphone unit so as to receive an external voice signal therefrom, the converting unit mixing the analog audio signal and the external voice signal and generating a mixed audio signal output; and an audio-visual signal transmitting unit including an image memory unit for storing predetermined digital video data and character data therein, control means for receiving lyrics data from the processing unit and the digital video data from the image memory unit, the control means being operable to convert the digital video data to an

Abstract: A video-song accompaniment apparatus displaying a lyrics signal sequence in accordance with an accompaniment signal sequence includes a controller responsive to lyrics display control information which is loaded on a channel message of a selected instrument of the accompaniment information. The lyrics display control information has a display flag for instructing output of the lyrics for a next measure by a lyrics signal generator, a color conversion flag permitting successive conversion of the characters of a lyrics signal sequence output by the lyrics signal generator from one color to another, and an erasure flag for instructing erasure of the previously-displayed lyrics output by the lyrics signal generator. Preferably, the display of the lyrics signal sequence is controlled according to the lyrics display control information read out of an accompaniment information memory by the controller during reproduction.

Abstract: A karaoke online system is composed of a karaoke station and a karaoke terminal telecommunicable with the karaoke station. The karaoke station has a database for storing a plurality of performance data files corresponding to a plurality of karaoke songs, each performance data file containing a sequence data which time-sequentially designates musical tones of the corresponding karaoke song. A selector responds to a request command transmitted from the karaoke terminal for selecting a performance data file of a karaoke song designated by the request command. A transmitter transmits the sequence data contained in the selected performance data file to the karaoke station in synchronization with a predetermined tempo of the designated karaoke song. On the other hand, the karaoke terminal transmits the request command to the karaoke station upon a request of the designated karaoke song to be performed.

Abstract: In a karaoke apparatus responsive to a request for producing a karaoke accompaniment according to performance data, a sound source of a physical model type is controlled according to shape data which characterizes an acoustic vibration of a model musical instrument for electrically simulating the acoustic vibration to synthesize a tone waveform as if created by the model musical instrument, and is driven according to performance data for sequentially processing the tone waveform to produce the karaoke accompaniment. A distributor is settable with the shape data for feeding the sound source with the set physical data. A memory stores a plurality of items of performance data and a plurality of types of shape data in correspondence with each other.

Abstract: A method and apparatus for simplifying the steps needed to produce a graphical cue to words being displayed as they are to be sung by a performer such as in Karaoke. The production of a CD-Graphics (CD-G) product containing compact disc ("CD") audio accompanied with a visual presentation of the lyrics is facilitated. In the end CD-G product, the lyrics are displayed on a CRT as white letters against a chroma keyed background (usually blue). An operator is able to precisely control the appearance of the lyrics of the display and the filling of the displayed lyrics in time with the music. The color of the fill can be specified e.g., to distinguish male solo or female solo or combination. The operator may also create display titles and other stylized graphical images for display during interludes where there is music and no lyrics. The operator may also specify the way in which graphical elements are put on the screen e.g., painted from left to right, right to left, spiral out from the center, etc.

Abstract: A karaoke device for playing music stored on replaceable solid state memory cartridges with a console having controls for enabling the user to select the musical pieces to be played. The device features an LCD screen for displaying the title and lyrics of the song wherein the words are highlighted as the music is played. The device is connectable to a microphone so that the users voice may be mixed in with the music. A console of the device has controls for allowing the user to select the title of the selected song. A keyboard is provided on a console enabling the user to modify characteristics such as pitch and tempo of the song.

Abstract: A Karaoke (10) apparatus with autokeying is provided by measuring the average pitch (28) of the singer or user over a predetermined time period, comparing (29) the pitch of the singer or user voice to that of a reference pitch to provide a signal representing mismatch and changing the pitch (31) of the background music to match that of the singer or user.

Abstract: A compact disk player incorporated television receiver includes a television signal receiver, a compact disk player having a song accompaniment function, a video signal processor for selectively receiving and processing a video signal output by the television signal receiver or a video signal output by the compact disk player and displaying the processed signal on a monitor. The device also contains an audio signal processor and a power source for generating voltage signals to supply power to the television signal receiver, the monitor, and the compact disk player. Also, a television controller is provided for controlling the supply of the voltage signals by the power source depending on whether the device is operating in a television mode or compact disk mode. The device operates in a television mode or a compact disk mode based on control signals input via an instruction input unit. Accordingly, when an audio compact disk is being played by the compact disk player (i.e.

Abstract: A recording medium records multilingually written lyrics data along with accompaniment data corresponding thereto, and a video-song accompaniment apparatus adopts the recording medium. The lyrics data is written in each language by having a font look-up table made up of lyrics encoded by an index code and character image data corresponding to the index code. The recording medium can be used commonly in various countries and in countries where multiple languages are spoken, by providing multilingually written lyrics data for one song program.

Abstract: A karaoke apparatus sounds a karaoke accompaniment and displays visual information to perform karaoke play. An audio generator responds to a request for generating an audio signal. A sound component is switchable from an inactive state to an active state for receiving the audio signal to sound a karaoke accompaniment corresponding to the request. A video generator having a plurality of channels generates a plurality of video signals which represent visual information containing various items assigned differently to the representative channels. A channel selector switches the channels to select an adequate video signal so as to control the visual information. A monitor receives the selected video signal for displaying the visual information such that the displayed visual information includes a necessary item and excludes an unnecessary item for the karaoke play at least under the active state of the sound component.

Abstract: In a karaoke apparatus, a memory device stores song data containing at least accompaniment information representative of a karaoke accompaniment of a desired song and vocal information representative of a model singing voice of the song performed by a model singer. A producing device processes the stored accompaniment information to produce the karaoke accompaniment. An input device collects an actual singing voice performed in parallel to the karaoke accompaniment by a karaoke player. A reading device reads out the vocal information from the memory device in parallel to the karaoke accompaniment. A modifying device modifies at least a volume and a pitch of the model singing voice represented by the read vocal information according to an actual volume and an actual pitch of the collected actual singing voice. An output device sounds the modified model singing voice in place of the collected actual singing voice and in parallel to the karaoke accompaniment.

Abstract: An interactive network provides music to subscribers. A "more like" function allows a subscriber to use a seed song to identify other songs that are similar to the seed song, and to add the new songs to the current playlist. The similarity between songs is based on the subjective content of the songs, as reflected in style tables prepared by editors. The subscriber may control the closeness of the match by adjusting a style slider provided by the user interface. A style equalizer employs eight faders that indicate the predominant styles of the songs in the playlist. A subscriber may use the style equalizer to see what types of songs are included in the playlist, and to adjust the mix of songs that are played from the playlist.

Abstract: An interactive system is provided for playing a game, educational or instructional sequence in conjunction with a prerecorded multimedia presentation consisting of at least motion video, sound and accompanying text. The multimedia presentation is partitioned into time segments. The game sequence is also partitioned into task units that are synchronized with the time segments. The time address markers for the beginning and ending of each of the time segments initialize, execute and close each task unit of a programmed game sequence. A corresponding authoring system allows an author to design and implement the time-segmentation of the multimedia presentation and its functional interface with the game sequence. This system can be used for motivating instructional games based on music video, movies, animated cartoons and karaoke that provide the player with the same excitement and challenge of the popular video games.

Abstract: A compact image karaoke device with only a small number of image disks which provides the impression of having a great many background images. Two players are provided for reading background images from image disks. Background images are selected from at least one image unit group corresponding to at least one image genre corresponding to selected song genre and are read by the two players and changed at random, for example, every 30 seconds. By editing the display of background images in this manner, a great number of background image series can be obtained for combinations of the background images. Images obtained and displayed corresponding particularly to the starting portion of the song are provided only on the number of images available. Therefore, even if a great number of songs are consecutively selected, a user will not feel as though the same images are being repeatedly shown.

Abstract: A Karaoke apparatus in which after one Karaoke play was finished, a show-up effect according to the next Karaoke playing music piece is obtained for a period of time until the start of the next Karaoke play. Control information of a plurality of music pieces is previously reproduced by the reproducing means from the recorded information on a recording medium and is stored in memory. When one of the plurality of music pieces is selected by an operation, the control information corresponding to the selected music piece is read out from the memory and is supplied to the external apparatus to thereby start the operation. After that, the recording medium is played with regard to the selected music piece, thereby starting the reproduction of the Karaoke playing sound.

Abstract: An audio visual karaoke system using a karaoke audio cassette to which high frequency signals have been added containing specific data information. In the audio player, these high frequency signals are separated from the audio signals by a high pass filter ("HPF"). Using a data converter, the high frequency signals are converted into data information. Subsequently, this data information is processed by a microprocessor and a display controller to generate lyrics or other information, which are displayed on a display device.

Abstract: A portable apparatus is used to transmit wirelessly both musical accompaniment information, which includes music data of a plurality of music pieces and which is stored in an integrated circuit card, and a voice input from a user for reception and reproduction by an external speaker unit. The portable apparatus includes an elongated casing having a first end portion that is adapted to be gripped by one hand of the user and that confines a receiving space for receiving removably the integrated circuit card therein, and a microphone unit mounted on a second end portion of the casing for transforming the voice input from the user to a first electrical signal. A processor unit is disposed in the casing and is connectable electrically to the integrated circuit card. The processor unit is controlled by a keyboard, which is mounted on an intermediate portion of the casing, so as to transform the music data of a selected one of the music pieces into MIDI information.

Abstract: When images of the image genre most suitable for the selected song are being reproduced (Yes in S14), the karaoke terminal picks up those image data from a channel over which they are transmitted. If images of that image genre are not being reproduced (No in S14), when the number of players presently playing is less than four (No in S19), a player that is not presently playing starts playing a video disk to reproduce images of that image genre in S20. When the number of players presently playing is equal to or greater than four, according to the image genre D and/or H reproducing status, a player that is not presently playing starts playing a video disk to reproduce images of image genre D or H that includes or is common to the most suitable image genre.

Abstract: In a karaoke apparatus for playing a karaoke song designated by a request, a first storage rewriteably stores a plurality of song data files corresponding to a plurality of karaoke songs to form an extendible library which can be updated. Further, a second storage permanently stores another plurality of song data files corresponding to another plurality of karaoke songs to form a fixed library which cannot be update. A directory table recodes a classification of each song data file classified to one of the extendible library and the fixed library. A storage selector responds to a request for addressing the director table to check a classification of a requested song data file, and for retrieving the same selectively from one of the extendible library and the fixed library according to the classification. A tone generator processes the retrieved song data file to sound a desired karaoke song designated by the request.

Abstract: A melody controlling apparatus is provided with: a reproducing device for reproducing first digital sound source controlling information and melody controlling information related to the first digital sound source controlling information; a memory for storing melody changing information; a melody changing device for reading the melody changing information from the memory according to the melody controlling information reproduced by the reproducing device, and changing the first digital sound source controlling information on the basis of the melody changing information to generate second digital sound source controlling information; and a digital sound source for generating music information signal from the second digital sound source controlling information.

Abstract: A method of displaying a title and lyrics of the first measure of a reserved song before the end of a currently performed song includes steps for calculating remaining time by comparing total performance time with an elapsed time of a currently performed song, obtaining a title and lyrics information for the first measure of the reserved song responsive to a reserved song number when the remaining time is less than a predetermined value, and displaying the title and the lyrics information superimposed on a background image associated with the currently performed song. The method for displaying title and lyrics information using a video-song accompaniment apparatus enhances user convenience by displaying the title and associated lyrics for the first measure of a reserved song for verification before a currently performed song ends. A video-song accompaniment apparatus capable of performing this method is also described.

Abstract: A recording method and system that provides optional and controllable song lyric acoustical promptings and music for Karaoke participants which is also capable of providing phonetic instruction for formative bilingual skill development. The acoustical prompts are in the form of short spoken phrases, acoustically provided just prior to the time at which the actual vocal should be sung. The method of acoustical prompting employs a listen--sing-along procedure effected via the interaction of the spoken instructor-promptings and the Karaoke participant. The acoustical system includes preparing a multi-track recording in proper time sequence to provide a precedent acoustical prompt. For example, the recording could have stereo music on two tracks, an original vocal on a third track in synchronism with the music, and on a fourth track rapidly spoken prompt messages preceding respective portions (vocal lines) of the original vocal.

Abstract: In a karaoke system capable of scoring a singing of singer on an accompaniment thereof, when a voice signal of the singer is inputted, an energy detector generates a first basic frequency signal with respect to a voice signal section and inputs the first basic frequency signal to a comparator. And then, an audio signal in the voice signal section is inputted to the comparator as a second basic frequency signal. The comparator compares the first and second basic frequency signals with each other and calculates a difference value therebetween, and then inputs it to a microprocessor. The microprocessor outputs a signal for scoring the singing of the singer on the basis of the difference value.

Abstract: A karaoke apparatus operates in response to a song request for sounding an automatic accompaniment mixed with a singing voice to produce a karaoke performance involving an additional effect. The karaoke apparatus is supplied with a composite song data containing an accompaniment event data and an additional effect event data. A multimedia sequencer time-sequentially processes the supplied composite song data to synchronously feed a train of the accompaniment event data and another train of the additional effect event data in parallel manner with one another. A tone generator operates based on the fed accompaniment event data for generating an automatic accompaniment so as to produce a karaoke performance. An additional effect equipment is controlled by the fed additional effect event data for imparting an additional effect to the karaoke performance in matching with time-sequential progression thereof.

Abstract: A method of and computer system for training a student to play a musical work having an identifiable rhythm structure, the musical work being decomposable into a plurality of variations each maintaining the identifiable rhythm structure. According to the method, a musical score of each variation is generated and then the musical scores are arranged in order of rhythmic difficulty. An animated movie is then generated, the movie comprising the music score of at least one variation, a sound recording of the music score, a graphic device that highlights the identifiable rhythm structure and a representation of how the music score would be played on a musical instrument. The animated movie is then presented to the student.

Abstract: A vocal training apparatus accomplishes reproduction of a music signal recorded on an information medium, where the music signal includes a model vocal signal and an accompaniment signal. A model vocal signal is extracted from the music signal and a singer's vocal signal is received. The model vocal characteristics are measured from the model vocal signal and the singer's vocal characteristics are measured from the singer's vocal signal. The singer's vocal characteristics and the model vocal characteristics can then be compared to evaluate the singer's vocal characteristics relative to the model vocal characteristics.

Abstract: A karaoke apparatus is comprised of a data supply, a tone generator, an ADPCM decoder and a pitch shifter for sounding a requested karaoke song containing an instrumental accompaniment and a back chorus. The data supply supplies an ADPCM data representative of a phrase back chorus and being compressed by a variable compression condition, and supplies a song data containing accompaniment information prescriptive of an instrumental accompaniment, additional information prescriptive of a common back chorus and decoding information indicative of the variable compression condition of the ADPCM data, and further supplies key information which determines a pitch shift of the karaoke song. The tone generator processes the accompaniment information and the additional information to generate a first audio signal effective to sound synthesized tones of the instrumental accompaniment and the common back chorus.

Abstract: A Karaoke apparatus reproduces an automatic instrumental accompaniment of a selected song during the course of a physical vocal performance of the selected song by a singer. A memory registers a prescribed text data of a selected song, containing accompaniment information and word information composed of a sequence of characters. A musical sound synthesizer reproduces an automatic instrumental accompaniment according to the registered accompaniment information. A graphic generator modifies a graphic pattern of each registered character in association with a predetermined practical manner of the physical vocal performance. A display unit displays a sequence of the characters in the modified graphic patterns concurrently with the reproduction of the automatic instrumental accompaniment so as to visually teach the singer the practical manner during the physical vocal performance.

Abstract: A backing chorus reproducing device is disclosed wherein human backing chorus is PCM coded and then combined with MIDI Standard based instrumental sound to produce karaoke music. In reproduction, the instrumental sound and the chorus sound are played back with no out-of-synchronization therebetween. The backing chorus reproducing device comprises a communications controller, an input/output device for inputting an instruction for a music number and a change of scale, a memory for storing karaoke information received, a main controller for analyzing the karaoke information read from the memory to decompose it into header information, song's words information, and musical information, while outputting in synchronism the electronic musical sound data and the backing chorus data of the musical information according to the processing type of the control data included in the header information.

Abstract: A television receiver capable of performing a video accompaniment function includes a television signal generator for receiving a television signal and providing a video signal and an audio signal, a video accompaniment signal generator for reading background/lyrics information and accompaniment information of a program selected tom among a plurality of programs stored in a memory, providing a video signal for accompaniment and an accompaniment signal, and generating a pseudo-sync signal, a first selector for selectively providing the video signal supplied from the television signal generator and the pseudo-sync signal supplied from the video accompaniment signal generator, a second selector for selectively providing the audio signal supplied from the television signal generator and the accompaniment signal supplied from the video accompaniment signal generator, a video output unit for receiving a signal selected from the first selector and the accompaniment video signal as a video output, an audio output uni

Abstract: A karaoke system includes: reproduction unit for reproducing a MIDI sound source control information for karaoke song from a karaoke data recording medium, the MIDI sound source control information including playing time data of the karaoke songs; operation unit for inputting request of at least one desired karaoke song and karaoke playing time; calculation unit for obtaining playing time data of the requested karaoke songs and for calculating total playing time required for playing all of the requested karaoke songs; determination unit for comparing the total playing time with remaining playing time calculated on the basis of the karaoke playing time and for determining whether all of the requested songs can be played within the remaining playing time or not; and display unit for displaying a notice related to the result of the determination of the determination unit.

Abstract: An interactive communication system is proposed for communicating software of video games or karaoke music from a host facility or distributor to end users. The system includes a communication terminal device provided at the end user. The communication terminal device includes a computer and a device for performing interactive communication with the host facility. The communication terminal device also includes temporary storage device in which video game data or karaoke data received from the host facility is temporarily stored. The communication terminal device further includes outputting means for outputting the game data or karaoke data. Game data stored in the temporary storage device is automatically deleted after a predetermined time period.

Abstract: A karaoke apparatus includes: a karaoke information reproducing unit for reproducing MIDI sound source control information stored in a storage unit; a MIDI sound source control unit for producing first MIDI sound source control information and second MIDI sound source control information from the MIDI sound source control information reproduced by the karaoke information reproducing unit; a first MIDI sound source for producing first karaoke accompaniment information from the first MIDI sound source control information; a second MIDI sound source for producing second karaoke accompaniment information from the second MIDI sound source control information; and a mixing unit for mixing the first karaoke accompaniment information and second karaoke accompaniment information to output mixed karaoke accompaniment information.

Abstract: A karaoke apparatus for medley playback includes: playback unit for receiving playback information including MIDI sound source control information and producing acoustic sound of karaoke song on the basis of the playback information; information storage unit for storing playback information and identification information of a plurality of karaoke songs, the identification information specifying playback information of a highlight portion of each of the plurality of karaoke songs; selection instructing unit for instructing a selection of karaoke songs to be played; and playback control unit for reading out playback information of the highlight portions of the songs selected by the selection instructing unit from the information storage unit on the basis of the identification information of the each of the selected karaoke songs, and controlling the playback unit to successively play the selected karaoke songs on the basis of the playback information of the selected karaoke songs to produce a medley of the sele

Abstract: A music training apparatus performs a two-part reproduction including first and second parts, in which the first part is like a trial part which allows a video signal to be reproduced on a display unit but prohibits a sound signal to be generated from a speaker. The second part is like a formal part which allows an ordinary reproduction of both the video and sound signals. In the first part, a first pitch detector detects a pitch of a model singing signal memorized in a recording medium. Meanwhile, a second pitch detector detects a pitch of user's singing signal inputted from a microphone. If the pitches detected by the first and second pitch detectors are different from each other, an interval adjusting device changes the key so as to be in perfect pitch with each other before terminating the first part.

Abstract: A system for marking a singing voice and displaying a marked result for a karaoke machine. The system comprises a data storage means, a comparison and marking means, a display means, a control mean. The data storage means stores a standard singing voice data on a basis of which a singing voice of a singer inputted from a microphone is marked. The comparison and marking means compares the singing voice with the standard singing voice data and marks the singing voice. The display means displays a result of a score of the singing voice marked by the comparison and marking means, and has a course which is composed of a series of display units and a goal display. The control means controls the display means.