WO2005086166A1 - 楽曲同一性判別装置及び方法 - Google Patents
楽曲同一性判別装置及び方法 Download PDFInfo
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- WO2005086166A1 WO2005086166A1 PCT/JP2005/003538 JP2005003538W WO2005086166A1 WO 2005086166 A1 WO2005086166 A1 WO 2005086166A1 JP 2005003538 W JP2005003538 W JP 2005003538W WO 2005086166 A1 WO2005086166 A1 WO 2005086166A1
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- music
- music data
- identity
- data
- information
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
Definitions
- the present invention relates to a technical field such as a music identity determination device and method for determining the presence / absence of music data identity.
- Recording media such as CDs (Compact Discs) and MDs (Mini Discs) record TOC (Table Of Contents) information in addition to recording information including music data.
- the TOC information includes the absolute time of the start position and the end position of the last song on the recording medium for each song as is well known.
- Patent Document 1 discloses an apparatus capable of preventing double copying when recording (copying) music data recorded on a CD on an HD (Hard Disc).
- the TOC information corresponding to the music data recorded on each disk is compared. That was being done.
- the device determines that the music data recorded on the CD is the same as the music data recorded on the HD, and the music data reproduced on the CD is reproduced. It was controlled so as not to record in HD.
- CDDB for example, provided in a server on the Internet
- TOC information is associated with the titles of music pieces and the like
- a powerful CDDB is known. After the information such as the title of the music has been acquired, the discrimination of the music data is also performed based on the acquired title and the like.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2001-189048
- the TOC information is information on the absolute time of the start position of each song, the same TOC information may be obtained even with different song data. For this reason, there is a problem that the identity of the music data is not accurately determined. In particular, if the number of music data recorded on the CD is small, the tendency becomes remarkable.
- recording media there are recording media in which information such as TOC information and titles of music pieces cannot be used.
- recording media in which TOC information, titles of music pieces, and the like are not recorded exist.
- an object of the present invention is to provide a music identity determination apparatus and method capable of more accurately determining the identity of music data and the like, with one of the objects being to solve such a problem. .
- a music identity determination device that determines the presence / absence of identity of music data.
- Music feature quantity extraction means for extracting a first music feature quantity indicating the feature of the music data; first music feature quantity acquisition means for obtaining the extracted first music feature quantity; and a first music feature quantity recorded on a recording medium.
- a second music feature quantity acquisition unit for acquiring a second music feature quantity indicating a feature of the music data, and comparing the first music feature quantity with the second music feature quantity, and comparing the first music data with the second music feature quantity.
- Music identity determination means for determining the identity of the second music data.
- the music feature amount includes a key of the music.
- the song identity determination unit determines that the at least one of the key, beat, and chord quantities of the song match.
- the first music and the second music are determined to be identical.
- the music identity discrimination device associates the music recording means for recording the reproduced first music data on a recording medium, and associates the extracted first music feature amount with the first music data.
- Music feature amount storage means for storing music feature amounts.
- the music identity discrimination device includes a music recording means for recording the reproduced first music data on a recording medium, and a music identity determination means for determining whether the music identity exists. Is characterized by further comprising music identity information storage means for storing music identity information indicating that the first music data and the second music data have identity.
- the music identity discrimination device may determine whether music data having the same identity as the music data to be reproduced among the plurality of music data recorded on the recording medium is recorded on the recording medium.
- a music record discriminating means for discriminating whether the music is recorded on the basis of the music identity information.
- the music identity determination device when the music piece identification data is determined to be recorded on the recording medium by the music record determination means, the music piece identity data is identified. When the music data has already been reproduced, the music data to be reproduced is skipped.
- the music identity discrimination device presents to a user selectable information indicating a plurality of pieces of music data having the same identity based on the music identity information, and selects the music data by the user.
- music data erasing means for erasing music data corresponding to the information indicating the music data from the recording medium.
- the music identity determination device may further include a music recording unit that records the reproduced first music data on a recording medium, and a music identification unit that determines whether the music identity exists. Is characterized by further comprising music erasing means for erasing the recorded first music data on the recording medium.
- an information reproducing apparatus that reproduces information, comprising: a reproducing unit that reproduces first music data; and the music identity determination device.
- An information reproducing apparatus comprising:
- an information recording device for recording information is described.
- a recording device comprising the above-mentioned music identity determination device.
- a music identity determination method for determining the presence / absence of the identity of music data, wherein the method comprises the steps of: A step of extracting a first song feature amount indicating a feature of the data, a step of obtaining the extracted first song feature amount, and a second song feature indicating a feature of the second song data recorded on the recording medium. Obtaining the amount of music, and comparing the first music feature and the second music feature to determine whether the first music data and the second music data are identical. It is characterized by the following.
- a music identity determination processing program causes a computer that determines the presence or absence of the identity of music data to execute the computer from the reproduced first music data.
- Music feature amount extracting means for extracting a first music feature amount indicating the feature of the first music data
- first music feature amount obtaining means for obtaining the extracted first music feature amount
- a second music feature value acquiring means for acquiring a second music feature value indicating a feature of the music data, and comparing the first music feature value with the second music feature value, and comparing the first music data with the second music feature value
- It is characterized by functioning as music identity presence / absence determining means for determining presence / absence of identity with music data.
- the music identity discrimination processing program is a computer-readable recording medium.
- FIG. 1 is a diagram showing an example of a schematic block diagram of an information reproducing / recording apparatus according to the present embodiment.
- FIG. 2 is a flowchart showing a process of a system control unit 17 when music data is recorded.
- FIG. 3 is a flowchart showing a detailed example of a song identity determination process.
- FIG. 4 is a flowchart showing a process of a system control unit 17 when music data is reproduced.
- FIG. 5 is a flowchart showing a process of a system control unit 17 when music data is deleted.
- FIG. 6 is a conceptual diagram showing an example of a marking list.
- FIG. 7 is a diagram showing an example of the same song deletion list displayed on a display unit 16.
- FIG. 1 is a diagram showing a schematic block example of an information reproducing / recording apparatus according to the present embodiment.
- the information reproducing and recording apparatus 1 includes an information reproducing unit 11, an information output unit 12, a music feature extracting unit 13, an information recording and reproducing unit 14, an operation unit 15, a display unit 16, and a system.
- the control unit 17 is provided.
- the information reproducing unit 11 is controlled by a system control unit 17 under the control of a magnetic tape, a CD (Compact Disc:
- CD-DA Digital Audio
- CD-R Digital Audio
- CD-RZW CD-RZW
- MD Mini
- the information reproducing unit 11 when the information reproducing unit 11 is for reproducing music data recorded on a CD (for example, CD-DA), the information reproducing unit 11 includes an optical pickup (not shown) that irradiates the CD with a light beam, optically reads recorded information, photoelectrically converts the information into an electric signal, and outputs the signal, and an electric pickup output from the optical pickup.
- Signal power RF Radio
- RF radio frequency
- a servo circuit that servo-controls the spindle motor and the optical pickup, and reproduces and outputs the music data.
- the configuration and functions for reproducing music data other than the recording media other than the CD are well-known technologies, and thus detailed descriptions thereof will be omitted. Further, the music data may be reproduced from a plurality of recording media like a multimedia player.
- the information output unit 12 is configured to output music data reproduced and output by the information reproduction unit 11.
- the music feature amount extraction unit 13 is composed of, for example, a DSP or the like, and inputs music data reproduced and output by the information reproducing unit 11 as a music feature amount extraction means, and outputs the music data from the music data.
- a music feature quantity indicating a feature of the data is extracted and output to the information recording / reproducing unit 14 and the system control unit 17.
- the song feature amount is information that quantitatively indicates the feature of the song, and includes, for example, the performance time of the song, a tone feature amount obtained from the musical sound of the song, and the like.
- the musical sound feature quantity includes a key (tonality of a song such as C major and A minor), a key change position (or change pattern) as a quantity related to the key, and a chord (chord or chord string). And the change position (or change pattern) of the chord as a quantity related to the chord, the beat (beat: a fixed pulse signal having strength and weakness), and the change position (or change pattern) of the beat as a quantity related to the beat And the maximum (or minimum, average), volume, and The change position (or change pattern) of the volume as the amount is exemplified.
- the music feature amount extraction unit 13 converts the music data into a fast Fourier transform ( Fast
- the music feature amount extraction unit 13 may perform, for example, the tempo and rhythm of the music, the position and the number of the chorus part of the music, the key, beat, and chord of the chorus part. , And quantities associated therewith may be configured to be extracted by known methods.
- song features such as words that affect the character, impression, and atmosphere of the song appearing in the lyrics of the song (e.g., "heartwarming”, “sad”, “love”, “bright” ”,“ Encourage ”) t ⁇ ⁇ You may be configured to extract words.
- the information recording / reproducing unit 14 compresses, for example, music data reproduced and output by the information reproducing unit 11, and converts the data into HD, MD, CD-R / W, DVD-R / W or a recording medium such as a card-type recording medium, and also stores the music feature quantity extracted and output by the music feature quantity extraction unit 13 in association with the music data. Further, the information recording / reproducing unit 14 reproduces the music data recorded on the recording medium and outputs it to the information output unit 12 or reproduces the recorded music feature amount under the control of the system control unit 17. The data is output to the system control unit 17.
- the information recording / reproducing section 14 when the information recording / reproducing section 14 is for recording music data in HD, the information recording / reproducing section 14 is not shown, but is used as an encoder Z decoder for compressing or expanding the music data, and as a recording medium. It has an HD and an HD drive that records or plays back music data and music feature values in the HD, and performs recording of the music data, and reproduction and output of the music data. Note that the configuration and functions for reproducing and recording the music data and the like other than the recording media other than the HD are well-known technologies, and thus detailed descriptions thereof will be omitted.
- the operation unit 15 includes a plurality of operation buttons for receiving various instructions (for example, instructions for reproducing, recording, and erasing music data) from the user, and the operation buttons are pressed by the user.
- an instruction signal for example, a reproduction instruction signal, a recording instruction signal, an erasure instruction signal, etc.
- the system control unit 17 is output to the system control unit 17.
- the display unit 16 includes a display panel for displaying information related to music data. Under the control of the system control unit 17, the identification information, title, and playing time of the music data are recorded on a recording medium. The music list of the music data is displayed.
- the system control unit 17 includes a CPU having an arithmetic function, a working RAM, and various processing programs (including a music identity determination processing program: the music identity determination processing program includes, for example, a predetermined sano on the Internet).
- the data may be downloaded from a computer, or may be recorded on a recording medium such as a flexible disk (for example, CD-ROM) and read through a drive of the recording medium. It has a ROM to store.
- the system control unit 17 performs overall control of the entire information reproducing and recording apparatus 1, and simultaneously executes the first music feature amount of the present application.
- Acquisition means, second music feature quantity acquisition means, music identity determination means, music recording means, music feature quantity storage means, music identity information storage means, music recording determination means, music skip means, and music deletion means The music recording means, the music feature amount storage means, the music identity information storage means, and the music deletion means function in cooperation with the information recording / reproducing unit 14).
- the system control unit 17 controls the information reproduction unit 11 or the information recording / reproduction unit 14 to reproduce the music data in accordance with the reproduction instruction signal from the operation unit 15,
- the information recording / reproducing unit 14 is controlled as a music recording unit so that the music data is recorded in accordance with the recording instruction signal from the computer, and the music recorded on the recording medium is recorded in accordance with the erasure instruction signal from the operation unit 15.
- the information recording / reproducing unit 14 is controlled as a music erasing means so as to erase data and the like.
- the system control unit 17 causes the display unit 16 to display information regarding the music data in accordance with the display instruction signal from the operation unit 15, According to the selection instruction signal from the unit 15, the music data to be reproduced, recorded, or deleted is selected.
- the system control unit 17 uses the reproduced music data (hereinafter, music data reproduced by the information reproducing unit 11 as “first music
- the song feature amount extracting unit 13 acquires a song feature amount (hereinafter, referred to as a “first song feature amount” t ⁇ ⁇ ) indicating the feature of the song data “t ⁇ ⁇ ), and uses a recording medium as a second song feature amount acquiring unit.
- a music feature amount hereinafter, referred to as “second music data” in the following description, music data already recorded in the information recording / reproducing unit 14
- the “second music feature amount” is obtained from the information recording / reproducing unit 14 (for example, the HD power is also read and obtained).
- the system control unit 17 When the first music data reproduced from the information reproducing unit 11 is recorded in, for example, an HD by the information recording / reproducing unit 14, the system control unit 17 operates as the music characteristic amount storage unit.
- the first music feature value is associated with the music data and stored in the HD (that is, the first music feature value stored in this way is later read out, for example, as the HD second music feature value). ).
- the system control unit 17 compares the first music feature amount and the second music feature amount as music identity presence / absence determining means, and determines whether or not the first music data and the second music data are identical. Judge. More specifically, the system control unit 17 normalizes, for example, the first music feature amount and the second music feature amount, and then executes the music performance time, the key change position (or change pattern), and the code. All or part of the change position (or change pattern), beat change position (or change pattern), and beat maximum value (or minimum value, average value), etc., are compared, and the compared song features are compared.
- the presence or absence of identity is determined based on whether or not there is a match (meaning a match with a certain range of plus or minus considering errors that are not perfect matches).
- the system control unit 17 determines that the song is identical, and the first song data and the second song data are used as song identity information storage means.
- the information recording / reproducing unit 14 stores music identity information indicating the identity, for example, in the HD. For example, if the same song is recorded on the HD, Sex information is registered.
- the music identity information stored in this way is referred to when the music data is reproduced or deleted thereafter (detailed description thereof will be described later).
- the system control unit 17 determines that the music feature amounts are identical, the system control unit 17 deletes the first music data recorded on the HD, for example, in order to avoid duplicate recording of the same music. It may be configured to erase from HD.
- FIG. 2 is a flowchart showing the processing of the system control unit 17 when music data is recorded
- FIG. 3 is a flowchart showing a detailed example of the music identity determination processing in step S6 shown in FIG.
- FIG. 4 is a flowchart showing the processing of the system control unit 17 when the music data is reproduced
- FIG. 5 is a flowchart showing the processing of the system control unit 17 when the music data is deleted.
- the user operates the operation unit 15 to instruct the information reproducing unit 11 to record the first music data recorded on a CD, for example, on the HD in the information recording / reproducing unit 14 (the music data desired by the user).
- the system control unit 17 instructs the information playback unit 11 to play back the first music data recorded on a CD, for example, in response to the instruction signal.
- Step Sl the system control unit 17 gives a command to extract the first music feature amount of the first music data reproduced by the information reproduction unit 11 to the music characteristic amount extraction unit 13 (step S2).
- the system control unit 17 issues a recording command of the first music data reproduced by the information reproducing unit 11 to the information recording / reproducing unit 14, and the first music characteristic amount extracted by the music characteristic amount extracting unit 13. Is given (Step S3).
- the information reproducing unit 11 reproduces the first music data recorded on a CD, for example, and outputs the information output unit 12, the music feature amount extracting unit 13, and the information. Output to the information recording / reproducing unit 14.
- the music feature amount extraction unit 13 includes a system control unit 17 Under the control of the first music data, the first music data from the information reproduction unit 11 is input, and the first music feature amount is extracted from the first music data as described above, and the information recording / reproduction unit 14 and the system control unit 17 Output to Further, the information recording / reproducing unit 14 receives the first music data from the information reproducing unit 11 under the control of the system control unit 17, compresses the first music data, and records the compressed first music data, for example, on the HD. The first music feature quantity from the feature quantity extraction unit 13 is input, and the first music feature quantity is stored in the HD in association with the first music data.
- the system control unit 17 adds unique identification information to the music data recorded on the HD, for example, and automatically obtains the identification information, the title of the music data (for example, from a CD (for example, a CD text), or The information such as the performance time of the music data and the recording area of the music data is registered in a music list (performance list).
- the system control section 17 acquires the first music piece data output from the music piece feature quantity extraction section 13 (step S4). Subsequently, the system control unit 17 refers to the music list and refers to the second music data already recorded in the HD in the information recording / reproducing unit 14 (the first music data recorded in the above manner). The second music characteristic amount stored in association with the second music characteristic is acquired from the information recording / reproducing unit 14 (step S5).
- the system control unit 17 performs the music identity determination process as described above (step S6).
- the system control unit 17 executes, for example, the normal processing of the first music feature quantity and the second music feature quantity (step S61).
- this normalization processing in order to equalize the volume levels, the volume sample is recalculated based on the maximum value of the volume samples, to what percentage of the maximum value. In other words, after the volume is corrected, the subsequent song identity determination is performed. As a result, even if the volume is large or small, the accuracy of the determination of the song identity does not depend on the volume.
- step S62 it is determined whether the first music and the second music have the same playing time (match or not) (step S62). If they are not the same (step S62: N), the music is the same. It is determined that there is no sex (step S68). If the playing time of the music is not the same, the whole music may be compared with a part of the music (the rust of the CM). (The process moves on to the next process without performing this.) , May be left to the selection by the user.
- step S62 Y
- step S63 the force at which the key change positions of the first music and the second music are the same (whether or not the matching force is determined).
- step S68 If the key change positions are not the same (step S63: N), it is determined that there is no song identity (step S68).
- step S63: Y if the key change positions are the same (step S63: Y), subsequently, it is determined whether the chord change positions of the first song and the second song are the same (match or not). (Step S64). If the chord change positions are not the same (step S64: N), it is determined that there is no song identity (step S68).
- step S64: Y it is determined whether the beat change positions of the first song and the second song are the same (match or not). (Step S65). If the beat change positions are not the same (step S65: N), it is determined that there is no music identity (step S68).
- step S65 Y
- step S65: Y if the beat change positions are the same (step S65: Y), subsequently, at least one of the maximum value, the minimum value, and the average value of the beats of the first song and the second song is changed. It is determined whether the same force (matching force) is present or not (step S66). Note that the maximum value, minimum value, and average value of the beats are respectively calculated, a certain degree of error is allowed, and it is determined that the coincidence Z does not coincide.
- Step S66: N If at least one of the maximum value, the minimum value, and the average value is not the same, Step S66: N), it is determined that there is no music identity (step S68).
- step S66 when at least one of the maximum value, the minimum value, and the average value is the same (step S66: Y), it is determined that there is music identity (step S67).
- the process returns to the process of Fig. 2.
- the above process is merely an example, and other processes (for example, one or more of the processes of steps S63 to S66 may be skipped. Also, each of the above steps S62 to S66)
- the matching Z mismatch at the step may be scored, and for example, the score may be scored as 20 points if the playing time of the music matches, or 10 points if not, and determined by the total score.
- the system control unit 17 determines whether or not the first music data and the second music data are identical based on the result of the music identity determination processing (step S7). ), If there is an identity (step S7: Y), music identity information indicating that the first music data and the second music data are identical (for example, identification information of both music data). ) Is registered in the marking list of the same music (step S8), and this is stored in, for example, the HD by the information recording / reproducing unit 14, and the process proceeds to step S10.
- step S7: N the system control unit 17 determines, for example, all the second music data recorded in the HD. Of the second song feature amount of the second song feature amount is determined. (If multiple pieces of second song data are recorded on the HD, all of the second song feature amounts and the first song (The purpose of comparing the feature quantities) (step S9), and if the above determination has not been made for all the second music feature quantities (step S9: N), the process returns to step S5 and performs the same processing as above. I do. On the other hand, when the above determination has been made for all the second music feature amounts (step S9: Y), the process proceeds to step S10.
- step S10 it is determined whether or not the reproduction of all the songs specified by the user (when a plurality of songs is specified) has been completed, and if not completed (step S10: N ), Returning to step S1 and repeating the same processing as above. On the other hand, when the reproduction of all the music data specified by the user has been completed (step S10: Y), the processing ends.
- the music identity information is registered in the marking list. It can be effectively used when doing.
- the music identity information is registered in the marking list of the same music in the process of step S8.
- the first music data and its first music feature recorded in HD are erased in HD as described above. It may be configured as follows. With this configuration, the limited recording capacity of the recording medium can be effectively used.
- the recording of the first music data is performed so that the first music data is recorded in, for example, HD only when the first music data and the second music data have the same identity in the process of step S7. You may comprise.
- the system control unit 17 responds to the display instruction of the music list (play list) via the operation unit 15 of the user, and the music data (for example, the second music data) recorded in the HD in the information recording / reproducing unit 14, for example.
- the data list is displayed on the display unit 16.
- information e.g., identification information, title, artist name, performance time, etc.
- the user operates the operation unit 15 to continuously reproduce the music data in the music list, for example, designated (by the user) music power, program reproduction (plays the music data in the order set by the user) ) Or random playback (play music data in random order) (the user may specify music data to be played for each music! /,). Selects music data to be reproduced in response to this (step S11).
- the system control unit 17 determines whether or not the same music reproduction skip setting is ON (step S12).
- the same music reproduction skip setting is a setting for preventing duplicate reproduction of music data having the same music, and can be set by the user using the operation unit 15.
- the system control unit 17 gives a reproduction (normal reproduction) command of the selected music data to the information recording / reproduction unit 14 (step S13).
- the music data recorded in the HD in the information recording / reproducing section 14 is reproduced and output from the information output section 12.
- the system control unit 17 reads the above-described marking list, for example, the HD power via the information recording / reproduction unit 14 as the music recording determination means, Referring to the list, based on the music identity information, it is determined whether music data having the same identity as the selected music data is recorded, for example, on the HD (step S14).
- FIG. 6 is a conceptual diagram showing an example of a marking list.
- identification information of music data of five pieces of music is shown, and identification information of music data having the same identity is associated with the identification information of each piece of music data. It is shown.
- the music data with the identification information of “010” is indicated as the music data with the identification information of “1 12” and the music data of “123” having the same music data.
- information on the presence / absence of reproduction (performance) and the presence / absence of skip is shown corresponding to each piece of music data.
- the presence / absence of reproduction (performance) and the presence / absence of skipping may not be registered in the marking list, but may be temporarily stored in the RAM or the like by the system control unit 17. If the music data having the same identity as the selected music data is not recorded in, for example, the HD, that is, if the identification information of the selected music data is not registered in the marking list, (Step S14: N) As in step S13, the system control unit 17 gives the information recording / reproducing unit 14 an instruction to reproduce the selected music data (step S15).
- the system control unit 17 stores the music data having the same identity as the selected music data in, for example, the HD, that is, registers the identification information of the selected music data in the marking list. If the music data has been played (step S14: Y), it is determined whether music data having the same identity as the selected music data has already been reproduced (played) (step S16).
- step S16 when the identification information of the selected music data is “010”, the music data having the same identity as the music data (the identification information is “112”) And “123”) are both “reproduced”, so that it is determined that the music data having the same identity has not been reproduced (performed) yet (step S16: N), and the process proceeds to step SI7.
- step S16 when the identification information of the selected music data is “010”, music data having the same identity as the music data (the identification information is “ Since “1 12”) is “played”, it is determined that music data having the same shape has already been played back (played) (step S16: Y), and the process proceeds to step SI8.
- step S 17 the system control unit 17 performs reproduction setting (played) of the selected music data (for example, registers “reproduction” of the music data in the marking list), and executes step S 17. Similarly to 13, the information recording / reproducing unit 14 is instructed to reproduce the selected music data.
- step S18 the system control unit 17 performs skip setting of the selected music data (eg, registers “skip” of the music data in the marking list) as a music skip unit. Then, the music data is skipped (a command to skip the music data is given to the information recording / reproducing unit 14). Subsequently, the system control unit 17 determines whether or not all of the music data having the same identity as the selected music data has been skipped or reproduced (step S19). For example, in the example of FIG.
- step S19: N when the identification information of the selected music data is “010”, music data having the same identity as the music data (identification information is “123”) ) Is “none” for playback and “none” for skip, so that all music data having the same identity as the selected music data is skipped or reproduced, and it is determined that the music data is not available (step S19: N), In this case, the process immediately returns to step S11. Then, in step S11, the music data to be reproduced next is selected, and the processing after step S12 is repeated.
- step S19: Y all of the settings of the selected music data and the music data having the same as the reproduction data and the skip data are reset (step S20) (for example, the reproduction of the music data in the marking list is performed. To “No” and skip “Yes” to “No”), and return to step S11. In other words, it is considered that all the music data 1S having the same identity as the selected music data are selected, and the setting is cleared in preparation for the next round.
- the user operates the operation unit 15 to continuously reproduce the music data in the music list, for example, a specified music power, program reproduction, and random reproduction.
- the system control unit 1 When any one of the reproduction is instructed, the system control unit 1
- the music data having the same identity as the selected music data is recorded on the HD, for example, based on the music identity information with reference to the marking list described above. It is determined whether or not it is. And music day with identity
- the system control unit 17 selects the optimum music data from the music data having the same according to a preset selection condition, and reproduces the music data.
- Examples of powerful selection conditions include, for example, music data whose recording date and time is close to the current time (new), music data that has the longest playing time (that is, music data that has been completely recorded until the end of the initial power), or the best sound quality.
- the music data recorded on the sound source (that is, the recording medium on which the music data was originally recorded) is configured to be the optimum music data. With this configuration, it is possible to reproduce the most suitable music data among the music data having the same identity, and it is possible to prevent the user from duplicating the same music data.
- the system control unit 17 responds to the display instruction of the music list (play list) via the operation unit 15 of the user, and the music data (for example, the second music data) recorded in the HD in the information recording / reproducing unit 14, for example.
- the music list of (data) is displayed on the display unit 16 (similar to the case of music data reproduction).
- step S21 it is determined whether or not the selected display format is the same song erasing list (step S22).
- step S22 If the selected display format is not the same song erasure list (step S22: N), the system control unit 17 stores, for example, information on the song data recorded on the HD in title order, recording date and time.
- the normal music erasure list arranged in the order, the reproduction frequency order, or the performance time order is displayed on the display unit 16 (step S23).
- step S22: Y the system control unit 17 reads the above-described marking list via the information recording / reproducing unit 14, for example, also for the HD power. Refers to the powerful marking list and registers the information related to the music data. It is determined whether or not the force is applied (step S24). If the information about the music data is not registered in the marking list (step S24: N), the system control unit 17 causes the display unit 16 to display the information, and proceeds to step S23.
- Step S24 when the information about the music data is registered in the marking list (Step S24: Y), the system control unit 17 refers to the powerful marking list and performs the processing based on the music identity information. Then, the same song deletion list is displayed on the display unit 16 (step S25). That is, information (information indicating music data) on a plurality of identical music data is presented to the user in a selectable manner using the same music deletion list.
- FIG. 7 is a diagram showing an example of the same song deletion list displayed on the display unit 16.
- the same music erasure list example shown in Fig. 7 only the identification information of the music data registered in the marking list is displayed, and the identification information of each group of a plurality of identical music data is displayed. Are displayed together.
- step S26 the system control unit 17 Recognition (step S26: Y)
- the information recording / reproducing unit 14 is controlled to delete the music data corresponding to the identification information of the music data selected by the user, for example, from the HD (step S27).
- the limited recording capacity of the recording medium can be effectively used, and the free space can be effectively increased.
- the user may delete unnecessary music (for example, music that is not heard so much, music that has been recorded repeatedly, or music that is getting tired). Since the information about the music data having the same music is displayed on the same music deletion list, it is possible to support the user's decision to delete the music data and the selection operation. Therefore, in the same music erasure list, information on the same music data is collectively displayed for each group of a plurality of identical music data, so that the user can efficiently delete the music data to be deleted. Can choose well.
- unnecessary music for example, music that is not heard so much, music that has been recorded repeatedly, or music that is getting tired. Since the information about the music data having the same music is displayed on the same music deletion list, it is possible to support the user's decision to delete the music data and the selection operation. Therefore, in the same music erasure list, information on the same music data is collectively displayed for each group of a plurality of identical music data, so that the user can efficiently delete the music data to be deleted. Can choose well.
- information on the music data is arranged and displayed, for example, in the order of the recording date and time or the playing time. May be configured.
- this configuration it is possible to support the user in making a decision on music data to be deleted from a plurality of music data having the same identity. For example, if the user wants to erase the music data with the oldest recording date and time, or wants to erase the music data with the shortest playing time (that is, the music data is not completely recorded until the end of the first time). The user can quickly select the music data to be deleted.
- the type of the sound source of each music data (that is, the recording medium on which the music data was originally recorded?) (Information such as magnetic tape,
- Information such as magnetic tape
- the music data erasing process may be automatically started to prompt the user to perform the music data erasing process.
- the music data itself is used to determine the identity of the music data.
- CD text is not required, so that the sound source can be used without limiting to CD, and the identity of music data can be determined more accurately. Therefore, for example, even when a plurality of identical music data are recorded in the HD, the reproduction of the music data having the same identity as the already reproduced music data can be automatically skipped. It is possible to prevent the same music from being heard more than once. Further, for example, even when a plurality of identical music data are recorded in the HD, any of the identical music data can be quickly deleted, so that the recording capacity of the limited recording medium is limited. Can be used effectively, and the free space can be effectively increased.
- the information reproducing unit 11 is configured to reproduce the music data recorded on the recording medium.
- the information reproducing unit 11 other than the one described above may be, for example, a tuner in addition to the one described above. May be applied.
- the tuner receives a radio wave broadcast from a broadcasting station such as a radio or a television via an antenna, detects an RF signal, and tunes the frequency to a phase lock frequency specified by the system control unit 17. This converts the RF signal into an intermediate frequency signal, and performs processing such as amplification and demodulation to reproduce music data.
- the reproduced music data is output to the information output unit 12, the music feature amount extraction unit 13, and the information recording / reproduction unit 14, as described above.
- the sound source of the music data to be reproduced is not limited to the information reproduction and recording device 1 in particular, but may be a recording medium in a server connected to a network such as the Internet.
- the information reproducing / recording apparatus 1 is provided with a communication device (connected to the system control unit 17) for connecting to a server connected to the network, and the server is connected to the music recorded on the recording medium. It reproduces the data, distributes the reproduced music data to the information reproducing / recording device 1 via the network (for example, streaming distribution, on-demand distribution, etc.), and the distributed music data is received by the communication device, and the system Under the control of the control unit 17, the information may be output to the information output unit 12, the music feature amount extraction unit 13, and the information recording / reproduction unit 14.
- the music identity discrimination device of the present application is applied to the information reproduction and recording device.
- the present invention is not limited to this.
- the information reproduction device and the information recording device are connected to a dedicated cable.
- the present invention is applicable to either the information reproducing apparatus or the information recording apparatus in the information reproducing and recording system connected by the above.
- the present invention is not limited to the above embodiment.
- the above embodiment is merely an example, and any of those having substantially the same configuration as the technical idea described in the claims of the present invention and having the same effect can be obtained. Are also included in the technical scope of the present invention.
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
- Management Or Editing Of Information On Record Carriers (AREA)
Abstract
Description
Claims
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JP2004058445A JP2007304119A (ja) | 2004-03-03 | 2004-03-03 | 楽曲同一性判別装置及び方法等 |
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JPH11162147A (ja) * | 1997-11-28 | 1999-06-18 | Pioneer Electron Corp | 情報記録媒体及びその再生装置 |
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JP2001189048A (ja) * | 1999-10-20 | 2001-07-10 | Sony Corp | 記録装置 |
JP2001306580A (ja) * | 2000-04-27 | 2001-11-02 | Matsushita Electric Ind Co Ltd | 音楽データベース検索装置 |
JP2002041527A (ja) * | 2000-07-24 | 2002-02-08 | Alpine Electronics Inc | 音楽情報管理方法及び音楽情報管理装置 |
JP2002208259A (ja) * | 2001-01-10 | 2002-07-26 | Kenwood Corp | 重複曲の記録防止機能付きの曲情報記録装置 |
JP2003099462A (ja) * | 2001-09-21 | 2003-04-04 | Victor Co Of Japan Ltd | 楽曲検索装置 |
JP2003203467A (ja) * | 2002-01-08 | 2003-07-18 | Sony Corp | データ処理装置及び方法 |
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2004
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JPH0934755A (ja) * | 1995-05-18 | 1997-02-07 | Ee I Soft Kk | 記憶装置内容整理システムおよび記憶装置内容整理方法 |
JPH11162147A (ja) * | 1997-11-28 | 1999-06-18 | Pioneer Electron Corp | 情報記録媒体及びその再生装置 |
JP2000113651A (ja) * | 1998-10-07 | 2000-04-21 | Sharp Corp | 情報記録再生装置 |
JP2001189048A (ja) * | 1999-10-20 | 2001-07-10 | Sony Corp | 記録装置 |
JP2001306580A (ja) * | 2000-04-27 | 2001-11-02 | Matsushita Electric Ind Co Ltd | 音楽データベース検索装置 |
JP2002041527A (ja) * | 2000-07-24 | 2002-02-08 | Alpine Electronics Inc | 音楽情報管理方法及び音楽情報管理装置 |
JP2002208259A (ja) * | 2001-01-10 | 2002-07-26 | Kenwood Corp | 重複曲の記録防止機能付きの曲情報記録装置 |
JP2003099462A (ja) * | 2001-09-21 | 2003-04-04 | Victor Co Of Japan Ltd | 楽曲検索装置 |
JP2003203467A (ja) * | 2002-01-08 | 2003-07-18 | Sony Corp | データ処理装置及び方法 |
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