WO2007023644A1

WO2007023644A1 - Musical composition searching device, method, and program, and recording medium

Info

Publication number: WO2007023644A1
Application number: PCT/JP2006/315183
Authority: WO
Inventors: Goro Kobayashi
Original assignee: Pioneer Corporation
Priority date: 2005-08-24
Filing date: 2006-08-01
Publication date: 2007-03-01

Abstract

A musical composition searching device (101) contained in a car navigation system. The musical compositions stored in an HD of the car navigation system have been all reproduced. By referring to the reproduced musical compositions, a new musical composition to be reproduced is searched for. The musical composition searching device (101) comprises a receiving section (201) for receiving information on the tune specified by the user, a searching section (202) for searching a database storing musical data on musical compositions for musical data on musical compositions having the one matching or concerning the specified one when the information on the specified tune is received, and a transmitting section (203) for transmitting the results of the search. With this, musical data on a musical composition which the user likes and is not stored in the HD can be obtained from the musical composition searching device (101)

Description

Specification

Music retrieval apparatus, method, program, and recording medium

Technical field

The present invention relates to a music search device, a music search method, a music search program, and a recording medium that search for music. However, the present invention is not limited to the above-described music search device, music search method, music search program, and recording medium.

Background art

[0002] Conventionally, a music piece that reduces the burden on the dealer side, can provide music for trial listening before the new song is released, and can make all the music available for trial listening. The system is known. The music preview system of the present invention receives a music distribution server that provides music data to a music CD store or the like, music data provided from the music distribution server, and relates to the received music data and the music data. A music information distribution server that generates and stores music information based on music related data to be stored, a distributed server that receives and stores music information from the music information distribution server, and a distributed server that is connected to the distributed server. It includes a store system that provides information to customers, and a computer network that connects the music information distribution server and the distributed server so that they can communicate with each other (for example, see Patent Document 1 below).

[0003] Patent Document 1: Japanese Patent Application Laid-Open No. 2003-108153

Disclosure of the invention

Problems to be solved by the invention

[0004] However, with the technology described in Patent Document 1 described above, music data is searched based on information such as the song name, artist name, or CD jacket that the user knows and is provided to the user. To do. For example, in a navigation device that can store songs owned by the user, the number of songs that can be stored is limited, and if you have been in the vehicle for a long time, the same song will be played repeatedly. I get tired of the music while listening repeatedly. For this reason, in order to audition music that does not overlap with the music owned by the user, the music must be specified in detail, which may be an obstacle to driving. can give.

[0005] Further, as an example, there is a problem that if a storage medium such as HD (node disk) is added in order to increase the number of songs that can be stored, the cost of adding HD increases. In addition, in order to increase the number of HDs, it is necessary to secure a space for installing HDs so as not to hinder driving. One example is the problem of increased effort.

Means for solving the problem

[0006] The music search device according to the invention of claim 1 is configured to receive information relating to a musical tone specified by a user, and to receive music data of a musical piece when information relating to a musical tone is received by the receiving unit. Search means for searching for music data of a song having a tone that matches or is related to the tone from the database to be stored, and a sending means for sending the search result searched by the search means And

[0007] The music search device according to the invention of claim 8 includes a designation means for accepting designation of an arbitrary music tone, and a program that broadcasts music of a music tone that matches or is related to the music tone designated by the designation means. Search means for searching from an electronic program guide relating to radio broadcast or television broadcast; Setting means for setting the frequency band of the broadcast wave of the radio broadcast or television broadcast to the frequency band of the program searched by the search means; It is characterized by providing.

[0008] The music search method according to the invention of claim 9 includes a receiving step of receiving information about a musical tone specified by a user, and music information of a musical piece when the information about the musical tone is received by the receiving step. A search step for searching music data of a song having a tone matching or related to the tone from the database to be stored, and a sending step for sending the search result searched by the search step. Features.

[0009] The music search method according to the invention of claim 10 includes a designation step of accepting designation of an arbitrary musical tone, and a program that broadcasts a musical piece of a musical tone that matches or is related to the musical tone specified by the designation step. Or a search step for searching from an electronic program guide related to television broadcasting; a setting step for setting the frequency band of the broadcast wave of the radio broadcast or television broadcast to the frequency band of the program searched by the search step; It is characterized by containing. [0010] A music search program according to claim 11 causes a computer to execute the music search method according to claim 9 or 10.

[0011] A recording medium according to the invention of claim 12 records the music search program according to claim 11.

Brief Description of Drawings

FIG. 1 is an explanatory diagram showing an example of a system configuration of a music search system according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram showing an example of a functional configuration of the music search device according to the first embodiment of the present invention.

FIG. 3 is a flowchart showing a music search processing procedure of the music search device according to the first embodiment of the present invention.

FIG. 4 is an explanatory diagram showing an example of a functional configuration of the music search device according to the second embodiment of the present invention.

FIG. 5 is a flowchart showing a music search processing procedure of the music search device according to the second embodiment of the present invention.

FIG. 6 is an explanatory diagram showing an example of a hardware configuration of a music search device and a communication terminal.

FIG. 7 is a table showing the relationship between music and feature quantities.

[FIG. 8] FIG. 8 is a table showing the feature quantity and the numerical value of the radius of the tune key word.

FIG. 9 is a graph showing a graphic area.

[FIG. 10] FIG. 10 is a graph in which the feature amount of the music and the feature amount of the tone key are plotted on the same coordinate plane (XY plane).

FIG. 11 is a flowchart showing an example of a music search processing procedure of the music search device.

[FIG. 12] FIG. 12 is a flowchart showing an example of the music search processing procedure shown in step S1102.

FIG. 13 is a flowchart of an example of a music search processing procedure of the music search device according to the second embodiment. O

Explanation of symbols

Music search system

Yes

101 music search device

102 1 end

103 network

201 Receiver

202 Search part

203 Transmitter

204 Music DB

400 music search device

401 Receiver

402 Designated part

403 search part

404 Setting section

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, preferred embodiments of a music search device, a music search method, a music search program, and a recording medium according to the present invention will be described in detail with reference to the accompanying drawings.

[0015] (Embodiment 1)

(System configuration of music search device)

First, the system configuration of the music search system according to the first embodiment of the present invention will be described. FIG. 1 is an explanatory diagram showing an example of the system configuration of the music search system according to the first embodiment of the present invention. In FIG. 1, a music search system 100 is configured by connecting a music search device 101, one or a plurality of communication terminals 102, and a network 103 such as the Internet.

The music search device 101 is a server that receives search conditions for searching music data of music from the communication terminal 102 and searches for music data of music that matches the search conditions. Here, the search condition refers to various types of information used when searching for music data of music, such as information related to music tone, information related to users, and information related to movement, which will be described later. Through The user terminal 102 also receives input of information related to the musical tone, and transmits information related to the musical tone and other information to the music search device 101.

[0017] (Functional configuration of music search device)

Next, a functional configuration of the music search device 101 according to the first embodiment of the present invention will be described. FIG. 2 is an explanatory diagram showing an example of a functional configuration of the music search device 101 according to the first embodiment of the present invention. In FIG. 2, the music search apparatus 101 includes a reception unit 201, a search unit 202, and a transmission unit 203.

[0018] The receiving unit 201 receives information related to the musical tone specified by the user. Here, the user is a person who uses the music search device 101, and specifically, for example, is an owner of the communication terminal 102. More specifically, for example, when the communication terminal 102 is a portable terminal such as a mobile phone, it is the owner of the portable terminal and the communication terminal 102 is provided in a mobile body such as a vehicle. Is the owner of the mobile object. In addition, the user of the moving object may be a passenger who is on the moving object such as a driver or a passenger of the moving object regardless of the owner of the moving object.

[0019] The tone of music refers to the tone of music. Specifically, for example, “bright”, “fun”, “dark”, “quiet”, “good tempo”, and so on are classified as sensibility. The information about the tune is electronic information for specifying the tune, and can be arbitrarily specified by the user. A song means a music song, and includes all music songs regardless of genres such as pop, rock, classical, enka and jazz.

[0020] In addition, the receiving unit 201 receives identification information related to music pieces owned by the user. Here, the song owned by the user means a song read from the communication terminal 102 owned by the user. Specifically, for example, it is stored in a storage medium such as an HD built in the communication terminal 102, a CD inserted in a CD drive, or a flash memory. Further, the identification information related to the music is information for specifying the music, and specifically includes, for example, the name of the music, the song writer, the song composer, the singer or the performer, or at least one of these. This refers to electronic information such as text data and identification codes that list items.

[0021] Further, the receiving unit 201 receives identification information related to the genre of music owned by the user. Here, the genre represents the above-mentioned music classification, for example, pops, Rock, enka, jazz, classic, etc. Moreover, the identification information regarding the genre is electronic information for specifying the genre, and can be arbitrarily designated by the user.

[0022] In addition, the receiving unit 201 receives identification information regarding an artist designated by the user. Here, an artist is a singer who is generally an artist of a song (whether solo or drape), but in this specification, in addition to a singer, a songwriter, a composer, and a performer may be included. Good. The identification information about the artist is information for identifying the above-mentioned artist. Specifically, for example, the name of a singer (name, stage name, group name), the name of a lyricist, composer, or performer ( This is electronic information such as text data or identification code that represents the artist name (name, stage name).

[0023] In addition, the receiving unit 201 receives the reproduction history information of the music reproduced by the user.

Here, the reproduction history information is a list of electronic information including a song name, an artist name, a reproduction date and time, etc. of a song reproduced in the past by the user.

[0024] The receiving unit 201 receives user identification information. Here, the user identification information is information for identifying the user. Specifically, for example, the user's name, gender, date of birth, age, address, hobby, special skill, etc. can be mentioned.

[0025] In addition, the receiving unit 201 receives information regarding user movement. The information related to movement is information indicating the movement state when the user is moving. Specifically, for example, the point information such as the departure point, the destination point, the current point, the departure time, and the arrival point of the destination point. Time information such as scheduled arrival time and travel time can be listed. More specifically, for example, when the communication terminal 102 is a portable terminal such as a mobile phone, the information represents the movement state of the user who owns the portable terminal. Further, when the communication terminal 102 is provided in a moving body such as a vehicle, it is information indicating the moving state of the moving body.

[0026] In addition, when the receiving unit 201 receives information about the tune, the search unit 202 searches the music database (DB) 204 for a tune that matches or is related to the tune received by the receiving unit 201. Search the music data of the music you have. Here, the music DB 204 stores music data of the music. The music DB 204 may be provided in the music search device 101, or may be provided in an external sano other than the music search device 101. [0027] Music data is electronic information that can output (reproduce) a song as a sound. Specifically, for example, WMA (Windows (registered trademark) Media Audio), MPEG3 (Moving Picture Experts Group 3) Etc. In addition, the music data may be data that can be reproduced as a whole, or a part of the music such as a sample.

[0028] Further, the music DB 204 also stores the music data of the music. Here, the metadata is incidental information related to music data. Specifically, for example, information such as song name, artist name, instrument used, tempo, song characteristics, and the like.

This metadata is information for searching for target music data from music data stored in the music DB 204. Specifically, the search unit 202 extracts, for example, metadata that matches information related to the music tone received by the receiving unit 201, and reads out music data associated with the extracted metadata. Search for.

[0030] Here, the identification information related to the music tone described in the metadata will be described. The music data of the music stored in the music DB 204 has items (characteristic items) representing the characteristics of the music determined for each music data, and is quantified (quantified) for each characteristic item. Here, the quantified value is the “feature” of the feature item. In addition, for example, feature items include items such as “rhythm”, “beat”, “tempo”, and “pitch” of a song, and can be used to express the nature of a song as a numerical value. Not limited to these. These feature quantities are described in the metadata.

[0031] Also, information on the music tone designated by the user (designated music tone information) is also quantified for each feature item described above. The specified music tone information can be quantified by the music search device 101. Further, the specified music tone information may be quantified by the communication terminal 102. In this case, the music search device 101 receives the quantified data from the communication terminal 102. Specific music data search processing using metadata will be described later. [0032] In addition, the search unit 202 searches for music data of music other than the music specified by the identification information (music identification information) regarding the music owned by the user, which is received by the receiving unit 201. For example, when music data of a song owned by the user is stored in the communication terminal 102, identification information indicating a song name of the music data is received by the receiving unit 201. Thereby, the search unit 202 can specify the music stored as music data in the user's communication terminal 102 based on the received identification information, and can search the music data of music other than the specified music. it can. Therefore, it is possible to search for a new piece of music that matches the user's preference.

[0033] In addition, the search unit 202 may use the identification information (genre identification information) related to the genre received by the reception unit 201 to search for music data of music other than the genre specified by the genre identification information. it can. For example, when multiple candidate music data are searched for as music identification information, it is possible to narrow down to music data other than the genre specified by the genre identification information.

Specifically, for example, when the received genre identification information is “Rock” and “Classic”, music data of “pops” and “enka” that match the tune of the specified tune information is searched. . Therefore, even if the user listens to the genre, it is possible to search for a new piece of music that matches the user's preference as long as the user's favorite music tone.

[0035] The search unit 202 may also search for music related to a person other than the person specified by the artist identification information, using the identification information (artist identification information) related to the artist received by the receiving unit 201. it can. For example, when a plurality of candidate music data is searched for as music identification information, it can be narrowed down to music data other than the artist specified by the artist identification information.

Specifically, for example, the artist specified by the received artist identification information is “Morning son. ”,“ Morning Son. ”That matches the tone of the specified tone information. Music data other than “” are searched. Therefore, even a singer, lyricist, composer, or performer that the user has never heard can search for a new piece of music that matches the user's preference if the user's favorite tone. .

[0037] In addition, the search unit 202 uses the playback history information received by the receiving unit 201, and It is also possible to search for music other than the music data of the music specified by the playback history information. For example, when a plurality of candidate music data are searched as music identification information, it is possible to narrow down to music data other than music specified by the reproduction history information.

[0038] Specifically, for example, when “middle age group (group name)” or “only you (song name)” is specified by the received playback history information, other than singer power ^ middle age group ” The music data of the music is searched. It is also possible to search for music data of songs other than “You Only” with music data other than songs with singer power S “Middle-aged Corps”. Therefore, even if the singer name or music has never been listened to by the user, it is possible to search for a new music that matches the user's preference if the user likes the music.

[0039] The search unit 202 can also search for music data using the user identification information received by the receiving unit 201. Specifically, for example, the search is performed for a singer's music with the same name and the same name as the user, a singer with the same name or the same name, a singer whose age is similar to that of the user.

[0040] The search unit 202 can also search for music data using the information regarding movement received by the receiving unit 201. Specifically, for example, when the communication terminal 102 is a mobile object and the current position of the mobile object is close to the sea, search for music that is reminiscent of the sea and music data that includes “sea” in the song. To do.

In addition, the transmission unit 203 transmits the search result searched by the search unit 202. Here, the search result means music data searched by the search unit 202 or electronic information such as text data or an identification code obtained by listing the searched music.

[0042] (Music Search Processing Procedure of Music Search Device)

Next, a music search processing procedure of the music search apparatus 101 according to the first embodiment will be described. FIG. 3 is a flowchart showing the music search processing procedure of the music search apparatus 101 according to the first embodiment of the present invention. In FIG. 3, first, it is determined whether or not the receiving unit 201 has received information related to the tune specified by the user (step S301). When information related to the tune is received (step S301: Yes), the search unit 202 searches for music data of the tune (step S302). Next, the transmission unit 203 transmits the search result searched by the search unit 202 to the communication terminal 102 (step S303). As a result, a series of processing ends. [0043] According to the first embodiment, it is possible to search for music data of a music piece that the user wants to listen to. Therefore, it is possible to easily listen to a new piece of music that matches the user's preference when the user wants to listen.

[0044] (Embodiment 2)

Next, a functional configuration of the music search apparatus according to the second embodiment of the present invention will be described. In the first embodiment, the power of searching music data of music from the music DB 204. In the second embodiment, the power of the electronic program table for radio broadcasting is also searched for music. FIG. 4 is an explanatory diagram showing an example of a functional configuration of the music search device according to the second embodiment of the present invention. In FIG. 4, the music search apparatus 400 includes a receiving unit 401, a specifying unit 402, a searching unit 403, and a setting unit 404.

First, the receiving unit 401 receives an electronic program guide related to radio broadcast and a radio broadcast wave of an arbitrary frequency band via an antenna. Here, the radio broadcast wave is specifically, for example, a terrestrial digital radio broadcast wave. The electronic program guide related to radio broadcasting is electronic data describing programs scheduled to be broadcast for radio broadcasting. The electronic data includes information related to the feature quantity of the music broadcast in the program.

In addition, the designation unit 402 accepts designation of an arbitrary music tone. The music tone is specified by a button, touch panel or remote control provided on the music search device 400.

[0047] In addition, the search unit 403 searches the electronic program guide related to radio broadcast or television broadcast for a program that broadcasts a song having a tune that matches or is related to the tune specified by the specification unit 402. For example, if the specified tone is a “bright” tone, a program that currently broadcasts a song with a bright tone is searched. The program search receives the above-mentioned terrestrial digital radio broadcast wave, and from the information related to the feature amount of the music included in the electronic program guide, the program that broadcasts the music of the music that matches or is related to the specified music. Search for

[0048] The setting unit 404 sets the frequency band of the radio broadcast wave to the frequency band of the program searched by the search unit 403. Specifically, for example, when the broadcast station that broadcasts the program searched by the search unit 402 is “A broadcast station (lxx5 [Hz])”, the Set the first frequency to 1χχ5 [Hz].

Next, a music search processing procedure of the music search device 400 according to the second embodiment will be described. FIG. 5 is a flowchart showing a music search processing procedure of the music search device 400 according to the second embodiment of the present invention. In FIG. 5, first, it is determined whether designation of an arbitrary tune is accepted from the designation unit 402 (step S501). When the specification of an arbitrary tune is accepted (step S501: Yes), the search unit 403 searches the electronic program guide related to radio broadcasting for a song with a tune that matches or is related to the tune specified by the specification unit 402. A program to be broadcast is searched (step S502). Next, the setting unit 404 sets the frequency band of the broadcast wave of the radio broadcast to the frequency band of the program searched by the search unit 403 (step S503). As a result, the series of processes is completed.

[0050] According to the second embodiment, it is possible to automatically set a tuner to a broadcast wave that broadcasts a musical piece that matches the user's preference. Therefore, the user can listen to the music that matches the user's preference without performing the tuning by himself. In addition, when the music search device 400 is mounted on a vehicle, it is not necessary for the user to perform tuning during driving, so that driving can be performed safely. The second embodiment is not limited to the ability to explain radio broadcasting, but can be applied to, for example, searching for programs for television broadcasting. TV broadcast waves include terrestrial digital TV broadcast waves, and it is possible to search for programs that broadcast music with a tone that matches or is related to the specified tone from the electronic program guide for that television broadcast. The frequency band of the broadcast wave of the television broadcast can be set. This makes it possible to automatically tune broadcast waves not only for radio broadcasts but also for television broadcasts.

Example 1

[0051] (Hardware configuration of music search device and communication terminal)

Next, an example (Example 1) of the music search system 100 according to the first embodiment of the present invention will be described. Here, an example of the hardware configuration of the music search device 101 and the communication terminal 102 constituting the music search system 100 will be described. FIG. 6 is an explanatory diagram showing an example of the hardware configuration of the music search device 101 and the communication terminal 102.

In FIG. 6, the music search device 101 and the communication terminal include a CPU 601, a ROM 602, RAM 603, magnetic disk drive 604, magnetic disk 605, optical disk drive 60 6, optical disk 607, audio I / F (interface) 608, microphone 609, speaker 6 10, input device 611, video IZF612 And a display 613, a communication iZF (interface) 614, and a GPS Resino 615. The components 601 to 615 are connected by a bus 600.

First, the CPU 601 governs overall control of the music search device 101. The ROM 602 records programs such as a boot program, a route search program, a route guidance program, a voice generation program, and a music search program.

Here, the route search program causes the CPU 601 to search for an optimal route from the departure point to the destination point using map information recorded on the optical disc 607 and the like. Here, the optimal route is the shortest (or fastest) route to the destination or the route that best meets the conditions specified by the user. The guidance route searched by executing the route search program is output to the audio IZF 608 and the video IZF 612 via the CPU 601.

Further, the route guidance program is based on the guidance route information searched by executing the route search program, the current location information of the communication terminal 102 acquired by the communication IZF 614, and the map information read from the optical disc 607. CPU 601 generates real-time route guidance information. The route guidance information generated by executing the route guidance program is output to the audio IZF608 and video IZF612 via the CPU601.

[0056] The sound generation program causes the CPU 601 to generate tone and sound information corresponding to the pattern. That is, based on the route guidance information generated by executing the route guidance program, the virtual sound source corresponding to the guidance point is set and the voice guidance information is generated, and output to the voice IZF 608 via the CPU 601.

[0057] The music search program receives information related to the musical tone input by the user, and causes the CPU 601 to search the musical piece DB 204 for a musical piece having a musical tone that matches or is related to the input musical tone. In addition, the music search program is a program that broadcasts music that matches or is related to any specified musical tone, and is used for electronic programs related to radio and television broadcasting. You can also search the middle power of the composition table. Details of the music search process will be described later.

The RAM 603 is used as a work area for the CPU 601. The magnetic disk drive 604 controls data read / write to the magnetic disk 605 according to the control of the CPU 601. The magnetic disk 605 records data written under the control of the magnetic disk drive 604. As the magnetic disk 605, for example, HD (node disk) or FD (flexible disk) can be used.

The optical disk drive 606 controls data read / write to the optical disk 607 according to the control of the CPU 601. The optical disc 607 is a detachable recording medium from which data is read under the control of the optical disc drive 606. The optical disc 607 can also use a writable recording medium. Further, the removable recording medium may be a force MO of the optical disc 607, a memory card, or the like. The above-described map information is recorded on the optical disc 607. Map information is used for route search and route guidance.

Also, the audio IZF 608 is connected to a microphone 609 for audio input and a speaker 610 for audio output. Audio received by the microphone 609 is AZD converted in the audio IZF608. In addition, sound is output from the speaker 610. Examples of the input device 611 include a remote controller having a plurality of keys for inputting characters, numerical values, various instructions, and the like, a keyboard, a mouse, and a touch panel.

In addition, the video IZF 612 is connected to the display 613. Specifically, the video I / F 612 includes, for example, a graphic controller that controls the entire display 613, a buffer memory such as VRAM (Video RAM) that temporarily records image information that can be displayed immediately, and a graphic controller. Based on the output image data, it is configured by a control IC for controlling the display of the display 613.

The display 613 displays icons, cursors, menus, windows, or various data such as characters and images. As this display 613, for example, a CRT, TFT liquid crystal display, plasma display or the like can be adopted.

In addition, the communication IZF 614 is connected to the network 103 via radio or a communication cable, and functions as an interface between the network 103 and the CPU 601. Net The work 103 includes a LAN, a WAN, a public line network, a mobile phone network, and the like. Communication IZF614 is composed of a tuner, VICS (Vehicle Information and Communication System) Z beacon receiver, wireless communication equipment, and other communication equipment. Get road traffic information.

[0064] In addition, the GPS receiver 615 acquires information indicating the current position of the moving body (the current position of the communication terminal 102) using output values of GPS (Global Positioning System) and various sensor forces.

Note that the receiving unit 201, the searching unit 202, and the transmitting unit 203 shown in FIG. 2 are executed by the CPU 601 with the programs recorded in the ROM 602, RAM 603, magnetic disk 605, optical disc 607, etc. shown in FIG. The function is realized by controlling the units 608 to 615 in the music search apparatus 101.

Next, the music search process in the music search program recorded on the recording medium such as the ROM 602 described above will be described. First, feature items and feature amounts of music data of a song will be described. In the music data of a song, multiple types of items (hereinafter referred to as “feature items”) representing the features of the song are determined, and quantified (numerized) for each feature item. Here, the quantified value is called “feature amount” of the feature item, and the music is represented by the feature amount of the number of types of feature items. In the present specification, each feature amount is represented in a range of 0 to 1. Specific examples of feature items include items such as “Rhythm”, “Beat”, “Tempo”, and “Pitch”. Not limited to.

FIG. 7 is a table showing the relationship between music and feature quantities. Table 701 uses two types of feature items (for example, “rhythm” and “beat”) to simplify the explanation. In table 701, for each song (songs Al to Am, m is an identification number for identifying a song), the characteristics of feature item 1 (for example, “rhythm”) and feature item 2 (for example, “beat”) The amount is fixed. Specifically, for example, for music piece A1, the feature quantity of the rhythm that is feature item 1 is “0.2”, and the feature quantity of the beat that is feature item 2 is “0.6”.

[0068] Next, a description will be given of the feature value of the tone of music input by the user. Also, Here, it is assumed that the information related to the tune of music input by the user is input by keywords. The input keyword (tune key word) is a character string that indicates the tone of the music key. Specifically, for example, “bright”, “dark”, “good tempo”, “paste is good!”, Etc. Is a character string.

[0069] For each of these tune keywords, a feature amount and a radius are set for the feature item as described above. Here, the radius is a radius when the feature amount of the tone key word is the center coordinate of a circle (or sphere) in a coordinate space having the feature amount of the feature item as a coordinate axis.

FIG. 8 is a table showing the feature amount and the numerical value of the radius of the tune key word. In Table 801, the feature value of feature item 1, the feature value of feature item 2, and the value of radius R for each song keyword (tune keywords Bl to Bk, k are identification numbers for identifying song keywords) Is stipulated. Specifically, for example, the melody keyword B1 (for example, “bright”) has a feature value of “0.7” as the feature item 1 and a beat feature value of “0.2” as the feature item 2. It can be expressed by a graphic area of a circle with a radius R (R = 0.2) centered on the coordinate value consisting of

[0071] The above-described music tone keywords indicating the tone of the music tone are classified according to human emotional expressions. “Bright” includes “very bright”, “slightly bright”, etc. Since it cannot be expressed simply by a single numerical value, the area included in “bright” is defined. Therefore, the radius R described above specifies the area. For example, if the above-described circle graphic area includes coordinates representing the feature amount of a music piece, the music piece having the coordinates has a “bright” tone. Specific examples will be described later.

[0072] The value of radius R shown in table 801 may be set experimentally or empirically, or may be set by simulation or the like. In addition, the value of radius R can be changed or updated. By changing or updating the value of radius R, it is possible to search for music that meets user preferences.

Here, the graphic area described above will be specifically described. Figure 9 is a graph showing the graphic area. In the graph shown in Fig. 9, the feature quantity indicating the rhythm that is feature item 1 is the horizontal axis (hereinafter referred to as the X axis), and the feature quantity indicating the beat that is the feature item 2 is the vertical axis (hereinafter the Y axis). It is expressed in the XY plane. The feature amount of the tune key word B1 in the table 801 shown in FIG. The coordinate bl indicating is plotted on the XY plane.

[0074] Circle C represents a region (curve region) indicating the tone of the tone key word B1, and is a figure having a radius of 0.2 centered on coordinates bl (0.7, 0.2). For example, if the melody keyword B1 is “bright”, a song having coordinates (for example, coordinates G (0, 6, 0.3)) indicating the feature quantity composed of the rhythm and beat in the circle C is “bright”. "It's a tune.

[0075] FIG. 10 is a graph in which the feature amount of the music and the feature amount of the tune key are plotted on the same coordinate plane (XY plane). In FIG. 10, the characteristic quantities of the music pieces Al, A2, A3, A4, and Am shown in the table 701 are plotted (al, a2, a3, a4, am in the figure). In addition, the feature values for each of the key words Bl, B2, B3, B4, and Bk shown in Table 801 are plotted (bl, b2, b3, b4, bk in the figure). Circle showing the area CI, C2, C3, C4, Ck

[0076] In addition, Fig. 10 [Koo! / Turn, coordinates al, a2, a3, ami, circle CI, C2, C3, C4, Ck [Because this is not included, the entered tone keyword is Bl , B2, B3, B4, Bk, no music is a candidate. Also, a4 is included in circles C2 and Ck, so it can be a candidate regardless of which song keyword is entered.

[0077] (Music Search Process of Music Search Device)

Next, the music search process of the music search apparatus 101 will be described. Here, a case will be described in which sample data of music data is transmitted to the user's communication terminal 102, the user listens to it, and a piece of music corresponding to the sample data is purchased. FIG. 11 is a flowchart showing an example of a music search processing procedure of the music search device 101.

In FIG. 11, first, when a music key word is received from the communication terminal 102 (step S1101: Yes), the music search device 101 performs a music search process (step S1102). Details of the music search process will be described later. Next, it is judged whether there is a song candidate (step S1103). If there is no song candidate (step SI 103: No), the absence of candidate is notified (step S1104). As a result, the series of processes is completed.

On the other hand, if there is a music candidate in step S1103 (step S1103: Yes), sample data associated with the music data is extracted (step S1105). Next, the extracted sample data is transmitted to the communication terminal 102 (step S 1106). And It is determined whether or not a music purchase command is received (step S1107).

Here, the music purchase command is electronic data transmitted from the communication terminal 102 when the user purchases music associated with the sample data. The user can send a music purchase command by operating the button, touch panel, or remote control of the communication terminal 102. If the music purchase command input by the user has not been received (step S1107: No), the process proceeds to step S1109.

On the other hand, when the music purchase command is received (step S1107: Yes), the music data associated with the sample data of the music is transmitted to the communication terminal 102 (step S1108). Next, it is determined whether an end command has been received (step S 1109). If the end command has not been received (step S1109: No), the process proceeds to step S1103, where it is determined whether there is a candidate for the music to be transmitted.

On the other hand, when an end command is received (step S 1109: Yes), a series of processing ends. Here, the end command is electronic data transmitted from the communication terminal 102 when the search for music is ended. The user can send an end command by operating the button, touch panel, or remote control of the communication terminal 102. In addition, with respect to a method for paying a fee when a song is purchased, for example, a fee for using the song search device 101 may be paid in advance, and the song may be downloaded after payment.

Next, the music search processing procedure shown in step S1102 of FIG. 11 will be described. FIG. 12 is a flowchart showing an example of the music search processing procedure shown in step S1102. In FIG. 11, when the music key word is received (step S1101: Yes), the music key word is converted into a numerical value with reference to the table 801 (step S1201). Here, the numerical value of the tune keyword is the feature amount specified by the table 801 and the value of the radius R. Next, an arbitrary identification number for identifying the music is set as i = l (step S 1202), and the feature quantity of the music Ai is specified with reference to the table 701 (step S 1203). Then, the numerical value converted in step S1201 and the feature quantity of the music piece Ai are plotted on the XY coordinate plane (step S1 204).

[0084] Next, whether the feature amount of the music piece Ai is included in the music tone area, that is, the coordinate value in the circle C It is determined whether or not (step S1205). If the feature amount is not included in the music tone area (step S1205: No), the process proceeds to step S1207. On the other hand, when the feature amount is included in the music tone area (step S1205: Yes), the music Ai is determined as a candidate (step S1206). Then, it is determined whether i = m (step S1207).

If i = m is not satisfied (step SI 207: No), i = i + 1 is set (step SI 208), and the process proceeds to step S 1203. On the other hand, if i = m (step S1207: Yes), it is determined whether there is a song owned by the user among the detected songs (step S1209). If there is no music owned by the user (step S1209: No), the process proceeds to step S1211.

On the other hand, if there is a song owned by the user (step S1209: Yes), the song owned by the user is excluded from the candidates (step S1210). Next, it is determined whether there is a song of the artist designated by the user among the song candidates (step S1211). If there is no music of the artist specified by the user (step SI 211: No), the process proceeds to step S1213.

On the other hand, when there is a song of the artist designated by the user (step S 1211: Yes), the song of the artist designated by the user is excluded from the candidates (step S1212). Then, it is determined whether there is a song of the same genre as the genre of the song owned by the user among the candidates (step S1213). If there is no music of the same genre as the music genre owned by the user (step S 1213: No), the process proceeds to step S 1215. On the other hand, if there is a song of the same genre as the music genre owned by the user (step S 121 3: Yes), select a song of the same genre as the genre of the song owned by the candidate's main user. Exclude (step S 1214).

[0088] Next, it is determined whether or not there is a song that has been reproduced in the past among the candidates (step S1215).

If there is no music played in the past (step S1215: No), the process proceeds to step S1103. On the other hand, if there is a song that has been played in the past (step S1215: Yes), the candidate's medium power also excludes the song that has been played in the past (step S1216), and the process proceeds to step S1103.

Further, in the above-described first embodiment, the example in which the music is purchased immediately after sample listening to the sample data has been described, but the purchase of the music is not limited to the above-described example. For example, when the communication terminal 102 is mounted on a mobile object such as a vehicle, Save the list to the communication terminal 102, and after the operation ends, purchase music by referring to the list.

As described above, according to the first embodiment, it is possible to search for a new piece of music that matches the user's preference and to audition the sample data. Therefore, it is possible to easily listen to the music that the user wants to listen to. If you like the sample data of the sample data you listened to, you can purchase it after listening to the sample data.

[0091] For example, when a heavy traffic jam occurs in the drive and the user gets tired of the music recorded on the magnetic disk 605 of the communication terminal 102 in the vehicle, the music search device 101 is suitable for the user's preference. It is possible to list music data of music style. Furthermore, music data that is not recorded on the magnetic disk 605 of the user's communication terminal 102 can be searched and restored. And if you like the song you've searched for, you can purchase it during a traffic jam. Therefore, the music can be obtained by effectively using the boarding time of the vehicle in a traffic jam without wasting it.

Example 2

Next, an example (Example 2) of the music search device 400 according to the second embodiment of the present invention will be described. In the first embodiment, the example in which the sample data of the music data is transmitted to the user's communication terminal 102 and the user listens and purchases the music corresponding to the sample data has been described. An example of searching for music that matches the user's preference will be described. In addition, the electronic program table has feature quantities of the music to be broadcast. Note that the hardware configuration of the music search device 400 according to the second embodiment is the same as that of the first embodiment described above, and a description thereof will be omitted. Further, since television broadcasting is the same method as radio broadcasting, the description thereof is omitted.

[0093] (Music Search Processing Procedure of Music Search Device)

Here, the music search processing procedure of the music search device 400 according to the second embodiment will be described. FIG. 13 is a flowchart of an example of a music search processing procedure of the music search device 400 according to the second embodiment. In FIG. 13, first, the music search device 400 determines whether or not the music tone designation has been accepted (step S1301). If designation of a tune is accepted (step S1301: Yes), it is determined whether an electronic program guide has already been received (steps 130). S 1302). If the electronic program guide has been received! (Step S1302: No), the process proceeds to step S1301. On the other hand, if the electronic program guide has been received (step S1302: Yes), the program that broadcasts the music having the specified musical tone is extracted (step S1303).

Next, it is determined whether there is a program candidate (step S 1304). If there is a candidate for a program (step S1304: Yes), the tuner frequency is set to the frequency of the extracted program (step S1305), the process proceeds to step S1303, and a new program is extracted after the program ends. To do. On the other hand, in step S1304, when there is a strong candidate for a program (step S1304: No), the absence of a program candidate is notified (step S1306). As a result, a series of processing ends.

In the flowchart described above, the force for determining whether or not the electronic yarn number and the table have already been received in step S1302. This determination may be performed, for example, before step S1301. This is because the electronic program guide only needs to be received when the program is extracted. Therefore, the electronic program guide may be received before the designation of the tune is accepted, or may be accepted immediately before the program is extracted.

[0096] Also, in the above-described step S1305, when setting the tuner frequency, if there are a plurality of program candidates, the tuner frequency may be set randomly. An early program may be set.

As described above, according to the second embodiment, it is possible to automatically set a tuner to a broadcast wave that broadcasts a musical piece that matches the user's preference. Therefore, the user can listen to the music that matches the user's preference without tuning himself. Further, when the music search device 400 is mounted on a vehicle, it is not necessary for the user to perform the tuning while driving, so that it is possible to drive safely.

As described above, according to the music search device according to the first and second embodiments, it is possible to search for music data of a music piece that the user wants to listen to. Therefore, a new piece of music that matches the user's preference can be easily listened to when the user wants to listen to it, and when the music search device is mounted on the vehicle, the user can drive safely.

Note that the music search method described in the present embodiment is implemented by executing a program prepared in advance on a computer such as a personal computer or a workstation. Can appear. This program is recorded on a computer-readable recording medium such as a hard disk, a flexible disk, a CD-ROM, an MO, and a DVD, and is executed by reading the recording medium force by a computer. The program may be a transmission medium that can be distributed via a network such as the Internet.

Claims

The scope of the claims

[1] a receiving means for receiving information on the tone specified by the user;

A search means for searching for music data of a song having a tone matching or related to the tone from a database storing the music data of the song when the receiving means receives information about the tone;

Transmitting means for transmitting the search results searched by the search means;

A music search apparatus comprising:

[2] The receiving means includes

Furthermore, the identification information regarding the music which the said user owns is received,

The search means includes

2. The music search device according to claim 1, further comprising: searching music data of music other than the music specified by the identification information related to the music received by the receiving means.

[3] The receiving means includes

Furthermore, receiving the identification information regarding the genre of the music that the user owns, the search means,

The music search device according to claim 1, further comprising: searching music data of music other than a genre specified by identification information relating to a genre received by the receiving means.

[4] The receiving means includes

Further, identification information regarding the artist designated by the user is received, and the search means includes

2. The music search apparatus according to claim 1, further comprising: searching music data of music related to a person other than the person specified by the identification information related to the artist received by the receiving means.

[5] The receiving means includes

Furthermore, receiving the playback history information of the music played by the user, the search means, 2. The music search apparatus according to claim 1, wherein music data of music other than music specified by the reproduction history information received by the receiving means is searched.

[6] The receiving means includes

And receiving the user identification information,

The search means includes

The music search device according to claim 1, further comprising a search based on the identification information received by the receiving means.

[7] The receiving means includes

Receiving information about the movement of the user;

The search means includes

Furthermore, it searches based on the information regarding the movement received by the said receiving means. The music search device as described in any one of Claims 1-6 characterized by the above-mentioned.

[8] A designation means for accepting designation of an arbitrary tune,

Search means for searching for a program that broadcasts a song having a tone matching or related to the tone specified by the specifying means from an electronic program guide related to radio broadcasting or television broadcasting;

Setting means for setting the frequency band of the broadcast wave of the radio broadcast or television broadcast to the frequency band of the program searched by the search means;

A music search apparatus comprising:

[9] A receiving process for receiving information on the tone specified by the user;

A search step of searching for music data of a song having a tone that matches or is related to the tone from a database storing the music data of the song when information on the tone is received by the receiving step;

A transmission step of transmitting the search results searched by the search step;

The music search method characterized by including.

[10] A designation process for accepting designation of an arbitrary tune,

Search for a program that broadcasts a song having a tone that matches or is related to the tone specified in the specifying step, from an electronic program guide related to radio broadcasting or television broadcasting. Search process,

A setting step for setting the frequency band of the broadcast wave of the radio broadcast or the television broadcast to the frequency band of the program searched by the search step;

The music search method characterized by including.

[11] A music search program that causes a computer to execute the music search method according to claim 9 or 10.

[12] A computer-readable recording medium in which the music search program according to claim 11 is recorded.