JP2006040338A5 - - Google Patents

Description

Music recording / playback device

The present invention relates to a music recording / reproducing apparatus, and more particularly, to a music recording / reproducing apparatus for efficiently erasing music data from a storage device such as an HDD (Hard Disk Drive).

  In recent years, large-capacity storage devices such as HDDs have become widespread, and data relating to a large number of songs (for example, thousands to 10,000 songs) can be stored in one storage device. For example, as shown in FIG. 8, data (hereinafter also referred to as song data) and TOC (Table Of Contents) information (for example, the number of songs) recorded in the HDD 1 on the CD 2-1 to CD 2 -n are stored in the HDD 1. As well as information about the CD (for example, the title name of the song album, the number of songs recorded, the total performance time of the recorded songs, the name of the singer, the song name and performance time of each song) • Genre is stored.

  Music data and TOC information may be read from CD2-1 to CD2-n and stored in the HDD 1. For example, music data is subjected to compression processing based on various formats, and the amount of data is reduced. Stored in the HDD 1. As for information relating to the CD, since there is a service organization 3 that provides the information, information provided from such a service organization 3 may be acquired and stored in the HDD 1. It can be determined from the number of recorded songs and the total performance time whether the information on the CD provided by the service organization 3 corresponds to which song data is stored in the HDD 1. The first information stored on the CD whose title name is “Large Invention” (16 songs, total performance time 51 minutes 12 seconds) is the second stored song data (CD2). 2 can be determined to correspond to the music data recorded in -2.

  A mass storage device such as an HDD is very convenient for storing a large amount of data. However, since a large amount of data can be stored, for example, it is conceivable that music data that is no longer listened to is stored in the HDD for a long period of time. In addition, if a large amount of such unnecessary data is stored in the HDD, the storage capacity is insufficient even if the capacity is large. For example, data such as music data is newly stored in the HDD. It will happen that you can't.

  In such a case, conventionally, the user has secured the storage capacity by manually deleting unnecessary data. However, it has never been easy to find music suitable for erasing from a large number of music, and it has been troublesome and requires a lot of time.

  Further, as described above, since it takes a lot of time and trouble to secure the storage capacity, it is difficult to immediately secure the free capacity. Therefore, when the storage capacity in the HDD is insufficient, the data cannot be stored in the HDD quickly. Therefore, various techniques for automatically selecting and erasing a device suitable for erasing without bothering the user are proposed.

  For example, Patent Document 1 below discloses a technique in which, when the storage capacity is insufficient, the oldest data is deleted in order. Old data is considered relatively less valuable than new data, but it is not absolute. For example, if you are a person who occasionally deletes unnecessary data, the data that remains in the storage device indefinitely even though it is old data may be important for that person. . In other words, age can be an indicator for selecting data suitable for erasure, but it is not absolute.

Patent Document 2 below discloses a technique for selecting data with a low reproduction frequency as data suitable for erasing based on the reproduction frequency. Data with low reproduction frequency is considered to be relatively less valuable than data with high reproduction frequency, but this is not absolute. For example, old data is considered to be relatively less frequently reproduced than new data, apart from the value. In other words, the reproduction frequency can be an index for selecting data suitable for erasure, but it is not absolute.
JP-A-8-305614 JP 2002-268923 A

Means for solving the problems and their effects

The present invention has been made in view of the above problems, and an object of the present invention is to provide a music recording / reproducing apparatus that can erase music data suitable for erasing from a storage device such as an HDD and efficiently secure a free space. It is said.

In order to achieve the above object, a music recording / reproducing apparatus (1) according to the present invention performs erasure processing for erasing music data suitable for erasure from music data stored in a storage device. In a music recording / playback apparatus comprising
In the information serving as an index of the deletion,
Information about the compression rate for each piece of music data,
Information about the data source for each piece of music data,
Information about the amount of data for each piece of music data,
Information about the last playback time for each song data,
Information about the artist for each song data,
Information regarding the number of times or frequency of reproduction of music data for each genre,
Information on the number of times or frequency of reproduction of music data for each artist,
Information on the number of times or frequency of reproduction of music data for each music album,
Information on the number of songs stored in the storage device for each song album;
Information on the number of songs stored in the storage device for each artist;
Information on the number of songs stored in the storage device for each genre is included, and the erasure unit performs the erasure process based on the information serving as the erasure index. It is characterized by what it does.

According to the music recording / reproducing apparatus (1), the erasure process (for example, the process of erasing music data in descending order of erasure priority) is performed based on the information serving as the erasure index. Further, the information serving as an index for erasing includes information on the compression rate for each piece of music data, information about the data source for each piece of music data, information about the data amount for each piece of music data, and information for each piece of music data Information about the last playback, information about the artist for each piece of music data, information about the genre of the music preferred by the user, information about the artist preferred by the user, information about the music album preferred by the user, and each music album Information on the number of songs stored in each storage device, information on the number of songs stored in the storage device for each artist, and information on the number of songs stored in the storage device for each genre And at least one piece of information is included.

<< Information on compression ratio for each music data >>
When it is desired to save the capacity of the storage device, the music data is compressed and the compressed data is stored in the storage device. If the compression rate is high, the amount of data decreases, but conversely the sound quality decreases. Therefore, when preferentially storing music data with good sound quality, based on the information about the compression rate for each music data, the music data with a low compression rate is left and the music data with a high compression rate is deleted. Just do it. Also, when it is desired to reduce the number of songs to be erased, the music data with a high compression rate is left based on the information about the compression rate for each piece of music data, and the music data with a low compression rate (that is, music data with a large amount of data). ) Should be deleted.

《Information about data source for each music data》
When the music data is stored in the storage device, the data source may be a recording medium such as a CD, a radio broadcast, a television broadcast, or the like. In general, music data obtained by reproducing a recording medium such as a CD has better sound quality than music data obtained from radio broadcast and television broadcast. Therefore, when preferentially storing music data with good sound quality, based on the information about the data source of each music data, the data source is a recording medium such as a CD, and the data source is a radio broadcast or television. What is necessary is just to delete what is broadcast.

  The storage priority may be changed based on information such as whether the data source is an album CD or a single CD. For example, if all music data having a certain album CD as a data source is erased, a free space can be efficiently secured. Also, if the music data based on the single CD is less valuable than the music data based on the album CD, the single CD is the single data than the data based on the album CD. What is necessary is to give priority to erasing a CD as a data source.

<< Information on the amount of data for each song data >>
When it is desired to secure the storage capacity, the number of songs to be erased is smaller when the song data having a larger amount of data is erased. Therefore, when it is desired to reduce the number of songs to be deleted, it is only necessary to delete songs having a large amount of data based on the information regarding the data amount for each piece of music data. On the contrary, when the data amount is very small (for example, the reproduction time is less than 30 seconds) and the value to be stored is low, the information regarding the data amount for each piece of music data is included. Based on this, it is preferable to delete the data with priority.

《Information about the last playback for each song data》
It is highly likely that the user likes a song that is new at the time of final playback (that is, a song that has been recently listened to), and conversely, a song that is old at the time of final playback is highly likely not to be preferred by the user. Therefore, in the case of preferentially saving what the user likes, it is only necessary to preferentially delete the oldest reproduction time based on the information related to the final reproduction time for each piece of music data. .

  Also, if you are a person who occasionally deletes unnecessary music data, the music data that remains in the storage device indefinitely, even though you have not listened to it for a long time, is important for that person. Is also possible. For this reason, when preferentially storing such information important for the user, the oldest playback time should be preferentially stored based on the information about the final playback time for each piece of music data. It ’s fine. In addition, in the case of a user who may delete a recently listened one, the new one at the time of final reproduction may be deleted preferentially.

《Information about artists for each song data》
Each user has a preference, such as some people prefer male artists and some people prefer female artists. Therefore, when the user likes a male artist, the music data of the female artist is preferentially deleted based on the information (for example, gender information) about the artist for each music data, and vice versa. If the user likes female artists, the music data of male artists may be deleted preferentially.

<< Information on the number of times or frequency of reproduction of music data for each genre >>
There is a high possibility that the user likes the one with a large number of times of reproduction or the one with a high reproduction frequency. Therefore, when preferentially storing music data of a genre preferred by the user, the genre having a high frequency of reproduction or a genre having a high frequency of reproduction is based on the information on the frequency of reproduction or frequency of reproduction of the music data for each genre. The music data may be preferentially stored, and the music data of a genre with a small number of reproductions or a genre with a low reproduction frequency may be preferentially deleted.

  Contrary to this, there is a possibility that the user is tired of listening to those with a very large number of reproductions or those with a very high reproduction frequency. Therefore, when music data of a genre that the user is tired of listening to is deleted preferentially, a genre or playback with a very large number of playbacks is performed based on information on the number of playbacks or playback frequency of the music data for each genre. The music data of a genre with a very high frequency may be deleted preferentially.

<< Information on the number of times or frequency of reproduction of music data for each artist (or music album) >>
Similarly to the above, when the music data of the artist (or music album) preferred by the user is preferentially stored, it is based on the information regarding the number of times or frequency of reproduction of the music data for each artist (or music album). The music data of an artist (or song album) with a high number of playbacks or an artist (or song album) with a high playback frequency is preferentially stored, and an artist (or song album) with a low playback frequency or an artist (or a song with low playback frequency) (or The music data of the music album) may be deleted preferentially.

  When the music data of an artist (or music album) that the user is tired of is deleted with priority, playback is performed based on the information on the number of times or frequency of playback of music data for each artist (or music album). The music data of an artist (or music album) having a very high frequency or an artist (or music album) having a very high reproduction frequency may be deleted preferentially.

<< Information on the number of songs stored in the storage device for each song album >>
The number of songs included in the song album is not uniform. If the amount of data per song is the same, the latter has a larger amount of data in the song album containing 10 songs and the song album containing 11 songs. Therefore, when it is desired to efficiently secure a free space, based on the information on the number of songs stored in the storage device for each song album, a song whose data source is a song album with a large number of recorded songs What is necessary is just to delete data.

<< Information on the number of songs stored in the storage device for each artist >>
When a lot of music data of an artist in the storage device is stored, there is a high possibility that the user likes the artist. Therefore, in the case of preferentially storing the music data of the artist that the user likes, it is not much stored in the storage device based on the information regarding the number of songs stored in the storage device for each artist. It is sufficient to delete the music data of an artist who has no priority.

  On the contrary, in the case of preferentially storing the music data of the artist that is not so much stored in the storage device, it is based on the information regarding the number of songs stored in the storage device for each artist. The music data of artists stored in the storage device may be deleted preferentially.

<< Information on the number of songs stored in the storage device for each genre >>
Similarly to the above, when the music data of the genre preferred by the user is preferentially stored, the storage device is not much based on the information on the number of songs stored in the storage device for each genre. What is necessary is to preferentially delete music data of a genre that is not stored.

  In addition, when preferentially storing music data of a genre that is not often stored in the storage device, a large amount of music data is stored in the storage device based on information on the number of songs stored in the storage device for each genre. The stored music data of the genre may be deleted preferentially.

  As described above, the information used as the erasure index includes information on the compression rate for each piece of music data, information on the data source for each piece of music data, information on the amount of data for each piece of music data, and the final information for each piece of music data. Information related to playback, information related to the artist for each piece of music data, information related to the number of playbacks or playback frequency of the music data for each genre, information about the number of playbacks or playback frequency of the music data for each artist, music for each song album Information on the number of reproductions of data or reproduction frequency, information on the number of songs stored in the storage device for each song album, information on the number of songs stored in the storage device for each artist, the information for each genre Erasing from the storage device by using information about the number of songs stored in the storage device Clear the appropriate music data, it is possible to efficiently secure a free space.

The music recording / playback apparatus (2) according to the present invention is characterized in that in the music recording / playback apparatus (1), the information serving as the erasure index includes two or more different information.

Further, according to the music recording / reproducing apparatus (2), since the information serving as the erasure index includes two or more different pieces of information, the music data suitable for erasure is more appropriately selected and erased. be able to. For example, based on information related to the compression rate for each piece of music data, those with poor sound quality are narrowed down as erasure targets. The data can be deleted in order.

In addition, the music recording / reproducing apparatus (3) according to the present invention includes a music recording device provided with an erasing unit for performing an erasing process for erasing music data suitable for erasing from music data stored in the storage device. In the playback device, the information that serves as the erasure index includes information about the age stored in the storage device for each piece of music data, and information different from the information, and the erasing means includes: The erasing process is performed based on information serving as an erasing index.

According to the music recording / reproducing apparatus (3), the erasure process (for example, the process of erasing music data in descending order of erasure priority) is performed based on the information serving as the erasure index. In addition, the information that serves as the erasure index includes information about the age stored in the storage device for each piece of music data.

  Those that have been stored for a long time since being stored in the storage device are more likely to be less valuable to be stored in the storage device than those that are newly stored. Therefore, in the case of erasing data with low value preferentially, the process since being stored in the storage device based on the information about the age stored in the storage device for each piece of music data What has to be deleted is given priority when the time is long.

  In addition, if the person who occasionally performs the work of erasing unnecessary music data, the music data that remains in the storage device indefinitely even though a long period has elapsed since being stored in the storage device, Conversely, it may be important for that person. Therefore, in the case of preferentially storing such an important item for the user, based on information about the age stored in the storage device for each piece of music data, What is necessary is to preferentially store those whose elapsed time is a predetermined time or more.

According to the music recording / reproducing apparatus (3), the information serving as the erasure index includes not only information relating to the age stored in the storage device for each piece of music data, but also information other than the information. Therefore, for example, based on the information about the oldness, narrowing down the objects that have passed the predetermined time since being stored in the storage device as a target for erasing, and from narrowing down Based on the other information (for example, information related to the last reproduction time for each piece of music data), the last reproduction time can be erased in order from the oldest music data.

  Therefore, instead of simply erasing from the oldest data, or simply erasing from the oldest data at the time of final playback, it is possible to erase data in the order of higher erasure priority from those satisfying the predetermined erasure conditions. The music data suitable for erasure can be appropriately selected and erased.

In addition, the music recording / reproducing apparatus (4) according to the present invention includes, in the music recording / reproducing apparatus (3), information that serves as an index for erasure as the other information.
Information about the compression rate for each piece of music data,
Information about the data source for each piece of music data,
Information about the amount of data for each piece of music data,
Information about the last playback time for each song data,
Information about the artist for each song data,
Information regarding the number of times or frequency of reproduction of music data for each genre,
Information on the number of times or frequency of reproduction of music data for each artist,
Information on the number of times or frequency of reproduction of music data for each music album,
Information on the number of songs stored in the storage device for each song album;
Information on the number of songs stored in the storage device for each artist;
It is characterized in that at least one piece of information on the number of songs stored in the storage device for each genre is included.

As described above, as information that serves as the erasure index, information about the compression rate for each piece of music data, information about the data source for each piece of music data, information about the amount of data for each piece of music data, information for each piece of music data Information about the last playback, information about the artist for each piece of music data, information about the number of playbacks or playback frequency of music data for each genre, information about the number of playbacks or playback frequency of music data for each artist, information for each song album Information about the number of times or frequency of reproduction of music data, information about the number of songs stored in the storage device for each song album, information about the number of songs stored in the storage device for each artist, information for each genre Erasing from the storage device by using information about the number of songs stored in the storage device Clear the appropriate music data that can be efficiently enough free space. Therefore, according to the music recording / reproducing apparatus (4), music data suitable for erasure can be selected and erased more appropriately.

In the music recording / reproducing apparatus (5) according to the present invention, in any one of the music recording / reproducing apparatuses (1) to (4), the erasing unit uses the erasing process as information for the erasing index. It is characterized in that it is erased from music data with a high erasure priority determined based on it.
According to the music recording / reproducing apparatus (5), since it is erased from music data having a high erasure priority, a free space can be secured without bothering the user.

Moreover, the music recording / reproducing apparatus (6) according to the present invention is the music recording / reproducing apparatus (1) to (4), wherein the erasing means uses identification information for identifying music data as the erasing process. In addition, the information is introduced to the user in the order of the deletion priority obtained based on the information used as the deletion index, and the music data identified by the identification information selected by the user is deleted. Yes.

According to the music recording / reproducing apparatus (6), identification information for identifying music data is introduced (for example, displayed) to the user in the order of deletion priority, so that the user can select music data suitable for deletion. It can be selected efficiently. Therefore, it is possible to efficiently secure a free capacity.

Moreover, the music recording / reproducing apparatus (7) according to the present invention is the music recording / reproducing apparatus (1) to (4), wherein the erasing means uses identification information for identifying music data as the erasing process. The music data is displayed together with the information that serves as an index for erasure, and the music data identified by the identification information selected by the user is erased.

According to the music recording / reproducing apparatus (7), the user can efficiently obtain music data suitable for erasure by visually recognizing information that serves as the erasure index (for example, information on the last reproduction time for each piece of music data). You can choose well. Therefore, it is possible to efficiently secure a free capacity.

In the music recording / reproducing apparatus (8) according to the present invention, in any one of the music recording / reproducing apparatuses (2) to (4), the erasing unit may be a predetermined index serving as the erasing index as the erasing process. The music data satisfying a predetermined erasure condition determined based on the information is erased from the one having a high erasure priority obtained based on the information serving as the erasure index different from the predetermined information. It is characterized by.

According to the music recording / reproducing apparatus (8), the objects to be erased are narrowed down, and those with high erase priority are erased. Therefore, the erasure target is narrowed down instead of simply erasing from the one with the highest erasure priority, and it is possible to more appropriately select the one suitable for erasing and erase it.

Moreover, the music recording / reproducing apparatus (9) according to the present invention is the music recording / reproducing apparatus (1) to (8), wherein the erasing process by the erasing means is performed based on the free capacity of the storage device. It is configured to be executed.

According to the music recording / reproducing apparatus (9), the erasing process is performed by the erasing unit based on the free capacity of the storage device. For example, the free capacity is equal to or less than a predetermined value. In such a case, music data suitable for erasure can be automatically erased.

Embodiments of a music recording / playback apparatus according to the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram schematically showing a main part of an audio system including a music recording / playback apparatus according to Embodiment (1).

  In the figure, reference numeral 11 denotes an audio apparatus which is a main part of the audio system. The audio apparatus 11 includes a controller 12 having a CPU and the like, and a broadcast receiver 14 for receiving a television / radio broadcast via an antenna 13. A CD drive 16 for reading music data (music data itself) and TOC information from the music CD 15, a remote controller 17 having button switches, a display 18 having a display screen as a touch panel, and audio data. The amplifier 19 is configured to include an amplifier 19 and a speaker 20 that outputs the amplified audio data as audio.

  The controller 12 is composed of a magnetic disk (not shown), and can read and write data, and is connected to an HDD 21 in which various data such as music data and data related to music information are stored. A mobile communication device 22 such as a mobile phone connected to the controller 12 is used for receiving information from a server (not shown), and the controller 12 receives information from the server via the mobile communication device 22. Information (for example, information related to music) can be acquired. In addition, what stores these data is not limited to HDD 21, For example, even if it uses large capacity recording media, such as DVD, it is realizable suitably.

  The controller 12 outputs the music data received by the broadcast receiver 14 or the music data restored by the CD drive 16 as sound from the speaker 20, or compresses the music data with a predetermined compression method and a predetermined compression rate. Thus, the compressed music data can be stored in the HDD 21. The compression rate can be freely set by the user operating the remote controller 17 or operating the touch panel of the display 18, for example, rates 1 to 3 (rate 1: the highest compression rate). Can be set freely.

  FIG. 2 is a diagram showing a part of music data stored in the HDD 21 and data related to the music information, and the music data recorded in the HDD 21 on CD2-1 to CD2-n (see FIG. 8). And TOC information (for example, the number of songs recorded on the CD and the total performance time) are stored, and further information on the CD (for example, the title name, the number of recorded songs, the total number of recorded songs) Data on performance time, singer name, gender of the singer, date of release, song name, performance time, and genre of each recorded song is stored.

  The music data and the data related to the TOC information may be read out from the CD2-1 to CD2-n and stored in the HDD 21. The information related to the CD (that is, the music information) is provided by an organization (server) ) And the like using the mobile communication device 22 and stored in the HDD 21. In addition, it can be judged from the number of recorded songs and the total performance time whether the information on the CD provided by the institution corresponds to which song data is stored in the HDD 21, for example, The first information stored on the CD whose title name is “Large Invention” (16 songs, total performance time 51 minutes 12 seconds) is the second stored song data (CD2- 2 can be determined to correspond to the music data recorded in No. 2, music No. 15 to No. 30). In addition, as for the music information of music data that is not a CD but a TV broadcast or a radio broadcast, the data input by the user can be stored in the HDD 21.

  Further, as shown in FIG. 3, the HDD 21 stores the song name, artist name (singer name), gender of the artist, date of compression, compression rate, data source, data source for each piece of music data. The information on the title name of the album CD, the data amount (reproduction time), the last reproduction, and the deletion item (0: not deleted, 1: deleted) indicating whether or not the music data has been deleted is stored. As shown in FIG. 4, the HDD 21 stores information related to the reproduction history of music data.

  The compression rate of the music data can be grasped from the rates 1 to 3 set by the user, and the data source (from broadcasting or from CD) is determined by the broadcast receiver 14 and the CD drive 16. It can be known from which source the data was taken from, and the data amount can be known from the reproduction time. Further, the time of the last reproduction of the music data can be known from information relating to the reproduction history.

The processing operation [1] performed by the controller 12 of the audio apparatus 11 constituting the audio system, which includes the music recording / playback apparatus according to the embodiment (1), will be described based on the flowchart shown in FIG. This processing operation [1] is an operation performed when the user instructs to store music data in the HDD 21 by operating the remote controller 17 or touching the touch panel of the display 18. .

  First, it is determined whether or not the free capacity of the HDD 21 is equal to or smaller than the predetermined capacity c (step S1). If it is determined that the free capacity of the HDD 21 is equal to or smaller than the predetermined capacity c, information serving as an index for erasure is obtained. As shown in FIG. 3, predetermined deletion conditions (for example, HDD 21) determined based on information about the age stored in the HDD 21 for each piece of music data (that is, information related to the date stored in the HDD 21). Among the music data satisfying that the elapsed period from being stored in the record data is equal to or longer than a predetermined period), the information that is an index of the erasure different from the information about the age (for example, as shown in FIG. 3 A search is made for the one having the highest erasure priority obtained based on the compression rate for each piece of music data (step S2).

  Next, based on the search result, the music data having the highest erasure priority (for example, the one having the highest compression rate) is erased from the HDD 21 among the music data satisfying the predetermined erasure condition (step S3). The deletion item (see FIG. 3) included in the music information corresponding to the music data thus set is set to “1” (step S4). For those having the same erasure priority, priority is given to those having a long elapsed time since being stored in the HDD 21 based on the information about the age used to determine whether or not the predetermined erasure condition is satisfied. To erase.

  After the music data erasing process, it is determined again whether or not the free capacity of the HDD 21 is equal to or smaller than the predetermined capacity c (step S5). Then, the normal music data storage process is performed (step S6). On the other hand, if it is determined that the free capacity of the HDD 21 is still less than or equal to the predetermined capacity c, the process returns to step S2 and the music data erasing process is performed again.

  If it is determined in step S1 that the free capacity of the HDD 21 is not less than or equal to the predetermined capacity c (that is, if a free capacity of a certain value or more is secured), it is necessary to delete the music data. Since there is no step, steps S2 to S5 are skipped, and the process proceeds to step S6 as it is, and normal music data storage processing is performed.

According to the audio system configured to include the music recording / playback apparatus according to the above embodiment (1), the erasure target is narrowed down based on the information about the age stored in the HDD 21 for each music data. Among those narrowed down, those with a high deletion priority are deleted. Therefore, it is possible to appropriately select and erase music data suitable for erasure.

In the audio system including the music recording / playback apparatus according to the embodiment (1), the music data satisfying the predetermined erasure condition has a high compression rate (relatively poor sound quality). However, in another embodiment, a low compression ratio (a large amount of data) may have a high deletion priority. It is desirable that the user can freely set this.

Further, in the audio system configured to include the music recording / playback device according to the above embodiment (1), based on the information on the compression rate for each music data from the music data satisfying the predetermined erasure condition. The required deletion priority is deleted in order, but the information used for calculating the deletion priority is not limited to this, and in another embodiment, the data for each piece of music data Information about the original, information about the amount of data for each piece of music data, information about the last playback time for each piece of music data, information about the artist for each piece of music data, information about the number of playbacks or the frequency of playback of music data for each genre, Information on the number of times or frequency of reproduction of music data for each artist, on the number of times or frequency of reproduction of music data for each music album Information, information about the number of songs stored in the HDD 21 for each song album, information about the number of songs stored in the HDD 21 for each artist, information about the number of songs stored in the HDD 21 for each genre, etc. You may do it.

  Furthermore, in another embodiment, two or more different pieces of information may be used. For example, the deletion priority (for example, three levels of levels La1 to La3) obtained based on information about the compression rate for each piece of music data ) And the deletion priority (for example, three levels Lb1 to Lb3) obtained based on the information relating to the data source for each piece of music data (for example, levels 9 to 9 of levels L1 to L9). Stage) may be adopted.

  FIG. 3 shows information relating to the data source for each piece of music data, information relating to the amount of data for each piece of music data, information relating to the last playback time for each piece of music data, and information relating to the artist for each piece of music data. Thus, it is obtained from the music information for each music data stored in the HDD 21.

  Also, for information on the number of times or frequency of reproduction of music data for each genre, information about the number of times or frequency of reproduction of music data for each artist, and information about the number of times or frequency of reproduction of music data for each music album 4 is obtained from the information related to the reproduction history of the music data stored in the HDD 21 as shown in FIG. 4 and the music information as shown in FIG. Also, information on the number of songs stored in the HDD 21 for each song album, information on the number of songs stored in the HDD 21 for each artist, and information on the number of songs stored in the HDD 21 for each genre. As shown in FIG. 3, it can be obtained from the music information for each music data stored in the HDD 21.

Next, an audio system including the music recording / playback device according to Embodiment (2) will be described. However, since this audio system has the same configuration as that of the audio system shown in FIG. 1 except for the audio device 11 and the controller 12, the audio device and the controller are denoted by different reference numerals, and description of other components will be given. Omitted.

  The audio device 11A includes a controller 12A having a CPU, a broadcast receiver 14, a CD drive 16, a remote controller 17, a display 18, an amplifier 19, and a speaker 20. Further, the HDD 12 and the mobile communication device 22 are connected to the controller 12A.

  The controller 12A outputs the music data received by the broadcast receiver 14 or the music data restored by the CD drive 16 as sound from the speaker 20, or compresses the music data with a predetermined compression method and a predetermined compression rate. Thus, the compressed music data can be stored in the HDD 21. The compression rate can be freely set by the user operating the remote controller 17 or operating the touch panel of the display 18, for example, rates 1 to 3 (rate 1: the highest compression rate). Can be set freely.

A processing operation [2] performed by the controller 12A of the audio apparatus 11A that constitutes the audio system and that includes the music recording / playback apparatus according to the embodiment (2) will be described based on the flowchart shown in FIG. This processing operation [2] is an operation performed when the user instructs to store music data in the HDD 21 by operating the remote controller 17 or touching the touch panel of the display 18. .

  First, it is determined whether or not the free capacity of the HDD 21 is equal to or smaller than the predetermined capacity c (step S11). If it is determined that the free capacity of the HDD 21 is equal to or smaller than the predetermined capacity c, information serving as an index for erasure is obtained. As shown in FIG. 3, predetermined deletion conditions (for example, HDD 21) determined based on information about the age stored in the HDD 21 for each piece of music data (that is, information related to the date stored in the HDD 21). The music name and artist name of the music data satisfying that the elapsed period from the time of being stored in (1) is equal to or longer than a predetermined period) is information that serves as an index for erasure different from the information about the age (for example, FIG. 3). As shown in Fig. 4, the data sources for each piece of music data are deleted in descending order of priority for deletion (for example, data sources that are TV / radio broadcasts are deleted). The highest priority is given, the next highest is the data source is a single CD, and the lowest erase priority is the data source is an album CD) displayed on the display 18 (step S12). ). For those having the same erasure priority, erasure priority is given to those having a long elapsed time since being stored in the HDD 21 based on the information about the age used to determine whether or not the predetermined erasure condition is satisfied. It is treated as a high degree.

  Next, through the display screen displayed on the display 18, it is determined whether or not the user has selected a song (step S13). If it is determined that the user has selected a song, the song selected by the user is selected. Is deleted from the HDD 21 (step S14), and the deletion item (see FIG. 3) included in the music information corresponding to the deleted music data is set to “1” (step S15).

  After the music data erasing process, it is determined again whether or not the free capacity of the HDD 21 is equal to or smaller than the predetermined capacity c (step S16), and the free capacity of the HDD 21 is not equal to or smaller than the predetermined capacity c (that is, a certain value or more). Next, the display of the music name and artist name is erased from the display 18 (step S17), and then the normal music data storage process is performed (step S17). Step S18). On the other hand, if it is determined that the free capacity of the HDD 21 is still less than or equal to the predetermined capacity c, the process returns to step S13 and the music data erasure process is performed again.

  If it is determined in step S11 that the free capacity of the HDD 21 is not less than or equal to the predetermined capacity c (that is, if a free capacity of a certain value or more is secured), it is necessary to delete the music data. Since there is no step, steps S12 to S17 are skipped, and the process proceeds to step S18 as it is to perform normal music data storage processing.

According to the audio system including the music recording / playback apparatus according to the above embodiment (2), the erasure target is narrowed down based on the information about the age stored in the HDD 21 for each music data. Identification information for identifying the narrowed-down music data (here, music name and artist name) is displayed in descending order of deletion priority. As a result, the user can efficiently and appropriately select music data suitable for erasure.

In the audio system including the music recording / playback device according to the above embodiment (2), the data source is a television / radio broadcast, and the next highest one is the deletion priority. The data source is assumed to be a single CD, and the data source having the lowest erasure priority is assumed to be an album CD. However, the setting of the erasure priority is not limited to this, and in another embodiment, for example, The data source of the album CD may have a higher erasure priority than the data source of the single CD. Note that it is desirable that the user can freely set the deletion priority.

Also, in the audio system configured to include the music recording / playback apparatus according to the above embodiment (2), based on the information on the data source for each music data out of the music data satisfying the predetermined erasure condition. The required deletion priority is deleted in order, but the information used for calculating the deletion priority is not limited to this, and in another embodiment, compression for each piece of music data is performed. Information about the rate, information about the amount of data for each piece of music data, information about the last playback time for each piece of music data, information about the artist for each piece of music data, information about the number of playbacks or the playback frequency of music data for each genre, Information on the number of times or frequency of reproduction of music data for each artist, on the number of times or frequency of reproduction of music data for each music album Information, information about the number of songs stored in the HDD 21 for each song album, information about the number of songs stored in the HDD 21 for each artist, information about the number of songs stored in the HDD 21 for each genre, etc. You may do it.

  Further, in another embodiment, two or more different pieces of information may be used. For example, the deletion priority (for example, three levels of levels La1 to La3) obtained based on the information about the data source for each piece of music data ) And the deletion priority (for example, three levels Lb1 to Lb3) obtained based on the information on the compression rate for each piece of music data (for example, levels 9 to 9 of levels L1 to L9). Stage) may be adopted.

Next, an audio system including the music recording / playback device according to Embodiment (3) will be described. However, since this audio system has the same configuration as that of the audio system shown in FIG. 1 except for the audio device 11 and the controller 12, the audio device and the controller are denoted by different reference numerals, and description of other components will be given. Omitted.

  The audio device 11B includes a controller 12B having a CPU, a broadcast receiver 14, a CD drive 16, a remote controller 17, a display 18, an amplifier 19, and a speaker 20. Further, the HDD 12 and the mobile communication device 22 are connected to the controller 12B.

  The controller 12B outputs the music data received by the broadcast receiver 14 or the music data restored by the CD drive 16 as sound from the speaker 20, or compresses the music data with a predetermined compression method and a predetermined compression rate. Thus, the compressed music data can be stored in the HDD 21. The compression rate can be freely set by the user operating the remote controller 17 or operating the touch panel of the display 18, for example, rates 1 to 3 (rate 1: the highest compression rate). Can be set freely.

The processing operation [3] performed by the controller 12B of the audio apparatus 11B that configures the audio system and that includes the music recording / playback apparatus according to the embodiment (3) will be described based on the flowchart shown in FIG. This processing operation [3] is an operation performed when the user instructs to store the music data in the HDD 21 by operating the remote controller 17 or touching the touch panel of the display 18. .

  First, it is determined whether or not the free capacity of the HDD 21 is equal to or smaller than the predetermined capacity c (step S21). If it is determined that the free capacity of the HDD 21 is equal to or smaller than the predetermined capacity c, information serving as an index for erasure is obtained. As shown in FIG. 3, predetermined deletion conditions (for example, HDD 21) determined based on information about the age stored in the HDD 21 for each piece of music data (that is, information related to the date stored in the HDD 21). The music name and artist name of the music data satisfying that the elapsed period from the time of being stored in (1) is equal to or longer than a predetermined period) is information that serves as an index for erasure different from the information about the age (for example, FIG. 3). And the information on the last reproduction time for each piece of music data as shown in FIG. 6 is displayed on the display 18 (step S22).

  In another embodiment, song names and artist names may be displayed in descending order of deletion priority obtained based on the information used as another deletion index. For those having the same erasure priority, erasure priority is given to those having a long elapsed time since being stored in the HDD 21 based on the information about the age used to determine whether or not the predetermined erasure condition is satisfied. It should be treated as a high degree.

  Next, through the display screen displayed on the display 18, it is determined whether or not a song has been selected by the user (step S23), and if it is determined that the song has been selected by the user, the song selected by the user. Is deleted from the HDD 21 (step S24), and the deletion item (see FIG. 3) included in the music information corresponding to the deleted music data is set to “1” (step S25).

  After the music data erasing process, it is determined again whether or not the free capacity of the HDD 21 is equal to or smaller than the predetermined capacity c (step S26), and the free capacity of the HDD 21 is not equal to or smaller than the predetermined capacity c (that is, a certain value or more). Next, the display of the music name and artist name is erased from the display 18 (step S27), and then normal music data storage processing is performed (step S27). Step S28). On the other hand, if it is determined that the free capacity of the HDD 21 is still less than or equal to the predetermined capacity c, the process returns to step S23 and the music data erasure process is performed again.

  If it is determined in step S21 that the free capacity of the HDD 21 is not less than or equal to the predetermined capacity c (that is, if a free capacity of a certain value or more is secured), it is necessary to delete the music data. Since there is not, step S22-S27 is skipped and it progresses to step S28 as it is, and the memory | storage process of normal music data is performed.

According to the audio system configured to include the music recording / playback apparatus according to the above embodiment (3), the erasure target is narrowed down based on the information about the age stored in the HDD 21 for each music data. The identification information (here, song name and artist name) for identifying the narrowed-down song data is displayed together with information (here, information relating to the last reproduction) as an index for deletion. As a result, the user can efficiently and appropriately select music data suitable for erasure.

Further, in the audio system configured to include the music recording / playback apparatus according to the above embodiment (3), as information serving as an erasure index to be displayed together with identification information for identifying music data, Although information related to the time of final reproduction is adopted, the information displayed together with the identification information is not limited to this. In another embodiment, information related to the compression rate for each piece of music data, and each piece of music data Information about each data source, information about the amount of data for each piece of music data, information about the artist for each piece of music data, information about the number of reproductions or frequency of reproduction of music data for each genre, number of times of reproduction of music data for each artist Or information regarding the playback frequency, information regarding the number of times or the playback frequency of the music data for each music album, HD for each music album Information about the number of music stored in the 21, HDD 21 information on the number of music stored in the each artist, may be employed as HDD 21 information on the number of music stored in the respective genre.

  Further, in another embodiment, two or more different pieces of information may be used. For example, the deletion priority (for example, levels La1 to La3 3) obtained based on information related to the last reproduction time for each piece of music data. Stage) and the deletion priority (for example, levels Lb1 to Lb3) obtained based on the information on the compression rate for each piece of music data (for example, levels L1 to L9). (9 steps) may be adopted.

Further, in the audio system configured to include the music recording / playback apparatus according to the above embodiments (1) to (3), the age stored in the HDD 21 for each music data is set in order to narrow down the erasure target. Although predetermined erasure conditions determined based on information are adopted, information used for narrowing down erasure targets is not limited to this, and in another embodiment, the compression rate for each piece of music data Information, information about the data source for each piece of music data, information about the amount of data for each piece of music data, information about the last playback time for each piece of music data, information about the artist for each piece of music data, music data for each genre Information on the number of playbacks or playback frequency, information on the number of playbacks or playback frequency of music data for each artist, and reproduction of music data for each music album Information about the number of times or the reproduction frequency, information about the number of songs stored in the HDD 21 for each song album, information about the number of songs stored in the HDD 21 for each artist, number of songs stored in the HDD 21 for each genre Information related to this may be used.

  Further, in another embodiment, two or more different pieces of information may be used. For example, information about the age stored in the HDD 21 for each piece of music data, information about the last reproduction time for each piece of music data, and Based on the above, a song whose elapsed time since being stored in the HDD 21 is a predetermined period (for example, 2 years) or more and whose elapsed time from the last reproduction is a predetermined period (for example, 6 months) or more Data may be deleted.

It is the block diagram which showed roughly the principal part of the audio system comprised including the music recording / reproducing apparatus concerning Embodiment (1) of this invention. It is the figure which showed a part of data memorize | stored in HDD. It is the figure which showed a part of data memorize | stored in HDD. It is the figure which showed a part of data memorize | stored in HDD. It is the flowchart which showed the processing operation performed with the controller of the audio apparatus in the audio system comprised including the music recording / reproducing apparatus which concerns on embodiment (1). It is the flowchart which showed the processing operation performed with the controller of the audio apparatus in the audio system comprised including the music recording / reproducing apparatus which concerns on Embodiment (2). It is the flowchart which showed the processing operation performed with the controller of the audio apparatus in the audio system comprised including the music recording / reproducing apparatus which concerns on embodiment (3). It is the figure which showed a part of data memorize | stored in HDD.

Explanation of symbols

11, 11A, 11B Audio device 12, 12A, 12B Controller 14 Broadcast receiver 16 CD drive 18 Display 21 HDD

Claims (6)

In a music recording / playback apparatus capable of playing back music data stored in a storage means,
Selecting means for selecting music data satisfying the first erasure condition and the second erasure condition from the music data stored in the storage means;
An apparatus for recording and reproducing music, comprising: erasure means for erasing the music data selected by the selection means from the storage means. When a plurality of song data to be deleted candidates are selected by the selection means,
The music data that satisfies the first erasure condition, the second erasure condition, and the third erasure condition is preferentially erased from the storage means. Music recording and playback device. In a music recording / playback apparatus capable of playing back music data stored in a storage means,
Narrowing means for narrowing down the music data to be erased based on the erasure conditions;
And erasing means for erasing music data having a high erasure priority from the storage means based on a predetermined erasure priority among the music data narrowed down by the narrowing means. Music recording / playback device. In a music recording / playback apparatus capable of playing back music data stored in a storage means,
A setting means for setting an erasure index for erasing music data is provided.
The storage means stores information that serves as an index for the deletion,
An apparatus for recording and reproducing music, comprising: erasure means for erasing music data satisfying an erasure condition based on an erasure index set by the setting means from the storage means. In a music recording / playback apparatus capable of playing back music data stored in a storage means,
Selection means for selecting music data that satisfies the erasure condition from music data stored in the storage means;
Presenting means for presenting the identification information of the music data selected by the selecting means to the user based on the deletion priority;
Selecting means for selecting identification information corresponding to the music data to be deleted from the identification information presented by the presenting means;
An apparatus for recording and reproducing music, comprising: erasure means for erasing music data corresponding to the identification information selected by the selection means from the storage means. The presenting means, together with the music data identification information selected by the selecting means,
6. The music recording / reproducing apparatus according to claim 5, wherein information serving as an index for erasing the music data is presented.