JP2006139837A - Music data recording apparatus and method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To accelerate recording, when additionally recording piece information to be recorded with music data. <P>SOLUTION: In the case of recording the music data and piece information in a hard disk device 2, an area 22 in which the music data is recorded and an area 23 in which the piece information is recorded are made to be different areas. When additionally recording new piece information of music data whose piece information has not yet been recorded, when the content of a piece data recording part 21 is updated, only the content of the information recording part 23 is updated, and the content of the music data recording part 22 in which the music data is recorded will not be updated. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a music data recording apparatus and recording method for recording music data, and more particularly to a music data recording apparatus and recording method for recording music data with music information added thereto.

  Conventionally, when music data recorded on a recording medium such as a CD is recorded on a recording device such as an HDD, the music information is added to the music data by referring to a database storing the music information of the music data. An apparatus for recording data is known (see Patent Document 1). In this conventional apparatus, when the music information of the music data to be recorded does not exist in the database, the recording location of the music data is recorded in the memory, the contents of the database are updated, and the music information is added. Then, the recording location of the music data to which no music information is added is read from the memory, and the music information is added to the music data and recorded again.

JP 2004-185770 A

  However, in the conventional apparatus, when the music information of the music data to which the music information was not added is newly recorded by updating the contents of the database, the music data must be recorded again. There was a problem that time became long.

  The audio data recording apparatus and audio data recording method according to the present invention record music data and music information together with music data, and record music data and music information separately. When recording music data, if there is music information corresponding to the music data to be recorded in the music information storage device in which a plurality of music information of the music data is stored, the music information is recorded. When the content of the music information stored in the music information storage device is updated, the music information of the music data for which no music information is recorded is searched for in the music information storage device. Is characterized in that the music information is recorded.

  According to the audio data recording device and the audio data recording method of the present invention, the music data and the music information are separately recorded, and the contents of the music information storage device in which a plurality of pieces of music data are stored are updated. At this time, since only the contents of the area in which the music information is recorded are updated, the information recording time when updating the contents of the music information storage device can be shortened.

  FIG. 1 is a diagram showing a configuration of a music data recording apparatus according to an embodiment. The music data recording device 100 according to an embodiment includes an audio device 1, a hard disk device 2, and a control device 3 mainly composed of a computer. The audio device 1 reads music data and TOC information described later from the CD when recording music data of a CD (compact disc) on the hard disk device 2. When music data is reproduced, sound is output from the speaker 4 by decoding / reproducing the music data recorded in the compressed data format on the hard disk device 2.

  The hard disk device 2 includes a music data recording unit 21 in which music information of music data (songs) recorded on a CD is recorded in advance, a music data recording unit 22 that records compressed data of music data, and music data recording. And an information recording unit 23 that records various types of information of the music data recorded in the unit 22. The music data recording unit 21 records the latest music information. The music data recording unit 21 updates the music information using a recording medium such as a CD on which the latest music information is recorded, or the latest music information via the Internet. The music information is updated.

  The music data recording unit 21 records in advance music information such as album titles, artist names, and music titles of a plurality of CDs. These pieces of music information are recorded together with the TOC information (CD identification information) recorded on the CD, and the contents can be updated (upgraded) as described above. The music data recording unit 22 is a data area in which music data of a CD is recorded, and music data that has been compressed by the control device 3 to be described later is recorded. The information recording unit 23 is a data area in which various types of information including music information of music data recorded in the music data recording unit 22 is recorded.

  When the music data recorded on the CD is recorded on the hard disk device 2, the control device 3 performs a process of compressing the music data to convert it into compressed data, and records information on the hard disk device 2. The music information of the music data recorded in the unit 23 is searched from the music data recording unit 21 of the hard disk device 2.

  FIG. 2 is a diagram illustrating an example of information recorded in the information recording unit 23 of the hard disk device 2. The information recorded in the information recording unit 23 includes a file name of music data recorded in the music data recording unit 22, information for identifying whether or not music information is added, TOC information, a music title of the music, Information such as artist name and CD album name is included.

  The file name of the music data is accompanied by an extension corresponding to the compression standard at the time of compression processing. In the example of FIG. 2, the extension of “mp3” is attached to the data file that has been subjected to the MP3 format compression process, and “wma” is included in the data file that has been subjected to the WMA format compression process. An extension is attached. In this way, music data in various compression formats can be recorded on the hard disk device 2.

  The display device 5 displays the music information recorded in the information recording unit 23 of the hard disk device 2. That is, when reproducing the music data recorded in the music data recording unit 22, the control device 3 reads the music information corresponding to the music data to be reproduced from the information recording unit 23 and causes the display device 5 to display it.

  FIG. 3 is a flowchart showing the contents of processing performed when music data recorded on a CD is recorded on the hard disk device 2. The process starting from step S10 is performed by the control device 3. In step S10, the TOC information read from the CD by the audio apparatus 1 is read, and the process proceeds to step S20.

  In step S20, music information corresponding to the TOC information of the CD read in step S10 is searched from the music data recording unit 21 of the hard disk device 2. As described above, since the music information recorded in the music data recording unit 21 is recorded corresponding to the TOC information, it is determined whether or not there is music information corresponding to the TOC information read in step S10. Investigate. When the music information search process is performed, the process proceeds to step S30.

  In step S30, the music data recorded on the CD is sequentially recorded in the music data recording unit 22 of the hard disk device 2, and information corresponding to the search result in step S20 is recorded in the information recording unit 23. That is, when music information of music data to be recorded in the music data recording unit 22 exists in the music data recording unit 21, the file name of the music data, like the data indicated by the file numbers 1 to 3 in FIG. Record TOC information and song information including song title, artist name, and album title.

  On the other hand, when the music information does not exist in the music data recording unit 21, the TOC information is recorded together with the file name of the music data, like the data indicated by the file numbers 4 to 6 in FIG. In this case, the music information data such as the song name, artist name, and album title in the music data is blank. Also, information indicating that there is no music information is recorded in the information column indicating the presence or absence of music information.

  FIG. 4 is a flowchart showing the contents of processing performed when the music information recorded in the music data recording unit 21 of the hard disk device 2 is updated (version up). The process starting from step S100 is performed by the control device 3. In step S100, it is determined whether or not the music information recorded in the music data recording unit 21 has been updated. Here, the determination is performed based on the update flag. For example, when the user updates using a CD (hereinafter, CDDB) in which the latest music information is recorded, when the user inserts the CDDB into a CD insertion slot (not shown) of the audio apparatus 1, Read the CDDB version. If the read version of the CDDB is newer than the version of the music information recorded in the music data recording unit 21, an update flag is set.

  Further, in the update using the Internet, an update flag is obtained when the version of the music information is obtained from the server that records the latest music information and is newer than the version of the music information stored in the music data recording unit 21. Set. As described above, if the update flag is set in the music data recording unit 21, it is determined that the music information has been updated, and the process proceeds to step S110. If the update flag is not set, the flowchart shown in FIG. The process ends. When the update flag is set, the latest music information is recorded in the music data recording unit 21 from the CDDB or a server on the Internet.

  In step S110, the TOC information of the music data having no music information is read from the data recorded in the information recording unit 23 of the hard disk device 2, and the TOC information that matches the read TOC information is stored in the music data. Search from the recording unit 21. In step S120 following step S110, it is determined whether or not music information corresponding to the TOC information of music data for which there is no music information exists in the music data recording unit 21. If it is determined that there is music information corresponding to the TOC information of the music data for which there is no music information, the process proceeds to step S130, and if it is determined that there is no music information, the process proceeds to step S140.

  In step S130, the music information existing in the music data recording unit 21 is recorded in the information recording unit 23. That is, data indicating the presence of music information is written in the information column indicating the presence or absence of music information, and music information such as a song name, artist name, album title name is written in the blank music information column. Is overwritten. At this time, since the content of the music data recorded in the music data recording unit 22 is not changed (the music data is not overwritten), the file name of the music data is not changed. If the process which records music information is performed, it will progress to step S140. In step S120, if it is determined that there is no music information corresponding to the TOC information, the music information column is left blank.

  In step S140, it is determined whether or not the TOC information of all music data for which there is no music information has been searched. If it is determined that the TOC information of all the music data has been searched, the process of the flowchart shown in FIG. 4 is terminated, and if it is determined that the search for the TOC information of all the music data has not been completed, the process returns to step S110. The process after S110 is performed. When the TOC information of all music data is searched in step S140, the latest music information recorded in the music data recording unit 21 may be recorded or deleted, but at least the version Keep the information about that recorded.

  According to the music data recording device in one embodiment, when recording music data and music information recorded on a CD onto the hard disk device 2, an area for recording music data and an area for recording music information. Are different areas. Thereby, when the content of the music information recorded in the music data recording unit 21 is updated (version up), the music information of the music data for which no music information is recorded is searched from the music data recording unit 21, and the music data is recorded. When information exists, only the music information can be recorded on the hard disk device 2. That is, when music information of music data for which music information is not recorded is newly recorded in the music data recording unit 21 and the music information is recorded in the hard disk device 2, it is not necessary to record the music data again. The recording speed can be increased compared to the method of recording music data and music information in combination.

  Further, in the conventional method of performing compression processing in the form of a combination of music data and music information and recording it on a hard disk device, the music information is obtained when a plurality of music data is compressed in different compression formats. However, it was necessary to perform compression processing in the same compression format as the music data compression format. For this reason, when the music information content recorded in the music data recording unit 21 is updated and the music information overwrite update process is performed, the data overwrite update process takes time. On the other hand, according to the music data recording apparatus in the embodiment, the area for recording the music data and the area for recording the music information are set as different areas. Even when the music information is updated and the music information overwrite update process is performed, it is not necessary to consider the compression format of the music data, and the data overwrite update process can be performed quickly.

  Furthermore, when the music information of the music data to be recorded does not exist in the music data recording unit 21, the recording location of the music data is recorded in the memory, and the contents of the music data recording unit 21 are updated so that the music information is recorded. In the conventional method of reading the recording location of music data to which no music information is added from the memory, adding the music information to the music data, and recording again, the music information is stored in the music data recording unit 21. In consideration of the large amount of music data that does not exist, it was necessary to prepare a large-capacity memory. However, according to the music data recording apparatus in the embodiment, since the hard disk device 2 is provided with an area for recording music information, there are many music data whose music information does not exist in the music data recording unit 21. However, there is no shortage of recording capacity.

  The present invention is not limited to the embodiment described above. In the embodiment described above, whether or not the music information recorded in the music data recording unit 21 has been updated is determined based on whether or not the update flag is set. Is not limited to this method. For example, the control device 3 stores the contents of the music information recorded in the music data recording unit 21 and stores in advance the content of the music information recorded in the music data recording unit 21 at an arbitrary time. If the content of the music information being recorded is different, it may be determined that the content of the music information recorded in the music data recording unit 21 has been updated.

  In the above-described embodiment, the example in which the music data recorded on the CD is recorded on the hard disk device 2 has been described. However, the music data recorded on another recording medium such as an MD may be recorded. it can. The music data recorded on the server is not limited to recording the music data on the hard disk device 2 from a recording medium such as a CD or MD, but the music data recorded on the server is directly recorded on the hard disk device 2 via the telephone line. It may be. Furthermore, although MP3 and WMA are mentioned as compression formats when compressing music data, the present invention is not limited by the compression format, and recording is performed on the hard disk device 2 without performing compression processing. You can also.

  In the above-described embodiment, the hard disk device 2 is used as a medium for recording music data and music information. However, other recording devices can be used. Further, the music data and the music information may not be recorded on the same recording device but may be recorded on different recording devices.

  The song information to be recorded in the information recording unit 23 of the hard disk device 2 includes the song title, artist name, and album title name, but any one or two of these data is included. Alternatively, other information may be included.

  The correspondence between the constituent elements of the claims and the constituent elements of the embodiment is as follows. That is, the music data recording unit 21 is the music information storage unit and the update information storage unit, the music data recording unit 22 is the first recording unit, the information recording unit 23 is the second recording unit, and the control device 3 is the update determination. Each means and control means are configured. In addition, the above description is an example to the last, and when interpreting invention, it is not limited to the correspondence of the component of said embodiment and the component of this invention at all.

The figure which shows the structure of the music data recording device in one embodiment. The figure which shows an example of the information stored in the information recording part of a hard-disk device A flowchart showing the contents of processing performed when recording music data recorded on a CD on a hard disk device A flowchart showing the contents of processing performed when the music information stored in the music data recording unit of the hard disk device is updated.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Audio apparatus, 2 ... Hard disk apparatus, 3 ... Control apparatus, 4 ... Speaker, 5 ... Display apparatus, 21 ... Music data recording part, 22 ... Music data recording part, 23 ... Information recording part

Claims (6)

In a music data recording device that records music information along with music data,
Music information storage means for storing a plurality of music data music information;
A first recording means for recording music data;
When the music information of the music data recorded in the first recording means is stored in the music information storage means, a second recording means for recording the music information;
Update determination means for determining whether or not the content of the music information stored in the music information storage means has been updated;
When it is determined by the update determination means that the content of the music information stored in the music information storage means has been updated, the music information of the music data for which no music information is recorded in the second recording means is A music data recording apparatus comprising: control means for checking whether or not the music information is stored in the music information storage means and, if stored, the music information is recorded in the second recording means. The music data recording apparatus according to claim 1,
When the content of the music information stored in the music information storage means is updated, it further comprises update information storage means for storing information indicating that the music information has been updated,
The update determination unit determines that the content of the music information stored in the music information storage unit has been updated when information indicating that the content of the music information has been updated is stored in the update information storage unit. And a music data recording apparatus. The music data recording apparatus according to claim 1,
The update determination means stores the contents of the music information stored in the music information storage means, and stores in advance the contents of the music information stored in the music information storage means at the time of update determination. A music data recording apparatus, wherein if the content of the music information is different, it is determined that the content of the music information stored in the music information storage means has been updated. In the music data recording device according to any one of claims 1 to 3,
The second recording means includes a file name of music data, information for identifying whether or not music information is included, music data identification information, a song name, an artist name, and names of a plurality of music data. A music data recording apparatus for recording at least one of the information. In the music data recording device according to any one of claims 1 to 4,
The music data recording apparatus, wherein the music data is recorded on the first recording means from a state recorded on a recording medium. In a music data recording method for executing processing for recording music information of music data together with music data on a computer,
An area for recording music data (hereinafter referred to as music data recording area) and an area for recording music information (hereinafter referred to as music information recording area) are set as different areas.
When recording music data in the music data recording area, search for music information corresponding to the music data to be recorded in the music information storage device in which a plurality of music information of the music data is stored, and exist Record the music information,
When the content of the music information stored in the music information storage device is updated, whether or not the music information of music data in which music information is not recorded in the music information recording area exists in the music information storage device A music data recording method comprising: searching for and, if present, recording the music information in the music information recording area.

Images