JP2884756B2 - Music playback device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a musical sound reproducing device, and more particularly to a musical sound reproducing device capable of deleting musical sound information from a musical sound information storage means.

[Conventional technology]

A music sound reproducing device is generally widely used, for example, as a karaoke device. Such a karaoke apparatus has a medium (for example, cassette tape,
A laser disk, a compact disk, etc.) are provided, and the music selected by the user is searched from the medium and played back sequentially.

However, in recent years, the number of pieces of music information to be recorded has been remarkably increased, and in particular, thousands of pieces of music have been used in commercial karaoke apparatuses.
Therefore, in order to cope with an increase in the storage amount of musical information, a musical information storage means such as a hard disk is provided in the karaoke apparatus main body instead of an external medium as a recording medium, and a large amount of musical information is stored in the musical information information storing means. A karaoke apparatus, which is a music reproduction apparatus of a type in which desired music information stored therein is sequentially read and reproduced, has been developed.

In such a karaoke apparatus, the addition of musical tone information of a new music piece is performed by inputting data to the musical tone information storage means by an input means or the like.

[Problems to be solved by the invention]

According to the tone reproducing apparatus of the type in which digital tone information is stored in the tone information storage means as described above, the addition of tone information of a new music piece can be performed relatively easily, and the information storage amount can be compared. It is a huge amount.

However, even if a large amount of data can be stored,
As described above, in the musical sound reproducing apparatus for business use, the number of music pieces to be stored is extremely large, and further, there is a fact that it is necessary to constantly replenish new music pieces and the like.

Therefore, when additionally adding the tone information of a new music piece, the tone information currently stored may need to be deleted. That is, when the data amount is full, it is necessary to delete information of a certain music piece.

Therefore, it is important to delete the music information of the music. In such a case, it is considered preferable to delete the music information of the music that is not frequently used as the music that does not hinder the deletion. However, it is difficult for the conventional apparatus to know which music is used less frequently and which music is less likely to be reproduced.

That is, the conventional device does not consider any means for storing the usage status of each song, and must rely on the experience and intuition of the user to determine the song to be deleted. Therefore, there is a problem that it is difficult to accurately delete a song that is not frequently used.

(Object of the Invention) The present invention has been made in order to solve the above-mentioned problems, and when music information is deleted from the music information storage means, it is possible to accurately delete the music information that is used less frequently. It is another object of the present invention to provide a musical sound reproducing apparatus capable of preventing deletion of a tune to be left among tunes once deleted, and of re-extracting a tune to be deleted. [Means for Solving the Problems] To achieve the above object, a musical sound reproducing apparatus according to the present invention comprises a musical sound information storing means (14), a reproducing means (20), a use state storing means (18), an input means ( 16) A tone reproducing apparatus including a control means (10), wherein a tone information storage means (14) stores a plurality of tone information, a reproducing means (20) reproduces the tone information, and a use state storage means ( 18) stores the date or the number of times the tone information was reproduced last as use status information. The input means (16) inputs search conditions and the number of songs to be added, and the control means (10 ) Performs the first to fifth processing, the first processing reads the number of songs to be added which is input from the input means (16), and the second processing is input from the input means (16). The search condition is read, and the third processing is usage status information of the usage status storage means (16). The search condition read in the second process is compared, and the tone information corresponding to the search condition is searched. The fourth process is the number of the tone information searched in the third process and the additional read in the first process. The fifth processing compares the expected number of music pieces. If the result of the fourth processing is that the number of searched tone information is large, all or a part of the searched tone information is stored in the tone information storage means (14). If the number of searched tone information is small, the process returns to the second process.

[Action]

In the tone reproducing apparatus having the above-described configuration, when the tone information is to be deleted from the tone information storage unit, first, a search condition of the tone information to be deleted is input by the input unit. For example, it is possible to set a condition in which the unused period is two months and the number of times of use is n or less.

The usage status storage means stores the date of last reproduction or the number of times of reproduction for each piece of music information. Can be detected.

Further, the control unit compares the number of searched music information with the input number of music pieces to be added, and when the number of searched music information pieces is larger than the number of music pieces to be added, the control means all or a predetermined number of the searched music pieces. Is deleted from the musical sound information storage means, and if there is not enough, control is performed so as to search again.

Therefore, it is possible to accurately delete the infrequently used music information, prevent the frequently used music information from being deleted by mistake, and prevent the user from being troubled. If there are more songs than expected,
If the number of searched music information is less than the expected number of songs to be added, it should be searched again and deleted. Music information can be selected.

As a result, the storage capacity of the storage medium can be used efficiently in consideration of the number of songs to be added.

〔Example〕

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.

FIG. 1 is a block diagram showing the overall configuration of an embodiment in which a musical sound reproducing apparatus according to the present invention is used as a karaoke apparatus. A CPU 10 serving as a central control unit controls the operation of the entire apparatus. Program memory 12 composed of
The control operation is performed based on the operation program stored in.

To the CPU 10 is connected a tone information storage means 14 which stores tone information of a large number of music pieces. This musical information storage means
14 includes song search information and lyrics information in addition to the performance information of the accompaniment music.

That is, the CPU 10 which has received an instruction signal from the input means 16 for instructing music selection, reproduction start, stop, etc., searches the selected music from the music information storage means 14 based on the instruction signal, and finds the music information. Is read.

The information stored in the music information storage medium 14 includes:
MIDI (Musical Instrument Digit)
al Interface) information ("MIDI" is a trademark). This MIDI information is internationally standardized information,
Information indicating a pitch, tone color, volume, and the like.

Further, the CPU 10 is connected to a usage status storage unit 18 which is one of the characteristic components of the present invention. The usage status storage means 18 stores, for each song, the date of the last song selection and the number of times the song was reproduced. still,
An RTC (Real Time Clock) 19 is connected to the CPU 10 to accurately grasp the current date and time.

Further, the input means 16 is provided with a deletion condition setting key 16a, which is an operation unit for setting and instructing a deletion condition when deleting the music information of the held music.

The CPU 10 is connected to a music playback device 20 composed of a synthesizer, and receives a MIDI signal of a song read by the CPU 10 and converts it into an electronic music signal. This music playback device 20 has a speaker via a mixing amplifier 22.
24 are connected.

And a microphone to enter the singer's song
23 is also connected to the mixing amplifier 22, and the singer's song is reproduced and output from the speaker 24 together with the reproduced sound from the music reproducing device 20.

In the present embodiment, a video playback device 26 is connected to the CPU 10, and a monitor 28 is connected to the video playback device 26 in order to display a background image and display lyrics along with music playback.

Next, the characteristic operation of the karaoke apparatus according to the above embodiment will be described with reference to the flowcharts of FIGS.

First, in FIG. 2, when a certain music piece is selected, the CPU 10 reads the current date and time from the RTC 19 in step (hereinafter simply referred to as “S”) 1 to start using the music piece. Then, in S2, the CPU 10 updates the recording date and time of the usage status storage unit 18.

Next, in S3, the number of times of use is stored in the use status storage means 18 as information on the selected music. The preparation of the usage status storage unit 18 in this embodiment is completed by these steps S1 to S3. Then, in S4, the tone information of the selected music piece is read out, and in S5, the tone information is supplied to the music reproducing device 20, and the tone is reproduced from the speaker 24.

Next, an example of the operation when actually deleting the musical sound information of the music will be described.

First, in S6 of FIG. 3, the number of songs to be added is input. That is, it is sufficient to delete the musical sound information necessary for storing the data to be added, so the number of music pieces is input in advance. Since the musical sound data of each music piece is almost the same, the judgment is made based on the number of music pieces. Note that this input operation is performed by a key operation provided on the input means 16.

Next, in S7, it is determined whether or not a period is specified among the deletion conditions. And if you specify (YES), S
In 8 specify the period. This period designation designates how long a period that has been unused up to the present as a condition to be deleted is to be deleted. And
This period specifying operation is performed by operating a condition setting key 16a provided on the input means 16.

Next, in S7, when the period setting is not performed (NO), or when the period specification in S8 is finished, it is determined in S9 whether or not the number of times is specified. Then, when the number of times is specified (YES), the number specifying operation is performed in S10.

This operation is performed by operating the condition setting key 16a in the same manner as the period specification. Here, the number-of-times designation is a condition for deleting songs whose number of use times is equal to or less than a predetermined number of times as a deletion condition.

In S9, if the number of times is not specified (NO), or
When the number-of-times designation in S10 is completed, in S11, the setting of the search condition is determined. That is, it is determined whether the condition of the designated period and the number of times is an AND condition or an OR condition. The AND condition can be set only when both conditions are specified.

Then, in the case of the AND condition, a music piece that satisfies both of the above two conditions is searched in S12. In the case of the OR condition, in S13, a song that satisfies at least one of the above two conditions is searched.

When searching only by specifying the number of times of S9, in order not to delete the music just added,
A condition is set such that only songs subscribed after a predetermined date and time are to be deleted, and deletion is performed.

By the above-described search operation, music pieces with low usage frequency are extracted based on the two conditions.

Next, in S14, the searched music is displayed. This display is performed on the monitor 28, and is used as a reference for confirmation before deletion and for selecting and specifying the deleted music. next,
In S15, the number of searched songs to be deleted is compared with the number of songs to be added, and it is determined whether the number of songs to be deleted is larger (including the same number) or smaller than the number of songs to be added. If the number of songs is large (YES), it is considered that all the songs to be added can be added by deleting them, so in S16, it is determined whether or not all the searched songs are to be deleted.

Here, in the case of all deletion (YES), the music data deletion operation by the CPU 10 is performed based on the operation instruction of the input means 16 by the user in S17.

When not all deleted in S16 (NO), that is,
As a result of referring to the display in S14, when it is desired to leave a part of the searched music, in S18, the user selects and specifies a deleted music from the searched music. This designation is performed by, for example, key operation of the input means.

Next, if the number of searched songs is smaller than the number of songs to be added (NO) in S15, it means that the amount of deleted data is insufficient. No, that is, here, it is determined whether to end the search processing. When the operation is to be terminated (YES), the operations of S16 to S17 are performed.

If it is determined in S19 that the search process is to be continued (YES), the process returns to S7 to perform an operation to broaden the deletion conditions and increase the number of search songs. By performing the above operation, the number of songs having a data amount corresponding to the number of songs to be added can be selected from the songs that are used less frequently, and the songs that cause the least trouble can be deleted.

In the above-described embodiment, a method of performing deletion while confirming search results is used. However, the deletion method is not limited to this.
The music data may be periodically and automatically deleted based on a preset condition.

〔The invention's effect〕

As described above, according to the music reproducing device of the present invention, when deleting the music information from the music information storage means,
It is possible to accurately and easily delete data of music pieces that are not frequently used.

This eliminates the risk of erroneously deleting frequently used music pieces when adding new musical tone information, and makes it possible to add musical tone information more quickly and without any trouble.

In particular, in the present invention, when the searched tone information to be deleted is larger than the number of music pieces to be added, the selected tone information is further selected from the searched tone information so as not to delete the tone information to be retained, or, If the number of pieces of music information is smaller than the number of music pieces to be added, it is possible to search again and select music information to be deleted.

As a result, the storage capacity of the storage medium can be used efficiently in consideration of the number of songs to be added.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the overall configuration of the embodiment, and FIGS. 2 and 3 are flow charts showing characteristic operations of the embodiment. 10 CPU, 14 Music information storage means, 16 Input means, 16a Condition setting key, 18 Usage storage means, 1
9 ... RTC, 20 ... Music playback device.

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G10K 15/04 G10H 1/00

Claims (1)

(57) [Claims] A musical information storage means (14), a reproducing means (2)
0), a use status storage means (18), a tone reproduction apparatus comprising an input means (16) and a control means (10), wherein the tone information storage means (14) stores a plurality of pieces of tone information, ) Reproduces the musical tone information, the usage status storage means (18) stores the date when the musical tone information was last reproduced or the number of times of reproduction as the usage status information, and the input means (16) stores the search condition and The control means (10) performs the first to fifth processing, and the first processing reads the number of music to be added input from the input means (16). The third process reads the search condition input from the input means (16), and the third process compares the use condition information of the use condition storage means (16) with the search condition read in the second process, and performs a search. The musical sound information corresponding to the condition is searched, and the processing of FIG. The number of pieces of information and the number of songs to be added read in the first process are compared. The fifth process is that if the number of searched tone information is large as a result of the fourth process, A tone reproducing apparatus wherein all or a part of the tone information is deleted from the tone information storage means (14), and the process returns to the second process when the number of tone information searched is small.