JP2996027B2 - Music player - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a music reproducing apparatus in which a user sings a song along with reproduced music.

[0002]

2. Description of the Related Art Conventionally, in a music reproducing apparatus of this kind, specifically, a karaoke apparatus, a user sings himself in accordance with a reproduced sound. The pitch of the playback sound can be changed to make it easier to sing to the tone of your voice. In addition, sound effects such as car sounds, ship sounds, and rain sounds are often inserted between the songs in order to enhance the atmosphere of the music.

[0003]

However, in the above-described music reproducing apparatus, when the user enjoys music by changing the pitch of the reproduced sound so that the user can easily sing, the sound effect inserted in the music is not included. The pitch is also changed and played, and if you change the pitch, the sound effect inserted to enliven the atmosphere and realism will also change the pitch, it will have a different atmosphere sound, and the song is uncomfortable It could be something.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem. Even if a user changes the pitch of a music so that the user can easily sing, the music can be reproduced without changing the pitch of the sound effect. It is an object of the present invention to provide a music reproducing device that can be enjoyed.

[0005]

To achieve this object, a music reproducing apparatus according to the present invention comprises a human voice and sound effects.
A sound data storage means for storing sound data, a music data storage means for storing music data including designation data for designating the reproduction timing of the sound data, music reproduction for reproducing and outputting the music data converting means at a timing when said specified data is specified to be included in the music data, and sound playback means for reproducing and outputting the sound de chromatography <br/> data, the pitch of the music to be reproduced by the music reproducing unit and music pitch conversion means for, converting means as the sound the sound of converting the pitch of the sound reproduced by the sound playback means, and input means for commanding a transformation of the pitch, the instruction conversion interval by the input means based on more pitch of the music is converted into the music pitch conversion means
And read from the sound data storage means.
The sound data that has been Desa seen to determine a person's voice or sound effects,
For only if the sound data is not a sound effect, the
And a <br/> control means for controlling to more pitch is converted in the conversion means as the sound tone.

[0006]

[Action] In the music playback apparatus of the present invention having the above-described configuration, when an instruction of conversion of pitch is inputted from the input means, pitch of the music and sound converting means as the musical interval converting means and the sound sounds are reproduced respectively Is converted. At this time, the control means reads the sound data from the sound data storage means, the sound
Data, it is determined whether the human voice or sound effects, for only if it is not a sound effect, be controlled so as to the conversion of the pitch of the sound by the conversion means as sound sound.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

FIG. 7 is an external view of the karaoke apparatus of the present embodiment as viewed from the front. A keyboard 8 for inputting a user operation is provided at the front of the main body. More specifically, the key group 102 is a numeric keypad for designating the number of a song to be reproduced, and the song selection key 104 is a key for confirming the song number designated by the key group 102. Flat key 106, natural key 108, sharp key 1
10 is for adjusting the pitch of the playback sound so that the user can easily sing to himself, but the flat key 106 lowers the pitch by one semitone each time the key is pressed, and the sharp key 110 raises the pitch a semitone each time the key is pressed once. , And 10 more natural keys
Pressing 8 returns to the original pitch.

FIG. 2 shows a configuration of a control device for controlling the karaoke apparatus of the present embodiment. The main body of this control device is CPU
2, a RAM 4, a ROM 6, and a bus 28;
Is connected to the keyboard 8, the hard disk control circuit 10, the MIDI control circuit 14, the ADPCM reproduction circuit 18, and the pitch conversion circuit 20 via the bus 28.

[0010] The keyboard 8 is used for inputting a user's key input by C.
Notify PU2.

The hard disk 12 stores chorus sound or sound effect ADPCM data sampled and compressed by the ADPCM (adaptive differential PCM) method and performance command data for playing a MIDI sound source.

The hard disk control circuit 10 controls the mechanical operation of the hard disk 12 and manages data between the CPU 2 and the hard disk 12.

The MIDI control circuit 14 converts the performance command data into serial data conforming to the MIDI standard under the control of the CPU 2 and sends the serial data to the MIDI tone generator 16.

The MIDI sound source 16 can generate a large number of musical instrument sounds, analyzes performance command data received from the MIDI control circuit 14, and generates musical sounds in accordance with the commands and instructions such as strength, strength, and effects. To reproduce the performance sound and send it to the mixer 22.

The ADPCM reproduction circuit 18 is provided with the ADP
Decompress and decode CM compressed data.

The pitch conversion circuit 20 has a DSP (Digital Signal Processor).
The pitch of the audio signal is changed without changing the time relationship of the decoded data by performing processing such as interpolation or thinning of the data decoded by the DPCM reproducing circuit 18. This makes it possible to change the key (pitch) of the generally-known audio signal. This makes it possible to change the pitch of the ADPCM reproduced sound for each semitone under the control of the CPU 2. The pitch conversion circuit 20 converts the digitized audio data into an analog signal and sends the analog signal to the mixer 22.

The mixer 22 mixes the signals output from the MIDI sound source 16 and the pitch conversion circuit 20 and outputs the signals to the amplifier 24.

The amplifier 24 electrically amplifies the signal sent from the mixer 22 and drives the speaker 26.

The speaker 26 converts an electric signal into air vibration so that the user can feel the music as actual music.

FIG. 3 is a diagram showing the structure of the command data of the performance command data. The command data includes song number data CB indicating a song number and MIDI command data CM (the MIDI command data includes note data CN as data indicating the scale of the sound, and the scale can be specified for each semitone). , File name data CF indicating the start timing of ADPCM reproduction and the file, and end data CE indicating the end of the music.

FIG. 4 is a diagram showing the structure of ADPCM data. The ADPCM data includes file name data AF as a header, attribute data AG for distinguishing between a back chorus sound and a sound effect, data amount data AF indicating the size of the ADPCM data, and ADPCM compressed data AD. Consists of

The ROM 6 is provided with a program memory 30 for storing a control program (see FIG. 5) for controlling the karaoke apparatus of this embodiment.

The RAM 4 stores a work area for executing the control program and a change amount of a pitch for each semitone of the reproduced music in response to the input of the flat key 106, the natural key 108, and the sharp key 110. A pitch buffer 32 is provided.

The operation of the music reproducing apparatus configured as described above will be described with reference to the flowcharts shown in FIGS.

The flowchart of FIG. 5 shows the main processing, and when the power is turned on, the CPU 2
6, a hard disk control circuit 10, a MIDI control circuit 14, an AP
The CM playback circuit 18 and the pitch conversion circuit 20 are initialized (S
2). Subsequently, it is checked whether the music number of the music piece to be played is determined by the user's input (S4). If not determined, the program waits in this state until the music number is determined (S4: NO). If it is determined, the process proceeds to the next step (S4: YES).

The CPU 2 searches the performance command data group in the hard disk 12 for performance command data starting from the music number data CB corresponding to the determined music number, and retrieves the MIDI command data stored next to the music number data CB. CM, file name data CF, end data C
E and the like are read in the stored order (S6). If the read data is end data CE (S8: YES),
The process returns to S4, which is regarded as the end of the performance and is in a music selection waiting state.
The read data is not the end data CE (S8: N
O), if the data is not the MIDI command data CM (S10: NO), since the data is the file name data CF, the ADPCM reproduction (sound effect generation) process is performed.

In this process, first, the CPU 2 reads the contents of the pitch buffer 32 in the RAM 4 which changes in response to a key input described later, and according to the instruction, the pitch conversion circuit 20
Specifies the amount of change in the pitch of the ADPCM playback sound (S1).
2). Then, the attribute data AG of the ADPCM data in which the file name data CF in the performance command data matches the file name data AF of the ADPCM data group in the hard disk 12 is read out, and if it is a sound effect (S1).
4: YES), it instructs the pitch conversion circuit 20 not to change the pitch of the ADPCM reproduction sound (S16). When the attribute data AG is not a sound effect, that is, when it is a back chorus sound (S14: NO), and after S16 ends, the data amount data AM next to the attribute data AG is read and the data amount data AM is read. ADPC stored next
M data AD is converted to A by the amount indicated in data amount data AM.
The data is transferred to the DPCM regeneration circuit 18. S when transfer is completed
Return to 6.

The transferred ADPCM data is AD
The pitch is converted by the PCM reproduction circuit 18 and
At 0, the pitch is changed by the change amount specified in S12, and the signal is output to the mixer 22. At this time, if the pitch conversion circuit 20 is instructed not to change the pitch in S14, the pitch conversion circuit 20
The pitch of the PCM data is not changed.

On the other hand, if the performance command data is MIDI command data CM in S10 described above (S1
0: YES), and further determines whether this data is note data CN. If it is the note data CN (S20:
YES), the note data is converted into a note data CN having a specified amount of scale changed according to the contents of the pitch buffer 32 (S22).
And the MIDI command data CM is the note data CN
If not, and after the end of S22, the MIDI command data CM is transmitted to the MID via the MIDI control circuit 14.
It sends to I sound source 16, and returns to S6. The MIDI sound source 16 reproduces the performance sound based on the MIDI command data CM and outputs the signal to the mixer 22.

The mixer 22 mixes the signal output from the MIDI tone generator 16 with the signal output from the pitch conversion circuit 20 and outputs the resulting signal to the amplifier 24. The amplifier 24 electrically amplifies the signal from the mixer 22 and outputs the signal to the speaker 26.

On the other hand, the above-described processing relating to key input is always performed independently of the operation shown in the flowchart of FIG. 5 when a key is pressed as an interrupt processing. The processing will be described below with reference to the flowchart shown in FIG.

The CPU 2 first determines whether or not the music selection has been determined (S102). If the song selection is not confirmed (S1
02: NO), the pressed key is checked, and if the key is the numeric keypad 102 (S104: YES), the music number is set (S106) and the process returns to the main processing. If it is not a numeric keypad (S104: NO), but is a music selection key 104 (S1
08: YES), the music selection is determined by the set music number (S110), and the process returns to the main processing.

If it is neither the numeric keypad nor the music selection key (S108: NO), the process returns to the main process without performing any operation.

If the music selection is determined in S102 (S102: YES), the pressed key is checked similarly, and if the key is the flat key 106 (S112: YE).
S), the content of lowering the pitch by a semitone is written in the pitch buffer 32 (S114), and the process returns to the main processing. Instead of the flat key 106 (S112: NO), the natural key 10
If it is 8 (S116: YES), the contents to be made the original pitch are written in the pitch buffer 32 (S118), and the process returns to the main processing. Instead of the natural key 108 (S11
6: NO), if it is the sharp key 110 (S120:
YES), the content of raising the pitch by a semitone is written in the pitch buffer 32 (S122), and the process returns to the main processing.

If it is not one of the flat key 106, the natural key 108, and the sharp key 110 (S120: NO), the process returns to the main process without performing any operation.

As described above, according to the karaoke apparatus of this embodiment, when the user changes the pitch of a song so that the user can easily sing, the sound of a ship, the sound of a car, etc. inserted between the songs. Since the pitch of the sound effect is not changed, it is possible to enjoy karaoke with a sense of reality without discomfort.

The present invention is not limited to the above embodiment, but can be modified without departing from the scope of the invention.

For example, as a recording method of a human voice and a sound effect, a PCM method without compression, other than the ADPCM method, or another method may be used.

Also, performance command data and ADPCM
Instead of the hard disk 12, a CD-ROM, a memory card, a floppy disk or the like may be used as the data storage means.

As a method of reproducing music, an analog method such as a laser disk may be used.

[0041]

As is apparent from the above description, according to the karaoke apparatus of the present invention, even if the music is played at different pitches so that the user can easily sing, the pitch of the sound effect is not changed. The music can be enjoyed, and the reproduction sound full of presence can be enjoyed without impairing the original effect of the sound effect.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of the present invention.

FIG. 2 is a block diagram showing a configuration of a karaoke apparatus embodying the present invention.

FIG. 3 is a diagram showing a configuration of performance command data.

FIG. 4 is a diagram showing a configuration of ADPCM data.

FIG. 5 is a flowchart showing a main operation of the karaoke apparatus of the embodiment.

FIG. 6 is a flowchart showing a key interrupt operation of the karaoke apparatus of the embodiment.

FIG. 7 is an external view showing a state where the karaoke apparatus of the present embodiment is viewed from the front.

[Explanation of symbols]

 2 CPU 4 RAM 6 ROM 8 Keyboard 12 Hard disk 16 MIDI sound source 18 ADPCM reproduction circuit 20 Pitch conversion circuit

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G10K 15/04 302 G10H 1/00 102 G10H 1/20

Claims (1)

(57) [Claims] 1. A music data stored sound data storage means for storing sound data consisting of a human voice and sound effects, music data including a designation data for designating the reproduction timing of the sound data storage means, a music reproduction means for reproducing and outputting the music data, the at the time of designation data designating included in the music data, and sound playback means for reproducing and outputting the sound data, said music reproducing means sound converting the music pitch conversion means for converting the pitch of the music being played, the pitch of the sound reproduced by the sound playback means by
Conversion means as sound, an input means for commanding a transformation of the pitch, on the basis of a command conversion interval by the input unit, as the pitch of the more songs in the music pitch conversion means is converted
Control and read from the sound data storage means.
The sound data is to determine a person's voice or sound effect, with only if the sound de <br/> over data is not a sound effect, more pitch is converted to the conversion means as the sound sound And a control means for performing the control as described above .