JP3392650B2 - Karaoke equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a karaoke apparatus, and more particularly, to an audible sound obtained by adding an echo to a sound signal input in accordance with karaoke performance music. The present invention relates to a karaoke device for converting to karaoke. 2. Description of the Related Art Heretofore, it has been well-known that a singer adds an echo to an audio signal sung by a singer along with karaoke accompaniment and converts the signal into an audible sound. It can be as strong as the singer wants and vice versa. In such a karaoke device, not only when the singing ability of the singer is high, but also
Even if it is low, by increasing the degree of echo, anyone can listen as if singing well,
In particular, if the degree of echo is increased in a part outside the pitch, there is a further effect of hiding the deviation of the pitch. [0003] However, if the singing is continued while the degree of echo is strengthened from the beginning to the end of the singing, the singing itself becomes converse and it becomes very difficult to listen. Therefore, a singer who uses a conventional karaoke apparatus keeps the degree of echo low to a certain extent in a part where the singer can sing relatively well, while the degree of the echo is manually increased in a part where it is difficult to sing in a high range. However, since the echo adjustment is more complicated than expected, the singer keeps the degree of echo constant according to the karaoke song to be sung, and ultimately does not use this adjustment function As a result, there is a problem that the singer can not hear the singer satisfactorily, even though the singer can hear the singer better. The present invention has been made to solve the above problems, and detects a shift in pitch during singing of a singer, and automatically changes the intensity of the echo according to the degree. It is an object to provide a karaoke device. [0005] In order to achieve the above object, the karaoke apparatus according to the first aspect of the present invention adds an echo to an audio signal input in accordance with karaoke performance music. In the karaoke device for converting to an audible sound, a pitch difference detecting means for detecting a pitch difference between the pitch of the audio signal and the karaoke performance music, and a pitch difference detected by the pitch difference detecting means. And control means for controlling the degree of echo. Next, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a karaoke apparatus according to the present invention, and shows a basic configuration when applied to a communication karaoke apparatus. The karaoke apparatus 1 is shown in the outer broken line in FIG. Reference numeral 7 denotes a CPU which controls the entire karaoke apparatus 1 and has, in addition to a microprocessor, a ROM 7a for storing a control program and a plurality of flag areas required for control. It is composed of a RAM 7b for temporarily storing data and the like, and performs control of various input / output devices, memory management, data processing, and the like. Reference numeral 12 denotes an operation unit, which includes various keys, switches, and a remote controller (not shown) for setting various states of the karaoke apparatus 1. Reference numeral 13 denotes a display unit, which includes an LCD, an LED, and the like for displaying information (for example, a warning display) necessary for setting various states of the karaoke apparatus 1 to an operator. Reference numeral 5 denotes a modem, which converts music data transmitted from the host computer via an analog communication line such as a telephone line into a digital signal. The music data is data necessary for reproducing the karaoke music, and includes control data and performance data. The control data includes, for example, information indicating the number of start clocks and the number of end clocks of chorus of a karaoke song, and the performance data includes performance music data which is MIDI data coded based on the MIDI standard and character information. , Lyric image data indicating the lyrics of the performance music composed of color change information and genre information. Reference numeral 6 denotes a main storage device, which comprises a rewritable storage medium such as a hard disk, a semiconductor memory, a CD-ROM, a DVD-ROM and a DVD-RAM, and a read-only storage medium. The music data taken in by the modem 5 is stored below. The management information storage unit of the main storage device 6 stores information necessary for managing the stored music data as a management table. For each music, a music number, a stored date (year) ) And information indicating the number of music selections after storage. Normally, music data is stored in a compressed state in order to minimize the storage capacity of the main storage device 6. The music data is not only taken in at the request of the user of the karaoke apparatus 1 but also automatically taken in a time zone when the karaoke apparatus 1 is used less frequently, such as at night. Reference numeral 15 denotes a performance music information storage unit, which is generally constituted by a rewritable and high-speed accessible storage medium such as a semiconductor memory. Information indicating whether the karaoke song has been played, information indicating whether the karaoke song has been played within a predetermined number of songs, and whether the karaoke song has been played within a predetermined time. Information and information specifying a karaoke tune that has been disabled by the singer to sing later are stored. Reference numeral 14 denotes a performance data storage unit which is generally constituted by a rewritable and high-speed accessible storage medium such as a hard disk or a semiconductor memory.
Under the control of, the music data read from the main storage device 6 is stored in a decompressed state. Reference numeral 2 denotes an external video reproducing device, which is widely used in VTRs, video CD players, LD players, and recently, MPEG (Mo
wing PictureElement Group
p) Players and DVDs (Digital VideoD)
isk) A player or the like that reproduces and outputs a video signal from video data recorded on a video tape or various discs as a recording medium under the control of the CPU unit 7. Reference numeral 9 denotes a superimpose unit, which is a CP.
The U unit 7 supplies character information, color change information, and the like in the lyrics video data obtained by searching the music data stored in the performance data storage unit 14. The superimposing unit 9 combines a background image signal supplied from the external image reproducing device 2 with an instruction from the CPU unit 7 with a lyrics image based on lyrics image data indicating the lyrics of the music to be played. The image is output to the video display unit 3 described later. Reference numeral 3 denotes a video display unit, which is a display device capable of simultaneously displaying a plurality of videos such as a wide TV and a monitor TV, which are widely used recently, in a plurality of windows. The video display unit 3 includes a plurality of video display devices 1 to N, and each video display device simultaneously displays a video based on a video signal input from the superimposition unit 9. Reference numeral 8 denotes a MIDI tone generator, and a CPU 7
Thus, MIDI data in the music data stored in the performance data storage unit 14 is supplied, and the MIDI data is output as a performance music signal by the function of the electronic musical instrument. Reference numeral 16 denotes a pitch comparison unit which compares the accompaniment music signal from the MIDI sound source unit 8 with the singing voice signal of the singer from the microphone 4 and converts the degree of the pitch deviation of the signal into numerical data. Output to the unit 7. Reference numeral 17 denotes an echo adjusting unit, which is a CPU unit 7
Under the control of the singer, an audio signal obtained by adding an echo effect to the singing voice signal of the singer captured by the microphone 4 is output. The degree of the echo is automatically adjusted in accordance with an instruction from the CPU unit 7. 10 is a mixer / amplifier section,
By synthesizing and amplifying the performance music signal output from the MIDI sound source section 8 and the audio signal output from the echo adjustment section 17 and outputting the synthesized signal to the speaker 11, the performance music and the singer's singing voice are reproduced as audible sounds. . Next, the operation of the karaoke apparatus according to the present invention configured as described above will be described. The operator
For example, when the user selects a song by operating a remote controller included in the operation unit 12 and inputting a song number of a song to be played while watching information displayed on the display unit 13, the CPU unit 7
The music number data of the input music piece is temporarily stored in the RAM 7b. The CPU section 7 stores, in the music number data of the performance music, the reservation number data of the karaoke music to be assigned to the next reserved music stored in the RAM 7b, the reservation time data of the karaoke music, and the karaoke music. Performance completion information indicating whether or not the performance has been performed is added to the performance music information storage unit 1.
5 is stored. Normally, the CPU section 7 reproduces the performance music in accordance with the registration order of the music number data stored in the performance music information storage section 15. However, in order to simplify the description, before the performance music is registered, nothing is registered. Suppose not. The CPU section 7 constantly searches the music piece information storage section 15 to determine whether or not there is a music piece to be reproduced. In this case, only one piece of music number data is registered. Immediately, the operation immediately proceeds to the operation of playing the music piece. CP
The U section 7 searches the music data stored in the main storage device 6 for music data corresponding to the music number, based on the music number data stored in the performance music information storage section 15, and searches for MIDI data required for performance. The data, character information, color change information, genre information, etc. in the lyrics data of the music to be played are obtained and stored in the performance data storage unit 14. Then, the CPU section 7 performs MIDI processing based on the MIDI data fetched into the performance data storage section 14.
By controlling the sound source section 8, a music signal required for playing the music is reproduced, and the music signal is output to the mixer / amplifier section 10.
Flows from one. When the singer starts singing along with the karaoke accompaniment music, the singing voice of the singer is converted into an audio signal by the microphone 4 and input to the pitch comparison unit 12. The pitch comparing section 12 compares the voice signal with the MID
By comparing the accompaniment music signal from the I sound source section 8 with the accompaniment music signal, it is instantaneously determined how much the audio signal is deviated, and the result is converted into numerical data and converted into numerical data.
Output to For example, the converted numerical data is “+5”
Indicates that the audio signal is shifted by 5 points in the higher direction than the accompaniment music signal. Also,
If the numerical data is “−10”, it indicates that the audio signal is shifted by 10 points in the lower direction.
That is, the numerical data indicates the direction of the deviation by its sign,
The magnitude of the deviation is indicated by the absolute value. When receiving the numerical data from the pitch comparing section 12, the CPU section 7 controls the echo adjusting section 17 based on the absolute value of the numerical data. For example, the larger the numerical data received from the pitch comparing unit 12, the greater the CPU unit 7 causes the echo adjusting unit 17 to add an echo effect to the voice signal of the singer captured by the microphone 4. The mixer / amplifier section 10 synthesizes the performance music signal from the MIDI sound source section 8 and the audio signal input from the echo adjustment section 17 and outputs the synthesized music signal to the speaker 11 so that the performance music and the singing voice are audible. To play as. As described above, according to the karaoke apparatus according to the present invention, a shift in the pitch is detected during the singing of the singer, and the intensity of the echo is determined according to the degree of the shift in the pitch. Is automatically changed, so that the function of the echo can be effectively used for singing the singer.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a configuration of a karaoke apparatus according to the present invention. [Description of Signs] 1 Karaoke device 2 External video playback device 3 Video display unit 6 Main storage device 7 CPU unit 7a ROM 7b RAM 8 MIDI sound source unit 9 Superimpose unit 10 Mixer / amplifier unit 12 Operation unit 13 Display unit 14 Performance Data storage unit 15 Performance music information storage unit 16 Interval comparison unit 17 Echo adjustment unit

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G10K 15/04 302 G10H 1/00 G10K 15/12

Claims (1)

(57) [Claim 1] In a karaoke apparatus for converting an audio signal inputted along with karaoke performance music into an audible sound by adding an echo, the pitch of the audio signal and the karaoke performance music And a control means for controlling the degree of echo based on the degree of the pitch difference detected by the pitch difference detecting means. Karaoke equipment.