JP2797645B2 - Karaoke device with echo function - Google Patents

Description

The present invention is used in a karaoke apparatus with an echo function, particularly a karaoke apparatus that plays an electronic musical instrument based on musical sound information,
The present invention relates to a device having an echo function.

[Prior art] Conventionally, musical tone information (MIDI standard information) has been transmitted to electronic musical instruments such as synthesizers, electronic pianos, and rhythm machines.
A karaoke apparatus that automatically outputs a performance (accompaniment) selected by an electronic musical instrument and sings while watching lyrics superimposed on a video output from a laser disk apparatus has already been filed.

Some of such karaoke devices have a function of adding an echo to voice input by a microphone. This echo function is designed to adjust the amount of echo arbitrarily by changing the echo volume etc. provided in the operation unit, according to this, the singer's voice sounds like a echo, You can enjoy different music.

[Problems to be Solved by the Invention] However, in the above-described conventional karaoke apparatus, as described above, the echo volume and the like are manually operated, and it is extremely difficult to set the echo amount to an optimal amount. . In other words, the optimal amount of echo varies from song to song,
By setting the amount of echo for each song, rich expression is possible.

Therefore, in the karaoke apparatus, there has been a demand for a technique capable of controlling the karaoke apparatus to an optimal amount according to the atmosphere of the music.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a karaoke apparatus with an echo function that can automatically control an echo amount in accordance with a song.

Means for Solving the Problems In order to achieve the above object, the present invention provides a karaoke apparatus with an echo function for adding an echo to an input signal and outputting the signal, and outputs musical sound information including echo setting information. It is characterized by comprising musical tone information storage means for storing, and echo adding means for adding an echo based on echo setting information included in the musical tone information read from the musical tone information storage means.

[Operation] According to the above-described configuration, the musical sound information is input, the accompaniment is performed by the electronic musical instrument, and the echo setting information included in the musical sound information is read. The echo setting information is information of an echo amount to be set in accordance with the atmosphere of the music, and the set echo amount is added to the echo setting information as needed and output from the speaker.

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

FIG. 1 shows a circuit configuration of a karaoke apparatus with an echo function according to the embodiment. An echo adding circuit 12 is connected to a microphone 10 via an A terminal, while a musical sound information storage means 14 is connected to a B terminal. The above-mentioned echo adding circuit 12 and the electronic musical instrument 16 are connected via the. The electronic musical instrument 16 is a synthesizer, an electronic piano, a rhythm machine, or the like, and is played based on the musical score information stored in the musical tone information storage unit.

As the score information, for example, information of the MIDI standard or the like (hereinafter referred to as MIDI information) is used, and the MIDI information is digital data representing note information such as a scale.
By supplying MIDI information to the electronic musical instrument 16 via a serial interface or the like, accompaniment can be performed.

FIG. 2 shows the structure (format) of the musical tone information stored in the musical tone information storage means 14, and between the musical score code data 100 as the MIDI standard information as shown in FIG. Echo setting code data 200 is incorporated. The echo setting code data 200 is information on the echo amount, and the echo adding circuit 12 controls the echo amount based on the data 200. The musical score code data 100 includes a code for designating a time waiting process for the echo adding circuit 12 and the electronic musical instrument 16, thereby specifying the operation timing of each unit.

The electronic musical instrument 16 is insensitive to the above-described echo setting code signal, while the echo adding circuit 12 is insensitive to the musical score code signal, but the echo adding circuit 12 does not The operation timing is set while waiting for the time specified by the data.

The echo adding circuit 12 and the electronic musical instrument 16 are provided with a mixer 18 for mixing an audio signal and a performance signal, and a speaker 22 is connected to the mixer 16 via an amplifier 20. And the echoed sound is output.

FIG. 3 shows the internal circuit configuration of the echo adding circuit 12, and the A, B, and C terminals in the figure correspond to the first A, B, and C terminals.

In the figure, the echo addition circuit 12, operational amplifier 24 is a feedback loop configuration, the analog delay element 26 and the resistor bank 28 is constituted by a fixed resistor R _1, R _2, R ₃ Prefecture, resistor bank 28 attenuator is constituted by the fixed resistors R ₃ and. Accordingly, the audio signal of the microphone 10 input from the terminal A is amplified by the operational amplifier 24 and output from the terminal C, and is also attenuated by the attenuator to become the feedback input of the operational amplifier 24. , The amount of echo can be controlled by changing the feedback amount of the circuit.

The connection conversion of the resistors in the resistor bank 28 is performed by the echo setting code data 200 of FIG.

The embodiment is constructed as described above. When the musical tone information shown in FIG. 2 is output from the musical tone information storage means 14 shown in FIG. 1, the electronic musical instrument 16 detects the musical score code data 100 and outputs it by a synthesizer or the like. Accompaniment performance is performed. On the other hand, the echo adding circuit 12 detects the echo setting code data 200 while setting the operation timing based on the time waiting information included in the musical score information. Since the resistor connection is changed, the feedback amount of the feedback loop changes, and the echo amount is variably set in accordance with the progress of the music.

At this time, the voice of the singer is being input from the microphone 10, and the echo adding circuit 12 adds an echo to the voice with the echo amount controlled and set as described above. The sound that has been echo-tuned to the optimal amount is automatically output.

In the above embodiment, the echo setting code data 200 in the musical sound information is information on the amount of echo, but by setting the amount of echo to zero, no echo can be added at all.

In the above embodiment, the apparatus using the electronic musical instrument based on the MIDI standard has been described. However, for example, the echo setting information may be added in another form to the information recorded on the optical disc in the PCM format.

[Effects of the Invention] As described above, according to the present invention, the echo setting information is provided in the musical score information, and the echo amount is automatically added based on the echo setting information. It is possible to provide a karaoe apparatus capable of rich expression.

[Brief description of the drawings]

FIG. 1 is an overall view showing the configuration of a karaoke apparatus with an echo function according to an embodiment of the present invention, FIG. 2 is an explanatory diagram showing the configuration of musical tone information, and FIG. 3 is an internal configuration of the echo adding circuit of FIG. FIG. 10 microphone, 12 echo addition circuit, 14 tone information storage means, 16 electronic musical instrument, 18 mixer, 22 speaker, 24 operational amplifier, 26 analog delay element, 28 … Resistance bank, 100… Score code data, 200… Echo setting code data.

Claims (1)

(57) [Claims] A musical tone information storing means for storing musical tone information and echo amount setting information synchronized with the progress of the musical score information, and outputting the musical score information and the echo amount setting information; Echo adding means (12) for adding an echo based on the echo amount setting information to the audio signal input from (10) and outputting the result, and reproducing means (16) for reproducing the performance signal based on the musical score information.
A karaoke device with an echo function, comprising: