JP3811980B2 - Karaoke equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a karaoke apparatus that generates a chorus sound that constitutes a consonant sound together with a singing voice and imparts a so-called hamori effect to the singing.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there is a known karaoke apparatus that mixes a singing voice (hereinafter referred to as a vocal sound) captured from a microphone (hereinafter referred to as a microphone) and a reproduction signal of a music source such as a melody or accompaniment and emits the sound from a speaker. Yes.
[0003]
In recent years, various karaoke apparatuses have been developed that generate chorus sounds that constitute a consonant sound together with vocal sounds, thereby imparting a so-called humming effect to the vocal sounds. As this kind of karaoke apparatus, the applicant has already proposed, for example, Japanese Patent Application No. 7-16181. In the karaoke apparatus disclosed in this application, the vocal sound captured from the microphone is pitch-shifted (that is, the scale is raised or lowered) to generate a chorus sound that constitutes a consonant sound together with the vocal sound. The sound effect is realized by adding to the vocal sound.
[0004]
[Problems to be solved by the invention]
By the way, the recent karaoke apparatus is usually provided with two or more microphone input terminals, and a plurality of singers can sing simultaneously using a plurality of microphones. However, in the conventional karaoke apparatus, when two or more microphones are used for singing simultaneously, vocal sounds collected by the microphones are mixed, and a chorus sound is generated based on the mixture of the vocal sounds. For this reason, there is a problem that the chorus sound becomes cloudy. Here, in order not to make the chorus sound muddy, it is only necessary that one person uses the microphone and the chorus sound is generated based only on the vocal sound emitted by that person. It's more fun to go with two or more people than people. A karaoke device in which two or more people can participate in the chorus using the hamori function and the chorus sound does not become cloudy in that case has been desired, but no karaoke device that satisfies such a requirement has been provided. .
[0005]
The object of the present invention is to provide a karaoke apparatus that exactly satisfies this requirement.
[0006]
[Means for Solving the Problems]
The invention according to claim 1 stores the main melody data corresponding to the main melody part of the music and the chorus melody data corresponding to each of the plurality of chorus melody parts in the music, and reads out according to the performance of the music;
Singing part designation means for designating one of a main melody part and a chorus melody part as a singing part of each microphone in a singing performed using a plurality of microphones;
And the chorus sound generation means to generate the chorus sound is mixed to the vocal sound picked up by the plurality of microphones,
Mixing means for mixing and outputting a vocal sound signal input via the microphone and a chorus sound signal generated by the chorus sound generating means;
With
Priorities are determined in advance for each of the plurality of chorus melody parts,
The chorus sound generating means includes
For the microphone in which the chorus melody part is designated by the singing part designation means, the chorus melody part having the highest priority among the plurality of chorus melody parts is designated as the singing part,
When the chorus sound is generated for the microphone in which the main melody part is designated as the singing part by the singing part designation means, the chorus melody part having the highest priority among the chorus melody parts not designated as the singing part is selected. While selecting as the additional part, the vocal sound signal picked up by the microphone is pitch-shifted by the pitch difference between the chorus melody data corresponding to the additional part and the main melody data, while generating the chorus sound ,
When the chorus sound is generated for the microphone in which the chorus melody part is designated as the singing part by the singing part designation means, the chorus melody part designated as the singing part and the chorus selected as the additional part for the main melody part The chorus melody part with the highest priority among the chorus melody parts excluding the melody part is selected as the additional part for the microphone, and the vocal sound signal collected by the microphone is specified for the microphone. chorus melody data corresponding to singing part and the generating means generates the chorus sound pitch difference only by the pitch shift of the chorus melody data corresponding to the selected additional parts for the microphone was The gist of that karaoke machine.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments will be described below for easier understanding of the present invention.
Such an embodiment shows one aspect of the present invention, and is not intended to limit the present invention, and can be arbitrarily changed within the scope of the present invention.
[0009]
FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. The present embodiment relates to a karaoke apparatus that reads out MIDI information stored in a hard disk or the like in advance and reproduces music, and adds a chorus sound to a vocal sound emitted by a user in accordance with the music reproduction and outputs the same. Is.
[0010]
Here, in the MIDI information reproduced from the storage medium, the main melody data indicating the main melody of the music and the first to Nth choruses to be added to the main melody, in addition to the information for instructing the generation of the musical sound constituting the music. Chorus melody data indicating a melody is included. The MIDI information further includes priority information indicating in what priority order each chorus melody should be handled.
[0011]
Of the above pieces of information, information for instructing the generation of musical tones is sent to a sound source (not shown) and used for control for music reproduction. On the other hand, the main melody data, the chorus melody data, and the priority order information are used for control for adding a chorus sound. FIG. 1 mainly shows a configuration for adding the chorus sound in the karaoke apparatus according to the present embodiment.
[0012]
In FIG. 1, M1 is a first microphone, and M2 is a second microphone, each of which collects vocal sounds emitted by a user and converts them into electrical signals (analog signals) of vocal sounds. In the present embodiment, it is possible to add appropriate independent chorus sounds to both vocal sounds collected by each microphone when singing using these microphones M1 and M2. However, in order to add an appropriate chorus sound to each vocal sound, it is necessary to detect whether the part sung by the user of each microphone is the main melody of the music or the chorus melody. Singing part designation switches S1 and S2 for designation are provided.
[0013]
Various ways of attaching the singing part designation switches S1 and S2 are conceivable. FIG. 2 shows a configuration example in which the singing part designation switches S1 and S2 are provided on the panel surface of the main body 50 of this karaoke apparatus, and FIG. And the example of a structure which provided singing part designation | designated switch S1 and S2 in M2 is shown. In the configuration shown in FIG. 2, each user has an advantage that the operation is easy because the user only has to specify the part by operating the singing part specifying switch S1 (S2) of the microphone M1 (M2). On the other hand, the configuration shown in FIG. 3 has an advantage that an arbitrary microphone can be used. In FIG. 1, the configuration shown in FIG. 3 is adopted.
[0014]
In FIG. 1, reference numerals 101 and 201 denote A / D converters that convert vocal sound electrical signals output from the first microphone M1 and the second microphone M2, respectively, into digital signals (hereinafter referred to as vocal signals).
[0015]
A DSP (Digital Signal Processor) 10 is a digital signal of chorus sound (hereinafter referred to as “chorus sound”) for each vocal signal supplied from the A / D converters 101 and 201 under time division control. Mainly called chorus signal) and reverberation.
[0016]
In the broken-line box representing the DSP 10, elements 102 to 107 and 202 to 207 are shown, respectively. These are the chorus signals of the arithmetic processing executed by the DSP 100 under time-division control. It shows hardware related to generation and reverberation. Further, a portion composed of the elements 102 to 107 is a vocal signal obtained by the first microphone M1 and the A / D converter 101, and a portion composed of the elements 202 to 207 is a vocal signal obtained by the second microphone M2 and the A / D 201. Signals are to be processed, but the former part and the latter part have exactly the same contents. Therefore, the contents of the former part will be described.
[0017]
First, the filter 102 removes unnecessary components such as noise from the vocal signal supplied from the A / D converter 101. The pitch shifter 103 shifts the pitch (frequency) of the vocal signal that has passed through the filter 102 to generate a chorus signal that constitutes a consonant with the vocal signal. The pitch shift amount when shifting the pitch is supplied to the pitch shifter 103 from the control information generating unit 302 described later.
[0018]
A switch 104 is connected to the output end of the pitch shifter 103. The switch 104 is turned on / off by operating a key provided on an operation panel (not shown) of the karaoke apparatus. The adder 105 adds the chorus signal supplied from the pitch shifter 103 via the switch 104 to the vocal signal output from the A / D converter 101 and outputs the result. Therefore, the user can arbitrarily switch whether or not to add the chorus signal to the vocal signal by switching on / off the switch 104 by operating the key on the operation panel.
[0019]
The reverberation adding unit 106 adds reverberation to the digital signal output from the adder 105, and the adder 107 adds the digital signal output from the adder 105 and the digital signal output from the reverberation adding unit 106.
[0020]
The above is the contents of the arithmetic processing of the DSP 10 for the vocal signal obtained by the first microphone M1 and the A / D converter 101, and the same arithmetic processing as this is the second microphone M2 and the A / D converter 201. Is also applied to the vocal signal obtained by. Then, a digital signal indicating the result of each arithmetic processing is output from the DSP 10.
[0021]
The D / A converters 108 and 208 convert each digital signal output from the DSP 10 into an analog signal as described above. These analog signals are output as sound from a sound system (not shown).
[0022]
Next, reference numeral 301 denotes a switch state detection unit that detects the state of the singing part designation switches S1 and S2 and outputs a part designation signal indicating a part to be sung by the user of each of the microphones M1 and M2.
[0023]
The control information generation unit 302 is a circuit that generates control information for controlling the operation of each unit in the karaoke apparatus, and performs the following processing regarding the application of the chorus sound performed by the DSP 10.
a. Processing for detecting a part of each vocal sound collected by each of the microphones M1 and M2 based on the part designation signal b. A process of determining a sound part (hereinafter referred to as an additional part) to be added to each vocal sound based on the detection result c. A process of calculating a pitch shift amount necessary to generate a sound corresponding to the additional part from each vocal sound and supplying it to the DSP 10 by referring to the main melody data and the first to Nth chorus melody data [0024]
The control information generating unit 302 also displays information indicating whether the part sung by the user of each microphone is a main melody part or a chorus melody part when the singing part designation switches S1 and S2 are operated. The information is sent to the display control unit 303 and displayed on the display 20 for about 10 seconds after the switch operation. FIG. 4 shows a display example in this case. As shown in these figures, the singing part for each microphone is displayed in a superimposed manner on the lyrics display screen. In the figure, “harm” means the chorus melody part. When the MIDI information includes information on the names of the artists who sing the main melody part and the chorus melody part, as shown in FIG. 4, these artist names (in FIG. 4, “ AAA ”and“ BBB ”) may be displayed.
[0025]
The operation of this embodiment will be described below. In the present embodiment, not only when one user sings but also when two users sing, an appropriate sound that constitutes a consonant sound is added to the vocal sound of each singer. be able to. That is, it is as follows.
[0026]
(1) When one user sings using one of the microphones M1 or M2 In this case, the user designates the main melody part, for example, by the singing part designation switch S1 of the first microphone M1. As a result, a part designation signal indicating that the main melody part is sung by the first microphone M1 is sent from the switch state detection unit 301 to the control information generation unit 302. Based on this part designation signal, the control information generating unit 302 causes the display 20 to display the part name (main melody part) or artist name corresponding to the first microphone M1.
[0027]
Further, the control information generating unit 302 selects the chorus melody part with the highest priority from the first to Nth chorus melody parts as the additional part. Then, the control information generating unit 302 obtains a pitch difference between the chorus melody data corresponding to the additional part and the main melody data, and sends this pitch difference to the DSP 10 as a pitch shift amount to be applied to the pitch shifter 103.
[0028]
As a result, in the DSP 10, the pitch shifter 103 performs a process of shifting the pitch of the vocal signal obtained by the first microphone M1 and the A / D converter 101 by the pitch shift amount. The chorus signal obtained by this processing and the original vocal signal are added by the adder 105, and a signal obtained by adding reverberation to the addition result is output from the adder 107 and converted into an analog signal by the D / A converter 108. . Then, this analog signal is sent to the sound system and emitted as sound.
[0029]
In addition, the user may designate the singing of the chorus melody part by the singing part designation switch S1. In this case, when the control information generating unit 302 receives a part designation signal indicating that the chorus melody part is sung by the first microphone M1 from the switch state detecting unit 301, the control information generating unit 302 selects the main melody part as an additional part.
[0030]
Next, the control information generation unit 302 selects the chorus melody part with the highest priority based on the priority information. The user is assumed to sing this chorus melody part, and the pitch difference between the main melody data and the chorus melody data corresponding to the chorus melody part is obtained, and this pitch difference should be applied to the pitch shifter 103. A pitch shift amount is sent to the DSP 10. Therefore, in this case, when the user sings the highest priority chorus melody part using the first microphone M1, the DSP 10 generates a vocal signal of the main melody based on the chorus melody sung by the user. Will be emitted from the sound system.
[0031]
(2) When two users sing using each of the microphones M1 and M2, for example, the user of the first microphone M1 designates the main melody part by the singing part designation switch S1, and the second microphone M2 It is assumed that the user / secondary designates the chorus melody part by the singing part designation switch S2. As a result, each part designation signal indicating that the main melody part and the chorus melody part are sung by the first microphone M1 and the second microphone M2 is output from the switch state detection unit 301 and sent to the control information generation unit 302. It is done. Based on these part designation signals, the control information generating unit 302 selects each additional part to be added to each melody part sung by A and B, and a pitch necessary for obtaining a chorus sound corresponding to these additional parts. Find shift information.
[0032]
The processing contents of the control information generating unit 302 will be described with reference to FIG. First, among the first to Nth chorus melody parts, the part with the highest priority is the fourth chorus melody part, the second highest priority is the second chorus melody part, and the third highest priority. It is assumed that the fifth chorus melody part is high. In this case, the control information generating unit 302 considers that the fourth chorus melody part with the highest priority is a part sung by the user / second user of the second microphone M2. In addition, the control information generation unit 302 selects the second chorus melody part having the second highest priority as the additional part corresponding to the main melody part, and the third priority as the additional part corresponding to the fourth chorus melody part. to select the fifth chorus melody part is not high.
[0033]
Then, the control information generating unit 302 obtains a pitch difference A between the second chorus melody data and the main melody data and a pitch difference B between the fifth chorus melody data and the fourth chorus melody data, and these pitch differences. A and B are sent to the DSP 10 as pitch shift amounts to be applied to the pitch shifters 103 and 203.
[0034]
Therefore, in this case, if the user / first user of the first microphone M1 sings the main melody part and the user / second user of the second microphone M2 sings the fourth chorus melody part with the highest priority, the user in the DSP 10 A vocal signal of the second chorus melody is generated by the pitch shifter 103 based on the singing of the instep, and a vocal signal of the fifth chorus melody is generated by the pitch shifter 203 based on the singing of the user and the second party. Vocal sound is emitted from the sound system.
[0035]
Thus, in this embodiment, when singing is performed using the two microphones M1 and M2, the chorus sound of the melody part that does not overlap with the singing part for the vocal sound collected by each microphone. Is added, so the chorus can be enjoyed by two people without making the chorus sound cloudy.
[0036]
In the above embodiment, the priority of each chorus melody part is determined based on the priority information reproduced from the storage medium. However, the first chorus melody part has the highest priority and the second chorus melody part has 2 priority. The priority of each chorus melody part may be fixed in the order of. Moreover, in the said embodiment, although the case where the two microphones M1 and M2 were used was mentioned as an example, the number of microphones is not limited to this.
[0037]
【The invention's effect】
As described above, according to the karaoke apparatus according to the present invention, when two or more people sing using a microphone, the vocal sound collected by each microphone is different from other non-overlapping singing parts. Since the chorus sound can be added, there is an effect that a plurality of people can enjoy the chorus without making the chorus sound cloudy.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of a karaoke apparatus according to an embodiment of the present invention.
FIG. 2 is a diagram showing a microphone and a singing part designation switch in the embodiment.
FIG. 3 is a diagram showing a microphone and a singing part designation switch in the embodiment.
FIG. 4 is a view showing a display example of a singing part in the embodiment.
FIG. 5 is a view showing a display example of a singing part in the embodiment.
FIG. 6 is a diagram showing the operation of the same embodiment.
[Explanation of symbols]
M1 …… First microphone, M2 …… Second microphone,
10 ... DSP, 103, 203 ... Pitch shifter,
302... Control information generation unit (above, chorus sound generation means)
105, 205... Adder (mixing means).

Claims (1)

Reading means for storing main melody data corresponding to the main melody part of the music and chorus melody data corresponding to each of the plurality of chorus melody parts in the music, and reading out according to the performance of the music;
Singing part designation means for designating one of a main melody part and a chorus melody part as a singing part of each microphone in a singing performed using a plurality of microphones;
And the chorus sound generation means to generate the chorus sound is mixed to the vocal sound picked up by the plurality of microphones,
Mixing means for mixing and outputting a vocal sound signal input via the microphone and a chorus sound signal generated by the chorus sound generating means;
With
Priorities are determined in advance for each of the plurality of chorus melody parts,
The chorus sound generating means includes
For the microphone in which the chorus melody part is designated by the singing part designation means, the chorus melody part having the highest priority among the plurality of chorus melody parts is designated as the singing part,
When the chorus sound is generated for the microphone in which the main melody part is designated as the singing part by the singing part designation means, the chorus melody part having the highest priority among the chorus melody parts not designated as the singing part is selected. While selecting as the additional part, the vocal sound signal picked up by the microphone is pitch-shifted by the pitch difference between the chorus melody data corresponding to the additional part and the main melody data, while generating the chorus sound ,
When the chorus sound is generated for the microphone in which the chorus melody part is designated as the singing part by the singing part designation means, the chorus melody part designated as the singing part and the chorus selected as the additional part for the main melody part The chorus melody part with the highest priority among the chorus melody parts excluding the melody part is selected as the additional part for the microphone, and the vocal sound signal collected by the microphone is specified for the microphone. chorus melody data corresponding to singing part and the generating means generates the chorus sound pitch difference only by the pitch shift of the chorus melody data corresponding to the selected additional parts for the microphone was That karaoke machine.

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