JP3141796B2 - Karaoke equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a karaoke apparatus that can automatically add harmony to one's own singing voice.

[0002]

2. Description of the Related Art Some recent karaoke apparatuses have a function of adding a harmony sound to a singing voice of a user (hereinafter referred to as a vocal sound). Here, FIGS. 3 and 4 are block diagrams showing the configuration of this type of conventional apparatus. In the apparatus shown in FIG. 3, harmony data (information indicating one or more sub-melody) HD is included in the karaoke music data in advance, and the harmony data H
According to D, the vocal sound is pitch-shifted to generate a harmony sound. That is, the microphone 1, the A / D converter 2
Of the vocal sound input via the VOICE is converted by the pitch converters 8, 9 and 10. At this time, the control unit 6 controls the pitch converters 8, 9, and 10 according to the harmony data HD extracted from the music data. As a result, for example, when the vocal sound is C, the pitch converters 8, 9, and 10 output harmony sounds of the scales of M, S, and C, respectively. Then, the harmony sound and the vocal sound are mixed by the mixer MX, and the D / A converter 2
3 is output.

On the other hand, a control unit 6 analyzes the accompaniment data MD extracted from the music data, and
The sound source 7 is controlled. As a result, from the MIDI sound source 7,
A musical sound signal of the accompaniment sound is generated, and this is mixed with the vocal sound and the harmony sound by the mixer MX. As a result, the vocal sound of the singer is output with accompaniment and harmony.

Next, the configuration of the apparatus shown in FIG. 4 is the same as that of the above-described apparatus, except that chord data and scale data are stored as data for generating harmony, which is output according to the progress of the music. Is done. The control unit 6 determines, based on this data, how many times the harmony should be given to the melody or how many lower harmony should be given to the melody. That is,
The control unit 6 calculates a pitch difference between the melody sound and the harmony sound. When the pitch of the vocal sound is detected by the pitch detector 5, the control unit 6 adjusts the pitch (pitch) of the vocal sound to form a harmony sound having the pitch difference obtained as described above. Then, harmony sounds of 3rd down, 3rd up or 5th down, 5th up etc. are generated by the pitch converters 8, 9, 10. Other configurations are the same as those of the above-described device of FIG.

[0005]

By the way, in the case of the apparatus shown in FIG. 3, the pitch of one sound and one harmony must be prepared in advance when creating music data. Was difficult to create.

Further, in the case of the apparatus shown in FIG. 4, since the pitch of the input sound (microphone input sound) is directly used for harmony generation, if the singer does not sing at the correct pitch, the pitch of the harmony will be shifted. There were drawbacks.

The present invention has been made in view of the above circumstances, and provides a karaoke apparatus which can easily generate music data and can generate correct harmony even if the singer's pitch is shifted. It is an object.

[0008]

According to a first aspect of the present invention, there is provided a karaoke apparatus for generating an accompaniment sound signal based on music data and a vocal sound signal input from a microphone. And a karaoke apparatus for mixing and outputting the accompaniment sound signal and the melody.
A harmony sound table storing the pitches of the harmony sounds corresponding to the melody and the chord, extracting melody information and chord information included in the music data, and The finger
A harmony sound determining means for searching the harmony sound table based on the harmony sound configuration designated by the setting means and determining a pitch of the corresponding harmony sound, and the harmony sound determining means determining a pitch of the vocal sound. Pitch converting means for converting the pitch so that the pitch of the harmony sound is obtained. The karaoke apparatus according to claim 2, wherein the karaoke apparatus generates an accompaniment sound signal based on music data and mixes and outputs a vocal sound signal input from a microphone and the accompaniment sound signal. Harmony against melody
A designation means for designating the composition of the sound, a harmony sound table storing the pitches of the harmony sounds corresponding to the melody and the chord, extracting the melody information and the scale information contained in the music data, and extracting these information , To specify means
Accordingly, the harmony sound table is searched based on the designated harmony sound configuration, and the harmony sound determination means for determining the pitch of the corresponding harmony sound, and the harmony sound determined by the harmony sound determination means for the pitch of the vocal sound. Pitch converting means for converting the pitch to a pitch of a sound.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. A: Configuration of Embodiment FIG. 1 is a block diagram showing an overall configuration of a karaoke apparatus according to an embodiment of the present invention. In this embodiment, a MIDI (Musical instrument digital interface) supplied from a host computer via a communication line is used.
The present invention is applied to a communication karaoke system that stores standard music data in a hard disk or the like, reads the data, and reproduces the music. Note that, in each unit of the apparatus shown in FIG. 1, the same parts as those of the apparatus shown in FIG. 3 described above are denoted by the same reference numerals, and description thereof will be omitted.

In the figure, 11 to 14 are filters, respectively.
Effectors for giving effects such as reverb, echo, pan (sound image localization), etc., 15 to 18 are amplifiers, respectively, and 19 is an adder. With the above configuration, the vocal sound signal and the pitch-converted sound signal (harmony sound signal) are each given a predetermined effect, then amplified at individual magnifications, and mixed in the adder 19. Adder 19
Is supplied to the adder 21 via the effector 22. The effector 22 has the same function as the effectors 11 to 14, and gives various effects to a mixed signal of a vocal sound signal and a harmony sound signal.

An adder 21 is supplied with an accompaniment tone signal output from the MIDI sound source 7 via an amplifier 20, whereby the output of the adder 21 is an accompaniment signal,
The vocal sound signal and the harmony sound signal are mixed. The output signal of the adder 21 is D /
After being converted into an analog signal by the A converter 23, the signal is amplified by the amplifier 24 and supplied to the speaker 25. Next, the SCD is scale data sequentially indicating the scale of the music, and is created in advance as a part of the music data. The scale data SCD is, for example, MIDI
It is described according to the format of Exclusive Data and Control Change parameters of the standard. By the way, the scale data SCD can be created by knowing the scale of the notes of each part of the music based on the scale. Therefore, the scale data SCD is extremely compared with a case where the harmony data is edited one note at a time and input. It can be easily created.

Next, reference numeral 5 denotes a pitch detector which detects the pitch of the vocal sound signal supplied via the A / D converter 2 and supplies it to the control unit 6. The control unit 6 includes a CPU, RA
M, ROM, and other peripheral circuits, which control each unit of the apparatus, determine the pitch of the harmony sound based on the melody data MED and the scale data SCD included in the music data, and generate pitch data corresponding thereto. It is supplied to pitch converters 8, 9, 10. In this case, the melody data MED generally uses a guide melody included in karaoke music data. The guide melody is included as a part of the accompaniment data MD, and guides the singer to the singer by generating a musical tone according to the guide melody. Further, the control unit 6 controls the effectors 11 to 14 and 22 such as echo and pan according to control information (included in the accompaniment data MD) included in the music data, and also controls the amplifiers 15 to 18. And 20 for the gain setting. Thereby, the effect corresponding to the music and the volume balance of each voice are set.

A ROM 50 stores a plurality of tables T indicating the relationship between the harmony sound and the main melody. FIG. 2 is an example of the table T stored in the ROM 50, and is an example when the scale is in C major. As shown in this figure, the pitch of the harmony sound is stored corresponding to each pitch of the main melody. This table T is provided for each scale and for the type of pitch difference (3rd, 5th, etc.) from the main melody. In this embodiment, which table T is selected is determined by the operation of the operation unit 30. The operation unit 30 also has a function of instructing the control unit 6 to perform various processes.

B: Operation of Embodiment Next, the operation of this embodiment having the above configuration will be described. First, when a performance start is instructed from the operation unit 30,
The control unit 6 reads out the music data, from which the accompaniment data M
D and scale data SCD are extracted. By controlling the MIDI sound source 7 based on the accompaniment data MD, accompaniment music is generated. On the other hand, the control unit 6
From the table T stored in the OM 50, the pitch difference between the melody and the harmony sound, and the scale data SCD
Is selected, and the pitch of the harmony sound is determined based on the contents of the selected table T and the melody data MED.

The pitch converters 8, 9, and 10 are controlled according to the pitch of the harmony sound obtained in this manner to convert the pitch of the vocal sound. In this case, pitch conversion is performed by an amount corresponding to the pitch difference between the harmony sound and the melody sound. As described above, the harmony sound that matches the pitch of the harmony sound retrieved from the table T is automatically generated. In this case, the pitch of the harmony sound is
Since it is determined by the scale data SCD, the table T and the melody data MED, the harmony sound is produced at the correct pitch even if the pitch of the vocal sound is out of order.

Further, how many harmony sounds are added to the melody and how they are arranged above and below the melody can be arbitrarily determined by operating the operation unit 30. Therefore, the user can select a harmony configuration as desired. In this case, data indicating a pattern of the harmony configuration may be configured in advance, and the pattern may be selected. That is, a pattern in which harmony of 3 degrees and 5 degrees is added above the melody, a pattern in which harmony is added 3 times above and below the melody, and 3 and 5 harmony below the melody.
A harmony configuration such as a pattern for adding a degree of harmony,... May be preset, and the harmony configuration may be selected. It should be noted that data specifying the harmony configuration may be included in the music data, and the table T may be selected based on this data.

C: Modifications In the present invention, the following modifications are possible. (1) In the above-described embodiment, the pitch of the harmony sound is obtained by using the scale data. However, the same processing can be performed by using the chord data. The chord data may be included in the music data in advance, or the melody data (guide melody information) may be analyzed and detected before the performance starts. Note that various techniques for analyzing a melody and detecting a chord have been conventionally proposed. For example, a method of determining a chord from a key combination that is keyed on, a method of determining a chord based on the key at that time, the immediately preceding chord, and the key depression sound at that time (Japanese Patent Publication No. 2-52277), or a melody A method for detecting chords in consideration of flow (Japanese Patent Laid-Open No. 5-277767)
No.). Further, even when chord data is recorded in advance, the chord of each part is only recorded as the music progresses, which is a very simple task compared to the task of editing / inputting harmony data. In addition, when creating karaoke harmony data, there is almost always a case where a code is described in the music score in the course of the work, so if such a music score has already been created,
By using this, it is not necessary to newly arrange the chords, and the chords described on the music should just be recorded.

(2) As scale data and chord data, for example, information input in real time from an electronic musical instrument or the like may be used.

(3) The number of harmony sounds in the above-described embodiment may be appropriately set by operating the operation unit 30 or control data to be embedded in music data. Also, the number of pitch converters is not limited to the number shown in the embodiment,
What is necessary is just to provide the number according to the required maximum number.

(4) Table T stored in ROM 50
Are prepared in large numbers according to the scales and codes, but when a special scale or code is used, a table T corresponding to this may be provided from the outside. At this time, a temporary storage medium such as a RAM may be prepared in the apparatus, and a table T supplied from the outside may be stored and used here.

[0021]

As described above, according to the present invention, it is easy to generate music data, and it is possible to generate correct harmony even if the singer's pitch is shifted.
In addition, a harmony structure specified by the user can be arbitrarily realized by providing a harmony sound designating means for designating the harmony sound structure for the melody, thereby searching the specified harmony sound from the harmony sound table. (Claims 1 and 2 ).

[Brief description of the drawings]

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

FIG. 2 is an example of a table T showing a relationship between a main melody and a harmony sound used in the embodiment.

FIG. 3 is a block diagram illustrating a configuration example of a conventional device.

FIG. 4 is a block diagram showing another configuration example of the conventional device.

[Explanation of symbols]

T: table (harmony sound table), 1: microphone, 6: control unit (harmony sound determination means), 8, 9, 1
0: pitch converter (pitch conversion means), 30: operation unit (designation means).

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-8-248970 (JP, A) JP-A-8-211871 (JP, A) JP-A-7-281684 (JP, A) (58) Field (Int.Cl. ⁷ , DB name) G10K 15/04 302 G10H 1/10

Claims (2)

(57) [Claims] It generates the accompaniment tone signal on the basis of 1. A music data, the karaoke apparatus that outputs a mixture of the vocal sound signal and the accompaniment tone signal input from the microphone, specify the configuration of the harmony notes for melody Designated hands
A step, a harmony sound table storing pitches of harmony sounds corresponding to the melody and chord, extracting melody information and chord information included in the music data, and specifying these information and the designation by the designation means.
A harmony sound determining means for searching the harmony sound table based on the selected harmony sound configuration and determining a pitch of the corresponding harmony sound; and a harmony sound pitch determined by the harmony sound determination means determining the pitch of the vocal sound. A karaoke apparatus comprising: pitch conversion means for converting a pitch to a pitch. 2. A karaoke apparatus which generates an accompaniment sound signal based on music data and mixes and outputs a vocal sound signal input from a microphone and the accompaniment sound signal , specifies a harmony sound configuration for a melody. Designated hands
A step, a harmony sound table storing pitches of harmony sounds corresponding to the melody and chord, melody information and scale information included in the music data are extracted, and the information is designated by the designation means.
A harmony sound determining means for searching the harmony sound table based on the determined harmony sound configuration and determining a pitch of the corresponding harmony sound, and a harmony sound determined by the harmony sound determining means for the pitch of the vocal sound. A karaoke apparatus comprising: pitch conversion means for converting the pitch so that the pitch becomes equal to the pitch of the karaoke music.