JP4267513B2 - Karaoke recording device - Google Patents

Description

  The present invention relates to a karaoke recording apparatus, and more particularly, to a karaoke recording apparatus that can record accompaniment music with the same key as the original song of karaoke music even if the key of the karaoke music is changed.

  The karaoke recording device is configured by combining a karaoke device with a CD recorder or the like. The karaoke recording device mixes and records karaoke accompaniment music and the user's singing voice, and records it as a karaoke song recording work on a CD-ROM or the like. Since the karaoke apparatus has a well-known key control function, a user can change a desired karaoke piece to a key that is easy for him to sing and perform a karaoke song recording work.

  The karaoke song recording produced by changing the key has a different key, and the emotion and quality of the music work can be easily understood by comparing it with the original work of the same song (a work sung by a professional singer). It has become altered and is often unsatisfactory for the karaoke song recording producer (singer). Enthusiastic karaoke enthusiasts want to make their own high-quality karaoke song recordings without changing the key of the original work.

  The present invention has been created to solve the above problems. An object of the present invention is to provide a karaoke recording apparatus capable of recording accompaniment music performed with an original music key and singing voice sung along with the karaoke accompaniment music without playing the original music key. Yes.

The karaoke recording apparatus of the present invention comprises a reproducing means for reproducing recorded data of karaoke accompaniment music,
A first pitch shifter for changing the key of the reproduced accompaniment music and outputting sound;
A second pitch shifter that changes and outputs the key of the singing voice input to the microphone;
Recording means for mixing and recording the output of the playback means and the output of the second pitch shifter;
Control means for setting a key shift amount complementarily to the first pitch shifter and the second pitch shifter is provided.

A first playing means for playing electronic musical score data of karaoke accompaniment music according to a standard key value;
Second performance means for performing the same karaoke accompaniment music according to different key values in synchronization with the first performance means;
A pitch shifter that changes the key of the singing voice input to the microphone and outputs it,
Recording means for mixing and recording the output of the first performance means and the output of the pitch shifter;
The karaoke recording apparatus may include a control unit that sets a difference between the key value of the first performance means and the key value of the second performance means in the pitch shifter.

  According to the karaoke recording apparatus of the present invention, even if singing the karaoke accompaniment music with a key that is easy for a singer to sing, the accompaniment music performed with the key of the original work and the singing voice as if sung along with it can be recorded. .

=== Configuration of Karaoke Recording Device ===
The karaoke recording apparatus in the embodiment of the present invention is realized as one function of the karaoke apparatus. FIG. 1 shows a functional block configuration of a karaoke apparatus in which the function of the karaoke recording apparatus is implemented. The karaoke apparatus 1 has almost the same hardware configuration as a performance terminal of a known communication karaoke system. The hard disk device 12 stores, for many karaoke songs, karaoke data including accompaniment music data mainly composed of MIDI data and lyric rendering data as a generation origin of the lyric image. Also stored are moving image data for a long time in a predetermined format, script data defining a processing sequence of moving image data (storage location and processing order of moving image data to be processed, etc.), and the like.

  When the operation control unit 13 receives a music number input to the remote control transmitter 25 or the operation panel 14, the operation control unit 13 transfers the number to the central control unit 11. The central control unit 11 stores the music number in an internal RAM and manages it in a performance processing queue. Then, the music numbers are sequentially extracted from the queue, the corresponding karaoke data is read from the hard disk device 12, and the accompaniment music data in the karaoke data is transferred to the synthesizer unit 19 to generate accompaniment music.

  On the other hand, with regard to the lyric rendering data, the lyric image in which the portion to be sung is changed in color in synchronization with the accompaniment music is sequentially developed in the video RAM 16 as a bitmap. Also, predetermined moving image data is sequentially transferred to the video controller 17 in a predetermined order based on the script data, and the background moving image of the lyrics image is decoded.

  The mixing amplifier 20 mixes and amplifies the accompaniment music and the singing voice input to the microphone 22 and outputs the sound from the speaker 21. The video control unit 17 superimposes the lyric image on the decoded moving image and outputs it on the display 18.

  The karaoke apparatus 1 has a well-known key control function. When the key value is designated by the user input, the central control unit 11 changes the MIDI data note number by a pitch according to the key value. The changed MIDI data is transferred to the synthesizer unit 19. Thereby, the key of the accompaniment music is changed and the sound is output.

  The karaoke apparatus 1 further includes a pitch shifter 24 for changing the pitch of the singing voice input to the microphone 22. The pitch shifter 24 samples the audio signal input from the microphone 22 in real time and converts it into digital audio data, and sequentially extracts the singing voice pitch (frequency, floor name, etc.) from the audio data. Then, data obtained by frequency-converting the singing voice pitch is generated, and the frequency-converted sound data is converted into an analog sound signal and output.

=== Recording function ===
The karaoke apparatus 1 has a configuration that functions as a karaoke recording apparatus. The karaoke recording apparatus according to the present embodiment has a recording function for making accompaniment music and a singing voice of a singer singing along with it into a recording file for each music piece. The recorded file may be stored in an appropriate storage resource outside the karaoke apparatus 1 such as being transferred to a medium such as a CD-R as a recorded work. The audio signal processing unit 23 samples a mixed acoustic signal of the accompaniment music of the requested song from the synthesizer unit 19 and the singing voice input to the microphone 22 and performs A / D conversion to digital audio data. When the performance start timing information is received from the central control unit 11, the digital audio data is transferred to the central control unit 11. The central control unit 11 stores the digital audio data in an internal RAM or the like, and when the performance is completed, creates the audio data in a data file of an appropriate format such as a WAVE file.

  In addition, the recording function in this embodiment records accompaniment music performed with the original key and singing voice that sang along with it, without playing the accompaniment music with the original key (original key). can do. Specifically, as shown in FIG. 2, the synthesizer unit 19 includes two sound sources 19 a and 19 b, and includes an accompaniment music key (performance key) for sound output from the speaker 21 and an audio signal processing unit 23. The key of the accompaniment music to be input can be variably controlled independently.

  By the way, some karaoke songs are played with a key that is different from the original song key even if the user does not change the key, considering the difference in the sound range generated by professional singers and general karaoke singers. For such music, an original music key value for playing accompaniment music with the original music key is associated with the corresponding music and stored in the hard disk device 11. . When the central control unit 11 receives a recording instruction for the requested music piece by user input, the central control unit 11 drives one sound source 19a to generate accompaniment music for recording with the same key as the original music piece. For example, if the original music key value of the music is A, one sound source 19a is driven by MIDI data whose note number is changed based on the value. Further, the other sound source 19b is driven according to the key value designated by the user to generate accompaniment music for sound output. Further, the central control unit 11 controls the pitch shifter 24 to set the key shift amount of the singing voice to the difference between the performance key and the original music key. That is, if the original music key value is A and the performance key value designated by the user is B, the key is shifted by the pitch corresponding to the key value AB. Thereby, the key of the singing voice matches the key of the original music, and the singing voice that sings correctly according to the key of the original music is recorded. As a result, the accompaniment music that is acoustically output is played with keys that are easy to sing specified by the user, the accompaniment music that is recorded is played with the keys of the original song, and the singing voice that is input to the microphone 22 is output as sound At the same time, the singing voice whose pitch is displaced by the pitch shifter 24 so as to match the original music key is recorded. Therefore, it is possible to sing well by singing with the performance keys that are easy to sing, and the recorded accompaniment music and singing voices are the ones performed with the original music keys and the singing voices sung along with them. As a result, when the recorded voice is played back, the key difference between the recorded accompaniment music and the original song, the singing voice sung by the original singer and the singing voice sung in accordance with the changed performance key There is no sense of incongruity due to differences.

=== Karaoke recording device for playback type karaoke device ===
There is also a type of karaoke apparatus that reproduces data in which accompaniment music actually played such as MP3 format is recorded. In this playback type karaoke apparatus, unlike MIDI data, the pitch of each sound is not described in the recording data, so the configuration for changing the key of the accompaniment music is the configuration of the above embodiment. Different.

  FIG. 3 shows a functional block configuration for recording an accompaniment music with an original music key while outputting an accompaniment music with a key easy to sing in a karaoke recording apparatus for a reproduction type karaoke apparatus. The music reproducing means 30 reproduces the recorded data as an analog audio signal and outputs it. The reproduced signal is branched into two paths. One is accompaniment music performed with the original music key, and is input to the mixing means B32b as a recording target. The other is input to the pitch shifter A31a, converted into an audio signal adjusted to a key matched to the user's key, and input to the mixing means A32a.

  The singing voice signal input to the microphone 34 is also branched into two paths. One is directly input to the mixing means A32a, mixed with the key-adjusted accompaniment music, and output from the speaker 33 as sound. In the middle of the other signal path from the microphone 34, there is a pitch shifter B31b that converts the key of the singer into the key of the original music. The singing voice signal converted by the pitch shifter B31b is input to the mixing means B32b as a recording target. The mixing means B32b mixes the accompaniment music performed with the original music key and the singing voice converted into the original music key. The mixed audio signal is input to a recording device such as a CD-R recorder or stored in an appropriate storage resource via a processing means for creating a recording file such as an audio signal processing unit in the above embodiment. Or just record it.

=== Acoustic output of accompaniment music ===
The karaoke recording apparatus of the present invention does not need to mix the singing voice input with the microphone and the accompaniment music and output the sound from the speaker. For example, the accompaniment music may be acoustically output to headphones, and the singer may sing while listening to the accompaniment music from the headphones. That is, the accompaniment music and the singing voice may be output from individual sound output systems. Of course, for the purpose of recording, it is not always necessary to output the singing sound.

It is a functional block diagram of the karaoke apparatus in the Example of this invention. It is a principal part block diagram in connection with the recording function in the said karaoke apparatus. It is a principal part block diagram in connection with the recording function of the karaoke apparatus in the other Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Karaoke apparatus 11 Central control part 12 Hard disk apparatus 19 Synthesizer 20 Mixing amplifier 23 Audio | voice signal processing part 24, 31a, 31b Pitch shifter 30 Music reproduction means 32a, 32b Mixing means

Claims (2)

Replay means for replaying recorded data of karaoke accompaniment music;
A first pitch shifter for changing the key of the reproduced accompaniment music and outputting sound;
A second pitch shifter that changes and outputs the key of the singing voice input to the microphone;
Recording means for mixing and recording the output of the playback means and the output of the second pitch shifter;
A karaoke recording apparatus comprising: control means for setting a key shift amount complementary to the first pitch shifter and the second pitch shifter. First performance means for performing electronic musical score data of karaoke accompaniment music according to standard key values;
Second performance means for performing the same karaoke accompaniment music according to different key values in synchronization with the first performance means;
A pitch shifter that changes the key of the singing voice input to the microphone and outputs it,
Recording means for mixing and recording the output of the first performance means and the output of the pitch shifter;
Control means for setting the difference between the key value of the second performance means and the key value of the first performance means in the pitch shifter;
Karaoke recording device equipped with.

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