JP3900576B2 - Music information playback device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a music information reproducing apparatus used as a karaoke apparatus or the like.
[0002]
[Prior art]
With the advance of technology, the form of providing music has also diversified. For example, music was provided exclusively by records a decade ago, but now music is provided by a variety of recording media such as compact discs. Advances in communication technology have also enabled music to be provided to listeners with high quality. Especially in recent satellite broadcasting, many kinds of music are provided with extremely excellent sound quality by utilizing data compression technology and the like.
[0003]
[Problems to be solved by the invention]
The music provided to the consumer as described above is generally composed of a plurality of parts such as a melody, a rhythm, and a vocal, except for special cases such as solo music. Then, a song as a single finished product including all these parts is provided to the consumer in the various forms described above. In karaoke and the like, music lacking vocals is provided using communication or a recording medium, but for consumers, songs without vocals are provided as one complete product from the beginning. Not too much.
[0004]
In this way, music is provided to consumers in a single unit of music, but there are many ways to enjoy music that consumers want, not only as a finished product but also as a 1 or There is also a demand to enjoy the performance of multiple parts. Further, in this case, the combination of parts that the consumer desires varies depending on the consumer even when listening to the same song.
[0005]
It would be convenient if the customer side could enjoy combining any part of the music provided from the provider side, but no technical means suitable for this significance has been provided. Therefore, the inventor of the present application diligently studied the technical means suitable for this significance, but came to face a problem that is difficult to solve in this examination. In other words, when each part such as melody, rhythm, vocal, etc. is separated and provided to each customer, it is necessary for the consumer to perform synchronized playback of each part so that the playback of each part proceeds in line with each other. However, there is a problem of how to realize such a synchronized reproduction of a plurality of parts. Here, if only event information such as MIDI is to be provided to the consumer, there is a way to use a technology that has already been put to practical use in communication karaoke. However, the information provided to the consumer includes encoded data of continuous waveforms such as vocals. In order to construct technical means suitable for the above significance, means for synchronizing such reproduction processing of encoded data and reproduction processing of other part data (for example, MIDI event) is required. No means are currently provided.
[0006]
The present invention has been made in view of the circumstances described above, and provides a music information reproducing apparatus capable of arbitrarily combining music information provided from the provider side on the consumer side and reproducing them in synchronization with each other. It is intended to provide.
[0007]
[Means for Solving the Problems]
  According to the first aspect of the present invention, there is provided an input means for inputting music information including encoded digital data of each block obtained by dividing a speech waveform constituting a song and timing information for specifying a reproduction timing of the encoded digital data of each block; ,
  Reproduction means for performing reproduction processing of encoded digital data in the music information input by the input means;
  A time measuring means for measuring elapsed time;
  Based on the elapsed time measured by the time measuring means, the encoded digital data of each block in the music information input by the input means is reproduced at the timing specified by the timing information corresponding to the encoded digital data. The reproduction means is instructed to reproduce the encoded digital data of each blockMeans,
  The reproduction means has two reproduction systems for reproducing the encoded digital data, and sequentially executes reproduction processing of the encoded digital data of each block by alternately using each reproduction system for each block. If the playback processing of the subsequent block is started before the playback processing of the preceding block is completed, the signals obtained by the playback processing are combined during the period in which each playback processing is repeated. Output whatThe gist of the present invention is a music information reproducing apparatus.
[0008]
  The invention according to claim 2 is characterized in that the input means is the music information transmitted by satellite broadcasting.NewsThe gist of the music information reproducing apparatus according to claim 1, further comprising satellite broadcast receiving means for receiving.
[0009]
  According to a third aspect of the present invention, the input means includes the music information recorded on a recording medium.NewsThe music information reproducing apparatus according to claim 1, further comprising a reading unit.
[0011]
  Claim4The invention according to the present invention relates to a material constituting a song or a material accompanying the song.IsInput means for inputting a plurality of pieces of music information and identification information for identifying the music to which each piece of music information belongs and correlating each piece of music information belonging to the same song;
  SaidOf the music information input by the input means, music information comprising the encoded digital data of each block obtained by dividing the speech waveform constituting the song and the timing information specifying the reproduction timing of the encoded digital data of each block Of encoded digital dataPlayback means for performing playback processing;
  A time measuring means for measuring elapsed time;
  When there is an instruction to reproduce a specific song, one or more pieces of music information corresponding to the specific song are obtained based on each piece of identification information associated with each piece of music information input by the input means. Selection reproduction control means for selecting and instructing the reproduction means to reproduce the music information.,
  in frontThe music information including the encoded digital data and timing information, the selective reproduction control means, the encoded digital data of each block is converted into the encoded digital data based on the elapsed time measured by the time measuring means. Command the playback means to play back the encoded digital data of each block so that it is played back at the timing specified by the corresponding timing informationAnd
  The reproduction means has two reproduction systems for reproducing the encoded digital data, and sequentially executes reproduction processing of the encoded digital data of each block by alternately using each reproduction system for each block. If the playback processing of the subsequent block is started before the playback processing of the preceding block is completed, the signals obtained by the playback processing are combined during the period in which each playback processing is repeated. Output whatThe gist of the present invention is a music information reproducing apparatus.
[0012]
  Claim5The invention according toin frontThe selective reproduction control meansIn the reproduction meansEach playbacksystemBased on the processing delay of the playback processing performed bysystemThe timing for instructing the reproduction process to be corrected is corrected.4The gist of the music information reproducing apparatus described in the above.
[0013]
  Claim6The present invention includes music information storage means for storing the music information in association with the identification information, and the selective reproduction control means is stored by the music information input by the input means or the music information storage means The music information corresponding to the specific song is selected from music information.4Or5The gist of the music information reproducing apparatus described in the above.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, for easier understanding of the present invention, a music information providing system according to an embodiment of the present invention will be described with reference to the drawings. In addition, this embodiment shows one aspect | mode of this invention, This invention is not limited, It can change arbitrarily in the scope of the present invention.
[0015]
The music information providing system according to the present embodiment includes a provider that provides music information that represents material constituting a song or music information that represents material associated with a song, and a consumer who obtains this music information and plays the song. Consists of.
[0016]
On the provider side, the music is divided into several components (materials) such as vocal and back music, and music information expressing each is created. In addition, although not a constituent element of a song, for example, a song attached to a song such as lyrics is handled in the same manner, and music information is created for the lyrics. Each piece of music information created in this way is supplied to the consumer together with identification information indicating that each belongs to the same song.
[0017]
1 and 2 illustrate music information and identification information supplied from the supplier side in the present embodiment.
[0018]
First, in the example shown in FIG. 1, one piece of music is divided into vocals and other parts, and data including vocal data expressing vocals and other pieces of music data and lyrics data are supplied as music information. Is.
[0019]
Here, tags TAG1 and TAG2 are added to the head of each music information. These tags TAG1 and TAG2 include identification information indicating that each piece of music information relates to the same music.
[0020]
Next, in the example shown in FIG. 2, one piece of music is divided into male vocals, female vocals, and n musical instrument performance parts, and vocal data or song data representing each is supplied as music information. . In this example, the music information shown at the bottom of the drawing includes lyrics data and the like in addition to the song data of the nth part.
[0021]
As in the case of FIG. 1 above, tags TAG1-1 and TAG1-2 are added to male vocal data and female vocal data, and TAG2-1 to TAG2-n are added to n pieces of music data. It is clarified that each piece of music information belongs to the same song by a tag (specifically, identification information included in the tag).
[0022]
In each piece of music information, the vocal data includes a tag including the above identification information, and a synchronization tag for reproducing a vocal sound at a timing in accordance with the progress of the song (not shown). Details thereof will be described later. Details of vocal data, song data, etc. will also be described later.
[0023]
As described above, in the present embodiment, each piece of music information is supplied to the consumer together with identification information indicating which song each belongs to. Therefore, even if each piece of music information is supplied to the consumer through a separate route, the consumer side identifies each tag by adding a tag added to the head of each piece of music information. You can know that it belongs to music. In other words, in the past, a song was provided to a consumer as a single finished product, but in this embodiment, the material constituting the song or the material accompanying the song is recognized as a finished product. Are provided to consumers independently. If the individual materials are combined appropriately, it will constitute a song that is another finished product, but what materials are combined can be determined arbitrarily by the customer based on the tags attached to each. It's good.
[0024]
As shown in FIGS. 1 and 2, the identification information may be supplied separately to the music information as well as the music information, or may be supplied separately from the music information. For example, a notice such as “send music information at what time and in minutes” may be given, and the music information may be transmitted at the scheduled time. In this case, the content of the advance notice made in advance is the identification information. In short, the music information and the identification information need only be supplied in association with each other so that the music information can be associated with the identification information on the consumer side, and it is not always necessary to supply both as one.
[0025]
Music information and identification information are supplied from a provider to a consumer in the following form, for example.
a. Recording and shipping music information and tags on a recording medium
As the recording medium, for example, a CD (compact disc), an MD (mini disc), or the like can be considered.
b. A form in which music information and tags are transmitted by communication means
Various forms of communication are conceivable, and either wireless communication or wired communication can be used. For example, music information or the like may be transmitted to an unspecified number of consumers by wireless communication means such as satellite broadcasting, or may be supplied to a specific consumer through a wired line.
c. A specific type of music information of one song is recorded on a recording medium and shipped, and other types of music information are transmitted by communication means.
[0026]
Next, the consumer side device will be described. FIG. 3 is a block diagram showing the configuration of the music information reproducing apparatus according to this embodiment. The music information reproducing apparatus according to the present embodiment is used as a karaoke apparatus, and has a satellite broadcast receiving unit 1 and a CD reproducing unit 2 as the above-described music information input means. This music information reproducing apparatus receives each music information shown in FIG. 1 by these means and reproduces it as music.
[0027]
The satellite broadcast receiver 1 is means for receiving and demodulating music information and tags broadcast from communication satellites. In the present embodiment, music information including song data, lyrics data, and hammer control data is broadcast from a communication satellite together with a tag and received by the satellite broadcast receiving unit 1. Here, the song data is time-series data for generating instrument sounds and chorus sounds constituting the song, and MIDI events for instructing the pronunciation of instrument sounds and ADPCM (adaptive predictive coding) representing chorus sound waveforms. The data and the ADPCM playback event for instructing the chorus sound are mixed. The specific contents of the song data, the lyrics data, and the hammer control data will be described later.
[0028]
  The CD playback unit 2 is means for reading information from a CD. On the recording surface of the CD handled by the CD reproducing unit 2, vocal data obtained by encoding a vocal sound waveform at a predetermined sampling frequency and further performing compression processing is recorded together with a tag. CD playback unit 2Recording / playbackUnder the control of the unit 4, the vocal data is read from the CD, and the vocal data is subjected to expansion processing, thereby outputting linear PCM data representing the vocal sound. The CD playback unit 2 outputs the vocal data as it is without performing the decompression process, and records it.RecordThe playback unit 4 may be configured to perform vocal data expansion processing.
[0029]
The HD (hard disk) drive unit 3 is means for storing music information and tags acquired by the satellite broadcast receiving unit 1 in the HD and reproducing from the HD under the control of the recording / playback unit 4.
[0030]
The recording / reproducing unit 4 is the most characteristic means of this music information reproducing apparatus, and mainly performs the following functions.
[0031]
a. Function to save music information in HD by tag
Music information and tags are received from the satellite broadcast receiving unit 1, are associated with each other, and are stored in the HD by the HD driving unit 3.
[0032]
b. Playback of music information
  In the HD, song data, lyric data, and hammer control data of each song are stored in a state associated with a tag that identifies the song to which each song belongs. In addition, on the CD, vocal data of each song is stored in a state in which the vocal data is associated with a tag that identifies the song to which each song belongs. When a song to be played is specified by operating an operation unit (not shown),RecordThe playback unit 4 obtains a tag corresponding to the song. Then, by sending a command to the HD drive unit 3 or the CD playback unit 2, music information such as song data and vocal data associated with the tag is selected and played back from the HD and CD. Here, the music data read from the HD includes ADPCM data of chorus sound, but this ADPCM data is decoded into linear PCM data by the recording / reproducing unit 4.
[0033]
In this music information reproducing apparatus, a part to be reproduced can be designated by operating an operation unit (not shown). When this part is designated, the recording / reproducing unit 4 sends an instruction to the HD driving unit 3 or the CD reproducing unit 2 to reproduce only the music information of the designated part from the HD or CD.
[0034]
The control of the reproduction timing of each music information described above from the CD or HD will be described later.
[0035]
c. Sorting music information played from HD or CD
Vocal sound linear PCM data is reproduced from the CD. In addition, music data, lyrics data, and hammer control data are reproduced from the HD. The recording / reproducing unit 4 distributes each piece of information to an appropriate device. More specifically, the CD playback unit 2 outputs vocal PC linear PCM data, and the recording / playback unit 4 supplies this to the vocal DSP 6. The song data read by the HD drive unit 3 includes a MIDI event and chorus sound ADPCM data. The MIDI event is supplied to the sound source 7, and the ADPCM data is converted into linear PCM data for back music. Supply to DSP5. The lyrics data is supplied to the image processing unit 8, and the hammer control data is supplied to a vocal adapter (not shown).
[0036]
Next, each device for processing the music information distributed by the recording / reproducing unit 4 in this way will be described.
[0037]
First, the back music DSP 5 and the vocal DSP 6 perform various processes on the chorus sound and vocal sound linear PCM data reproduced via the recording / reproducing unit 4 as necessary. For example, when this music information reproducing apparatus is used as a karaoke apparatus, there is a case where the user is instructed to change the key. In such a case, each of these DSPs performs linear PCM according to the instructed key. Change the pitch period of the data.
[0038]
Next, the sound source 7 is a so-called MIDI sound source and forms a musical sound signal in accordance with a MIDI event reproduced via the recording / reproducing unit 4. The image processing unit 8 generates lyric image information according to the lyric data, synthesizes image information reproduced from a video reproduction device (not shown) and the lyric image information, and supplies the combined information to the television receiver 9. As a result, an image obtained by superimposing the lyrics on the video image is displayed on the television receiver 9.
[0039]
The mixer 10 receives the output signals of the back music DSP 5, vocal DSP 6, and sound source 7, and also inputs digital audio signals via a microphone, an A / D converter, and a vocal adapter (all not shown). Is done. The mixer 10 mixes these signals and outputs them from the sound system 11 as sound.
[0040]
Next, FIG. 4 shows the lyric data, the hamori control data and the song data reproduced from the HD, and the vocal data reproduced from the CD in time series. Each piece of music information is slightly different from each other, but material information that represents the material itself, such as lyrics and sounds, and this material information as materials (that is, as lyrics that can be grasped visually or sounds that can be grasped by hearing) ) Common in that it is composed of timing information that designates the timing of output to the outside. Hereinafter, with reference to FIG. 4, the details of the operation of reproducing the music information by the recording / reproducing unit 4 will be described.
[0041]
The lyric data is data obtained by chronologically organizing a lyric display event for instructing the image processing unit 8 to display lyrics and duration data Δt for designating a waiting time until the execution timing of the event.
[0042]
At the time of reproducing the music, the recording / reproducing unit 4 sequentially reproduces the duration data Δt and the lyrics display event from the HD while measuring the elapsed time by a timing unit (not shown), and waits for the passage of the time corresponding to the duration data Δt. The operation of supplying the lyric display event to the image processing unit 8 is repeated.
[0043]
Here, one lyric display event is a time series of a series of commands such as a lyric display command, a coloring command, a color erasing command,..., A coloring command, and a lysing command. These series of commands are sequentially supplied to the image processing unit 8 by the recording / reproducing unit 4. As a result, first or second line of lyrics is displayed on the television receiver 9, then the first word of the lyrics is colored, then the second word is colored, and so on. At the same time, lyrics are displayed and words to be uttered are colored.
[0044]
The hammer control data and the song data are basically time series data having the same configuration as the lyrics data. First, the hammer control data includes a hammer control event that specifies the pitch of the hammer part (chorus part) and duration data Δt.
[0045]
At the time of reproducing the music, the recording / reproducing unit 4 sequentially reproduces the duration data Δt and the hammer control event from the HD while measuring the elapsed time by the time measuring means, and waits for the passage of the time corresponding to the duration data Δt, and then the subsequent hammer. The operation of supplying a control event to a vocal adapter (not shown) is repeated. The supply of the hammer control data is performed in parallel with the supply of the lyric data to the image processing unit 8, and the control of the supply timing is performed using the same timing means as in the case of the lyric data.
[0046]
In the vocal adapter, the vocal sound signal input from the microphone is pitch-shifted according to the hamori control event, and a vocal sound signal corresponding to the pitch of the hamori part is generated. This sound part vocal sound signal is input to the mixer 10 together with the original vocal sound signal.
[0047]
The song data is composed of a MIDI event, an ADPCM playback event, duration data Δt, and an ADPCM data table.
[0048]
The MIDI event is an event for instructing the sound source 7 to form a specific musical sound signal. The ADPCM data table is a table composed of ADPCM data corresponding to various chorus sounds. The ADPCM playback event is an event for instructing playback of ADPCM data of a specific chorus sound in the ADPCM data table.
[0049]
The execution timing of the MIDI event is determined by the duration data Δt as in the case of the lyrics display event and the hammer control event. That is, each MIDI event is sent to the sound source 7 when a time corresponding to the duration data Δt placed before the MIDI event has passed, and is output as a sound.
[0050]
The ADPCM playback event is basically played back as a sound at the timing determined by the duration data Δt. However, since this playback process takes a certain amount of time, the time is required before the sound playback timing. Start with a margin. That is, prior to outputting a sound corresponding to an ADPCM playback event from the sound system 11, ADPCM data corresponding to the event is read from the ADPCM data table and converted to linear PCM data. The linear PCM data is sent to the back music DSP 5 and output from the sound system 11 as a chorus sound. The ADPCM data is read in advance so that the chorus sound is output at the timing determined by the duration data Δt. In FIG. 4, corresponding to three ADPCM playback events, ADPCM data of three chorus sounds are read from the ADPCM data table, and each chorus sound generated from each of these ADPCM data is represented by each ADPCM playback event. A state of output at the execution timing is shown.
[0051]
The lyric display event, the hammer control event, the MIDI event, and the ADPCM playback event described above are all controlled by using a common time measuring means (timing finally output as sound or image). Therefore, the lyrics display, the musical sound, and the chorus sound are reproduced as the music progresses.
[0052]
The recording / reproducing unit 4 controls the reproduction of vocal data by the CD reproducing unit 2 in parallel with the reproduction of the music information in the HD described above. Here, the vocal data is reproduced from the CD by the CD reproducing unit 2 which is a reproduction system different from the HD driving unit 3. Further, since the vocal data in the CD has been subjected to compression processing, it is decompressed during reproduction. Therefore, even if the reproduction of vocal data by the CD reproduction unit 2 is started at the same time as the reproduction of music information from the HD, if the song takes a long time, for example, as the song progresses, the vocal gradually begins with the back music. A situation such as delay may occur.
[0053]
Therefore, in this embodiment, a synchronization tag is inserted in advance in vocal data for one song in advance, and synchronization control using this synchronization tag is performed when reproducing vocal data. Thus, the vocal sound corresponding to the vocal data is reproduced at a timing that matches the progress of the song. Hereinafter, the synchronization control using the synchronization tag will be described.
[0054]
First, as shown in FIG. 4, the vocal data recorded on the CD is composed of a plurality of blocks of an appropriate size, and a synchronization tag T is placed at the head of each block.₀, T₁, T₂, ... are added. Normally, humans take a breath even when singing a song, so that a vocal sound for one song can be divided into a plurality of blocks of sound waveforms of an appropriate length. Therefore, a block of vocal data is created for each block of these speech waveforms, and a tag is added to each block. Each tag T₀, T₁, T₂,... Includes timing information for designating the timing at which a vocal sound corresponding to each added vocal data is to be reproduced, that is, how many seconds after the music reproduction is started.
[0055]
The recording / playback unit 4 reads and decompresses vocal data from the CD in units of blocks by the CD playback unit 2 in parallel with playback of other music information from the HD. Then, each of the linear PCM data obtained thereby is synchronized with the synchronization tag T added to each original vocal data.₀, T₁, T₂,... Are sequentially supplied to the vocal DSP 6 at a timing corresponding to the timing information in the. The control of the supply timing of the linear PCM data is performed by using the time measuring unit used in the control of the execution timing of the above-described MIDI event or the like. Here, there is a certain delay time from when the instruction to read the vocal data of each block is given to the CD reproducing unit 2 until the linear PCM data corresponding to the block is output. Therefore, the recording / reproducing unit 4 includes₀, T₁, T₂When the linear PCM data corresponding to each block with... Is reproduced, the reproduction instruction of each block is sent to the CD reproducing unit 2 before the reproduction timing by the delay time. By performing such timing control, the reproduction of the vocal sound is advanced in synchronization with the reproduction of other music information.
[0056]
If the vocal sound persists for a long time without breathing, the recorded vocal sound waveform is divided into several blocks, and a synchronization tag is added to each block to create a CD. Need to record. In the example shown in FIG.₁And T₂These blocks are drawn in a state of being temporally continuous, but these are those obtained by dividing the original continuous vocal sound waveform into two parts and recording them on a CD as vocal data.
[0057]
In this way, when reproducing a block of vocal data continuous in time, if the time required for decompression processing of each vocal data is uneven, each linear PCM data corresponding to each vocal data is not reproduced continuously. It becomes.
[0058]
For example, in the example shown in FIG.₁Since the extension processing of the preceding vocal data to which the tag is added has been completed early, the tag T₂Until the decompression processing result of the subsequent vocal data to which the is added is obtained, the linear PCM data is not reproduced at all.
[0059]
Further, in FIG.₁An example is shown in which the extension processing of the preceding vocal data to which the above is added has been prolonged. In this example, the tag T₂The output of the preceding linear PCM data has not yet been completed at the time when the decompression process of the subsequent vocal data to which “1” is added is started and the output of the linear PCM data is started. Therefore, in this case, it is necessary to forcibly stop the output of the preceding linear PCM data, but if this is stopped, annoying noise will be generated in the reproduced vocal sound.
[0060]
Therefore, in the present embodiment, two playback systems are provided in the CD playback unit 2, and the above problems are dealt with by using these playback systems.
[0061]
First, vocal data read from a CD is decompressed by alternately using two playback systems in units of blocks. As shown in FIG. 5, when the preceding block decompression process ends early, as shown by the broken line, the preceding block decompression process is continued until the subsequent block decompression process is started. This is performed in an extended manner (for example, linear PCM data of the last sound is repeatedly output).
[0062]
On the other hand, when the preceding vocal data decompression process is prolonged, the preceding vocal data decompression process and the subsequent vocal data decompression process are temporally overlapped by the two playback systems. Therefore, during this overlap period, as indicated by a broken line in FIG. 6, the level of the linear PCM data obtained from the preceding vocal data is gradually attenuated, while the level of the linear PCM data obtained from the subsequent vocal data is reduced. The level is gradually increased from the 0 level, and each linear PCM data is mixed and output from the CD reproducing unit 2. This is a so-called crossfade. By performing this crossfade, the preceding linear PCM data is naturally transferred to the later one, and generation of annoying noise is prevented.
[0063]
As described above, according to the present embodiment, the music information of each part associated by the tag can be synchronously reproduced in accordance with the progress of the song. In the above description, the case where all music information in the CD and HD is reproduced is taken as an example. However, as already described, in this music information reproducing apparatus, a part to be reproduced can be designated. Therefore, for example, when a part excluding vocals is designated as a part to be reproduced, only the lyrics data, song data, and hammer control data in the HD are reproduced, and an operation as a karaoke apparatus is obtained. Further, in the above embodiment, the case where one kind of music data is reproduced has been taken as an example. However, when music data for a plurality of parts with the same tag is stored in the HD, all of them are stored. Are reproduced in parallel. Of course, it is also possible to reproduce only the music data of a specific part instead of all parts.
[0064]
The scope of application of the present invention is not limited to the above-described embodiment, and the following various modifications can be considered.
(1) When a HD having a large storage capacity can be used, vocal data is read from the CD and stored in the HD, and all necessary music information including the vocal data is read from the HD. Also good. In this case, since all music information is synchronously reproduced by one reproduction system, there is an advantage that timing control becomes easy.
[0065]
(2) As music data, data including only MIDI data (eg, ADPCM data in the above-described embodiment) that does not include a MIDI event and encodes a voice waveform may be used. In this case, it is only necessary to output the music data as it is.
[0066]
(3) In the music information reproducing device in the above embodiment, the same tag is attached regardless of whether the music information is provided from the same provider or from a plurality of different providers. As long as the music information is recorded, it is handled as belonging to the same song. Therefore, if a tag to be used for each song is decided between a plurality of providers providing music information, even if the customer plays the same song, it is provided by various providers. The music information of a song can be selected and played according to preference.
[0067]
(4) In the above-described embodiment, an example in which vocal data is recorded and supplied on a CD has been described as an example, but may be supplied by satellite broadcasting.
[0068]
【The invention's effect】
As described above, according to the present invention, music information such as back music, vocals, and lyrics provided from the provider side can be arbitrarily combined on the consumer side, and each music information can be reproduced in synchronization. Therefore, there is an effect that it can respond to various demands for music.
[Brief description of the drawings]
FIG. 1 is a diagram showing a supply form of music information according to an embodiment of the present invention.
FIG. 2 is a diagram showing another example of the supply form.
FIG. 3 is a block diagram showing a configuration of a music information reproducing apparatus according to an embodiment of the present invention.
FIG. 4 is a time chart showing the operation of the embodiment.
FIG. 5 is a time chart showing vocal data reproduction processing in the embodiment;
FIG. 6 is a time chart showing vocal data reproduction processing in the embodiment;
[Explanation of symbols]
1 ... Satellite broadcast receiver,
2 ... CD player
3. HD drive unit (music information storage means) (End of input means)
4. Recording / playback unit (selective playback control means)
5 …… Back music DSP,
6 ... DSP for vocals, 7 ... Sound source, 8 ... Image processing unit,
9 …… TV receiver (reproduction means)

Claims (6)

Input means for inputting music information composed of encoded digital data of each block obtained by dividing a speech waveform constituting a song and timing information for specifying reproduction timing of the encoded digital data of each block;
Reproduction means for performing reproduction processing of encoded digital data in the music information input by the input means;
A time measuring means for measuring elapsed time;
Based on the elapsed time measured by the time measuring means, the encoded digital data of each block in the music information input by the input means is reproduced at the timing specified by the timing information corresponding to the encoded digital data. Means for instructing the reproduction means to reproduce the encoded digital data of each block as described above ,
The reproduction means has two reproduction systems for reproducing the encoded digital data, and sequentially executes reproduction processing of the encoded digital data of each block by alternately using each reproduction system for each block. If the playback processing of the subsequent block is started before the playback processing of the preceding block is completed, the signals obtained by the playback processing are combined during the period in which each playback processing is repeated. A music information reproducing apparatus characterized in that the output is output . It said input means, the music information reproducing apparatus according to claim 1, characterized in that it comprises a satellite receiving means for receiving the music information transmitted by satellite. Said input means, the music information reproducing apparatus according to claim 1, characterized in that it comprises means for reading said music information recorded on the recording medium. A plurality of pieces of music information which is a material constituting a song or a material attached to a song, and identification information for identifying a song to which each piece of music information belongs and correlating each piece of music information belonging to the same song Input means for inputting;
Of the music information input by the input means, music information comprising encoded digital data of each block obtained by dividing a speech waveform constituting a song, and timing information designating the reproduction timing of the encoded digital data of each block Reproducing means for performing reproduction processing of encoded digital data ,
A time measuring means for measuring elapsed time;
When there is an instruction to reproduce a specific song, one or more pieces of music information corresponding to the specific song are obtained based on each piece of identification information associated with each piece of music information input by the input means. And a selection reproduction control means for selecting and instructing the reproduction means to reproduce the music information ,
Before Symbol selection reproduction control means, wherein the music information including encoded digital data and timing information, based on the elapsed time measured by said time measuring means, the coded digital data is the coded digital data of each block The reproduction means is instructed to reproduce the encoded digital data of each block so that it is reproduced at the timing specified by the timing information corresponding to
The reproduction means has two reproduction systems for reproducing the encoded digital data, and sequentially executes reproduction processing of the encoded digital data of each block by alternately using each reproduction system for each block. If the playback processing of the subsequent block is started before the playback processing of the preceding block is completed, the signals obtained by the playback processing are combined during the period in which each playback processing is repeated. Output what
Music information reproducing apparatus according to claim and this. Before Symbol Selection regeneration control means, based on the processing delay of the playback processing performed by each of the reproduction system of the reproducing device, in claim 4, characterized in that for correcting the timing of an instruction to play back process to the regeneration system The music information reproducing apparatus described. Music information storing means for storing the music information in association with the identification information, wherein the selective reproduction control means is selected from the music information input by the input means or the music information stored by the music information storage means. music information reproduction apparatus according to claim 4 or 5, characterized in that the selection of music information corresponding to the particular song.

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