JP4170280B2 - Information recording apparatus and information reproducing apparatus - Google Patents

Description

  The present invention relates to an information recording apparatus and an information reproducing apparatus, and more specifically, an information recording apparatus that records audio information and video information on a recording medium such as an optical disk, and an information reproducing apparatus that reproduces audio information and video information from the recording medium. About.

  Conventionally, audio information and video information are generally recorded on a recording medium such as an optical disk or a video tape.

  Information to be recorded on these recording media has been conventionally recorded using analog signals. Recently, however, digital signals have been used for reasons such as little deterioration of signals (sound quality and image quality) and ease of handling in computers and the like. Recording methods using signals are becoming common.

  A so-called voice multiplex karaoke apparatus (hereinafter referred to as a karaoke apparatus) is known as an application system that records 4-channel sound (2 channels each for main channel sound and sub-channel sound) on such a recording medium. It has been.

  In such a karaoke apparatus, there is one in which it is determined in advance to record the voice containing the model singing (guide voice) in the sub-channel voice (3 and 4 channels), and the voice containing the model singing is used for practice. .

  Therefore, in such a karaoke apparatus, since the use state of each channel is determined in advance, it is not necessary to record information on the use state of each channel on the recording medium, and no recording is performed.

  In addition, as a karaoke device, recording independent audio signals on four channels, recording an accompaniment and an example song corresponding to one singer in subchannel audio (3, 4 channels) in a duet karaoke performance, It is also known to record information on the usage state of sound for each song in a recording medium. Also in this case, information that can be recorded for each channel has been determined in advance.

  In the conventional karaoke apparatus, what is recorded in each audio channel (channel format) is determined in advance, and there is a problem that the degree of freedom in recording is limited.

  Furthermore, since the channel format is determined in advance, a recording medium that can be used with a karaoke apparatus using another channel format cannot be used as it is, and a new recording medium is created for use with the karaoke apparatus. There was a problem of having to.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an information recording apparatus and an information reproducing apparatus that can improve flexibility and flexibility of a system and can easily cope with a recording medium for multi-channel recording.

In order to solve the above-mentioned problem, an invention according to claim 1 is an information recording apparatus capable of recording audio information data in a recording medium for each of a plurality of predetermined units, in the audio information data in each of the predetermined units. Each of the streams includes a plurality of streams, each of the streams includes a plurality of channels of audio information, and each of the streams is any one when the audio information data is reproduced. Only the audio information data and the type of the audio information of each channel included in each of the streams included in the audio information data recorded in the predetermined unit is the stream. Individual recording content information data for each predetermined unit for specifying each and every channel, and all of the information recorded on the recording medium Collective record content information data in which information for specifying the type of the audio information of each channel included in each stream of the audio information data in the predetermined unit is specified for each stream and for each channel, and Recording means for recording on the recording medium is provided.

In order to solve the above problem, a replica disk according to a seventh aspect of the present invention is created by a recording apparatus according to the sixth aspect.

In order to solve the above-described problem, the invention according to claim 8 is an information recording method capable of recording audio information data on a recording medium for each of a plurality of predetermined units, wherein the audio information data in each of the predetermined units is recorded. Each of the streams includes a plurality of streams, each of the streams includes a plurality of channels of audio information, and each of the streams is any one when the audio information data is reproduced. Only one is selected for playback, and the audio information type and the audio information type of each channel included in each stream included in the audio information data recorded in the predetermined unit are Individual recording content information data for each predetermined unit for specifying each stream and for each channel, and all recorded on the recording medium Collective record content information data collecting information for specifying the type of the audio information of each channel of each of the streams included in the audio information data in the predetermined unit for each stream and for each channel; A recording step of recording on the recording medium.

In order to solve the above problems, a replica disk according to a fourteenth aspect of the present invention is created using the recording method according to the thirteenth aspect.

In order to solve the above-mentioned problem, the invention according to claim 15 is a plurality of audio information data for each predetermined unit, and each of the audio information data in each predetermined unit includes a plurality of streams. Each of the streams includes a plurality of channels of audio information, and only one of the streams is selected for reproduction when the audio information data is reproduced. For specifying the type of the audio information of each channel included in each of the streams included in each of the streams included in the audio information data and the audio information data recorded in the predetermined unit for each stream and each channel Individual recording content information data for each predetermined unit and the audio information data for all the predetermined units recorded on the recording medium are present. A set of recorded content information data collecting information for specifying the type of the audio information of each channel included in each stream for each stream and for each channel. An information reproducing apparatus for reproducing audio information data, wherein the audio information data and the individual recording content information data or the collective recording content information data are read from the recording medium, and the read individual recording Discriminating means for discriminating the audio information of a plurality of channels included in the audio information data reproducible based on content information data or the collective recording content information data, and instruction means for instructing audio information of the channels to be reproduced Based on the discrimination result of the discrimination means and the instruction, before the designation corresponding to the designation to be reproduced. Extract audio information from the audio information data read above, and a reproduction means for reproducing and outputting.

In order to solve the above problem, the invention according to claim 20 is the audio information data for each of a plurality of predetermined units, and each of the audio information data in each of the predetermined units includes a plurality of streams. Each of the streams includes a plurality of channels of audio information, and only one of the streams is selected for reproduction when the audio information data is reproduced. For specifying the type of the audio information of each channel included in each of the streams included in each of the streams included in the audio information data and the audio information data recorded in the predetermined unit for each stream and each channel Individual recording content information data for each predetermined unit and the audio information data for all the predetermined units recorded on the recording medium are present. A set of recorded content information data collecting information for specifying the type of the audio information of each channel included in each stream for each stream and for each channel. An information reproducing method for reproducing audio information data, the step of reading the audio information data and the individual recorded content information data or the collective recorded content information data from the recording medium, and the read individual recorded content Selecting the audio information data that can be reproduced based on the information data or the collective recording content information data.

  Next, preferred embodiments of the present invention will be described with reference to the drawings.

(I) Information Recording Device FIG. 1 shows a schematic block diagram of the information recording device.

The information recording apparatus 100 records audio information and video information to be recorded on a magnetic tape, reproduces and outputs the recorded audio information and video information, and audio output from the VTR 1. after the information or video information converted a / D, MPEG (Moving picture Experts Group) compression processing by method or the like, the signal processing section 2 outputs the record information signal S _R to the time-axis-multiplex the audio and video information And the recording information signal S _R and the additional information signal S _AD are input, and the recording information signal S _R or the additional information signal S _AD is switched and output based on the control signal S _CR from the controller 7 to multiplex the time axis, the adder 3 which outputs as a stream S _S, to the output stream S _S, for example, addition and 2-3 of Reed-Solomon codes such as an error correction code (ECC) Configuration and modulator 4 which is subjected to modulation such as modulation and generates a disc record signal S _M output, the mastering device 5 records the disc record signal S _M to the master disc for the production of an optical disk, an information recording apparatus 100 The oscillator 6 that outputs the reference clock signal CLK for synchronizing the timing between the members and the additional information signal _SAD corresponding to the additional information such as access information are output, and the entire information recording apparatus 100 And a controller 7 that performs control.

  Next, the operation will be described.

Audio information and video information output from the VTR1 is converted A / D in the signal processing section 2, is compressed by the MPEG system, is output to the adder 3 as a recording information signal S _R is the time base multiplexed .

In parallel with this, the controller 7 outputs the additional information signal S _AD to the adder 3.

Thus, the adder 3 time-multiplexes the recording information signal S _R and the additional information signal S _AD to generate a stream S _S and output it to the modulator 4.

Next, the modulator 4 applies an error correction code (ECC) such as a Reed-Solomon code to the stream S _{S and} performs modulation such as 2-3 modulation, and the master recording device 5 modulates the disc recording signal S _M modulated. Are recorded on the master disk. A stamper disk is created based on the master disk, and a replica disk as a commercially available optical disk is manufactured by a replication device (not shown).

  Here, the recording format of the manufactured disc will be described with reference to FIGS.

  The optical disc DK has a lead-in area LIA indicating a recording start position of information from the inner circumference side toward the outer circumference side, a system area SA in which various system information such as a recording address is recorded, an audio information data group, and image information. An audio content information area ACA in which audio content information data for each file including data is recorded, a file recording area FRA in which a plurality of files F1 to Fn are recorded, a lead-out area LOA indicating a recording end position of information, It is configured with.

  In the audio content information area ACA, n pieces of audio content information data corresponding to the files F1 to Fn (n: an integer of 2 or more) are recorded.

  A header area HA in which various information related to the files F1 to Fn is recorded is provided at the head portion of each file F1 to Fn. The header area HA is the same as that recorded in the audio content information area. Audio content information data corresponding to the file is recorded.

In each file, J audio streams S _{A1 to} S _AJ can be recorded (J is an integer equal to or greater than 1 and a maximum of 8). Accordingly, the audio content information D _{AC1 to} D _ACJ corresponding to each audio stream is recorded in the audio content information of each file and the audio content information corresponding to each file.

  As a general rule, video data and audio data corresponding to one song are recorded in each file F1 to Fn, but when there are a plurality of songs having the same audio content information data, as shown in the file Fn. It is also possible to record video data and audio data of m pieces of music (m: an integer of 2 or more) for one common audio content information.

  Accordingly, it is only necessary to reproduce the video data and audio data of m songs using the same audio content information data, and the recording capacity can be effectively used.

  FIG. 3 shows a configuration example when the audio content information data has an 8-byte configuration corresponding to the AC3 standard.

The audio content information data D _ACX is a 1-byte stream data D _ST that records information about the entire audio stream S _AX, and a 1-byte that records information about the first channel and the second channel among the five channels used in the AC3 standard. First audio content data D ₁ , 1-byte second audio content data D _{2 in} which information relating to the AC3 standard third channel is recorded, and 1-byte third audio in which information relating to the AC3 standard fourth channel is recorded. The content data D ₃ , 1-byte fourth audio content data D _{4 in} which information on the fifth channel of the AC3 standard is recorded, and 3-byte reserved data DR used as a reserved area are configured.

In the stream data _DST , the first bit b ₀ is a pre-prediction flag indicating whether or not the corresponding stream S _S includes pre-prediction information, and the second bit b ₁ indicates whether or not the corresponding stream S _S includes chorus information. The 4 bits from the third bit b ₃ to the eighth bit b ₇ are reserved areas.

In the first audio content data D ₁ , the first bit b ₀ is a guide melody flag indicating whether or not the corresponding first channel and second channel include guide melody information, the second bit b ₁ to the fourth bit b _3. Are the version data representing the version of the main performance (orchestra version, rock version, etc.) in the corresponding first channel and second channel, and the fifth bit b ₄ to the eighth bit b ₇ are reserved areas. .

Since the second audio content data D _{2 to} the fourth audio content data D ₄ have the same structure, the second audio content data D ₂ will be described.

In the second audio content data D ₂ , the first bit b ₀ is a second guide melody flag indicating the presence or absence of the second guide melody GM ₂ in the third channel, and the second bit b ₁ is the first guide in the third channel. The first guide melody flag indicating the presence / absence of melody GM ₁ , the third bit b ₂ is the second vocal voice flag indicating the presence / absence of the second vocal voice V ₂ in the third channel, and the fourth bit b ₃ is in the third channel The first vocal voice flag indicating the presence or absence of the first vocal voice V ₁ , the fifth bit b ₄ to the eighth bit b ₇ is a reserved area.

  FIG. 4 shows a configuration example when the audio content information data has a 4-byte configuration corresponding to the AC3 standard.

The audio content information data D _{ACX ′} is a 1-byte stream data D _ST that records information about the entire audio stream S _AX , and 1 that records information about the first channel and the second channel among the five channels used in the AC3 standard. 1-byte first audio content data D ₁ , 1-byte second audio content data D _{2 in} which information related to the AC3 standard third channel is recorded, and 1 in which information about the AC3 standard fourth channel and fifth channel is recorded And third audio content data D _{3 ′ of} bytes.

Since the stream data D _ST , the first audio content data D ₁ and the second audio content data D ₂ are the same as those in the embodiment of FIG. 3, the configuration of the third audio content data D _{3 ′} will be described in detail.

The third audio content data D _{3 ′} is roughly divided into a first channel b ₀ to a fourth bit b ₃ being a fifth channel data area, and a fifth bit b ₄ to an eighth bit b ₇ being a fourth channel. It is a data area.

In the fifth channel data area, the first bit b ₀ is a first guide melody flag indicating the presence or absence of the first guide melody GM ₁ in the fifth channel, and the second bit b ₁ is the second vocal sound V in the fifth channel. second vocal audio flag indicating the presence or absence of _2, the third bit b ₂ and the fourth bit b ₃ are used as the reserved area.

In the fourth channel data area, the fifth bit b ₄ is a second guide melody flag indicating the presence or absence of the second guide melody GM ₂ in the fourth channel, and the sixth bit b ₅ is the second vocal sound V in the fourth channel. second vocal audio flag indicating the presence or absence of _2, the seventh bit b ₆ to the first vocal audio flag eighth bit b ₇ representing the first presence of the vocal audio V ₁ of the in the fourth channel is used as the reserved area.

  FIG. 5 shows a configuration example when the audio content information data has a 2-byte configuration corresponding to the AC3 standard.

The audio content information data D _{ACX "} includes 1-byte stream audio content data D _{SA in} which information on the entire audio stream S _AX and information on the first channel and the second channel among the five channels used in the AC3 standard are recorded, and AC3 1-byte first audio content data D _{1 ″ in} which information on the third channel, the fourth channel, and the fifth channel of the standard is recorded.

In the stream audio content data _DSA , the first bit b ₀ is a guide melody flag indicating whether or not the corresponding first channel and second channel include guide melody information, the second bit b ₁ to the fourth bit b ₃ . 3-bit version data representing the main playing version of the first and second channels corresponding, fifth bit b ₄ is the corresponding front swing flag stream S _S indicating whether including pre pretending information, the the 6-bit b ₅ chorus flag corresponding stream S _S indicating whether including chorus information, the seventh bit b ₆ and the eighth bit b ₇ are used as the reserved area.

In the first audio content data D _{1 ″} , two bits of the first bit b ₀ and the second bit b ₁ are a fifth channel data area CA ₅ in which information on the fifth channel of the AC3 standard is recorded, a third bit b ₂ and The fourth bit b ₃ is a fourth channel data area CA ₄ in which information about the fourth channel of the AC3 standard is recorded, and the fifth bit b _{4 to} the eighth bit b ₇ are third information in which information about the third channel of the AC3 standard is recorded. It has become a channel data area CA _3.

Here, how to use the third channel data area CA _{3 to} the fifth channel data area CA ₅ will be described.

The third channel data area CA ₃ is used as follows according to the value represented by 4 bits constituting the third channel data area CA ₃ .

4-bit value: meaning
0: System reserved value 1: First vocal voice V ₁ present 2: Second vocal voice V ₂ present 3: First guide melody GM ₁ present 4: Second guide melody GM ₂ present 5: First vocal voice V ₁ and With second vocal voice V ₂ 6: With first guide melody GM ₁ and second guide melody GM ₂ 7: With first vocal voice V ₁ and second guide melody GM ₂ 8: Second vocal voice V ₂ and first Guide melody GM ₁ available 9-15: System reserved value

The fourth channel data area CA ₄ is used as follows according to the 2-bit value constituting the fourth channel data area CA ₄ .

2-bit value: meaning
0: System reserved value 1: first vocal voice V ₁ There are two: the second vocal voice V ₂ There are three: the first vocal voice V ₁ and the second guide melody GM ₂ there

The fifth channel data area CA ₅ is used as follows according to the 2-bit value constituting the fifth channel data area CA ₅ .

2-bit value: meaning
0: System reserved value 1: Second vocal voice V ₂ present 2: Second vocal voice V ₂ and first guide melody GM ₁ present 3: System reserved value

  The above-described configuration of the audio content information data is an example of the configuration, and is not limited to these.

  By recording on the optical disc in this way, it is possible to easily know which audio information has been recorded among a plurality of types of audio information set in advance based on the recorded content information data.

(II) Information Reproducing Device Next, an information reproducing device for reproducing the optical disk recorded by the above information recording device will be described with reference to the drawings.

  FIG. 6 shows a schematic block diagram of the information reproducing apparatus.

As shown in FIG. 6, the information reproducing apparatus 200 according to the embodiment, the disk record signal S _M which contains recorded information signal S _R and the additional information signal S _AD from the optical disc DK which is recorded by the aforementioned information recording apparatus 100 detected, the optical pickup 10 to output a detection signal S _P, and binarizer 11 a detection signal S _P which is read binarized by a predetermined threshold (threshold), the binarized detection signals S performs demodulation and error correction to _P, a demodulator 12 and output as reproduced information S _L, performs decompression processing by the MPEG method on the reproduction information S _L, D / a converted and outputted as the output signal S _D a signal processing unit 13 for, detecting the binarized clock component from the detection signal S _P and, an extraction clock signal CLK clock component detector 14 to output as _P, the extracted clock signal CLK _P and outgoing A phase comparator 15 that compares the phase of the reference clock signal CLK from the oscillator 18 and outputs a comparison signal, and a control signal S _SP for controlling the rotational speed of the spindle motor 17 by removing a high frequency component from the comparison signal. and LPF (Low Pass Filter) 16 for outputting a control signal S and the spindle motor 17 for rotating the optical disc DK, based in the _SP, the reference clock for timing synchronization between the members together and constituting the information reproducing apparatus 200 An oscillator 18 that outputs a signal CLK and a controller 19 that controls the entire information reproducing apparatus 200 are provided.

  Here, the configuration around the signal processing unit 13 and the controller 19 will be described in detail with reference to FIG.

The signal processing unit 13, a demultiplexer 30 which separates the based on the stream selection signal S _SEL from the controller 19 from the playback information S _L video data D _V and the desired audio stream S _AX, decodes the video data D _V A video decoder 31 for outputting as a video signal S _V , and an audio decoder 32 for decoding the audio stream S _AX separated by the demultiplexer 30 and outputting as a first channel audio signal S _ch1 to a fifth channel audio signal S _ch5 , the first channel audio signal S _ch1 ~ fifth channel audio signal S _ch5 mix down on the basis of a mix-down control signal S _MD from the controller 19, outputs a stereo audio signal S _STA 2-channel (L-channel + R channel) And a mixer 33 Configured.

In this case, the video signal and the stereo audio signal constitute an output signal _SD .

  Next, the operation during reproduction will be described with reference to FIGS.

  In this case, it is assumed that the audio content information data has an 8-byte configuration corresponding to the AC3 standard, and all audio is recorded so that all combinations are possible.

First, the user performs vocal selection, proversion selection, and sound effect addition selection by operating the selection switches SW _{1 to} SW ₃ in FIG. 8 (step S1).

In this case, the vocal selection is an operation for selecting one or both of the first vocal voice V ₁ and the second vocal voice V ₂ as a reproduction target.

More specifically, in the case of a solo song, the presence / absence of vocal is cyclically selected by operating the selection switch SW ₁ as follows: vocal voice on → vocal voice off → vocal voice on →. In the case of a duet song, by operating the selection switch SW ₁ , the first vocal voice V ₁ off + second vocal voice V ₂ off → first vocal voice V ₁ on + second vocal voice V ₂ off → first 1 vocal sound V ₁ off + 2nd vocal sound V ₂ on → 1st vocal sound V ₁ on + 2nd vocal sound V ₂ on → 1st vocal sound V ₁ off + 2nd vocal sound V ₂ off → A combination of vocals is selected cyclically.

The pro version selection is a selection operation in which the first guide melody GM ₁ (or the second guide melody GM ₂ ) is not a reproduction target.

More specifically, in the case of a solo song, by the operation of the selection switch SW _2, the presence or absence of guide melody off → guide melody on → guide melody off → ... guide melody cyclically as is selected. Also, in the case of duet, by operating the selection switch SW _2, the first guide melody GM ₁ off + second guide melody GM ₂ off → first guide melody GM ₁ on + second guide melody GM ₂ off → the 1 guide melody GM ₁ off + 2nd guide melody GM ₂ on → 1st guide melody GM ₁ on + 2nd guide melody GM ₂ on → 1st guide melody GM ₁ off + 2nd guide melody GM ₂ off → A combination of guide melodies is selected cyclically.

  The sound effect addition selection is an operation for selecting whether or not to add a sound effect such as a clap sound in the third to fifth channels.

More specifically, by the operation of the third switch SW ₃ , the presence / absence of a sound effect is selected cyclically, such as sound effect off → effect sound on → effect sound off →.

  Although not shown in FIG. 8, it is also possible to select the presence / absence of chorus, the presence / absence of chorus, or the version of the main performance in the same manner.

  In parallel with the selection of the performance mode, the controller 19 refers to the audio content information data of each stream and each channel (step S2). In this case, since it can be seen that all recordable voices are recorded, the controller permits any selection by the user assuming that all combinations can be selected.

  The selection state at this time is displayed on the display DSP, but the controller 19 displays only the combination of audio information selectable by the user based on the audio content information data.

Further, the controller 19 selects the necessary stream S _S by controlling the demultiplexer 30 with the stream selection signal S _SEL according to the operation state of the selection switches SW _{1 to} SW ₃ (step S3).

  Next, the case where a male person sings a duet song, selects a pro version (without a guide melody), and adds a sound effect will be described in detail.

In this case, for example, the normal main performance is recorded in the first channel S _ch1 and the second channel S _ch2 of the first audio stream S _A1 , and the first channel of the male voice corresponds to the third channel S _ch3. second guide melody GM ₂ corresponding to the first guide melody GM ₁ and second vocal audio women is recorded that, in the fourth channel S _ch4, first vocal audio V ₁ of the male voice is recorded, the fifth channel It is assumed that a female second vocal V ₂ is recorded in S _ch5 .

Also, a normal main performance is recorded in the first channel S _ch1 and the second channel S _ch2 of the second audio stream S _A2 , and the male first vocal V ₁ and the female first vocal are recorded in the third channel S _ch3 . A second guide melody GM ₂ corresponding to two vocal voices is recorded, and a second guide vocal GM ₁ corresponding to a female second vocal V ₂ and a male first voice is recorded on the fourth channel S _ch4 . It is assumed that sound effects are recorded on the fifth channel S _ch5 .

The main performance with sound effects is recorded in the first channel S _ch1 and the second channel S _ch2 of the third audio stream S _A3 , and the third channel S _ch3 corresponds to the first vocal of the male voice. The first guide melody GM ₁ and the second guide melody GM ₂ corresponding to the female second vocal sound are recorded, the first vocal sound V ₁ of the male voice is recorded on the fourth channel S _ch4 , and the fifth channel S _ch5 is recorded. Is recorded with the female second vocal V ₂ .

The user operates the selection switches SW _{1 to} SW ₃ to set a state desired by the user.

Further, according to the user's instruction, the controller determines that the audio information to be output is the main performance, the female second vocal V _2, and the sound effect, and selects an audio stream that meets this condition.

The first audio stream S _A1 is determined to be inappropriate because no sound effect is recorded.

The second audio stream S _A2 is recorded with sound effects and female second vocal V ₂ , and female second vocal V ₂ is mixed with the first guide melody GM ₁ and recorded. Since the vocal V ₂ cannot be taken out independently, it is determined to be inappropriate.

The third audio stream S _A3 is the most suitable stream for the user's instruction because the female second vocal V ₂ is recorded independently on the fifth channel S _ch5 and the sound effect is recorded in the main performance. It is judged that. Therefore, the controller 19 sets a stream selection signal S _SEL to select the third audio stream S _A3 .

As a result, the audio decoder 32 decodes the third audio stream S _A3 separated by the demultiplexer 30 and outputs it to the mixer 33 as the first channel audio signal S _ch1 to the fifth channel audio signal S _ch5 .

Then, the controller 19 outputs a mixdown control signal _SMD to the mixer 33 so as to select a channel to be mixed down by the mixer 33 (step S4).

In this example, S _ch5 is mixed down to S _ch1 and S _ch2 .

Thus, the mixer 33, the first channel audio signal S _ch1 ~ fifth channel audio signal S _ch5 mixdown based on the mix-down control signal S _MD from the controller 19, two channels (L-channel + R channel) output as a stereo audio signal S _STA, the video decoder 31 in parallel with this output as a video signal S _V decodes the video data (step S5).

  In addition to the example given here, various cases can be dealt with by selecting the three audio streams shown in this embodiment and combining the channels in the selected audio stream. Here, FIG. 10 summarizes what cases each audio stream corresponds to.

  As described above, according to the present embodiment, even when the number of combinations of audio information recorded on the optical disk is enormous, information on combinations of audio information that can be reproduced in advance is set. Therefore, it is possible to easily specify the combination of audio information to be reproduced based on the audio content information data recorded on the optical disc, and to improve the flexibility of system construction.

  In the above description, the AC3 standard has been described. However, the present invention is not limited to this, and any standard capable of multi-channel recording such as linear PCM and MPEG2 can be applied.

It is a block diagram which shows schematic structure of an information recording device. It is a figure explaining the information recording state on an optical disk. It is structure explanatory drawing at the time of comprising audio | voice content information data by 8 bytes. It is structure explanatory drawing at the time of comprising audio | voice content information data by 4 bytes. It is structure explanatory drawing at the time of comprising audio | voice content information data by 2 bytes. It is a block diagram which shows schematic structure of an information reproduction apparatus. It is a detailed block diagram around a signal processing unit and a controller. It is an external view explanatory drawing of the operation part of a reproducing | regenerating apparatus. It is a general | schematic operation | movement flowchart of an Example. It is a figure explaining the correspondence of the selection channel and use purpose in each audio | voice stream, (a) is the case of 1st audio | voice stream _SA1 , (b) is the case of 2nd audio | voice stream _SA2 , (c) is This is the case of the third audio stream S _A3 .

Explanation of symbols

100 information recording device 200 information reproducing device 1 VTR
2 Signal Processing Unit 3 Adder 4 Modulator 5 Mastering Device 6 Oscillator 7 Controller 10 Pickup 11 Binarizer 12 Demodulator 14 Clock Component Detector 15 Phase Comparator 16 LPF
17 Spindle motor DK ... Optical disc S _R ... Recording information signal S _CR , S _CP , S _SP ... Control signal S _P detection signal S _AX audio stream S _M Disc recording signal S _AD additional information signal S _L reproduction information S _D output signal CLK Reference clock signal CLK _P extracted clock signal

Claims (24)

In an information recording apparatus capable of recording audio information data on a recording medium for each of a plurality of predetermined units,
Each of the audio information data in each predetermined unit is configured to include a plurality of streams, each of the streams is configured to include a plurality of channels of audio information, and each of the streams is At the time of reproduction of audio information data, only one of them is selected and becomes a reproduction target,
The voice information data;
Individual recording content information for each predetermined unit for specifying the type of the audio information of each channel included in each stream of the audio information data recorded in the predetermined unit for each stream and for each channel. Data and
Collect information for identifying the type of the audio information of each channel of each of the streams included in the audio information data in all the predetermined units recorded on the recording medium for each stream and for each channel. Collective record content information data,
An information recording apparatus comprising recording means for recording the information on the recording medium .   2. The information according to claim 1, wherein the recording unit records the individual recording content information data in a header portion of the predetermined unit in which the individual recording content information data specifies a type of the audio information data. Recording device. The recording medium has a disk shape;
The information recording apparatus according to claim 1, wherein the recording unit records the collective recording content information data at a position on an inner circumference from the predetermined unit. The individual recording content information data and the collective recording content information data are information indicating whether or not the audio information of the corresponding plurality of channels includes a guide melody, respectively . The information recording device according to any one of claims. The individual recording content information data and the collective recording content information data are information indicating whether or not the audio information of the corresponding plurality of channels includes vocal audio, respectively . The information recording device according to any one of claims . The recording medium is a master disk;
6. The information recording apparatus according to claim 1 , further comprising means for creating a replica disk based on the master disk . A replica disk produced by the recording apparatus according to claim 6. In an information recording method capable of recording audio information data on a recording medium for each of a plurality of predetermined units,
Each of the audio information data in each predetermined unit is configured to include a plurality of streams, each of the streams is configured to include a plurality of channels of audio information, and each of the streams is At the time of reproduction of audio information data, only one of them is selected and becomes a reproduction target,
The voice information data;
Individual recording content information for each predetermined unit for specifying the type of the audio information of each channel included in each stream of the audio information data recorded in the predetermined unit for each stream and for each channel. Data and
Collect information for identifying the type of the audio information of each channel of each of the streams included in the audio information data in all the predetermined units recorded on the recording medium for each stream and for each channel. Collective record content information data,
An information recording method comprising: a recording step of recording the information on the recording medium . The said recording process WHEREIN: The said individual recording content information data is recorded on the header part of the said predetermined unit in which the said individual recording content information data specifies the kind of the said audio | voice information data, The recording unit of Claim 8 characterized by the above-mentioned. Information recording method. The recording medium has a disk shape;
The information recording method according to claim 8 or 9, wherein, in the recording step, the collective recording content information data is recorded at a position on an inner circumference from the predetermined unit . 11. The individual recording content information data and the collective recording content information data are information indicating whether or not the corresponding audio information of the plurality of channels includes a guide melody, respectively . The information recording method as described in any one of Claims. 11. The individual recording content information data and the collective recording content information data are information indicating whether or not the audio information of the corresponding plurality of channels includes vocal audio, respectively . The information recording method as described in any one of Claims. The recording medium is a master disk;
9. The information recording method according to claim 8, further comprising a step of creating a replica disk based on the master disk . A replica disc produced by using the recording method according to claim 13 . A plurality of audio information data for each predetermined unit, wherein each of the audio information data in each of the predetermined units includes a plurality of streams, and each of the streams includes audio information of a plurality of channels. The audio information data that is to be reproduced by selecting any one of the streams when reproducing the audio information data, and the audio recorded in the predetermined unit. Individual recording content information data for each predetermined unit for specifying the type of the audio information of each channel included in each stream included in the information data for each stream and each channel, and recorded on the recording medium Before each channel of each of the streams included in the audio information data in all the predetermined units. An information reproducing apparatus for reproducing arbitrary audio information data from a recording medium on which information for collecting information for specifying the type of audio information for each stream and for each channel is collected. ,
Reading means for reading out the audio information data and the individual recording content information data or the collective recording content information data from the recording medium;
Discriminating means for discriminating the audio information of a plurality of channels included in the audio information data that can be reproduced based on the read individual recording content information data or the collective recording content information data;
Instruction means for instructing audio information of the channel to be reproduced;
Based on the determination result of the determination means and the instruction, the reproduction means that extracts the audio information corresponding to the designation to be reproduced from the read audio information data, reproduces it, and outputs it;
Information reproducing apparatus characterized by comprising a. The information reproducing apparatus according to claim 15, wherein the instruction unit instructs a combination of the plurality of channels to be reproduced . 17. The information according to claim 15, further comprising display means for displaying a selectable combination of the audio information based on the read individual recording content information data or the collective recording content information data. Playback device . 18. The individual recording content information data and the collective recording content information data are information indicating whether or not the corresponding audio information of the plurality of channels includes a guide melody, respectively . The information reproducing apparatus according to any one of the above . 18. The individual recording content information data and the collective recording content information data are information indicating whether or not the audio information of the corresponding plurality of channels includes vocal audio, respectively . The information reproducing apparatus according to any one of the above . A plurality of audio information data for each predetermined unit, wherein each of the audio information data in each of the predetermined units includes a plurality of streams, and each of the streams includes audio information of a plurality of channels. The audio information data that is to be reproduced by selecting any one of the streams when reproducing the audio information data, and the audio recorded in the predetermined unit. Individual recording content information data for each predetermined unit for specifying the type of the audio information of each channel included in each stream included in the information data for each stream and each channel, and recorded on the recording medium Before each channel of each of the streams included in the audio information data in all the predetermined units. An information reproduction method for reproducing arbitrary audio information data from a recording medium on which information for collecting information for specifying the type of audio information for each stream and for each channel is collected. ,
Reading the audio information data and the individual recording content information data or the collective recording content information data from the recording medium;
Selecting the audio information data that can be reproduced based on the read individual recording content information data or the collective recording content information data;
Information reproducing method characterized by comprising the. Further comprising the step of instructing a combination of the plurality of channels to be played,
19. The information reproducing method according to claim 18, further comprising a step of selecting the plurality of channels in the designated combination using the individual recording content information data or the collective recording content information data . The information reproducing method according to claim 21, further comprising a step of reproducing the audio information of the selected channel . The individual recording content information data and the collective recording content information data are information indicating whether or not the corresponding audio information of the plurality of channels includes a guide melody , respectively. The information reproduction method according to claim 1 . The individual recording content information data and the collective recording content information data are information indicating whether or not the corresponding audio information of the plurality of channels includes vocal audio , respectively. The information reproduction method according to claim 1 .

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