JPH1010655A - Movie film, movie film recording device, and movie film reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a movie film which can record superimposed dialogue information while keeping the recording state of a picture recording region, and to provide a recording device and a reproducing device therefor. SOLUTION: Superimposed dialogue data and audio data inputted to a cinema film recording device 10 are coded by each coding circuit 12a-12m, and supplied to multiplexer 13R, 13L. The multiplexer 13R, 13L converts the superimposed dialogue data and audio data to a serial signal. Error correction data is added to the superimposed dialogue data and audio data converted to a serial signal by error correction data adding circuits 15R, 15L, the superimposed dialogue data and audio data are recorded synchronously with a digital sound track of the movie film by LED 18L, 18R.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movie film and the like for recording subtitle data together with audio data on a digital sound track.

[0002]

2. Description of the Related Art Generally, movie films are classified into so-called multi-layer type color films from the viewpoint of performance. Positive film)
Reversal film and negative film are used for shooting,
Positive films are used for printing.

Since a reversal film can obtain a positive image in a relatively short time, it is used for direct positive recording, for example, in television broadcasting. On the other hand, a negative film obtains a negative image having a complementary color relationship with the brightness and hue of the subject by performing development processing after photographing. The positive film is printed by a printer giving predetermined light from the negative film side in combination with the negative film, and the positive film is developed to obtain a positive image.

[0004]

When recording subtitle information on a movie film, a completed positive film is subjected to a development process, and then a translation is printed.
That is, since the translation sentence is directly printed on the image recording area, the positive film becomes unusable when a print error occurs. In this case, not only will the movie film be ruined, but it will be necessary to import the film again from abroad.

[0005] On the other hand, when the number of times of screening increases and the consumption of movie films becomes severe, a new movie film must be obtained and the same processing must be performed, which increases costs. Also, once a translation is printed on a cinema film, it becomes unsuitable for screening in a different language area.

[0006] The present invention has been made in view of such circumstances, and a cinema film, a cinema film recording apparatus, and a cinema film capable of recording subtitle information while maintaining the recording state of an image recording area. It is an object to provide a playback device.

[0007]

In order to solve the above-mentioned problems, a motion picture film according to the present invention is provided with a digital sound track in which a subtitle data corresponding to the audio data is recorded in the running direction together with the audio data. .

Further, according to the present invention, there is provided a movie film recording apparatus for recording audio data on a digital sound track formed along a running direction of the movie film. And subtitle data generating means for generating subtitle data; and changing the light emission state of a recording light source according to the audio data or the subtitle data to record audio data on the digital sound track, and Recording means for recording the information.

Further, according to the present invention, there is provided a movie film reproducing apparatus for reproducing audio data of a digital sound track formed along a running direction of a movie film. , Reading means for generating dot pattern data, detecting means for detecting caption data based on the dot pattern data, and display means for displaying characters or symbols corresponding to the caption data.

Thus, in the above movie film recording apparatus, the subtitle data is recorded together with the audio data on the digital sound track while the recording state of the video recording area is maintained. The movie film reproducing device detects caption data based on the dot pattern data generated by reading the dot pattern of the digital sound track of the movie film, and displays characters or symbols corresponding to the caption data.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a cinema film, a cinema film recording apparatus, and a cinema film playback apparatus according to the present invention will be described below with reference to the drawings.

Movie film 1 according to an embodiment of the present invention
For example, as shown in FIG. 1, a video recording area 2 in which an image to be projected is recorded, and film winding holes provided on both sides of the video recording area 2 for winding the movie film 1, respectively. Perforation 3 (3L, 3R)
And the video recording area 2 and each perforation 3L, 3
R, an analog sound track 4 (4L, 4R) linearly provided along one of two gaps along the traveling direction of the film, and each of the perforations 3L, 3R and the film. And a digital sound track 5 (5L, 5R) linearly provided along the film traveling direction between the two edges.

The analog sound track 4L records a left channel analog audio signal, and the analog sound track 4R records a right channel analog audio signal.

On the digital sound track 5L, digitized left-channel audio data is recorded.
, Digitalized right channel audio data is recorded.

The digital sound tracks 5L, 5
As shown in FIG. 1 described above, audio data recorded in R is composed of film blocks 6 (6L, 6R) described later in time series 1, 2,..., N, n + 1,. . Here, subscripts such as “n” and “n−α”
Shows the chronological order. For example, Cn of the digital sound track 5L indicates the n-th time series of the center channel (C), whereas Cn-α of the digital sound track 5R indicates (n) of the center channel (C). −α) -th time series. That is, the digital sound track 5R indicates that data delayed by α from the digital sound track 5L is recorded.

Specifically, the film block 6L stores audio data of a center channel (C), a center left channel (LC), a left channel (L), a surround left channel (SL), and a subwoofer channel (SW). Has been recorded. The right mix channel (RM) records audio data of a right channel (R), a center right channel (RC), and a surround right channel (SR). In addition, user data (UD) in which subtitle data such as a translated sentence is recorded is also recorded. That is, the channels (C), (LC), (L), (SL),
Audio data of (SW) and (RM) and user data (UD) are recorded as a set of left channel systems.

The film block 6R includes a subwoofer channel (SW) and a center right channel (R).
C), right channel (R), surround right channel (SR), and center channel (C ′) audio data are recorded. The audio data of the left mix channel (LM) is formed and recorded from audio data of the left channel (L), the center left channel (LC), and the surround left channel (SL). Further, for example, user data (U
D) is also recorded. That is, the above film block 6
In R, each of the above channels (SW), (RC),
The audio data of (R), (SR), (LM), and (C ′) and the user data (UD) are recorded as a set of the right channel system.

In such a movie film 1, user data (UD) and audio data are recorded for each film block 6 by the movie film recording apparatus 10 according to the embodiment of the present invention.

As shown in FIG. 2, for example, the movie film recording apparatus 10 includes a mixer 11L for forming a left mix channel (LM) from the L, LC, and SL, and a right mix channel from the R, RC, and SR. (RM), encoding circuits 12a to 12g for encoding left channel audio data, encoding circuits 12h to 12n for encoding right channel audio data, and each of the above encodings. Circuits 12a to 12g
And a right channel serially transmitting the right channel audio data and the like encoded by the encoding circuits 12h to 12n. System multiplexer 13R.

The above-mentioned movie film recording apparatus 10 comprises:
An error correction data adding circuit 15L for adding an error correction code (ECC) to the left channel audio data.
A delay memory 14R for delaying the right channel audio data from the multiplexer 13R by a predetermined time and outputting the delayed data, and an error correction for adding an error correction code to the right channel audio data from the delay memory 14R. A data addition circuit 15R and a synchronization data addition circuit 16 for synchronizing each audio data
L and 16R, modulation circuits 17L and 17R for performing predetermined modulation processing on the audio data of each channel to which the error correction code is added, and audio data of each channel subjected to the predetermined modulation processing. Each of the above digital sound tracks 5 of the movie film 1
Light emitting diode (LED) 18L recorded on L, 5R,
18R and a system controller 19 for controlling the capture of user data (UD) as caption data.

In the cinema film recording apparatus 10 configured as described above, as shown in FIG. 2, the audio data Cn of the center channel (C) is encoded by the encoding circuits 12a and 12a.
The audio data SWn of the subwoofer channel (SW) is supplied to the encoding circuits 12e and 12l. Also, each channel (L), (L
C), audio data Ln, LCn, SL of (SL)
n are supplied to the encoding circuits 12b to 12d, respectively.
The audio data Rn, RCn, SRn of each channel (R), (RC), (SR) are
2i to 12k. In addition, audio data Ln of each channel (L), (LC), (SL)
LCn and SLn are respectively supplied to the mixer 11L, and audio data Rn, RCn and SRn of each channel (R), (RC) and (SR) are supplied to the mixer 11R.

The mixer 11L has channels (L),
Audio data Ln, LCn, (LC), (SL)
The left mix channel (LM) audio data LMn is formed from SLn and supplied to the encoding circuit 12m. In addition, the mixer 11R includes each channel (R),
(RC), (SR) audio data Rn, RCn,
The right mix channel (RM) audio data RMn is formed from SRn, and supplied to the encoding circuit 12f. The user data (UD) is transmitted to the encoding circuit 12
g, 12n.

Each of the encoding circuits 12a to 12g is provided with each of the channels (C), (L), (LC), (SL), (S
W ′), (RM) and (US) audio data C
n, Ln, LCn, SLn, SW'n, RMn, and user data USn are subjected to a high-efficiency encoding process combining band division encoding, orthogonal transform encoding, bit allocation, and the like to reduce the data amount by １ ／. And supplies them to the multiplexer 13L.

Each of the encoding circuits 12h to 12n
(C ′), (R), (RC), (SR), (SW),
(LM), (US) audio data C'n, R
n, RCn, SRn, SWn, LMn, and user data USn are subjected to high-efficiency coding processing combining band division coding, orthogonal transform coding, bit allocation, etc., to compress data amounts to 1/5, respectively. These are supplied to the multiplexer 13R.

The multiplexer 13L is connected to each encoding circuit 1
The left-channel audio data supplied in parallel from 2a to 12g is converted to serial data and supplied to the error correction data adding circuit 15L.

The multiplexer 13R converts the right-channel audio data supplied in parallel from each of the encoding circuits 12h to 12n into serial data, and supplies this to the delay memory 14R.

The delay memory 14R delays the right channel audio data so that the recording position of the left channel audio data and the right channel audio data are shifted by, for example, 17.8 frames as described above. And the error correction data adding circuit 1
Supply to 5R.

Each error correction data adding circuit 15L, 15R
Are C2 parity and C1 using cross-interleaved Reed-Solomon code for each audio data, respectively.
A signal for parity error correction is added, and this is supplied to synchronous data addition circuits 16L and 16R.

The synchronization data adding circuits 16L and 16R add synchronization data to the supplied audio data and supply the same to the modulation circuits 17L and 17R.

Each of the modulation circuits 17L and 17R adds a C1 parity, which will be described later, to the audio data and performs an interleaving process to form a film block 6 as one unit of recording. Then, head data including synchronization data, tracking pattern, identification information and the like is added to each of the film blocks 6, and this is added to the LED 18.
L, 18R.

The LEDs 18L and 18R adjust the amount of light emission based on the supplied data of the film block 6, and digitally record each audio data on each digital sound track 5L and 5R of the movie film 1 for each film block.

The movie film recording apparatus 10 stores the audio data in the film block 6 according to the above-described operation.
Each film block 6 is formed by interleaving an ECC full block formed by adding 2 parity blocks to 14 compression processing blocks.

More specifically, as shown in FIG. 3, for example, the left channel compression processing block has a header H0 of 1 byte (1 byte = 1 symbol = 8 bits: b0 to b7).
And 3-byte level control data Le0 to Le
2, 182 bytes of center channel (C) audio data C0 to C181, and 182 bytes of left center channel (LC) audio data LC0 to L
C181, 182 bytes of left channel (L) audio data L0 to L181, and 182 bytes of surround left channel (SL) audio data SL0 to SL0
SL181, 114 bytes of right mix channel (RM) audio data Rm0 to Rm113, 6
It is composed of byte audio data SW'0 to SW'5 of the subwoofer channel (SW ') and 8-byte user data (UD) U0 to U7 which are caption information and the like.

The level control data is
The right-channel audio data level, the right-center channel audio data level, and the surround right-channel audio data level when the right mix channel audio data is formed are each indicated by one byte. . The level of the audio data of the right mix channel is obtained by dividing each of the above three levels by 3, and is represented by the following equation.

RM = (RC + R + SR) / 3 Similarly, the compression processing block data of the right channel system is
For example, as shown in FIG.
Byte level control data Le0 to Le2;
62 bytes of subwoofer channel (SW) audio data SW0 to SW61 and 182 bytes of right center channel (RC) audio data RC0 to RC
181 and 182 bytes of right channel (R) audio data R0 to R181 and 182 bytes of surround right channel (SR) audio data SR0 to S
R181 and a 113-byte left mix channel (L
M) audio data Lm0 to Lm113 and 126
Byte center channel audio data C'0
To C'125 and 8-byte user data (US) U0 to U7, which are information on subtitles and the like.

The above level control data is
When the audio data of the left mix channel is formed, the level of the audio data of the left channel, the level of the audio data of the left center channel, and the level of the audio data of the surround left channel are each indicated by 1 byte. The level of the audio data of the left mix channel is obtained by dividing each of the above three levels by 3, and is represented by the following equation.

LM = (LC + L + SL) / 3 As shown in FIG. 5, the compression processing block is composed of 860 bytes of 43 symbols × 20 symbols, and further has a C1 parity of 15 symbols × 20 symbols. .

Then, as shown in FIG. 6, a total of eight compression processing blocks # 0 to # 7 of the first to the eighth are collected and EC
A C top half block is formed, and C2 parity and C1 parity of 43 symbols × 32 symbols are further added.

Similarly, as shown in FIG.
Of the compression processing blocks # 8 to #F are assembled to form an ECC bottom half block.
C2 parity and C1 parity of 32 symbols are added.

Then, as shown in FIG. 8, the 192 symbols (including the C2 parity of the 32 symbols) are included.
ECC top half block audio data T0
00 to T191, and audio data B000 to B1 of the ECC bottom half block for the above 192 symbols.
Audio data is extracted one symbol at a time from 91 and interleaved by alternately rearranging them as shown in the figure to form 16 film blocks 6 each consisting of 24 symbols.

That is, the 0th film block # 0
Are the 0th symbol T000 from the ECC top half block, the 0th symbol B000 from the ECC bottom half block, the 1st symbol T001 from the ECC top half block, and the 0th symbol T000 from the ECC bottom half block. .. Are formed by sequentially arranging the eleventh symbol T011 from the ECC top half block and the eleventh symbol B011 from the ECC bottom half block.

Similarly, the first film block # 1 includes the twelfth symbol T012 from the ECC top half block, the twelfth symbol B012 from the ECC bottom half block, and the ECC top half block. Thirteenth symbol T01 from
3, the thirteenth symbol B013 from the ECC bottom half block ... the 23rd symbol T023 from the ECC top half block
23rd symbol B from C bottom half block
023 are arranged in order.

Similarly, the second to fifteenth film blocks #
2 to # 15 are also formed.

As described above, in the movie film 1 recorded by the movie film recording apparatus 10, 16 bytes including the right channel system and the left channel system are stored in the user data (UD), for example, 11.6 ms. Can be recorded. Therefore, by recording subtitle data as user data, the movie film 1 records subtitles, for example, translations, without deviation from the video and audio recorded on the film.

At this time, up to 1376 ASCII codes can be sent per second, and up to 688 characters can be displayed assuming that 2 codes are allocated per character. For example, assuming that about three characters are displayed in one second, by inserting a language identification code into user data, 10
About 0 languages can be recorded at the same time. In addition, it goes without saying that information other than the text of the conversation and the translated text thereof can be recorded at the same time.

Next, a description will be given of a cinema film reproducing apparatus 20 capable of reproducing user data (UD) and audio data recorded on the cinema film 1.

The movie film reproducing apparatus 20 is, for example, shown in FIG.
As shown in FIG. 1, a projection unit 21, a reproduction signal processing unit 22,
And a subtitle projection unit 23.

In the movie film reproducing apparatus 20, the projection section 21 supplies the reproduction signal processing section 22 with the dot pattern data obtained by reading the digital audio tracks of the movie film 1 on the digital signal. The reproduction signal processing unit 22 detects audio data and user data based on the supplied respective dot pattern data, and outputs audio data such as a center channel (C), a left channel (L), and a right channel (R) to the speaker 24. On the other hand, the subtitle data based on the user data is supplied to the subtitle projection unit 23. The subtitle projection unit 23 displays, for example, a translation of a line on the screen 25 according to the supplied subtitle data.

More specifically, the movie film reproducing apparatus 20
For example, as shown in FIG. 10, reading is performed by first and second CCD line sensors 31L and 31R provided with reading units for one line in the width direction of the movie film 1, and CCD line sensors 31L and 31R. Demodulation circuits 32L and 32R for demodulating the demodulated audio data, and synchronous data detecting circuits 33L and 33R for detecting synchronous data from the demodulated audio data.

The movie film reproducing apparatus 20 includes an error correction circuit 34L for performing error correction processing on the left channel audio data from the synchronous data detection circuit 33L.
An error correction circuit 34R for performing error correction processing on the right channel audio data from the demodulation circuit 32R, and a delay for applying a delay of, for example, 17.8 frames to the left channel audio data from the error correction circuit 34L and outputting the delayed data. The memory 35 includes an error detection circuit 36 that detects an error flag that is output when each of the error correction circuits 34L and 34R cannot perform error correction.

The movie film reproducing apparatus 20 includes a demultiplexer 37L for outputting in parallel the left-channel audio data serially supplied from the delay memory 35, and a right-channel audio data serially supplied from the error correction circuit 34R. A demultiplexer 37R for outputting the audio data in parallel to the other channel, and decoding circuits 38a to 38n for decoding the left channel audio data and the right channel audio data from the demultiplexers 37L and 37R. Prepare.

The movie film reproducing apparatus 20 includes data selectors 39a to 39i for selecting and outputting left channel audio data and right channel audio data based on the detection output from the error detection circuit 36.

When the audio data is reproduced in the movie film reproducing apparatus 20 configured as described above, the first CCD line sensor 31L and the CCD line sensor 31
R reads the audio data recorded on each digital sound track 5L, 5R. The first CCD line sensor 20L is a film film 1 shown in FIG.
The left-channel audio data is read line by line in the width direction of the movie film 1 from the left edge 1L side of the video film 2 toward the video area 2, and this audio data is supplied to the demodulation circuit 32L. The second CCD line sensor 20R reads right channel audio data line by line in the width direction of the movie film 1 from the right edge 1R side of the movie film 1 toward the image area 2, and demodulates the read data. Supply to the circuit 32R.

The demodulation circuits 32L and 32R perform demodulation processing on the left channel audio data and the right channel audio data.
L, 33R.

The synchronous data detecting circuits 33L and 33R detect synchronous data from the supplied audio data, perform synchronous data processing on the synchronous data, and supply the synchronous data to the error correction circuits 34L and 34R.

The error correction circuit 34L adds the left channel audio data from the synchronous data detection circuit 33L to the
An error correction process is performed using the C1 parity and the C2 parity, and the error correction process is supplied to the delay memory 35. If the error correction cannot be performed, an error flag is formed, and the error flag is supplied to the error detection circuit 36.

The error correction circuit 34R performs an error correction process on the right channel audio data from the synchronous data detection circuit 33R using the C1 parity and the C2 parity, and supplies this to the demultiplexer 37R. When the correction cannot be performed, an error flag is formed and supplied to the error detection circuit 36.

Here, the delay memory 35 delays the left-channel audio data by, for example, 17.8 frames to match the timing with the right-channel audio data, and demultiplexes the data with the demultiplexer 37L. To supply.

The demultiplexer 37L converts center channel (C) audio data, left channel (L) audio data, and left channel audio data supplied serially from the delay memory 35 from the left channel audio data.
The audio data of the center left channel (LC), the audio data of the left surround channel (SL), the audio data of the subwoofer channel (SW), the audio data of the right mix channel (RM), and the user data (UD) are formed. Are supplied to the decoding circuits 38a to 38g, respectively.

The demultiplexer 37R converts the right channel audio data supplied from the error correction circuit 34R serially into center channel (C) audio data, right channel (R) audio data,
The center right channel (RC) audio data, right surround channel (SR) audio data, subwoofer channel (SW) audio data, left mix channel (LM) audio data, and user data (UD) are formed. Are supplied to the decoding circuits 38h to 38n, respectively.

Each of the decoding circuits 38a to 38d respectively outputs the left channel audio data C, L, LC, S
L are efficiently decoded and supplied to the left-channel data selectors 39a to 39d. The decoding circuit 38e decodes the left-channel audio data SW with high efficiency and supplies it to the right-channel data selector 39h. The decoding circuit 38f decodes the left-channel audio data RM with high efficiency and supplies it to the right-channel data selectors 39e to 39g. The decoding circuit 38g decodes the left-system user data with high efficiency and supplies it to the data selector 39i.

The decoding circuit 38h decodes the right channel audio data C with high efficiency and supplies it to the data selector 39a. Further, each decoding circuit 38
i to 38l respectively decode the right channel audio data R, RC, SR, and SW with high efficiency and supply them to the right channel data selectors 39e to 39h. The decoding circuit 38m decodes the right channel audio data RM with high efficiency, and supplies the decoded data to the data selectors 39b to 39d. Decoding circuit 38n
Decodes the right-system user data with high efficiency and supplies it to the data selector 39i.

A detection output from the error detection circuit 36 is supplied to each of the data selectors 39a to 39i. Therefore, each of the data selectors 39a to 39i can detect data for which error correction has not been performed, based on the detection output. Each of the data selectors 39a to 39i is supplied with two pieces of audio data, and selects and outputs data other than the data for which error correction was not performed.

That is, the data selector 39a selects and outputs, from the right channel system and left channel system center channel audio data, the one for which error correction has been performed. The data selector 39b selects and outputs the audio data of the left channel and the audio data of the left channel, for which the error correction has been performed. The data selector 39c selects and outputs the audio data of the left center channel and the audio data of the left mix channel, for which the error correction has been performed. Further, the data selector 39d selects and outputs one of the left surround audio data and the left mix channel audio data that has been subjected to the error correction.

The data selector 39e selects and outputs one of the right channel audio data and the right mix channel audio data that has been subjected to error correction. In addition, the data selector 39f selects and outputs the right center channel audio data and the right mix channel audio data for which error correction has been performed. In addition, the data selector 39g selects and outputs one of the surround right channel audio data and the right mix channel audio data that has been subjected to the error correction. The data selector 39h selects and outputs the audio data of each subwoofer, on which the error correction has been performed. The data selector 39i
Among the left-system user data and the right-system audio data, the one that has been subjected to error correction is selected and output.

The user data output in this way is supplied to the subtitle projecting section 21 as shown in FIG.

In addition, as shown in FIG. 11, for example, as shown in FIG.
For example, a liquid crystal display 27 for displaying subtitles may be provided via the display drive circuit 26, for example. Thereby, the cost of the equipment can be reduced as compared with the case where the subtitle projection unit 23 is provided.

As described above, the movie film reproducing apparatus 20 according to the present invention reproduces user data on which subtitle data is recorded together with audio data recorded on a digital sound track of a movie film, thereby providing superimposed subtitles. Can be shown, and, for example, a translation of dialogue can be displayed.

[0069]

As described in detail above, according to the motion picture film of the present invention, subtitle data can be recorded together with audio data on a digital sound track. Therefore, it is possible to record a movie with superimposed subtitles while maintaining the recording state of the video recording area, so that, for example, if translations in several languages are recorded, language translations can be performed on the same movie film. The movie can be shown in different countries. In addition, if the content corresponding to the voice is recorded, the hearing impaired person can understand the content of the voice. Furthermore, even if this movie film is damaged, it is only necessary to record audio data and subtitle data on the digital sound track of the new movie film, and therefore, it can be easily exchanged with another movie film.
Further, since the video, audio, and character information are recorded on one film, it is convenient for handling. You.

According to the motion picture film recording apparatus of the present invention, caption data can be recorded together with audio data on a digital sound track. Therefore, video, audio, and subtitle information can be easily recorded together on a single movie film while maintaining the recording state of the video recording area.

According to the motion picture film reproducing apparatus of the present invention, the subtitle data recorded on the digital sound track of the motion picture film can be reproduced together with the audio data. Can be displayed.

[Brief description of the drawings]

FIG. 1 is a plan view schematically showing a configuration of a movie film according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a specific configuration of the movie film recording device according to the embodiment of the present invention.

FIG. 3 is a diagram for explaining left-channel audio data and the like recorded in a motion picture film compression processing block according to the embodiment;

FIG. 4 is a diagram for explaining right-channel audio data and the like recorded in a compression processing block of a movie film according to the embodiment.

FIG. 5 is a diagram showing a configuration of the compression processing block.

FIG. 6 is an ECC composed of the compression processing block and the like.
It is a figure for explaining a top half block.

FIG. 7 is an ECC composed of the compression processing block and the like.
It is a figure for explaining a bottom half block.

FIG. 8 shows the ECC top half block and the EC
It is a figure for explaining the state where a film block is formed from a C bottom half block.

FIG. 9 is a diagram for explaining a movie film reproducing device according to the present invention.

FIG. 10 is a block diagram showing a specific configuration of the movie film reproducing apparatus.

FIG. 11 is a diagram showing another embodiment of the movie film reproducing apparatus.

[Explanation of symbols]

5L, 5R digital soundtrack, 12 encoding circuit, 18 LED, 21 projection unit, 22 playback signal processing unit, 23 subtitle projection unit

Claims (9)

[Claims] 1. A motion picture film comprising a digital sound track in which a subtitle data corresponding to the audio data is recorded together with the audio data in a running direction. 2. The movie film according to claim 1, wherein the subtitle data is at least character or symbol data corresponding to the audio data. 3. The movie film according to claim 1, wherein the subtitle data is data of one or more translations of a language corresponding to the audio data. 4. A movie film recording apparatus for recording audio data on a digital sound track formed along a running direction of a movie film, comprising: audio data generating means for generating audio data; and caption data generation for generating caption data. Means for recording audio data on the digital sound track by changing a light emitting state of a recording light source according to the audio data or the caption data, and recording means for recording the caption data. Characteristic movie film recording device. 5. The movie film recording apparatus according to claim 4, wherein said subtitle data generating means generates subtitle data of at least characters or symbols corresponding to said audio data. 6. The movie film recording apparatus according to claim 4, wherein said subtitle data generating means generates subtitle data of one or more translations of a language corresponding to said audio data. 7. A motion picture film reproducing apparatus for reproducing audio data of a digital sound track formed along a running direction of a motion picture film. A movie film reproducing apparatus comprising: detecting means for detecting caption data based on the dot pattern data; and display means for displaying characters or symbols corresponding to the caption data. 8. The motion picture film reproducing apparatus according to claim 7, wherein said display means displays at least characters or symbols corresponding to said audio data based on said subtitle data. 9. The movie film reproducing apparatus according to claim 7, wherein said display means displays a translation in a language corresponding to said audio data based on said subtitle data.