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JP2006030443

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DESCRIPTION JP2006030443
PROBLEM TO BE SOLVED: To reproduce main data in an optimum reproduction environment.
SOLUTION: Main data and space characteristic data are read out from a recording medium 1 in
which predetermined main data and space characteristic data consisting of space characteristic
information in an environment different from the environment where the main data is
reproduced are recorded. A reading unit 20 and a processing unit 25 that performs
predetermined reproduction processing on main data based on the space characteristic data read
by the reading unit 20 are provided. [Selected figure] Figure 4
Recording medium, recording apparatus and method, data processing apparatus and method,
data output apparatus and method
[0001]
The present invention relates to a data reproduction apparatus and method for reading and
reproducing main data and predetermined environmental parameters recorded on the recording
medium, on which the main data and predetermined environmental parameters are recorded.
[0002]
In musical concerts such as classical music, jazz music and pop music, and in concerts for operas
and theaters, space acoustic characteristics such as reverberation characteristics and reflection
characteristics of sound differ depending on the venue, so even if they are performed by the
same artist, Different atmospheres are produced at each venue.
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Also, the user can actually feel the atmosphere of each venue by actually visiting the venue or
playing a sound source recording a concert.
[0003]
For example, Patent Document 1 describes a method for correcting the response characteristic of
a sound field at a predetermined place to a desired characteristic. In addition, Patent Document 2
describes a method of measuring a reverberation component of a predetermined venue
superimposed on a subsequent reverberation component.
[0004]
In addition, in the audio apparatus, an AV amplifier and a surround processor are conventionally
mounted which simulate various sound fields and add a reverberation component to the
recorded music signal (main data).
[0005]
JP-A-6-327089 JP-A 2003-263179
[0006]
By the way, the user has a desire to experience the opera performed in a certain domestic theater
in a famous overseas theater (for example, La Scala of Italy or the Opera of Paris).
There is also a desire for the user to experience the music recorded in the studio in the
atmosphere of a predetermined live venue.
[0007]
Therefore, in order to solve the problems described above, the present invention is a medium for
recording main data, a recording medium on which a plurality of space parameters related to the
main data are recorded, a main data, and a plurality of space parameters related to the main data
Recording apparatus and method for recording, main data, data processing apparatus and
method for reading a plurality of space parameters related to the main data from the medium,
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main data and a plurality of space parameters related to the main data via a network Provided is
a data output apparatus and method provided to a user.
[0008]
In order to solve the problems described above, the recording medium according to the present
invention records predetermined main data and space characteristic data including space
characteristic information in an environment different from the environment in which the main
data is reproduced. Become.
[0009]
Further, in order to solve the above-mentioned problems, the recording apparatus according to
the present invention multiplexes predetermined main data and space characteristic data
consisting of space characteristic information in an environment different from the environment
in which the main data is reproduced. And a processing means for performing predetermined
processing on the data multiplexed by the multiplexing means, and a recording means for
recording the data processed by the processing means on a recording medium.
[0010]
Further, in the recording method according to the present invention, in order to solve the abovementioned problems, predetermined main data and space characteristic data consisting of space
characteristic information in an environment different from the environment in which the main
data is reproduced are multiplexed. And a processing step of performing predetermined
processing on the data multiplexed in the multiplexing step, and a recording step of recording
the data processed in the processing step on a recording medium.
[0011]
Further, in the data processing apparatus according to the present invention, in order to solve the
above-mentioned problems, predetermined main data and space characteristic data consisting of
space characteristic information in an environment different from the environment in which the
main data is reproduced is used. Reading means for reading the main data and the space
characteristic data from the recording medium, and processing means for performing
predetermined reproduction processing on the main data based on the space characteristic data
read by the reading means Prepare.
[0012]
Further, in the data processing method according to the present invention, in order to solve the
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above-mentioned problems, predetermined main data and space characteristic data comprising
space characteristic information in an environment different from the environment in which the
main data is reproduced is used. A reading step of reading the main data and the space
characteristic data from the recording medium, and a processing step of performing a
predetermined reproduction process on the main data based on the space characteristic data
read in the reading step Have.
[0013]
Further, in order to solve the above-mentioned problems, the data output apparatus according to
the present invention has a first database in which a plurality of main data are stored, and a
space characteristic in an environment different from an environment in which the main data is
reproduced. A second database in which space characteristic data consisting of information is
stored, a selection means for selecting predetermined main data from the first database, and the
main data selected by the selection means from the first database First reading means for
reading, second reading means for reading space characteristic data associated with the main
data read by the first reading means from the second database, and the first reading means
Output means for integrating and outputting the main data read out by the second reading
means and the space characteristic data read out by the second reading means Obtain.
[0014]
Furthermore, in the data output method according to the present invention, in order to solve the
problems described above, a first reading step of reading predetermined main data from a first
storage unit storing a plurality of main data, and main data Space characteristic data associated
with the main data read out in the first reading step from the second storage unit in which space
characteristic data consisting of space characteristic information in an environment different
from an environment in which And an output step of integrally outputting the main data read out
in the first read step and the space characteristic data read out in the second read step.
[0015]
In the present invention, the user can listen to music and movies from various theaters, halls, live
venues, churches, outdoors, and the like.
Since various kinds of space characteristic data selected by the producer are recorded in the
recording medium, the user can select any space characteristic data from the same music source
and view music and movies in various environments. Can.
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[0016]
Hereinafter, as an embodiment of the present invention, a recording medium on which
predetermined data is recorded, a recording apparatus for recording predetermined data on the
recording medium, and reproduction processing for reproducing data recorded on the recording
medium The apparatus is described below.
[0017]
The recording medium 1 has recorded therein space characteristic data including main data and
space characteristic information in a predetermined reproduction environment when the main
data is reproduced.
The main data is video data or music data.
If the recording medium 1 is, for example, a disc-shaped recording medium comprising a lead-in
area A1, a program area A2 and a lead-out area A3 as shown in FIG. 1, the main data and the
space characteristic data are program area A2. Is recorded in
[0018]
Also, the space characteristic data includes reflection characteristics and reverberation
characteristics relating to the sound of the space in a predetermined reproduction environment
where the main data (music data) is reproduced, and is generated, for example, from
measurement results by the proximity four-point method .
[0019]
Here, the proximity four-point method will be described.
The proximity four-point method is one of the methods to measure space information of a sound
field such as a concert hall, a live hall, a church, or the outdoors, and four points not on the same
plane The impulse response is recorded by microphones arranged at three points at a distance of
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about 5 cm from the origin on three orthogonal axes, and the arrival time of the same reflected
sound is determined by correlation processing etc. focusing on a slight difference in its time
structure. This is a method of calculating the distances from the four receiving points and the
directions of arrival, and determining the positions of equivalent reflected sound and virtual
sound sources.
[0020]
Further, as shown in the flowchart of FIG. 2, the proximity four-point method performs waveform
storage by microphone collection of the reference signal in the space of each environment (step
ST1), and calculates characteristic parameters based on sound absorption form, for example,
reverberation Calculations and correlation processing of characteristics, reflection characteristics
and the like are performed (step ST2), and space characteristic data of each space is calculated
(step ST3).
[0021]
Further, the recording medium 1 may have a plurality of different space characteristic data
recorded thereon.
Since the space characteristic data is different depending on the listening place even in the same
environment, a plurality of space characteristic data obtained by measurement at different places
in the same environment are recorded in the recording medium 1 Also good.
Furthermore, the recording medium 1 may have the location and / or the name of the place
where the space characteristic data is generated as identification data of the space characteristic
data.
[0022]
In addition, the spatial characteristic data, instead of the reverberation characteristic and
reflection characteristic related to the sound described above, the position of the performer
(sound source), the position and size of the wall or ceiling in the concert hall, reflectance
characteristic and sound absorption coefficient characteristic, It may be configured from the
position of the sound microphone.
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In this case, an arithmetic processing unit that calculates the reverberation characteristic, the
reflection characteristic, and the like from these pieces of information is provided in the
separation processing unit 23 (FIG. 4) of the reproduction device 3 described later.
[0023]
The space characteristic data includes data for illumination added to the video data, an object,
background information and the like, and is generated by, for example, a personal computer.
[0024]
Further, in the recording medium 1, recording of data is performed by the recording device 2 as
shown in FIG.
The configuration and operation of the recording device 2 will be described below.
As shown in FIG. 3, the recording apparatus 1 has a data input unit 10 to which data is input, a
multiplexing processing unit 11 to multiplex data input through the data input unit 10, and a
multiplexing processing unit. An error correction coding unit 12 that performs error correction
coding processing on the data multiplexed in 11; and a modulation unit 13 that performs
predetermined modulation on data that has been subjected to error correction coding processing
in the error correction coding unit 12; A recording unit 14 for recording data modulated by the
modulation unit 13 on the recording medium 1 is provided.
[0025]
The data input unit 10 receives a video data input unit to which video data is input, a music data
input unit to which music data is input, a space characteristic data input unit to which space
characteristic data is input, and address data An address data input unit is provided, and the data
input through each input unit is supplied to the multiplexing processing unit 11.
Further, the data input unit 10 may include a plurality of space characteristic data input units in
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order to input a plurality of different space characteristic data.
[0026]
The multiplexing processing unit 11 multiplexes the input video data, music data, and space
characteristic data according to the address data input through the input unit, and supplies the
multiplexed data to the error correction coding unit 12.
[0027]
The recording unit 14 performs the data recording operation according to the type of recording
medium on which the data modulated by the modulation unit 13 is recorded.
[0028]
In this manner, the recording device 2 according to the present invention multiplexes the input
main data and the space characteristic data in an environment different from the environment in
which the main data is reproduced, and predetermines the multiplexed data. The above
processing is performed and recording is performed on the recording medium 1.
[0029]
The configuration of a reproduction apparatus for reproducing data recorded on the abovedescribed recording medium 1 will be described below.
Note that the recording medium 1 includes music data recorded in a studio, space characteristic
data A of the first hall, which is measured by the above-described close proximity four-point
method, and space characteristic data B of the second hall. It is assumed that the space
characteristic data C in the third hole is recorded in the program area.
[0030]
As shown in FIG. 4, the reproducing apparatus 3 includes a reading unit 20 for reading data from
the program area of the recording medium 1, a demodulation unit 21 for demodulating the read
data, and an error correction unit 22 for performing an error correction process on the data. ,
Separation processing unit 23 for separating and processing music data and space characteristic
data, selection unit 24 for selecting one space characteristic data from a plurality of space
characteristic data A, B and C, and space characteristic data as music data And addition /
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subtraction processing unit 25 which performs addition processing or subtraction processing,
and DA conversion unit 26 which converts music data into an analog signal.
[0031]
The reading unit 20 includes a rotation driving unit 30 that rotationally drives the recording
medium 1, an optical unit 31 that reads data from the recording medium 1, and an RF unit 32
that generates various data based on the data read by the optical unit 31. And a control unit 33
that controls the rotation operation of the rotation drive unit 30 and the operation of the optical
unit 31 based on the data supplied from the RF unit 32.
[0032]
The selection unit 24 selects one space characteristic data from the space characteristic data A,
B, C separated by the separation processing unit 23 according to the user's operation, and adds
the selected space characteristic data to the addition / subtraction processing unit 25. Supply.
[0033]
The addition / subtraction processing unit 25 adds or subtracts the space characteristic data
supplied from the selection unit 24 to the music data supplied from the separation processing
unit 23 according to the user's operation, and after the addition or subtraction processing Are
supplied to the DA converter 26.
[0034]
Here, for example, when the music data recorded in the first hole, that is, the music data to which
the space characteristic data A of the first hole is added is recorded in the recording medium 1,
the music data is The operation of the reproducing apparatus 3 when outputting as played on the
second hole having the space characteristic data B will be described below according to the
flowchart shown in FIG.
[0035]
The user performs a predetermined operation for instructing reproduction of data recorded on
the recording medium 1 (step ST10).
The reading unit 20 reads data from the recording medium 1 according to the user operation,
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and supplies the read data to the demodulation unit 21 (step ST11).
The demodulation unit 21 performs predetermined demodulation processing on the data
supplied from the reading unit 20, and supplies the data after demodulation to the error
correction unit 22 (step ST12).
The error correction unit 22 performs an error correction process on the data supplied from the
demodulation unit 21 and supplies the data after the error correction process to the separation
processing unit 23 (step ST13).
The separation processing unit 23 separates the music data and the space characteristic data
based on the data after the error correction processing, supplies the music data to the addition /
subtraction processing unit 25, and supplies the space characteristic data to the selection unit 24
(step ST14).
The selecting unit 24 selects the space characteristic data A and the space characteristic data B
according to the user's operation (step ST15).
[0036]
The addition / subtraction processing unit 25 subtracts (removes) the space characteristic data A
supplied from the selection unit 24 from the music data supplied from the separation processing
unit 23, and adds the space characteristic data B to the music data after the subtraction
processing. The addition (addition) processing is performed, and the processed music data is
supplied to the DA conversion unit 26 (step ST16).
The DA conversion unit 26 converts the music data supplied from the addition / subtraction
processing unit 25 into analog, and outputs the converted music data (step ST17).
[0037]
Therefore, the reproducing device 3 subtracts (removes) the one space characteristic data from
the music data to which the one space characteristic data is added, adds (adds) the other space
characteristic data B to the music data, and outputs can do.
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[0038]
Thus, the reproducing apparatus 3 according to the present invention reads the data recorded in
the recording medium 1, performs predetermined processing on the read data, and separates the
main data and the space characteristic data from the processed data. The predetermined spatial
characteristic data is selected from the separated spatial characteristic data, the selected spatial
characteristic data is added (added) or subtracted (removed) to the main data, and the
predetermined spatial characteristic data is added (added Since the music data subjected to the
subtraction or removal (removal) is output, the music can be enjoyed in various environments
reproduced by the space characteristic data prepared by the producer as the reproduction
environment of the music data.
[0039]
The reproducing device 3 subtracts the space characteristic data A separated from the main data
from the selected space characteristic data B to generate difference space characteristic data C,
and the main data to which the space characteristic data A is added is generated. On the other
hand, the difference space characteristic data C may be further added to output music data for
reproduction.
[0040]
The main data recorded in the recording medium 1 may be video data such as a movie.
In this case, data giving a predetermined effect to the video data is recorded in the recording
medium 1 as space characteristic data.
[0041]
In this manner, according to the present invention, the user can listen to music and movie sounds
on the premise of various theaters, halls, live venues, churches, outdoors, and the like.
Since various space characteristic data selected by the producer are recorded in the recording
medium 1, the user can select any space characteristic data from the same music source and
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view music and movies in various environments. be able to.
[0042]
Also, the space characteristic data may not be recorded in the recording medium 1, and may be
stored in a database connected to the Internet.
In this case, the system is made to download predetermined spatial characteristic data from
among the spatial characteristic data stored in the database according to the user's request.
[0043]
Here, the space characteristic data providing system 4 will be described.
As shown in FIG. 6, the space characteristic data provision system 4 is a space characteristic data
provided by a plurality of music data, a database 5 storing a plurality of space characteristic data,
and music data downloaded from the database via a network. And a reproduction device 3 for
performing reproduction processing.
The configuration of the reproduction device 3 used in the space characteristic data providing
system 4 is as described above, and thus the detailed description is omitted.
[0044]
The database 5 includes a music database a storing a plurality of music data and a space
characteristic database b storing a plurality of space characteristic data obtained by a
predetermined measurement method.
Also, the space characteristic data stored in the space characteristic database b is associated with
each music data stored in the music database a.
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[0045]
Here, the procedure for the user to download music data by the space characteristic data
providing system 4 will be described according to the flowchart shown in FIG.
[0046]
In step ST20, the reproducing device 3 instructs the database 5 to supply predetermined music
data in accordance with the user's operation.
The user operates the playback device 3 to download desired music data from the database 5
connected via the network.
[0047]
In step ST21, the database 5 outputs the music data and the space characteristic data related to
the music data in accordance with the request for downloading the music data.
In the database 5, a plurality of space characteristic data are associated with each music data in
advance by the producer. The spatial characteristic data providing system 4 may be configured
to allow the user to download all of the associated spatial characteristic data, or only arbitrary
spatial characteristic data among the associated spatial characteristic data. May be selected by
the user for downloading.
[0048]
In step ST22, the reproduction device 3 performs a reproduction process of music data based on
the space characteristic data downloaded from the database 5.
[0049]
In addition, the space characteristic data providing system 4 may introduce a charging process
when downloading music data in the process of step ST20.
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In the charging step, a system may be used that charges each time music data is downloaded, or
a system that changes the charge according to the number of space characteristic data.
[0050]
Thus, the space characteristic data providing system 4 according to the present invention
provides music data desired by the user from the database 5 connected via the network, together
with the space characteristic data of the music data, Since the music data is reproduced by the
reproduction device 3 based on the space characteristic data, the music can be viewed in various
environments reproduced by the space characteristic data prepared by the creator as the
reproduction environment of the music data.
[0051]
The data stored in the database 5 may be other than music data, and may be, for example, video
data such as a movie.
In this case, as spatial characteristic data, data giving a predetermined effect to the video data is
stored in the spatial characteristic database b.
[0052]
1 is a schematic view of a recording medium according to the present invention. It is a flowchart
which shows the measurement procedure of the space characteristic data by the proximity ¦
contact 4 point method. It is a block diagram showing composition of a recording device
concerning the present invention. It is a block diagram showing composition of a reproduction
device concerning the present invention. FIG. 5 is a flowchart for describing an example of the
operation of the playback device shown in FIG. 4; FIG. It is a figure which shows the structure of
the space characteristic data provision system based on this invention. FIG. 7 is a flowchart for
describing an example of the operation of the space characteristic data providing system shown
in FIG. 6;
Explanation of sign
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[0053]
Reference Signs List 1 recording medium, 2 recording device, 3 reproduction device, 4 space
characteristic data providing system, 5 database, 10 data input unit, 11 multiplexing processing
unit, 12 error correction coding unit, 13 modulation unit, 14 recording unit, 20 reading , 21
demodulation unit, 22 error correction unit, 23 separation processing unit, 24 selection unit, 25
addition / subtraction processing unit, 26 DA conversion unit
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