JP3451273B2 - Recording medium on which audio data is recorded, audio data reproducing method and computer game system - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to recording and reproducing audio data used in video games.

[0002]

2. Description of the Related Art Among video games played while looking at a game screen displayed on a display device, in a sports game such as a baseball game, an increase in the number of cases in which a live voice is reproduced as if it is a live TV broadcast. . The voice data necessary for the live commentary includes voices for reading out the player name, in addition to the voices of the live commentary lines (“strike”, “take center”, etc.). For example, the total number of players registered on the bench of 12 professional baseball teams is 200.
Since it exceeds the number of people, only the voice data of the player name is a considerable amount. Also, in order to reproduce a highly realistic commentary in the game, it is necessary to increase the types of dialogue in the commentary.
For this reason, the amount of voice data required for a live condition tends to be enormous. For this reason, a technique of compressing the voice data for the live condition and recording it on a recording medium is used.

There is a CDROM-XA as a data format format for recording voices for games on a CD-ROM. CDROM-XA is a format for recording voice and images on a CD-ROM. Here, voice is AD.
PCM (Adaptive Differential pulse code modulatio
n) Compressed by the method and recorded. As a result, the storage capacity required for recording voice can be reduced.

FIG. 9 is a schematic diagram showing a CD-ROM 500 in which ADPCM audio data is recorded, and FIG.
FIG. 11 is a schematic diagram showing a data structure of a multi-channel ADPCM file, and FIG. 11 is a diagram showing an arrangement in the CD-ROM of ADPCM sectors in which ADPCM data is stored.

As shown in FIG. 9, a plurality of audio data files 511, 5 are recorded on the recording surface 502 of the CD-ROM.
12 ... are sequentially arranged in a spiral shape.

In FIG. 10, the leftmost number of each file indicates a channel number. In the example of FIG. 10, each file has 16 channels from channel 0 to channel 15. A0 to A15 indicate audio data included in the first file 511, and B0 to B15 indicate audio data included in the second file 512. As shown in FIG. 10, one ADPCM audio data is associated with each channel. For example, the first file 51
The channel 0 of 1 is associated with the audio data A0, and the channel 8 of the second file 512 is associated with the audio data B8. As a result, each audio file has 1
16 pieces of audio data are included corresponding to 6 channels.

As shown in FIG. 11, the ADPCM data A0 to A15, B0 to B15, ... Are divided into equal lengths and discretely stored in the sectors of the CD-ROM 500. A series of sectors in which one piece of ADPCM data is divided and stored is arranged at every sector (16 sectors in the example of FIG. 11) equal to the number of channels.
This number is the reproduction speed of CD-ROM500 and ADPC
It depends on the compression rate of M data. For example, ADPCM data compressed to ⅛ for double speed reproduction is recorded every 16 sectors.

In FIG. 11, the m-th ADPCM data is
Is a code representing ADPCM data, where m is a natural number
Is added with the subscript of m. For example, for data A0
The first part is A0₁No. 2 of data A0
Eye part is A0₂It is represented by. Each part of audio data
Sectors are stored in order according to the channel number.
Will be placed. That is, the sound assigned to channel 0
First part A0 of voice data ₁Is the first of the first file 511
First sector of channel 1 audio data stored in sector
Part A1₁Is stored in the second sector, and so on.
ing. First portion A15 of audio data of channel 15
₁After the 16th sector where is stored, the sound of channel 0
Second part A0 of voice data₂Is stored in the 17th sector
Continue. As a result, the sounds associated with the 16 channels are
The voice data will be interleaved and arranged.
Similarly, for other audio files, the sound of 16 channels
The voice data is interleaved and arranged.

For multi-channel audio files,
By reading the first sector to the last sector of the file and performing a reproducing process such as decoding using only the data of one channel of the read data, only the audio data of that channel can be reproduced. Therefore, when reproducing the desired audio data, it is necessary to specify the file containing the audio data and the corresponding channel.

[0010]

In the above multi-channel data structure, blank (NULL) data may be arranged due to the difference in the length of the audio data. Figure 1
In FIG. 0 and FIG. 11, blank data is represented by “NUL” or “N”. For example, in the first file 511, the length of channel 0 data is 10 sectors, while the length of channel 6 data is 1 sector. Therefore, 7 in the second to tenth blocks of the first file 511
All the second sectors are filled with blank data. In this way, the blank data is arranged in the channels to which the audio data less than the length of the longest data included in the file is allocated, and the length of the data string of each channel is made uniform.

Therefore, the size of the audio file in the CDROM-XA format depends on the longest audio data contained in the file. If the audio data having a short length and the audio data having a long length are mixed in one file, a useless recording area which must be filled with blank data is generated. When the number of voice data such as live voice data of a baseball game is large and the number of files is large, this useless storage area becomes large, and the storage capacity to be used for the game program and the game data is pressed.

The present invention has been made in view of the above, and an object thereof is to provide a technique for efficiently recording audio data in a recording medium.

[0013]

In one aspect of a computer-readable recording medium according to the present invention, audio data of audio output during a video game is recorded. In the file recorded on this recording medium, each of a plurality of data strings whose order of arrangement is determined is composed of a plurality of audio data, and the audio data included in each data string is divided into a plurality of divided data. The divided data for each data string is arranged in an interleaved order in the order determined for each data string. The recording medium also records position specifying information for specifying the position of the divided data of each audio data in this file. Further, in this recording medium, the computer is caused to determine the position of the audio data according to the situation of the video game by referring to the position specifying information,
A program for outputting a sound based on the voice data at the determined position is also recorded. The reading order may be determined for each divided data of each audio data, and the position identification information includes the position of the divided data in which the reading order of each audio data is the head and the data length of the audio data. It may be.

In another aspect of the computer-readable recording medium according to the present invention, audio data reproduced in a video game is recorded. This recording medium has a header information recording area in which information used by a computer for reading desired audio data is recorded, and a single n
An audio file recording area in which an audio file of a channel (n is an integer of 2 or more) is recorded. In the audio file recording area, a data string including a plurality of audio data is associated with each channel. In the audio file recording area, the data string of each channel is divided and arranged every n sectors, and the sectors storing these divided data are interleaved. In the header information recording area, position specifying information for specifying the position of the divided data of the audio data is recorded for each audio data. Unlike the prior art, it is not necessary to make the length of the data string of each channel uniform for each file, and therefore the amount of blank data tends to be smaller.

This audio file has a structure in which a plurality of data blocks consisting of consecutive n sectors are arranged in succession. The computer can extract desired audio data from the audio file and reproduce it by reading the position specifying information.

The position specifying information includes, for each audio data, block information (for example, a block number) indicating a data block including a head sector of the audio data,
It may include channel information (for example, a channel number) indicating a channel with which the audio data is associated, and the length of the audio data.

In the audio data reproducing method according to the present invention, block information, channel information and data length for each audio data are read from the storage medium and stored in the storage device. Next, the storage device is searched for block information, channel information and data length of the audio data to be reproduced. Reading is started from the data block indicated by the searched block information, and the number of data blocks corresponding to the searched data length is read. The voice is reproduced by using the data of the channel indicated by the searched channel information in the read data.

The program for causing a computer to execute this reproducing method may be stored in a recording medium in which audio data is recorded according to the present invention, or may be stored in a separate recording medium or a storage device of a computer. .

[0019]

DETAILED DESCRIPTION OF THE INVENTION Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Note that, for ease of understanding, the same reference numerals are used as much as possible for the same elements common to the drawings.

FIG. 1 is a schematic diagram showing an example of the structure of an audio file according to the embodiment of the present invention. As shown in FIG. 1, in this embodiment, all the audio data A0 to A1.
5, B0 to B15, C0 to C15 ... Are combined into one multi-channel audio file 100. The leftmost number indicates the channel number. The audio file 100 contains
There are 16 channels numbered 0 to 15. In the present embodiment, a data string in which a plurality of audio data are continuously arranged is associated with each channel. In the example of FIG. 1, channel 0 has audio data A0, B0, C0.
The data strings in which ... are sequentially arranged are associated with each other, and channel 1
Is associated with a data string in which the audio data A1, B1, C1 ... Are sequentially arranged.

The numbers arranged in the upper part of FIG. 1 represent the number of sectors used when recording a channel data string on a recording medium. In FIG. 1, for example, the length of data A0 of channel 0 is 10 sectors, and the data B of channel 8 is B.
The length of 8 is 8 sectors. The data length is determined for convenience of illustration, and the actual audio data length is often longer. The number of channels of an audio file is determined according to the compression rate of audio data. For example, when recording this audio file on a CD-ROM,
The number of channels is determined by the reproduction speed and compression rate of the CD-ROM. In this example, each audio data is compressed to 1/8 for double speed reproduction of a CD-ROM.

The length of the data string of each channel is equal to the longest one of the total length of the voice data group associated with each channel. Blank data is added to a channel to which a voice data group having a total length less than this length is assigned. In FIG. 1, channel 1 audio data groups A1 to Z1
Is the longest and is k sectors (k is a natural number). The data strings of the other channels have a length of k sectors by providing blank data after the audio data group.

FIG. 2 shows a CD-ROM according to this embodiment.
It is a figure which shows the data array of the audio | voice file 100 recorded on. Each audio data is divided into equal length CD
-Discretely stored in ROM sectors. A series of sectors in which one audio data is divided and stored is the number of sectors equal to the number of channels (16 sectors in this embodiment).
Placed every other time. In FIG. 2, m-th audio data
The second part (m is a natural number) is represented by adding a subscript of m to the code representing the audio data. For example, the first part of the data A0 is represented by A0 _1, ninth part of the data B1 is represented by B1 _9. The sectors storing the respective parts of the audio data are arranged in the order according to the channel number. That is, the first portion A0 ₁ of the first audio data in channel 0 is stored in the first sector of the audio file 100, and then the first portion A1 ₁ of the first audio data in channel 1 is stored in the second sector. It will be done. First portion A1 of the first audio data in channel 15
After the 16th sector in which 5 ₁ is stored, the 17th sector in which the second portion A0 ₂ of the first audio data in channel 0 is stored.
Sectors follow. As a result, the audio data associated with 16 channels are interleaved and arranged.

In this embodiment, the number of consecutive sectors equal to the number of channels (16) is treated as one data block. For example, the first to sixteenth sectors are the first block 1
The 01st, 17th to 32nd sectors form the second block 102.

As can be seen by comparing FIGS. 1 and 10,
In the present embodiment shown in FIG. 1, since a plurality of audio data are consecutively accommodated in each channel of a single audio file, blank data is arranged for each file as shown in FIG. You don't have to align columns. Therefore, there is a high possibility that the amount of blank data will be smaller, and the audio data can be efficiently recorded on the recording medium.

In order to read the voice data thus recorded, in the present embodiment, in addition to the above-mentioned voice file, header information for reading desired voice data from the voice file is recorded on the recording medium.

FIG. 3 is a diagram showing an example of the data structure of the CD-ROM according to this embodiment. In this embodiment, the header information 200 and the audio file 100 are recorded on the CD-ROM. The header information 200 includes information specifying the position of the discrete sector of each audio data in the audio file 100. This information may have the form of a table in which information for identifying the position of audio data is stored in association with the identifier of audio data.

FIG. 4 shows an example of such a header information table. In this header information table 202, "channel number", "start block number" and "data length" are stored in association with the identification name of each audio data. The identification name of the audio data is, for example, code information unique to each audio data. "Channel number" is
Indicates the channel number to which the audio data is associated,
The "head block number" indicates the number of a block including the head sector of audio data (hereinafter referred to as "head block"), and the "data length" indicates the length of audio data in units of sectors. .

As described above, the audio data is divided into a plurality of sectors, and one data block contains one sector. Therefore, the number of the data length of the audio data indicates the number of data blocks in which the audio data is stored. For example, the audio data having the identification name sound # 1 is associated with channel 0, starts from the fourth block, and has a data length of 72 sectors. This is audio data in channel 0 (first sector) of 72 data blocks from the 4th block to the 75th block.
This means that sound # 1 will be stored. Similarly, the distinguished name s
The sound data having sound # 2 is from the 15th block to the 9th block.
Occupies channel 5 (sixth sector) up to 4 blocks.

The information stored in the header information table 202 is used when reproducing audio data. Specifically, first, a channel number C (C is an integer of 0 or more) corresponding to audio data to be reproduced, a head block number B (B is an integer of 0 or more), and a data length L (L is 0 or more). (Integer) is read from the header information table 202. Then, reading of data is started from the first sector of the block having the number B. This reading is a number (B + L
To the last sector of the block with -1). As a result, a number of data blocks equal to the data length L are read. If reproduction processing such as decoding is performed using only the data of the channel C among the data thus read, only the audio data of that channel can be reproduced.

The process of extracting the audio data of a desired channel from the read data is performed by, for example, a CD-ROM drive compatible with multi-channel ADPCM. The CD-ROM drive contains, for example, a CD-ROM decoder. When the channel to be reproduced is designated, the CD-ROM decoder extracts the audio data of the designated channel from the data read from the CD-ROM. Audio output processing is performed based on the audio data extracted by the CD-ROM decoder. In this way, audio data of a desired channel can be reproduced from the multi-channel ADPCM file.

Hereinafter, a game system for executing a computer game using a recording medium in which sound is recorded according to the sound data recording method according to the present embodiment will be described.

FIG. 5 is a schematic diagram showing the game system 50 according to this embodiment. The game system 50 is one computer. The game system 50 is, for example, a game control device 1 that controls the game system 50.
0, a keypad 30 which is an input device for inputting an instruction to the game control device 10, and a television (TV) set 34 which receives a video signal and a sound signal from the game control device 10 to display and output a sound. Is equipped with.
Further, the game system 50 includes a memory card 32 for storing game data such as game progress data and environment setting data. The game control device 10 may be, for example, a home-use game machine. The game control device 10 has a function as a display control device that controls screen display on the television set 34.

As shown in FIG. 5, the game control device 1
0 is, for example, a CPU (Central Processing Unit) 12, a ROM (Read Only Memory) 14, and a RAM (Random Access Memo).
ry: Random access memory 16, HDD (Hard Dis)
k Drive (hard disk drive) 18, sound processing section 20, graphic processing section 22, CD-ROM drive 24, peripheral device interface 26, and communication interface 28. These are connected to each other via a bus 40.

The CPU 12 controls the operation of the game control device 10 in accordance with the given program. ROM14
Includes a boot program and an OS of the game control device 10.
A basic program such as (Operating System) is stored. The RAM 16 is a main storage device used by the CPU 12 to execute a program, and stores a program executed by the CPU 12 and data necessary for the execution. The HDD 18 is an auxiliary storage device used by the CPU 12 to execute a program.

The sound processing section 20 performs processing for reproducing sound data such as BGM and sound effects according to an instruction from the CPU 12, and supplies a sound signal to the television set 34.

The graphic processing section 22 performs three-dimensional graphic processing according to an instruction from the CPU 12 to generate image data. The graphic processing unit 22 adds a predetermined synchronization signal to the generated image data to generate a video signal, and supplies this to the television set 34.

The CD-ROM drive 24 is a CD-RO.
When M is loaded, follow the instructions from the CPU and CD-R
The OM is driven to transfer the programs and data stored in the CD-ROM via the bus 40.

A keypad 30 and a memory card 32 are connected to the peripheral device interface 26. The peripheral device interface 26 controls data exchange between the keypad 30 and the memory card 32 and each component of the game control device 10, for example, the CPU 12 and the RAM 16.

The communication interface 28 is a communication line 42.
It is possible to connect to the external communication network 38 via this, and thereby the game control device 10 can be connected to the communication network 38. The communication interface 28 controls the exchange of information (programs and data) between the game control device 10 and the communication network 38.

The CD-ROM 36 stores game software 36a. The game software 36a includes a game program and necessary data for controlling the CPU 12 to perform the processing necessary for executing the computer game. Audio data having a data structure according to the present invention is also recorded in this data. The game program includes a program that causes the game system 50 to execute the method of reproducing the audio data. The game software 36a stored in the CD-ROM 36 can be read by operating the CD-ROM drive 24.

The game system 50 can also store the game software 18a in the HDD 18.
The game software 18a may be pre-installed in the HDD 18, may be installed from the CD-ROM 36, or may be downloaded from the communication network 38.

The television set 34 is one of the output devices of the game system 50, and the graphic processing unit 2
2 includes a display device that displays an image on the display screen 34a in response to a video signal from the speaker 2, and a speaker 34b that outputs sound in response to an audio signal from the sound processing unit 20.

The keypad 30 is an input device operated by the player. The player can input an instruction to the game control device 10 by operating the keypad 30. The keypad 30 sends various operation signals corresponding to the player's input to the game control device 10 via the peripheral device interface 26. The keypad 30 is provided with a plurality of input buttons such as a start button used for outputting a game start command and the like, and a direction key for inputting direction information. Furthermore, the keypad 30
Has a vibration (vibration) function. That is, the keypad 30 has a built-in motor, and when a predetermined control signal is received from the game control device 10, the motor operates to vibrate the keypad 30 as a whole.

The memory card 32 is an auxiliary storage device which is composed of a flash memory and is controlled by the game control device 10 to store game data.

The CPU 12 controls the game control device 1 based on the basic software stored in the ROM 14 and the game software read from the CD-ROM 36 by the CD-ROM drive 24 and stored in the RAM 16.
Controls 0 operation. For example, the CPU 12 is a CD-R
The graphic data is read from the OM 36, transferred to the graphic processing unit 22, and the graphic processing unit 22 is instructed to generate an image. In response to this instruction, the graphic processing unit 22 uses the graphic data to generate a video signal. This video signal is used in the television set 3
Sent to 4. As a result, the image is displayed on the display screen 34a of the television set 34.

FIG. 6 is an example of a game screen displayed on the television set 34. This shows a scene of a baseball game, in which a pitcher 6 is placed on a background representing a baseball field.
1, fielders 62 to 64 and batter 60 are displayed. Further, on this game screen, a rectangular frame 67 showing a strike zone is displayed.

Further, the CPU 12 operates the CD-ROM drive 24 to read the audio data from the CD-ROM 36, transfer the data to the sound processing section 20,
The sound processor 20 is instructed to reproduce the audio data. In response to this instruction, the sound processing unit 20 executes the reproduction processing of the audio data and generates the audio signal. This audio signal is sent to the television set 34. As a result, sound is output from the speaker 34b of the television set 34.

The game executed by the game system 50 is a live baseball game in which various live voices are played during the game. The live voice data is recorded in the CD-ROM 36 according to the recording format described above. That is, the lead-in area of the CD-ROM 36 stores the header information table 202 as shown in FIG. 4, and the program area has a single multi-channel audio file as shown in FIG. 1 and FIG. It is stored. As a result, a large amount of live voice data is efficiently recorded in the CD-ROM 36.

In the following, a game progress process involving sound output in the game system 50 will be described. Figure 7
6 is a flowchart showing the flow of the entire game progress processing. When the power of the game control device 10 is turned on after the CD-ROM 36 is set in the CD-ROM drive 24, the CPU 12 performs a predetermined initialization process according to the program stored in the ROM 14 (step S1).
1). In the initialization process, the header information table 202 recorded in the CD-ROM 36 is read into the RAM 16. This header information table 202 will be
It resides in the RAM 16.

After that, the process for executing the game according to the game program recorded in the CD-ROM 36 is started. In the process of executing the game, first, the operation input of the keypad 30 by the player is detected (step S12). The game progresses in response to the detected operation input (step S13). In the game progress processing, the game image responding to the operation input is displayed on the television set 3
4 is displayed.

When the game progresses, it is determined whether or not there is audio data to be reproduced (step S14). The audio data to be reproduced is determined according to the scene in the game and the like. When the pitcher swings over in a baseball game, for example, the voice data "motion of the first ball" is set as the voice data to be reproduced. If it is determined that there is no audio data to be reproduced, the process proceeds to step S16. If there is voice data to be reproduced, a voice output request for the voice data is output (step S15).
The voice output request is processed by a voice reproduction process described later.

Next, it is determined whether or not the game is over (step S16). The case where it is determined that the game is finished is, for example, when the game end is designated by an operation input of the keypad 30 by the player, or when the scenario set during the game is completed.

If it is determined in step S16 that the game is over, the game process is over. If it is determined that the game has not ended, the process proceeds to the detection of the operation input in step S12. As a result, the processes of steps S12 to S15 are repeatedly executed until the game ends.

When the CPU 12 receives a sound data reproduction request from the game program, the CPU 12 starts a sound reproduction process. FIG. 8 is a flowchart showing the audio reproduction process 700. First, the CPU 12 acquires the audio data name designated by the audio data reproduction request from the game program (step S702). Next, the CPU 12
With reference to the header information table 202 in the RAM 16, the channel number C associated with the acquired audio data name,
The head block number B and the data length L are acquired (step S704).

After that, the CPU 12 starts reading the data from the head sector of the Bth block of the audio data file (step S706). Of the read data, only the audio data of channel number C is the sound processing unit 2
It is sequentially transferred to 0. Specifically, a CD-ROM decoder (not shown) built in the CD-ROM drive 24 extracts the audio data of the channel number C from the data read from the CD-ROM 36. The extracted audio data is transferred from the CD-ROM drive 24 to the sound processor 20. The sound processing unit 20 performs decoding using the transferred audio data and outputs the decoded audio signal (step S708).

In the game system 50, the reading of the voice data is continued while the voice signal is being output. Number (B + L-
1) It is determined whether reading of the block is completed (step S710). If the reading of a series of blocks has been completed, the processing ends. If the reading of a series of blocks has not been completed, the process of step S708 is repeated. As a result, the output of the audio signal is
It continues until the last sector of the (+ L-1) block is read, that is, until a series of L data blocks starting from the Bth block is read (step S71).
0). When the Bth block to the (B + L-1) th block are read and an audio signal is output using all channel C audio data included in the read data,
The voice reproduction process 700 ends. The television system 34 reproduces sound based on the sound signal output from the sound processing unit 20. In this way, the audio data requested by the game program is reproduced.

In the above embodiment, the CDROM-
Since it is premised that the XA audio data is read in data block units, the header information table 202 stores the start block number. However, if the system is capable of reading in sector units, the head block number may be changed and other information for specifying the head sector position of the audio data may be registered. As the information for specifying the sector position, for example, the sector number given to each sector in the audio file 100 can be used.

When the head sector position of the audio data is specified by the sector number, when reading the audio data, the reading of the audio data is started from the specified sector position.
Then, each sector of n (n is the number of channels) sectors is sequentially read by the number of sectors registered as the data length in the header information table 202.

In this way, it is possible to reduce the amount of blank data in the file storing the audio data and to output the audio with the desired audio data in the file. As a result, the storage capacity of the recording medium can be used efficiently.

Although the present invention has been specifically described based on its embodiments, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the spirit of the invention. For example, the steps involved in a method in accordance with the invention can be reordered without departing from the spirit or scope of the invention.

Although the present invention has been described in connection with the home-use game system in the above embodiment, the present invention can be applied to a general-purpose computer such as a personal computer or an arcade game machine.

Although the display device or the input device and the game control device are separated in the game system of the above embodiment, the present invention is applied to the game system in which the display device or the input device and the game control device are integrated. It is also possible.

In the above embodiment, a CD-readable recording medium for recording audio data is used.
ROM is used. However, the recording medium is CD-
It is not limited to ROM, but DVD (Digital Ve
Other computer-readable magnetic or optical recording media such as a rsatile disc) or a ROM card, or a semiconductor memory may be used.

In the above embodiment, the audio data is read from the storage medium and reproduced. However, the audio data and the header information are stored in the storage device (for example, the HDD 18) included in the game system 50, and the audio data is read from the storage device. It may be adapted to be played back.

[0066]

According to the present invention, since the voice data is stored in a single multi-channel voice file, and the data string including the plurality of voice data is associated with each channel,
The amount of blank data placed in the file can be reduced. Thereby, the audio data can be efficiently recorded in the recording medium, and the storage capacity of the recording medium can be efficiently used.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing a structure of an audio file according to an embodiment of the present invention.

FIG. 2 is a diagram showing a data array of an audio file 100 recorded on a CD-ROM according to an embodiment of the present invention.

FIG. 3 is a diagram showing a data structure of a CD-ROM according to the embodiment of the present invention.

FIG. 4 is a diagram showing an example of a header information table.

FIG. 5 is a schematic diagram showing a game system according to the present embodiment.

FIG. 6 is a diagram showing an example of a game screen.

FIG. 7 is a flowchart showing the processing of the entire game.

FIG. 8 is a flowchart showing an audio reproduction process.

FIG. 9 is a schematic diagram showing a CD-ROM in which multi-channel ADPCM audio data is recorded.

FIG. 10 is a schematic diagram showing a data structure of an ADPCM file.

FIG. 11 is a diagram showing an arrangement of ADPCM sectors in a CD-ROM.

[Explanation of symbols]

10 ... Game control device, 12 ... CPU, 14 ... ROM,
16 ... RAM, 18 ... Hard disk drive, 20 ...
Sound processing unit, 22 ... Graphic processing unit, 24 ... C
D-ROM drive, 26 ... Peripheral device interface,
28 ... communication interface, 30 ... keypad, 32 ...
Memory card, 34 ... Television system, 36 ... C
D-ROM, 38 ... communication network, 40 ... bus, 4
2 ... communication line, 50 ... game system.

Front page continued (58) Fields surveyed (Int.Cl. ⁷ , DB name) G11B 20/10 G11B 27/00 A63F 13/00 H04N 5/92

Claims (8)

(57) [Claims] 1. A computer-readable recording medium in which audio data of audio output during a video game is recorded, each of a plurality of data strings having an arrangement order determined ,
It consists of a plurality of audio data of various lengths, each pre
In the data string, the plurality of audio data are replaced by other data.
Are continuous without via, each said audio data is divided into a plurality of divided data, files and said divided data for each of the respective data strings in the order defined in each said data sequence is arranged in an interleaved a position specifying information for specifying a position of the divided data of each of said audio data within said file, said computer, the location of the <br/> voice data corresponding to the status of the video game, the position specifying information And a program for outputting a sound based on the audio data at the determined position, and a computer-readable recording medium. 2. A are read order is determined in each of the divided data of each of the audio data, the position specifying information,
The position of the divided data reading order of each of the voice data is the head, computer-readable recording medium according to claim 1, characterized in that it contains the data length of the audio data. 3. A computer-readable recording medium in which audio data reproduced in a video game is recorded, and a header information recording area in which information used by a computer to read desired audio data is recorded. And a single n-channel (n is an integer of 2 or more) audio file
A recorded audio file recording area, and various channels are provided in each channel of the n-channel audio file.
A data string containing multiple audio data of
In each of the data strings, the plurality of audio data are
The audio file recording area corresponds to each of the channels without any intervening data
The data string attached is divided into a plurality of divided data arranged in n sectors every these divided and data is interleaved sectors stored in the header information storage region, each of said audio data respect, computer-readable recording medium position specifying information for specifying a position of the divided data of the audio data is recorded. Wherein said audio file has a plurality of data blocks of n consecutive sectors are arranged in succession structure, wherein the position specifying information with respect to each of said audio data, 4. The recording according to claim 3, including block information indicating a data block including a head sector of the audio data, channel information indicating a channel to which the audio data is associated, and length of the audio data. Medium. 5. Before recorded on the recording medium according to claim 4.
A method for reproducing one among the serial audio data, and storing in the storage device wherein the block information for each of said audio data from the storage medium, reads the channel information and the data length, from the storage device, the block information of the audio data to be reproduced, retrieving channel information and the data length, and start reading from the data block indicating the retrieved block information, the number of data blocks corresponding to the retrieved data length Reading, and reproducing audio using the data of the channel indicated by the searched channel information in the read data. 6. A computer-readable recording medium in which a program for causing a computer to execute the method according to claim 5 is recorded. 7. A method for recording audio data reproduced in a video game on a computer-readable recording medium, wherein header information used by a computer to read desired audio data is recorded in a first recording area. And a voice recording step of recording a single n-channel (n is an integer of 2 or more) voice file in the second recording area, the voice file having various lengths. A data string including a plurality of audio data is associated with each channel, and in each of the data strings, the plurality of audio data are associated with other data.
The audio recording step is associated with each channel.
The divided data string is divided into a plurality of divided data and divided into n sectors.
Place the can, comprising the step of recording in interleaved sectors these divided data is stored, the header recording step, with respect to each of said audio data to identify the location of the divided data of the audio data A method including the step of recording location information. 8. A computer game system comprising a storage device in which audio data to be reproduced in a video game is stored, said storage device recording information used by a computer to read desired audio data. Header information recording area and a single n-channel (n is an integer of 2 or more) audio file
A recorded audio file recording area, and various channels are provided in each channel of the n-channel audio file.
A data string containing multiple audio data of
In each of the data strings, the plurality of audio data are
The audio file recording area corresponds to each of the channels without any intervening data
The attached data string is divided into multiple divided data
disposed n sectors every are sectors these divided data are stored interleaved, the header information recording area for each of said audio data to identify the location of the divided data of the audio data A computer game system in which location information is recorded.