JP2007147818A - Musical piece reproducing device, musical piece reproducing method, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reproduce a part of one musical piece at desired timing by adjusting the reproduction time of the one musical piece. <P>SOLUTION: A musical piece reproducing device which reproduces first musical piece data representing the part from the starting timing of the musical piece to specified loop timing and second musical piece data representing the part after the specified loop timing includes a ring buffer 52a in which the first musical piece data are partially stored in order from the beginning, an auxiliary buffer 52b in which at least the head part of the second musical piece data is stored, a first musical piece data loop reproduction unit 54 which performs loop reproduction of the first musical piece data according to the storage contents of the ring buffer 52a, an operation detection unit 60 which detects a specified operation by a user during the loop reproduction of the first musical piece data, a loop timing standby unit 56 which suspends arrival of the specified loop timing of the musical piece when the operation detection unit 60 detects the specified operation, and a second musical piece data reproduction unit 58 which starts the reproduction of the second musical piece data according to the storage contents of the auxiliary buffer 52b when the specified loop timing comes. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a music playback device, a music playback method, and a program.

  In various game programs, a game progresses according to an operation of a player (user), and music such as BGM is often changed accordingly. In such a game program, a plurality of music data is prepared in advance, and the playback music is switched as the game progresses.

Patent Document 1 below discloses a configuration for shortening the delay time when switching a playback music piece according to the occurrence of a game event, and a configuration for performing a fade-in process and a fade-out process at the time of switching. Patent Document 2 below discloses a configuration in which the playback music is switched to the next music at the break of the music being played in response to the occurrence of a game event.
Japanese Patent Laid-Open No. 2005-21597 Japanese Patent Application Laid-Open No. 11-231872

  However, in the above background art, it is assumed that playback of a completely different piece of music is started during the playback of a certain piece of music, and the playback time of one piece of music is adjusted and a part of it is played back at a desired timing. It was not supposed to be. For this reason, for example, it is difficult to produce an effect such that the climax part of the music is played as the game progresses.

  The present invention has been made in view of the above problems, and provides a music playback device, a music playback method, and a program that can adjust the playback time of a piece of music and play a part of it at a desired timing. is there.

  In order to solve the above-described problem, a music playback device according to the present invention includes a first music data indicating a portion from a music start timing to a predetermined loop timing, and a second music indicating a portion after the predetermined loop timing. A first buffer in which the first music data is partially stored in order from the beginning, and a second buffer in which at least the first portion of the second music data is stored. , First music data loop playback means for loop playback of the first music data according to the stored contents of the first buffer, and operation detection means for detecting a predetermined operation by the user during loop playback of the first music data. Loop timing for waiting for arrival of the predetermined loop timing of the music piece when the predetermined operation is detected by the operation detecting means And second music data playback means for starting playback of the second music data according to the stored contents of the second buffer when the predetermined loop timing has arrived. . This music reproducing device may be configured as a part of the game device.

  The music playback method according to the present invention plays back first music data indicating a part from a music start timing to a predetermined loop timing, and second music data indicating a part after the predetermined loop timing. In the music reproducing method, a step of partially storing the first music data in a first buffer in order from the head, a step of storing at least a head portion of the second music data in a second buffer, and the first buffer In accordance with the stored contents of the buffer, the step of loop-reproducing the first music data, the step of detecting a predetermined operation by the user during the loop reproduction of the first music data, and the loop music during the loop reproduction of the first music data When a predetermined operation is detected, waiting for the music to arrive at the predetermined loop timing; and If the ring has come, in accordance with the stored contents of said second buffer, characterized in that it comprises the steps of: initiating playback of the second song data.

  Furthermore, the program according to the present invention includes a first buffer in which first music data indicating a portion from a music start timing to a predetermined loop timing is partially stored in order from the top, and the predetermined loop of the music A second buffer for storing at least the first part of the second music data indicating a part after the timing; a first music data loop playback means for loop-playing the first music data according to the stored contents of the first buffer; Operation detecting means for detecting a predetermined operation by a user during loop reproduction of the first music data, and a loop for waiting for the arrival of the predetermined loop timing of the music when the predetermined operation is detected by the operation detecting means When the timing waiting means and the predetermined loop timing arrive, the contents stored in the second buffer What is a program for causing a computer to function as a second music data reproducing means to start playing the second song data. The computer is, for example, a home game machine, an arcade game machine, a portable game machine, a mobile phone, a portable information terminal, a personal computer, a server computer, or the like. This program may be stored in a computer-readable information storage medium such as a CD-ROM or DVD-ROM.

  According to the present invention, the portion from the start timing of the music to the loop timing is played back in a loop, and when a predetermined operation is performed during the loop playback, the playback is continued until the loop timing, and then the portion after the loop timing is continued. Since reproduction is started, it is possible to adjust the reproduction time of one piece of music and reproduce a part of it at a desired timing.

  The first buffer may be composed of two buffers having the same size. In addition, it is preferable that the size of the first music data is adjusted to an integral multiple of the size of the buffer constituting the first buffer.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a diagram showing a configuration of a game device according to an embodiment of the present invention. The game apparatus 10 shown in the figure is configured by attaching a DVD-ROM 25 and a memory card 28 as information storage media to a consumer game machine 11, and further connecting a monitor 18 and a speaker 22, for example. The monitor 18 is a home television receiver, and the speaker 22 is a built-in speaker. This game apparatus 10 operates as a music reproducing apparatus according to the embodiment of the present invention.

  The home game machine 11 includes a bus 12, a microprocessor 14, an image processing unit 16, an audio processing unit 20, a DVD-ROM playback unit 24, a main memory 26, an input / output processing unit 30, and a controller 32. It is a computer game system. Components other than the controller 32 are accommodated in a housing.

  The bus 12 is for exchanging addresses and data among the units of the consumer game machine 11. The microprocessor 14, the image processing unit 16, the main memory 26, and the input / output processing unit 30 are connected by the bus 12 so that mutual data communication is possible.

  The microprocessor 14 controls each part of the consumer game machine 11 based on an operating system stored in a ROM (not shown), a program read from the DVD-ROM 25, and data read from the memory card 28. The main memory 26 is configured to include, for example, a RAM, and a program read from the DVD-ROM 25 and data read from the memory card 28 are written as necessary. The main memory 26 is also used for work of the microprocessor 14.

  The image processing unit 16 includes a VRAM, and draws a screen image on the VRAM based on the image data sent from the microprocessor 14. Then, the content is converted into a video signal and output to the monitor 18 (game screen) at a predetermined timing.

  The input / output processing unit 30 is an interface for the microprocessor 14 to access the audio processing unit 20, the DVD-ROM playback unit 24, the memory card 28, and the controller 32. An audio processing unit 20, a DVD-ROM playback unit 24, a memory card 28 and a controller 32 are connected to the input / output processing unit 30.

  The sound processing unit 20 is configured to include a sound buffer, and reproduces various sound data such as game music, game sound effects, and messages read from the DVD-ROM 25 and stored in the sound buffer, from the speaker 22. Output. Specifically, the audio processing unit 20 can process a predetermined number of channels, mixes and reproduces sound data assigned to each channel, and outputs the sound data from the speaker 22. In addition, the audio processing unit 20 can read a part instructed by the microprocessor 14 from the music data stored in the DVD-ROM 25 and store it in the sound buffer.

  The DVD-ROM playback unit 24 reads a program recorded on the DVD-ROM 25 in accordance with an instruction from the microprocessor 14. Here, the DVD-ROM 25 is used to supply the program to the consumer game machine 11, but any other computer-readable information storage medium such as a CD-ROM or a ROM card may be used. Good. Further, the program may be supplied to the consumer game machine 11 from a remote place via a data communication network such as the Internet.

  The memory card 28 includes a nonvolatile memory (for example, EEPROM). The home-use game machine 11 includes a plurality of memory card slots for mounting the memory card 28, and the plurality of memory cards 28 can be mounted simultaneously. The memory card 28 is configured to be removable from the memory card slot, and is used for storing various game data such as saved data.

  The controller 32 is general-purpose operation input means for the player to input various game operations. The input / output processing unit 30 scans the state of each unit of the controller 32 at regular intervals (for example, every 1/60 seconds), and passes an operation signal representing the scan result to the microprocessor 14 via the bus 12. The microprocessor 14 determines the player's game operation based on the operation signal. The home game machine 11 is configured so that a plurality of controllers 32 can be connected, and the microprocessor 14 performs game control based on an operation signal input from each controller 32.

  In the following, the home game machine 11 having the hardware configuration described above is used to adjust the playback time of the music data, and when the player performs a predetermined operation, the playback of the chorus portion of the music data starts accordingly. The technology will be described.

  FIG. 2 shows a transition example of the game screen displayed on the monitor 18 of the game apparatus 10. FIG. 5A shows a game screen displayed at the ending of the game, in which a sentence indicating the end of the game story is displayed. In addition, during the display of the same screen, the prelude portion of the ending music is repeatedly played (loop playback) from the speaker 22. On the game screen, pressing of a predetermined button of the controller 32 is guided. When the button on the controller 32 is pressed, the display of the monitor 18 is switched to the game screen of FIG. At this time, the loop playback of the ending prelude portion is completed, and the playback of the portion (including the chorus portion) following the prelude portion is started. Since the game apparatus 10 is configured as described above, it is possible to prevent the inconvenience that a rust portion flows from the speaker 22 during the display of the game screen of FIG. In addition, it is possible to prevent the inconvenience that music does not flow from the speaker 22 during the display of the game screen of FIG.

  FIG. 3 is a diagram showing a music playback procedure during display of the game screens of FIGS. 2 (a) and 2 (b). As shown in the figure, the start timing 40s to the end timing 40e of the music for ending the game are divided into two by a loop timing 40r therebetween. A portion from the start timing 40s to the loop timing 40r is recorded in the first music data, and a portion from the loop timing 40r to the end timing 40e is recorded in the second music data.

  During the display of the game screen of FIG. 2A, the first music data is repeatedly reproduced as shown in FIG. That is, when the part from the start timing 40s of the first music data to the loop timing 40r is reproduced, the part from the start timing 40s to the loop timing 40r of the first music data is reproduced again, and this is repeated. When the predetermined button of the controller 32 is pressed (predetermined operation) during the loop reproduction of the first music data, the reproduction of the first music data is continued until the loop timing 40r, and then the second music data is reproduced. The first music data and the second music data indicate the prelude part and the subsequent part of one music, and the end part of the first music data and the start part of the second music data are smoothly connected. It has become. For this reason, even if a predetermined operation is performed during the display of the game screen of FIG. 2A and a transition is made from the reproduction of the first music data to the reproduction of the second music data, a discontinuous sound is reproduced. Does not occur. FIG. 4 shows the composition of such music data. The music data includes data indicating the loop timing 40r as header data, and further includes first music data and second music data in the subsequent portion.

  FIG. 5 is a functional block diagram of the game apparatus 10 that operates as described above. As shown in the figure, the game apparatus 10 functionally includes a music data storage unit 50, a sound buffer 52, a first music data loop playback unit 54, a loop timing standby unit 56, a second music data playback unit 58, and an operation. A detection unit 60 is included. These functions are realized by executing a game program stored in the DVD-ROM 25 by the microprocessor 14.

  The music data storage unit 50 is configured around the DVD-ROM 25 and the DVD-ROM playback unit 24, and includes first music data indicating a portion from the start timing of the ending music to a predetermined loop timing, and the predetermined music data. Music data including second music data indicating a portion after the loop timing and header data indicating the loop timing is stored.

  The sound buffer 52 is configured with a sound buffer built in the sound processing unit 20 as a center, and includes three buffers (buffers A to C) having the same size (for example, 16k). The buffer A and the buffer B constitute a ring buffer 52a (first buffer), and the buffer C constitutes an auxiliary buffer 52b (second buffer). Here, the size of the first music data is made an integral multiple of the sizes of the buffer A and the buffer B, for example, by adjusting the sampling rate. Thereby, the reproduction of the first music data using the ring buffer 52a and the reproduction of the head portion of the second music data using the auxiliary buffer 52b can be smoothly connected.

  The first music data loop playback unit 54 is configured with the microprocessor 14 and the sound processing unit 20 as the center. When the game ending arrives, the music for ending stored in the music data storage unit 50 is stored. While reading the loop timing, which is the header data, the first music data is partially read from the beginning (by the size of the buffers A and B) and stored alternately in the buffers A and B. The first music data is reproduced and the musical sound is output from the speaker 22. When the reproduction from the start timing 40s to the loop timing 40r is completed and the loop timing indicated by the header data arrives, the first music data is partially read again from the beginning again, and the musical sound is output from the speaker 22 again. . In this way, the musical sound indicated by the first music data is repeatedly reproduced. In addition, when the game ending has arrived, the first music data loop playback unit 54 starts playback of the first music data and reads out the head portion (the size of the buffer C) of the second music data. Is stored in the buffer C (auxiliary buffer 52b).

  The operation detection unit 60 is configured with the microprocessor 14 as the center, and when the first music data loop playback unit 54 starts loop playback of the first music data, a predetermined button of the controller 32 is pressed. Whether or not to monitor. When the predetermined button is pressed, the loop timing standby unit 56 is notified of this. The loop timing standby unit 56 monitors the current playback timing (the part currently being played back) of the first music data by the first music data loop playback unit 54, and the current playback timing matches the loop timing 40r of the first music data. Then (that is, when the loop timing 40r comes), the first music data loop playback unit 54 stops the loop playback of the first music data and the second music data playback unit 58 starts to play the second music data. .

  The second music data playback unit 58 is configured with the microprocessor 14 and the sound processing unit 20 as the center, and when the playback of the second music data is instructed from the loop timing standby unit 56, the buffer C (auxiliary buffer) 52b) is reproduced at the head portion of the second music data and output from the speaker 22, and the data of the music for ending stored in the music data storage unit 50 is added to the head portion of the second music data. Subsequent portions are read partially in order (by the size of buffers A and B), and stored alternately in buffer A and buffer B. Then, when the reproduction of the data stored in the buffer C is completed, the reproduction of the data stored in the buffer A and the buffer B is started immediately. While reading, the second music data is reproduced and the musical sound is output from the speaker 22. Thus, using the buffers A to C, the second music data is reproduced immediately after the first music data.

  FIG. 6 is a flowchart showing music reproduction processing by the game apparatus 10. This process is executed when the game ending arrives and the game program determines the start of playing the ending music. As shown in the figure, in this process, first, the first music data loop reproduction unit 54 reads the head portion of the second music data stored in the music data storage unit 50 and stores it in the auxiliary buffer 52b (S100). ). Subsequently, the first music data loop reproduction unit 54 starts loop reproduction of the first music data stored in the music data storage unit 50 (S101). In the loop reproduction of the first music data, the first music data is partially read in order from the head (start timing 40s) and stored alternately in the ring buffer 52a. Then, the first music data is reproduced based on the contents stored in the ring buffer 52a. When the loop timing 40r of the first music data arrives, the first music data is reproduced again from the beginning.

  While the first music data is being loop-reproduced in this way, the operation detection unit 60 monitors whether a predetermined button of the controller 32 has been pressed (S102). If the predetermined button is pressed, the loop timing standby unit 56 then monitors whether or not the loop timing 40r of the first music data has arrived (S103). When the loop timing 40r arrives, the first music data loop playback unit 54 finishes loop playback of the first music data (S104), and the second music data playback unit 58 stores the second music data stored in the auxiliary buffer 52b. Is reproduced (S105). Thereafter, the second music data playback unit 58 plays back the subsequent portion using the ring buffer 52a (S106).

  According to the game apparatus 10 (music reproducing apparatus) described above, a first piece that divides one piece of music into a first part and a second part and shows the first part until a predetermined button of the controller 32 is pressed. When the music data is loop-played and pressed, the second music data indicating the second part is subsequently played back. Even if the second part contains the chorus part of the music, the predetermined button is It can be prevented from being played before being pressed.

It is a figure which shows the hardware constitutions of the game device (music reproduction | regeneration apparatus) which concerns on embodiment of this invention. It is a figure which shows the example of a transition of a game screen. It is a figure which shows the reproduction | regeneration procedure of music data. It is a figure which shows the structure of music data. It is a functional block diagram of the game device concerning the embodiment of the present invention. It is a flowchart which shows the music reproduction process in the game device which concerns on embodiment of this invention.

Explanation of symbols

  10 game machines, 11 consumer game machines, 12 buses, 14 microprocessors, 16 image processing units, 18 monitors, 20 audio processing units, 22 speakers, 24 DVD-ROM playback units, 25 DVD-ROMs, 26 main memories, 28 Memory card 30 Input / output processing unit 32 Controller 50 Music data storage unit 52 Sound buffer 52a Ring buffer (first buffer) 52b Auxiliary buffer (second buffer) 54 First music data loop playback unit 56 Loop timing standby unit, 58 Second music data playback unit, 60 Operation detection unit.

Claims (5)

In a music playback device for playing back first music data indicating a part from the start timing of music to a predetermined loop timing and second music data indicating a part after the predetermined loop timing,
A first buffer in which the first music data is partially stored in order from the beginning;
A second buffer for storing at least a head portion of the second music data;
First music data loop playback means for loop playback of the first music data according to the stored contents of the first buffer;
Operation detecting means for detecting a predetermined operation by a user during loop reproduction of the first music data;
Loop timing waiting means for waiting for the arrival of the predetermined loop timing of the music when the predetermined operation is detected by the operation detecting means;
Second music data playback means for starting playback of the second music data in accordance with the stored contents of the second buffer when the predetermined loop timing has arrived;
A music playback device comprising: The music player according to claim 1,
The first buffer is composed of two buffers of the same size.
A music reproducing apparatus characterized by the above. The music playback device according to claim 2,
The size of the first music data is adjusted to an integral multiple of the size of the buffer constituting the first buffer.
A music reproducing apparatus characterized by the above. In a music playback method for playing back first music data indicating a part from the start timing of music to a predetermined loop timing and second music data indicating a part after the predetermined loop timing,
Storing the first music data in the first buffer partially in order from the beginning;
Storing at least a top portion of the second music data in a second buffer;
Replaying the first music data in a loop according to the stored contents of the first buffer;
Detecting a predetermined operation by a user during loop reproduction of the first music data;
Waiting for the arrival of the predetermined loop timing of the music when the predetermined operation is detected during loop playback of the first music data;
Starting the reproduction of the second music data according to the content stored in the second buffer when the predetermined loop timing has arrived;
A method of reproducing music, comprising: A first buffer in which first music data indicating a part from a music start timing to a predetermined loop timing is partially stored in order from the head;
A second buffer for storing at least a head portion of second music data indicating a portion of the music after the predetermined loop timing;
First music data loop playback means for loop playback of the first music data according to the stored contents of the first buffer;
Operation detecting means for detecting a predetermined operation by a user during loop reproduction of the first music data;
When the predetermined operation is detected by the operation detection unit, a loop timing standby unit that waits for the arrival of the predetermined loop timing of the music, and the second buffer when the predetermined loop timing has arrived A program for causing a computer to function as second music data playback means for starting playback of the second music data according to the stored contents.

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