JPH08160958A - Sound source device - Google Patents

Abstract

PURPOSE: To provide a sound source device which can alter waveform data in use without reducing the usable area on a main storage device. CONSTITUTION: When a VAG attribute, a pitch, etc., are indicated and a request for sound generation is made, a CPU reads set values adsr1 and adsr2 of the envelope corresponding to the selected VAG attribute out of a main memory and supplies them to an envelope generator 115, and also indicates the read of the waveform data corresponding to the selected VAG attribute to a sound buffer 72. A pitch conversion part 111 converts the pitch of the read waveform data and the envelope generator 115 adjusts the level of the output of the pitch conversion part 111 with the set values adsr1 and adsr2 of the envelope and outputs the level.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound source device for generating a sound based on an instructed scale, volume, etc., and particularly, in a video game device or an information processing device, etc. The present invention relates to a sound source device used for controlling a sound source device to generate sound effects, background music (BGM) and the like.

[0002]

2. Description of the Related Art Conventionally, in an information processing device such as a video game device or a personal computer, a musical tone, a sound effect or the like is generated according to the progress of the game or the operation of the user.

In such a video game device or a personal computer, for example, a so-called FM sound source for generating a sound with a pitch by changing the frequency of a waveform obtained by combining a fundamental wave and its harmonics, or a fundamental wave The so-called PCM sound source which stores the waveform data of No. 1 and generates the pitch by changing the read cycle of the waveform data according to the designated pitch or the like is used as a sound source device for generating the sound.

For example, in reproducing BGM or the like, musical score data in which musical information such as pitch, pronunciation, muffling, tone color effect and the like is arranged in time order together with time information is prepared in advance and interpreted in real time. However, this is done by sequentially setting the pitch, sound generation and muffling registers of the sound source device.

As described above, preparing the data such as BGM in the form of musical score data is easier in reproducing than in the case of controlling the pitch, sound generation and mute of the sound source device sequentially by executing the program. A multimedia computer in which the tone color, volume, pitch, etc. can be changed, and the real-time property that responds quickly to the user's operation is important,
This method is suitable for games.

Further, in the control of the tone generator based on such musical score data, for example, as shown in FIG. 21, in a video game apparatus having only one CPU 201 as an arithmetic processing unit (CPU), this CPU 201 is time-divided. The BGM is used for reading the musical score data at regular time intervals, and controlling the sounding timing, sounding period, sounding pitch, volume, etc. of the sound source device 202 based on the read musical score data.
And so on.

As described above, the method of interpreting musical score data by using the CPU 201 in time division does not require a special peripheral device or the like, so that the cost is low and a program can be created if the processing capability of the CPU 201 is sufficiently high. Cheap.

By the way, in such a video game device, when the above-mentioned PCM sound source is used as the sound source device 202, the waveform of the fundamental wave used for each game to be executed or for each BGM to be reproduced. It is desired to change the data etc.

In such a case, it is conceivable to set the waveform memory large, store all the waveform data used by a plurality of BGMs, and change the waveform data according to the BGM to be reproduced or the like.

Alternatively, the waveform data is stored in the memory 204.
The waveform data is read from the optical disk device 205 or the like according to the BGM or the like stored and reproduced on the memory 204.
It is possible to rewrite the waveform data stored in.

[0011]

However, in the case of storing the waveform data in the memory 204 in this way,
Since it is necessary to secure a storage area in the memory 204 for storing the waveform data, there is a problem that the area for storing the game program and the like decreases.

The present invention has been made in view of the above problems, and provides a sound source device capable of changing the waveform data to be used without reducing the usable area of the main storage device. With the goal.

[0013]

A sound source device according to the present invention comprises an amplitude memory, a holding unit, a main storage device provided with a channel for transferring waveform data to a waveform buffer, and amplitude data, After the waveform data and the auxiliary storage device in which the identification information is stored, the amplitude data and the waveform data from the auxiliary storage device are controlled to be read, and the amplitude data is read to the amplitude memory, and the waveform data is read to the channel, And a transfer control unit that transfers the waveform data from the channel to the waveform buffer and supplies identification information to the holding unit.

The sound source device according to the present invention has a main storage device and an auxiliary storage device, and a channel for transferring the waveform data to the amplitude memory, the holding unit, and the waveform buffer on the main storage device. Are provided to control the reading of the amplitude data and the waveform data, read the amplitude data from the auxiliary storage device to the amplitude memory, read the waveform data from the auxiliary storage device to the channel, and then transfer the waveform data from the channel to the waveform buffer. It is characterized by comprising a transfer control unit for transferring, reading the amplitude data into the amplitude memory, and supplying the holding unit with the identification information.

Further, in the sound source device according to the present invention, the capacity of the channel is smaller than the amount of waveform data, and the transfer control unit is
It is characterized in that the waveform data stored in the auxiliary storage device is divided into less than or equal to the capacity of the channel, the divided waveform data is read to the channel, and then sequentially transferred to the waveform buffer.

[0016]

In the sound source device according to the present invention, the waveform data is stored in the waveform buffer, the amplitude data is stored in the amplitude memory, and the holding unit holds the identification information for identifying the waveform data corresponding to the amplitude data. There is.

When a sound request is issued to this tone generator,
Amplitude data and pitch information are specified, and the read control unit controls reading of waveform data corresponding to the specified amplitude data with reference to the identification information. The pitch converter is
The read control unit reads the waveform data whose reading is controlled, performs pitch conversion based on the specified pitch information, and the amplitude adjustment unit determines the amplitude of the waveform data pitch-converted by the pitch conversion unit to the specified amplitude data. Adjust based on.

As a result, a voice corresponding to the designated amplitude data and pitch information is generated.

Further, this sound source device has a main memory device and an auxiliary memory device, and the main memory device has an amplitude memory, a holding unit, and a channel for transferring the waveform data to the waveform buffer. And are provided.

The transfer control unit reads the amplitude data from the auxiliary storage device to the amplitude memory and the waveform data from the auxiliary storage device to the channel before the voice is generated,
Transfer from channel to waveform buffer. Further, the transfer control unit supplies the holding unit with the identification information for identifying the waveform data corresponding to the amplitude data. Other programs and the like can be stored in this channel when the reading of the waveform data is completed.

When the amplitude data and the waveform data are set again, the channel is formed again, and the amplitude data and the waveform data are read and transferred in the same manner.
Holds identification information.

Specifically, the capacity of the channel is smaller than the amount of the waveform data, and the transfer control unit divides the waveform data stored in the auxiliary storage device into the capacity of the channel or less and divides the divided waveform data into channels. After reading
Transfer to the waveform buffer sequentially.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the sound source device according to the present invention is applied as a sound source for generating a musical sound, a sound effect, etc. in a video game device will be described below.

This video game device plays a game in accordance with an instruction from the user by reading and executing a game program stored in an auxiliary storage device such as an optical disk. It has a structure as shown in FIG.

That is, the video game device includes a control system 50 including a central processing unit (CPU) and peripheral devices thereof, a graphic system 60 including a graphic processing unit (GPU) for drawing in a frame buffer, and the like. From a sound system 70 including a sound processing unit (SPU) that generates musical sounds and sound effects, an optical disk control unit 80 that controls an optical disk that is an auxiliary storage device, and a controller that inputs an instruction from a user. Communication control section 90 for controlling input / output from the auxiliary memory for storing the instruction input and game settings, and the control system 50 to communication control section 9
The bus 100 and the like to which 0 is connected are provided.

The control system 50 includes a CPU 51, a peripheral device control section 52 for controlling interrupts, direct memory access (DMA) transfer, etc., a main storage device (main memory) 53 including a RAM, and a main memory 53. ,
A ROM 54 in which programs such as a so-called operating system for managing the graphic system 60, the sound system 70, etc. are stored.

The CPU 51 controls the entire apparatus by executing the operating system stored in the ROM 54.

The graphic system 60 includes a geomitry transfer engine (GTE) 61 for performing processing such as coordinate conversion, an image processing unit (GPU) 62 for performing drawing according to a drawing instruction from the CPU 51, and the GPU.
A frame buffer 63 for storing an image drawn by 62 and an image decoder 64 for decoding image data compressed and encoded by orthogonal transform such as discrete cosine transform are provided.

The GTE 61 has, for example, a parallel operation mechanism for executing a plurality of operations in parallel, and responds to an operation request from the CPU 51. Coordinate conversion, light source calculation, matrix or vector calculation can be performed at high speed.

More specifically, the GTE 61 can perform coordinate calculation of up to about 1.5 million polygons per second in the case of performing flat shading in which the same color is drawn on one triangular polygon. This makes it possible for this video game device to
The load on the CPU 51 is reduced, and high-speed coordinate calculation can be performed.

The GPU 62 draws a polygon or the like on the frame memory 62 in accordance with a drawing command from the CPU 51. The GPU 62 is capable of drawing a maximum of about 360,000 polygons per second.

The frame buffer 63 is composed of a so-called dual port RAM, and is capable of simultaneously performing drawing from the GPU 62 or transfer from the main memory and reading for display.

The frame buffer 63 has a capacity of 1 Mbytes, and each has 16 bits in width of 1024 and length of 5 bits.
It is treated as a matrix of 12 pixels.

An arbitrary area of the frame buffer 63 can be output as a video output.

In addition to the display area output as video output, the frame buffer 63 also has a GPU 62.
A CLUT area that stores a color lookup table (CLUT) that is referred to when a polygon or the like is drawn, and a material that is coordinate-converted at the time of drawing and is inserted (mapped) into the polygon or the like that is drawn by the GPU 62 ( A texture area for storing textures is provided. These CLUT area and texture area are dynamically changed according to the change of the display area and the like.

In addition to the above flat shading, the GPU 62 pastes the Gouraud shading that complements the color of the vertex of the polygon to determine the color inside the polygon and the texture stored in the texture area to the polygon. Texture mapping can be performed.

When the Gouraud shading or texture mapping is performed, the GTE61 is used.
Can perform coordinate calculation of up to about 500,000 polygons per second.

Under the control of the CPU 51, the image decoder 64 decodes the image data of a still image or a moving image stored in the main memory 53 and stores it in the main memory 53.

The reproduced image data is GP
By storing it in the frame buffer 63 via U62, it can be used as the background of the image drawn by the GPU 62.

The sound system 70 has a CPU 51.
An audio processing unit (SPU) 71 for generating a musical sound, a sound effect, etc. based on an instruction from the SPU 71; a sound buffer 72 for recording waveform data etc. by the SPU 71;
And a speaker 73 that outputs a musical sound, a sound effect, and the like generated by the device 71.

The SPU 71 uses 16-bit audio data as a 4-bit differential signal by adaptive differential encoding (Adapti).
ve defferential pulse code modification: ADPC
M) ADPCM decoding function of reproducing the sound data, a reproducing function of generating a sound effect by reproducing the waveform data stored in the sound buffer 72, and a waveform data stored in the sound buffer 72. It has a modulation function for modulating and reproducing.

By providing such a function, the sound system 70 can be used as a so-called PCM sound source that generates a musical sound, a sound effect, etc. based on the waveform data recorded in the sound buffer 72 according to an instruction from the CPU 51. You can do it.

The optical disk control unit 80 reproduces the program, data, etc. recorded on the optical disk, and decodes the program, data, etc. recorded by, for example, error correction (ECC) coding. And a buffer 83 for temporarily reading the reproduced data from the optical disk device 81 to speed up reading from the optical disk.

As the audio data recorded on the optical disk reproduced by the optical disk device 81, there is so-called PCM data obtained by analog-to-digital conversion of an audio signal in addition to the ADPCM data described above.

As the ADPCM data, for example, audio data recorded by representing the difference of 16-bit digital data (PCM data) by 4 bits is recorded by the decoder 82.
After being decoded by, it is expanded into 16-bit digital data and supplied to the above-mentioned SPU 71.

Audio data recorded as, for example, 16-bit digital data as PCM data is decoded by the decoder 82 and then supplied to the SPU 71, or used for directly driving the speaker 73. It

Further, the communication control section 90 controls the communication with the CPU 51 via the bus 100.
And a controller 92 for inputting instructions from the user,
A memory card 93 for storing game settings and the like is provided.

The controller 92 has, for example, 16 instruction keys for inputting an instruction from the user, and according to an instruction from the communication controller 91, the state of this instruction key is communicated by synchronous communication. It is transmitted to the controller 91 about 60 times per second. Then, the communication controller 91 sends the state of the instruction key of the controller 92 to the CPU 51.

As a result, the instruction from the user is sent to the CPU 5
1 is input to the CPU 51, and the CPU 51 performs processing according to an instruction from the user based on the game program or the like being executed.

When it is necessary to store the settings of the game being executed, the CPU 51 sends the stored data to the communication controller 91, and the communication controller 91 sends the data to the CPU.
The data from 51 is stored in the memory card 93.

This memory card 93 has a communication controller 91.
Since it is connected to the bus 100 via and is separated from the bus 100, it can be attached and detached with the power turned on. As a result, game settings and the like can be stored in the plurality of memory cards 93.

In addition, this video game device has a bus 10
A parallel input / output (I / O) 101 and a serial input / output (I / O) 102 connected to 0 are provided.

The parallel I / O 101 can be connected to peripheral devices, and the serial I / O 102 can be used to communicate with other video game devices. It is like this.

By the way, the main memory 53, the GPU
62, the image decoder 64, the decoder 82, etc.,
It is necessary to transfer a large amount of image data at high speed when reading a program, displaying an image, drawing, or the like.

Therefore, in this video game device, as described above, the data is directly transferred between the main memory 53, the GPU 62, the image decoder 64, the decoder 82, etc. by the control of the peripheral device control section 52 without passing through the CPU 51. The so-called DMA transfer can be performed.

This allows the CPU 51 to transfer data.
It is possible to reduce the load of and to perform high-speed data transfer.

In this video game device, when the power is turned on, the CPU 51 executes the operating system stored in the ROM 54.

By executing this operating system, the CPU 51 controls the graphic system 60, the sound system 70 and the like.

When the operating system is executed, the CPU 51 initializes the entire device such as operation confirmation, and then controls the optical disc control section 80 to execute a game or the like recorded on the optical disc. Run the program.

By executing the program such as this game,
The CPU 51 controls the graphic system 60, the sound system 70, and the like according to the input from the user to control the display of images, the generation of sound effects, the generation of musical sounds, and the like.

By the way, this video game device generates a sound source such as a sound effect and a sound source for controlling the sound source in order to generate a musical sound, a sound effect or the like in accordance with the progress of the game or a user operation. It has a control unit.

This sound source is the CPU 51 and the SPU 7 described above.
1 and the sound source control unit is the CPU
It is realized by 51.

Specifically, as shown in FIG. 2, the SPU 71 reads the waveform data recorded in the sound buffer 72 in response to an instruction from the CPU 51, and performs pitch conversion for converting the pitch of the read waveform data. Part 11
1 and a clock generator 112 that generates a clock
A noise generator 113 that generates noise based on the output of the clock generator 112; a switch 114 that switches the outputs of the pitch conversion unit 111 and the noise generator 113; and an output level that is adjusted by adjusting the output level of the switch 114. An envelope generator 115 that changes the amplitude of the waveform and converts the envelope of the generated sound, a mute processing unit 116 that switches whether or not to generate sound, and a left and right channel that adjusts the volume and the balance of the left and right channels. Volume 117L, 117R
It has.

The sound buffer 72 stores some waveform data for one cycle which constitutes a sound to be generated in advance. This waveform data is the above-mentioned 4-bit ADPC.
It is stored as M data, and when read out, SPU7
After being converted to 16-bit PCM data by 1,
It is supplied to the pitch conversion unit 111.

Therefore, as compared with the case where the PCM data is stored as it is, the area in the sound buffer 72 required for storing the waveform data can be reduced and more waveform data can be stored.

Further, in the main memory 53, the envelope of the sound corresponding to one cycle of waveform data stored in advance in the sound buffer 72, that is, the rising of the sound,
Information such as the fall is recorded.

In FIG. 2, one voice (one voice) is used.
However, this sound source has a total of 24 voices including the pitch conversion units 111 to 117L and 11L.
7R, each voice volume 117L, 1
The 17R outputs are combined and output as audio outputs for the left and right two channels.

That is, this sound source is capable of simultaneously producing sound for 24 voices.

For each voice, the waveform data stored in the sound buffer 72, the envelope, the volume,
The balance of the left and right channels can be set independently.

As a result, this sound source can generate chords or perform with a plurality of musical instruments using a plurality of voices.

Further, this sound source is capable of performing a so-called reverb process for synthesizing the audio output with the audio output whose time is changed.

That is, the SPU 71 temporally switches the switches 118L and 118R for selecting whether or not to perform reverb processing on the voice output in which the voices of 24 voices are synthesized, and the voice output supplied from the switch 118L. A reverb processing unit 119 for moving back and forth, a volume 120 for adjusting the volume of the audio output moved forward and backward in time, an addition unit 121b for synthesizing the output of the volume 120 with the audio output before moving forward and backward, A master volume 122 for adjusting the volume of the output of the adder 121 is provided.

Further, in this sound source, it is possible to synthesize the audio output generated as described above with the audio signal read from the optical disk supplied from the decoder 82.

Specifically, the SPU 71 adjusts the volume of the audio signal to be combined with the switch 123 for selecting whether or not to combine the audio signal from the optical disc with the above-mentioned audio output, and controls the addition unit 121a. It is provided with a mixing volume 124 to be supplied and a switch 125 for selecting whether or not to perform reverb processing on an audio signal to be synthesized.

Although the reverb processing unit 119, the volume 120, the mixing volume 124, and the like are shown only in the left channel in FIG. 2 described above, they have the same configuration in the right channel.

The operation of this sound source will now be described.

When it is necessary to generate a sound, the CPU 51 outputs the selection signal for selecting the waveform data to be generated from the waveform data stored in the sound buffer 72 and the pitch of the generated sound to the pitch conversion unit 111. And the envelope corresponding to the waveform data generated from the envelope stored in the main memory 53, and is supplied to the envelope generator 115.

The pitch converting section 111 reads the waveform data by changing the waveform data reading step in accordance with the designated pitch. Further, the pitch conversion unit 111 is
When the reading of the waveform data for one cycle is completed, the same waveform data is repeatedly read from the beginning during the period in which the sounding instruction is supplied.

As a result, the waveform data corresponding to the instructed pitch is reproduced while the tone generation instruction is supplied. Such waveform data is supplied to the envelope generator 115 via the switch 114.

The envelope generator 115 uses the CP
The amplitude of the waveform data from the pitch converter 111 is converted based on the envelope supplied from U51.

As a result, a voice for one voice is generated. Similarly, the sound of the remaining 23 voices is generated, the volume and the balance of the left and right channels are adjusted by the respective volumes 117L and 117R, and the reverb processing and the like are performed as described above, and then synthesized. It

Thus, a voice is generated according to the instruction from the CPU 51.

The waveform data, envelope data, etc. for forming the voice of each voice are collected as a bank by collecting several waveform data, envelope data settings (programs) as an optical disk, etc. It is recorded in. Then, reading from the optical disk or the like is managed in units of this bank.

This bank is, for example, as shown in FIG.
It is composed of an attribute information part (bank header) VH and a waveform information part VB, the waveform information part VB is composed of a set of compressed waveform data (wave), and the bank header VH is a compressed waveform data (VAG). Attribute information (a
tribute).

The above attribute information does not have to correspond to one waveform data in a one-to-one correspondence, but a plurality of attribute information can correspond to one waveform data. Therefore, as shown in FIG. 3 described above, the number of pieces of attribute information is larger.

Specifically, the bank header VH is, for example, as shown in FIG. 4, a VAB header, a program header, a tone attribute table (VAG attribute table).
And a VAG offset table.

In the VAB header, the file is bank VAB
VAB identifier for identifying that each bank VAB is identified, and a file I for identifying each bank VAB
D, the file size indicating the size of the files forming the bank VAB, the number of programs indicating the number of the above programs included in the bank VAB, the number of tones indicating the number of all VAG attribute sets included in the bank, and the bank The number of VAGs indicating the number of included VAGs and the master volume (mvo) indicating the setting level of the master volume 122.
1) and a master pan level (pan) indicating the setting of the master pan level.

The program header is composed of a plurality of the above programs, and the tone attribute table is composed of a plurality of tone attributes.

A plurality of tone attributes (VAG attributes) are assigned to one program, for example, for each musical range.

The above program includes a tone (tone) indicating the number of VAG attributes included in the program, a master volume (vol) of the program, a priority (prior) of the program, and a sound source mode (mode).
Program master pan level (pan), program attribute (attribute), address (add)
It consists of res1 and 2).

The VAG attributes are the priority (prior) of the VAG attribute, the volume (vol), the panpot (pan), the center note (crsc) which is the pitch at the center of the sound, and the pitch correction. For fine tuning, the minimum and maximum values of pronunciation (min, max), the width of vibrato and 1
Period time (vibW, vibT), width and duration of portamento (porW, porT), and minimum and maximum values of pitch bend for changing pitch (pbmi)
n, pbmax) and the set value of the envelope (adsr
1, 2), display of a program including the VAG attribute (program), and identification information (vag) of waveform data (VAG) used by the VAG attribute.

Setting values of the envelopes adsr1, 2
Is, for example, as shown in FIG. 5, rising (attack) and decreasing (decay) of the envelope of the generated sound.
Sustain (sustain), fall (releases
e) is shown.

Setting values of this envelope adsr1, 2
By the envelope generator 115 described above,
It is used to adjust the output level of the pitch converter 111.

Specifically, as shown in FIG. 6, the envelope generator 115 for each voice has adsr registers 115a and 115b for holding the envelope setting values adsr1 and 2, and an adsr register 115.
a, the setting value a of the envelope held in 115b
an adsr controller 115c that generates an amplitude level of the output of the pitch conversion unit 111 based on dsr1 and 2;
Multiplier 1 for obtaining the product of the level generated by the adsr controller 115c and the output of the pitch conversion unit 111
It consists of 15d etc.

When the sound is produced, the above CPU is used.
51 reads the envelope setting values adsr1 and 2 corresponding to the selected VAG attribute from the main memory 53, and the adsr registers 115a and 115 of the respective voices.
In addition to supplying to b, the sound buffer 72 is instructed to read out the waveform data corresponding to the selected VAG attribute.

The waveform data read from the sound buffer 72 is pitch-changed by the pitch converter 111 as described above, and then the multiplier 115d is passed through the switch 114.
Is supplied to.

On the other hand, the adsr controller 15c is
Based on the envelope setting values adsr1 and 2 held in the dsr registers 115a and 115b, for example, an envelope value as shown in FIG. 5 is generated,
It is supplied to the multiplier 115d.

Then, the multiplier 115 includes the pitch conversion unit 1
The product of the output of 11 and the value of the envelope is calculated and output. As a result, a voice waveform in which the output of the envelope 111 is amplitude-modulated by the value of the envelope is generated. Such a voice waveform is generated for each voice, and each voice is sounded.

Further, the VAG offset table is
Vago indicating the position of each VAG in the waveform information section VB
It consists of ffset. This vagoffset represents the position of the VAG designated by the above-mentioned VAG identification information vag as an offset from the beginning of the waveform information section VB.
Is read out and supplied to the SPU 71. Then, the SPU 71 reads the VAG from the address specified by the vagoffset of the sound buffer 72 when performing sound generation.

Here, the data of the above-mentioned bank VAB is
Prior to use, it is read from an optical disc or the like and stored in the main memory 53 or the sound buffer 72.

The bank header VH is read from an optical disk or the like and stored in the main memory 53, and the waveform information section VB is read from the optical disk or the like and stored in the main memory 53 and then stored in the sound buffer 72. It is transferred and stored. DMA for reading or transferring these
It is done by transfer.

Specifically, in the main memory 53, as shown in FIG. 7, for example, a bank header storage area 53 _{VH in} which the bank header VH is stored, and a channel area 53c for transferring the waveform information section VB. Is provided. This channel region 53c is smaller than the size of the waveform information portion VB shown by the wavy line in FIG.

Therefore, the waveform information portion VB is divided into a size equal to or smaller than the channel area 53c, sequentially stored in the channel area 53c, and then transferred to the sound buffer 72.

As a result, the channel area 53c of the main memory 53 required to transfer the waveform data can be reduced, and the memory area for storing the game program and the like can be set large.

When the waveform information section VB is read out and transferred to the channel area 53c, other game programs and the like can be stored, so that the main memory 5 can be stored.
3 can be effectively used.

Here, if there is a pronunciation request as described above,
The CPU 51 reads the information in the attribute information section from the main memory in response to the sounding request, selects the VAG of each voice, the pitch conversion section 111, and the envelope generator 1.
15, volume 117L, 117R, etc. are set. As a result, the waveform data stored in the sound buffer is read and the voice of each voice is generated as described above.

In this sound source, the attribute information and the waveform data are stored in the main memory 53 and the sound buffer 72 independently of each other, and the attribute information stored in the main memory 53 is referred to in response to the sounding request, and the sound is reproduced. Since the waveform data stored in the buffer 72 is read to generate sound, the attribute information and the waveform information are read by reading the attribute information and the waveform data from the optical disk and storing them in the main memory 53 and the sound buffer 72. Can be changed.

As a result, it is possible to change the sound generated corresponding to the BGM or the like to be reproduced.

The tone generator control unit for controlling the tone generator as described above is realized by the CPU 51 executing the tone generator control program.

In this video game device, sound information to be generated, waveform data used for background music (BGM), etc., music information such as the pitch of the sound to be generated, pronunciation, muting, and tone effect are arranged in time order together with time information. The musical score data is stored in the main memory 53 in advance, and the sound source control section sequentially reads out these musical score data at regular time intervals,
The sound effect, BGM and the like are reproduced by sequentially setting the pitch, sound generation and muffling register of the sound source.

Specifically, the musical score data is a single musical score data for each musical score data of a unit (sequence) to be played, or a musical score data of a plurality of sequences is one file. It consists of concatenated musical score data.

As shown in FIG. 8, for example, the single musical score data is composed of one file header information and one sequence of musical score data, and one sequence of musical score data represents an attribute of the musical score data. It consists of one data header information and one sequence data.

The file header information is made up of a sound ID indicating that the file is sound data and a version number indicating the version or the like.

The data header information includes the time resolution of the sequence information of the musical score data, the resolution of the quarter note indicating the tempo and time signature, the tempo of the music, and the time signature.

The sequence data is composed of musical tone data which constitutes musical tones in one sequence.

Also, the above-mentioned connected musical score data is, for example, as shown in FIG.
As shown in (1), it is composed of one file header information and musical score data of a plurality of sequences, and the musical score data of each sequence respectively represents the attribute of the musical score data, like the above-mentioned single musical score data. It consists of one data header information and one sequence data.

In the case of the linked musical score data, the data header information indicates a musical score data ID for identifying individual musical score data in the linked musical score data, and time resolution, tempo and time signature of sequence information of the musical score data. It consists of quarter note resolution, song tempo, and time signature.

Further, the music data of the single musical score data and the linked musical score data is, for example, as shown in FIG. 10, a key-on for instructing sounding of a voice, a key-off for instructing mute of a voice, and a voice of a voice. It is composed of data such as pitch attribute change for changing pitch. These data are interpreted by the CPU 51 and, as described above, the CPU
The sound source is controlled by 51.

The above-described single musical score data and continuous musical score data are composed of musical score data formed for each sequence as shown in FIG. 11, for example.

That is, for example, the above-mentioned file header information is added to the musical score data A and B, respectively, to form a single musical score data. Further, P-1, P-2, and P-3 are added and combined as the music score data IDs to the music score data C, D, and E, respectively, and the file header information is further added to form the linked music score data P. . At this time, the musical score data IDs are in the order of connection in the linked musical score data P.

The single musical score data and the continuous musical score data thus formed are recorded on an optical disc or the like,
It is read to the main memory 53 prior to reproduction.

The single musical score data and the combined musical score data are reproduced by the sound source control section realized by the sound source control program executed by the CPU 51.

The sound source drive section has a structure shown in FIG. 12, for example, and reproduces the single musical score data and the combined musical score data to control the sound source.

That is, the tone generator control section reproduces the musical score data to be reproduced from the controller 104 including the controller 92 or the like and the single musical score data or the continuous musical score data held in the musical score data holding section 53a of the main memory 53. A music score data selection unit 105 to be selected, a music score data acquisition unit 106 that acquires the music score data selected by the music score data selection unit 105, and a pronunciation / silence information control unit 107 that controls a sound source including the sound system 70 and the like. I have it.

The music score data selection section 105 further includes
Music score data selection information management unit 10 that manages selection information of music score data selected according to input from the input device 104.
5a, a musical score data selection information holding unit 105b that holds the state of musical score data, and a musical score data selection information holding unit 10
And a musical score data selection information control unit 105c for analyzing the state of musical score data held in 5b.

Here, the single musical score data A, B and the linked musical score data P have file header information deleted, as shown in FIG. 13, for example, and are independently held in the musical score data holding section 53a. .

To these single musical score data A and B, musical score IDs 4 and 5 for identifying each are assigned,
The address is managed according to the musical score ID.

Further, the musical score data C, D, and E of the linked musical score data P are assigned musical score IDs 1, 2, and 3 for identifying them, and their addresses are managed according to the musical score IDs. There is.

Specifically, as shown in FIG. 14A, for example, as a reference table, a main memory 53 is provided with a musical score data ID, an address where the musical score data is stored, a pointer, etc. for these musical score IDs. Remembered

In this reference table, for example, the addresses ADDR1 and A at which the musical score data A and B are stored in association with the musical score IDs 4 and 5 for the single musical score data A and B, respectively.
DDR2 and pointers pt4 and pt5 are held.

In this reference table, for example, the musical score IDs of the musical score data C, D, E of the linked musical score data P
Musical score data IDs P-1, P-2, P-3 of musical score data C, D, E and pointers pt1, pt2, pt3 are stored in association with Nos. 1, 2, 3 respectively.

A code P constituting these musical score data IDs
In the main memory 53, for example, as shown in FIG.
, The concatenated code data P corresponding to this code P
The start address SADDR1 in which is recorded is stored as a start address reference table.

Further, P-1 which is the musical score data ID,
For P-2 and P-3, the start address (offset address) for the start address SADDR1 of the linked musical score data P is stored in the main memory 53 as an offset reference table, as shown in FIG. 14C, for example. ing.

Specifically, P-1 which is the musical score data ID
The offset address corresponding to 0 is 0 because the corresponding musical score data C is the first musical score data of the linked musical score data.
The offset address corresponding to the musical score data ID P-2 becomes the start address OADDR1 for the start address SADDR1 of the corresponding musical score data D, and the offset address corresponding to the musical score data ID P-3 corresponds to the corresponding musical score. The start address OADDR2 corresponds to the start address SADDR1 of the data E.

That is, the musical score data forming the linked musical score data is read by simply designating the musical score ID by referring to the reference table, the start address reference table and the offset reference table.

As a result, the reading of the musical score data forming the linked musical score data can be performed only by designating the musical score ID as shown in FIG. 15, as compared with the case of reading by designating the actual address. It becomes easy to specify the address.

By the way, in this sound source control section, the 24 voices of the above-mentioned sound source are assigned to the reproduction processing of each musical score data, whereby the reproduction processing of a plurality of musical score data can be performed.

The progress of the reproduction processing of the plurality of musical score data is controlled in accordance with the pointer on the reference table corresponding to the musical score data reproduced in each processing.
That is, this pointer indicates the currently reproduced position of each musical score data, and indicates the beginning of the musical score data when the reproduction is not started.

Further, in the musical score data holding section 105b, for example, as shown in FIG. 16, the reproduced state of the musical score data corresponding to the musical score ID is held as a musical score data selection information attribute table.

The reproduction state of the musical score data is set by an input from the above-mentioned input device 104 or an instruction from another program due to the progress of the game or the like.

The reproduction status of the musical score data is, for example, Stop when the reproduction is not started, Play when the reproduction is in progress, and Pause when the reproduction is paused.

That is, in the musical score data selection information attribute table shown in FIG. 16, the musical score data having the musical score ID of 1 is being reproduced, and the musical score data having the musical score ID of 2 has not been started. The musical score data having the ID 3 is in a paused state, the musical score data having the musical score ID 4 is being reproduced, and the musical score data having the musical score ID 5 is not started.

Now, the operation of reproducing the musical score data by this reproducing apparatus will be described with reference to the flowchart shown in FIG.

First, when the reproduction of the musical score data is started,
In step S1, the musical score data selection information management unit 105a confirms in step S1 whether or not there is an input from the input device 104. If there is an input, the process proceeds to step S2, and if there is no input, the process proceeds to step S6. .

In step S2, the musical score data selection information control unit 105c determines that the input is the musical score ID specified by the input.
If it is not a reproduction request, the process proceeds to step S4. If it is a reproduction request, the process proceeds to step S3, which corresponds to the musical score ID instructed by the musical score data selection information holding unit 105b. The status of the musical score data is Pl
After setting to ay, the process proceeds to step S6.

In step S4, the musical score data selection information control unit 105c determines that the above-mentioned input is the designated musical score ID.
If it is not a stop request, the process proceeds to step S6. If it is a stop request, the process proceeds to step S5, which corresponds to the musical score ID designated by the musical score data selection information holding unit 105b. The status of the musical score data is St
After setting to op, the process proceeds to step S6.

In step S6, the musical score data selection information control unit 105c causes the musical score data selection information holding unit 105 to operate.
The state of the musical score data corresponding to each musical score ID held in b is analyzed, and in the following step S7, it is determined whether or not there is a musical score ID in the reproducing state, and the musical score in the reproducing state. If there is no ID, the process returns to step S1 and waits for input. In step S7, if there is a musical score ID in the reproducing state, the musical tone generation processing of each musical score data corresponding to the musical score ID in the reproducing state is started, and the process proceeds to step S8.

The processing from step S8 onward is performed for each musical score data in accordance with a timer interrupt generated at regular intervals by the peripheral device control section 52, but in the following description, only one musical score data will be described. explain.

That is, in this step S8, the musical score data acquiring unit 106 is in the reproducing state of the musical score I.
The musical score data holding unit 53a is instructed to read the musical score data corresponding to D.

Then, in the following step S9, the musical score data acquisition unit 106 determines whether or not the musical score data has ended. If the musical score data has ended, the sound generation processing ends, and the musical score data must end. Sequential step S1
Go to 0.

In step S10, the musical score data acquisition unit 106 determines whether the musical score data read in step S9 is data to be reproduced during the current interrupt period, and the musical score data is reproduced during the current interrupt period. If it is not the data to be reproduced, the tone generation processing is ended, and if it is the data to be reproduced during the current interruption period, the process proceeds to step S11.

In step S11, the sound generation / mute information control unit 107 determines whether or not the data reproduced during the current interrupt period is the key-on for instructing the sounding of a certain voice. If the key is ON, the process proceeds to step S12, and after instructing the sound source to pronounce the designated voice, the process proceeds to step S8.
Return to and wait for the next interrupt.

In step S13, the sound generation / mute information control unit 107 determines whether or not the data reproduced during the current interruption period is the key-off for instructing the mute of a certain voice. The process returns to S8 and waits for the next interrupt. If the key is off, the process proceeds to the following step S14 to instruct the sound source to mute the designated voice, and then returns to step S8 to wait for the next interrupt.

As a result, the musical score I whose reproduction is selected according to the musical score data selection information attribute table described above.
The musical score data corresponding to D is reproduced.

Further, in the tone generator control section, the music score data can be specified only by designating the music score ID by referring to the above-mentioned reference table and the management of the music score data becomes easy.

By changing the musical score data selection information attribute table, the musical score data reproduction state for each musical score ID can be set independently, so that the musical score data reproduction is instructed regardless of the other musical score data reproducing states. It is possible to improve the response time to, for example, an input from the user or a request from another program.

By the way, more specifically, the sound source control section shown in FIG. 12 has a configuration as shown in FIG. 18, for example. Note that FIG. 18 is an equivalent block diagram showing the processing performed by the CPU 51 by executing an operating system, a sound source control program, a game program, and the like.

This sound source control section is equivalent to the peripheral device control section 5 described above.
2 is controlled by the timer interrupt control unit 130 for generating a timer interrupt to the CPU 51 at predetermined time intervals and the timer interrupt from the peripheral device control unit 52, and the sound source is controlled based on the musical score data. And the timer interrupt control unit 1 by checking the load state of the entire sound control unit 140 and the video game device.
System load information control unit 150 to be supplied to 30, and an input request control unit 160 for checking the state of the controller 92.
Have and.

As the processing executed simultaneously with the processing of the sound control section 140 in the CPU 51 by executing the operating system and the game program, the drawing control section 170 for controlling the drawing by the graphic system 60 and the user. Input from
Select the generated sound effect, musical sound, etc., select the image to display,
There is a main routine unit 180 that performs processing such as control of game progress.

The timer interrupt control section 130 has a timer interrupt interval holding section 131 for holding an interval for generating a timer interrupt, a timer interrupt management section 132,
It comprises a sound switching unit 140 and a control switching management unit 133 that controls switching between the main routine unit 180.

The sound control section 140 has a musical score data holding section 141 that holds the above musical score data, a data acquisition management section 142 that manages the reading of the musical score data, and time information that controls the operation of the data acquisition management section 142. The management unit 143 and the pronunciation / silence information control unit 144 that controls the pronunciation / silence of the sound source based on the read musical score data.
And an internal resolution holding unit 145 that holds an internal resolution corresponding to the timer interrupt interval from the timer interrupt interval holding unit 131, the above-described sound source, and the like.

The sound source is composed of the above-mentioned SPU 71, sound buffer 72, etc., and the sound generation / silence information control unit 1
Under the control of 44, a sounding unit 147 that reads the waveform data stored in the waveform data holding unit 146 including the sound buffer 72 to generate a sound, an amplification unit 148 that amplifies the generated sound and adjusts the volume and the like. Consists of.
The sound generation unit 147 and the amplification unit 148 are SPs as described above.
It is realized as a function of U71.

The system load information control unit 150 is a system load information acquisition unit 15 for acquiring system load information.
1 and the system load determination unit 15 that determines the system load
2 and a system load threshold holding unit 153 that holds the system load threshold.

The input request control section 160 includes an input device 161 including the above-mentioned controller 92 and the like, and an input device 161.
The input request analysis unit 162 analyzes the input request from the.

The drawing control section 170 uses the CPU 5 described above.
1, GTE61, GPU62 and frame buffer 63
And the like, and a drawing information holding unit 171 including a GTE 61 or the like, a drawing information control unit 172 including a CPU 51 or the like, a drawing device 173 including a GPU 62 or the like, and a drawing information holding unit 174 including a frame buffer 63 or the like.
And a display device 175 for displaying an image based on the video output from the drawing device 173.

The operation of the sound source control section will be described below.

In this sound source control unit, the timer interrupt interval holding unit 131 holds the timer interrupt interval according to the system load or the input request in advance. Specifically, for example, the timer interrupt interval when the system load is light is 1/240 seconds, and the timer interrupt interval when the system load is heavy is 1/60 second which is longer than the timer interrupt interval when the system load is light. Is held.

In this sound source control section, when the processing is started, the main routine section 180 executed by the CPU 51 causes the drawing control section 1 according to the input from the input device 161.
The control of 70, the selection of musical tones generated by the sound control unit 140, and the processing of the system load information control unit 150 are executed in parallel.

At this time, the system load information acquisition unit 151
Acquires the load information of the CPU 51 and supplies it to the system load determination unit 152, and the system load determination unit 152 determines the system load by comparing it with the threshold value held in the system load threshold value holding unit 153. Then, the determination result is supplied to the timer interrupt interval holding unit 131.

The timer interrupt interval holding unit 131 selects the timer interrupt interval based on the system load judgment from the system load judgment unit 152 or the output of the input request analysis unit 162, and selects the timer interrupt management unit 132 and the internal resolution holding unit. 145.

Specifically, the timer interrupt interval holding unit 1
31 indicates the interrupt interval to be 2 when the system load is light, based on the judgment result from the system load judgment unit 152.
When the system load is heavy, the interrupt interval is set to 1/60 second.

The timer interrupt management unit 132 controls the peripheral device control unit 52 based on the timer interrupt interval supplied from the timer interrupt interval holding unit 131 to generate a timer interrupt at regular intervals, and the control switching management unit 1
33 switches the processing of the main routine section 180 and the sound control section 140 at regular intervals based on the timer interrupt, and starts the processing of the sound control section 140.

When the processing is started by the switching of the control switching management unit 133, the sound control unit 140
The time information management unit 143 controls the data acquisition management unit 142 in accordance with the internal resolution held in the internal resolution holding unit 145, that is, the timer interrupt interval, and controls the data from the musical score data held in the musical score data holding unit 141 to a timer. The reading of the interruption interval is instructed, and the read musical score data is supplied to the sound generation / silence information control unit 144.

The sound generation / mute information control unit 144 controls the sound generation unit 147 based on the musical score data supplied from the time information management unit 143. As a result, the sound generator 147
The sound is generated based on the waveform data stored in the waveform data storage unit 146.

Specifically, the sounding / silence information control unit 144
As described above, the CPU 51 controls the pitch conversion unit 111, the envelope generator 115, and the like to control the generation of voice by executing the above. The level of the sound thus generated is adjusted by the amplifier 148, and then the sound is output by the speaker 73.

As a result, the timer interrupt interval holding unit 13
The audio data based on the musical score data for the timer interrupt interval supplied from 1 is output.

The sound control unit 140 is activated at each timer interrupt interval set by the timer interrupt interval holding unit 131 as described above, whereby sounds based on the musical score data for the timer interrupt interval are sequentially generated. .

That is, when the timer interrupt interval is 1/240 second, the musical score data is reproduced every 1/240 second as shown in FIG. 19A, for example.

At this time, the actual processing time of the sound processing section 140 is shorter than 1/240 second.

For example, from time t11 to time t12, from time t12 to time t13, from time t12 to time t1.
Up to 4, from the time t14 to the time t15, two notes are reproduced. That is, two notes are reproduced in 1/60 seconds from time t11 to time t15.

Further, when the timer interrupt interval is 1/60 second, for example, as shown in FIG.
The musical score data is reproduced every one second. For example, time t2
Eight notes are reproduced in 1/60 second from 1 to time t22.

That is, the above timer interrupt interval is set to 2
As in the case of 1/40 second, 8 notes are reproduced in 1/60 second.

As a result, in this sound source processing device, even if the timer interruption interval is changed using the same musical score data, the reading of the musical score data is controlled in accordance with the changed timer interruption interval, so that a predetermined value is obtained. The musical score data is reproduced at the tempo of.

When the sound control unit 140 is activated by an interrupt as described above to perform processing, the actual CP
The processing load of U51 is, for example, as shown in FIG. 20A, when the timer interrupt interval is 1/240 second.
The processing of the sound control unit 140 accounts for 25% of the processing capacity of the CPU 51. Also, the timer interrupt interval is 60
When it is one second, for example, as shown in FIG. 20B, the processing of the sound control unit 140 occupies 12.5% of the processing capacity of the CPU 51.

That is, C for actually controlling the sound source
The load of the PU 51 does not change so much even if the timer interrupt interval becomes short, but when the timer interrupt interval becomes short,
When the timer interrupt frequently occurs, the processing overhead for the timer interrupt increases, and the processing load of the sound control unit 140 increases.

As described above, in this sound source control unit, the timer interrupt interval selected by the timer interrupt interval holding unit 131 has a relatively large processing load on the sound control unit 140 when the system load is light. When the system load is heavy, the processing load of the sound control unit 140 is set to 1/60 second.

As a result, in this sound source control device, the processing load of the sound control section 140 can be changed according to the system load without changing any musical score data. Therefore, when the system load is heavy, the processing load of the sound control unit 140 becomes small, and the processing such as drawing can be smoothly performed.

In the above embodiments, the sound source device of the present invention is applied to a sound source for generating a musical sound, a sound effect or the like in a video game device. However, the amplitude of the waveform data is adjusted based on the amplitude data. If it is configured to generate sound, it can be applied to an apparatus such as an automatic performance device, a personal computer, etc., and can be appropriately changed within a range not departing from the technical idea of the present invention. Of course, you can

[0189]

The sound source device according to the present invention stores the waveform data and the amplitude data in the waveform buffer and the amplitude memory,
Since the holding unit holds the identification information for identifying the waveform data corresponding to the amplitude data, it is possible to control the reading of the waveform data corresponding to the specified amplitude data with reference to the identification information, Sound can be generated even if amplitude data is stored independently.

Further, the sound source device according to the present invention reads the amplitude data from the auxiliary storage device to the amplitude memory before the sound is generated, reads the waveform data from the auxiliary storage device to the channel, and then transfers the waveform data from the channel to the waveform buffer. , And the identification information for identifying the waveform data corresponding to the amplitude data is held in the holding unit, the amplitude data and the waveform data can be rewritten. Can be assigned.

When the waveform data is read out and transferred to the channel, other programs can be stored, so that the usable area of the main storage device is not reduced.

Further, the sound source device according to the present invention divides the waveform data stored in the auxiliary storage device into the capacity of the channel or less, reads the divided waveform data into the channel, and then sequentially transfers the waveform data to the waveform buffer. Thus, it is possible to transfer the waveform data through the channel smaller than the amount of the waveform data, and reduce the reduction of the usable area of the main storage device due to the channel.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a video game device to which a sound source control device according to the present invention is applied.

FIG. 2 is a block diagram showing a specific configuration of an SPU constituting the above video game device.

FIG. 3 is a diagram showing a format of banks used in a sound source and a sound source control unit which constitute the above video game device.

FIG. 4 is a diagram showing a format of an attribute information section forming the bank.

FIG. 5 is a diagram for explaining a set value of an envelope which constitutes the attribute information section.

FIG. 6 is a block diagram showing a configuration of an envelope generator that constitutes the sound source control device.

FIG. 7 is a diagram showing a specific storage state of the attribute information section.

FIG. 8 is a diagram showing a format of musical score data for controlling a sound source constituting the video game device.

FIG. 9 is a diagram showing a format of musical score data for controlling a sound source constituting the video game device.

FIG. 10 is a diagram showing a format of music data forming the musical score data.

FIG. 11 is a diagram for explaining formation of the musical score data.

FIG. 12 is a diagram showing a configuration of a sound source control unit that controls the sound source based on the musical score data.

FIG. 13 is a diagram showing a state of musical score data held in a musical score data holding unit which constitutes the sound source control unit.

FIG. 14 is a diagram showing a structure of a reference table that is referred to when reading the musical score data.

FIG. 15 is a diagram for explaining an operation of reproducing musical score data by the sound source control unit.

FIG. 16 is a diagram for explaining management of musical score data by the sound source control unit.

FIG. 17 is a flowchart for explaining a musical score data reproducing operation by the sound source control unit.

FIG. 18 is a block diagram showing a detailed configuration of the sound source control unit.

FIG. 19 is a diagram for explaining a process performed by a timer interrupt by the sound control unit that constitutes the sound source control unit.

FIG. 20 is a diagram showing a ratio between the load of the sound control unit and the load of other processing.

FIG. 21 is a block diagram showing a configuration of a conventional video game device.

[Explanation of symbols]

50 Control system 51 CPU 52 Peripheral device control unit 53 Main memory 53a Music score data holding unit 53 _VH bank header storage area 53c Channel area 54 ROM 60 Graphic system 61 GTE 62 GPU 63 Frame buffer 64 Image decoder 65 Display device 70 Sound system 71 SPU 72 sound buffer 73 speaker 80 optical disc control unit 81 optical disc device 82 decoder 83 buffer 90 communication control unit 91 communication control unit 92 controller 100 bus 104 input device 105 musical score data selection unit 105a musical score data selection information management unit 105b musical score data selection information Holding unit 105c Music data selection information control unit 106 Music data acquisition unit 107 Sounding / silence information control unit 111 Pitch conversion unit 112 Clock generator 113 noise generator 114, 118L, 118R, 123, 125 switch 115 envelope generator 115a, b adsr register 115c adsr controller 115d multiplier 116 mute processing unit 117L, 117R, 120, 124 volume 119 reverb processing unit 121a, 121b addition Section 122 master volume 124 mixing volume 140 sound control section 141 musical score data storage section 142 data acquisition management section 143 time information management section 144 pronunciation / silence information control section 145 internal resolution storage section 145 150 system load information control section 151 system load information acquisition Part 152 System load judgment part 153 System load threshold value holding part 160 Input request control part 161 Input device 62 input request analysis 170 drawing control unit 171 controls the time of drawing information holder 172 drawing information controller 173 drawing apparatus 174 drawing information holder 175 display

Claims (3)

[Claims] 1. A waveform buffer for storing waveform data, an amplitude memory for storing amplitude data, a holding unit for holding identification information for identifying waveform data corresponding to the amplitude data, and reference to the identification information. A read control unit that controls reading of the waveform data corresponding to the specified amplitude data, and a pitch conversion unit that reads the waveform data whose reading is controlled by the read control unit and performs pitch conversion based on the specified pitch information. And an amplitude adjusting unit for adjusting the amplitude of the waveform data pitch-converted by the pitch converting unit based on the specified amplitude data. 2. A main memory provided with the amplitude memory, the holding unit, and a channel for transferring waveform data to the waveform buffer, the amplitude data, the waveform data, and the identification information. And the auxiliary storage device that stores the and the amplitude data and the waveform data from the auxiliary storage device are controlled, the amplitude data is read to the amplitude memory, the waveform data is read to the channel, and the waveform data is From the above to the above waveform buffer,
The sound source device according to claim 1, further comprising: a transfer control unit that supplies the identification information to the holding unit. 3. The capacity of the channel is smaller than the amount of the waveform data, the transfer control unit divides the waveform data stored in the auxiliary storage device into the capacity of the channel or less, and divides the divided waveform data into channels. 3. The sound source device according to claim 2, wherein the sound source device sequentially reads out the data to the waveform buffer and then sequentially transfers the waveform buffer.