JP4062202B2 - Musical sound generator and musical sound generation processing program - Google Patents

Description

  The present invention relates to a musical tone generator and a program for musical tone generation processing, and in particular, a musical tone generator that generates musical tone by synthesizing musical tone information, image information or other information recorded on an external recording medium and performance data, and The present invention relates to a musical sound generation processing program.

  Many musical tone generators equipped with a keyboard as a playing means like an electronic keyboard instrument have an automatic performance function. The user can perform the chord part and the rhythm part in synchronism while playing the melody part on the keyboard using automatic performance data stored in advance in an internal storage medium such as a song memory. In addition, audio data playback and automatic performance data using specially-designed dedicated CDs in which audio data consisting of sound effects such as applause, street hustle and wave sounds, and automatic performance data are recorded. There is a proposal of an automatic performance device that simultaneously performs automatic performance based on.

According to this proposal, in one frame which is a unit of digital data of a CD, automatic performance data consisting of a MIDI message is recorded in an area of user bits (6 bits) in a subcode of one symbol (8 bits), and 24 symbols. The sound data information and sound effect information of multiple parts are recorded in the audio data area. During playback of a CD, automatic performance data of sub-codes is read out to perform automatic performance, and part music or sound effects recorded in the audio area can be reproduced while synchronizing at a predetermined timing during automatic performance ( Patent Document 1).
JP-A-3-36598

However, in the conventional musical tone generator, it has been impossible to fulfill the user's request to play a musical performance simultaneously with the reproduction of general musical tone information of a commercially available CD. As a countermeasure, it is conceivable to record keyboard performance data and CD playback data in an internal storage medium such as a song memory and play back after recording. However, since the volume of the waveform data of the musical sound information recorded on the CD is too large and a large-capacity music memory is required to record it, it is realized with a musical sound generator such as a general-purpose electronic keyboard instrument. It is virtually impossible to do. Although there is a user's request to play not only musical sound information but also image information such as animation data recorded on a disk such as a DVD at the same time, the amount of waveform data of image information is enormous. Recording this and reproducing it in synchronization with the performance data is extremely difficult to achieve with a general-purpose musical sound generator.
The present invention relates to a tone generator and a tone generation process that enable a user's request to play a musical performance at the same time as reproduction of a general external recording medium in which musical tone information, image information, or other information is recorded. The purpose is to provide a program.

According to another aspect of the present invention, there is provided a musical sound generating apparatus comprising: first input means for inputting event data for instructing a sound source to generate musical sound; and information stored in a connected external storage medium. When the second input means for inputting external media information for searching, the recording mode setting means for setting the recording mode, the playback mode setting means for setting the playback mode, and the recording mode are set, A determination unit that determines whether or not event data is input to the first input unit, and an event recording that stores the event and its input timing in the storage unit when the determination unit determines that the event data has been input. And whether or not the connected external storage medium is started when it is determined by the determination means that the event data has not been input. Detecting means for detecting whether or not the start of reproduction is detected by the detecting means, and external media recording for storing the external media information inputted from the second input means and the reproduction start timing in the storage means And when the reproduction mode is set, the event data stored in the storage means is read out based on the corresponding input timing and sent to the sound source, and the stored external media information is correspondingly reproduced. And a reproducing unit that reads out based on the start timing and retrieves and reproduces information from the connected external storage medium based on the read-out external media information .

In this case, as described in claim 2, the recording mode setting means stores the external media information stored in the connected external recording medium in the storage means when the recording mode is set. The playback mode setting means determines whether the external media information stored in the connected external recording medium matches the external media information stored in the storage means when the playback mode is set. It may be configured that an error display is made when it is determined and they do not match .

According to a third aspect of the present invention, there is provided a program for generating musical sounds, the first input means for inputting event data for instructing the sound source to generate musical sounds, and the information stored in the connected external storage medium. A recording mode setting step for setting a recording mode in a computer applied to a musical sound generating apparatus, and a playback mode for setting the playback mode; A setting step; a step of determining whether or not event data has been input to the first input means when the recording mode is set; and a step of determining whether or not the event data has been input; An event recording step for storing the input timing in the storage means, and when it is determined that the event data is not input, A detection step for detecting whether or not playback of the connected external storage medium has started, and if the start of playback is detected, the external media information input from the second input means and the playback start timing are When the external media recording step to be stored in the storage means and the playback mode are set, the event data stored in the storage means is read out based on the corresponding input timing and sent to the sound source, and the storage A reproduction step of reading out the read external media information based on the corresponding playback start timing, searching for information from the connected external storage medium based on the read external media information, and playing back the information. It is the composition.

  The musical sound generating apparatus or musical sound generating processing program of the present invention records musical information, images by recording external media information for searching for the information together with performance data instead of the information recorded on the external recording medium. As a result, it is possible to obtain an effect of enabling a user to desire to perform at the same time as reproduction of a general external recording medium in which information or other information is recorded.

Hereinafter, the first to third embodiments of the musical sound generating apparatus according to the present invention will be described by taking an electronic keyboard instrument as an example.
FIG. 1 is a block diagram showing the configuration of the electronic keyboard instrument in the first embodiment. In FIG. 1, a CPU 1 is connected to a program ROM 3, a work RAM 4, a song memory 5, a display unit 6, a keyboard 7, a switch unit 8, a tone generator unit 9, and a CD playback device 10 via a system bus 2. The entire apparatus is controlled by exchanging commands and data between them. A sound system 11 is connected to the sound source unit 9 and the CD playback device 10. The sound system 11 includes a D / A conversion circuit that converts waveform data of musical sound output from the sound source unit 9 and waveform data of CD information output from the CD playback device 10 into an analog signal, and amplifies the musical sound waveform of the analog signal. And an amplifying circuit and a speaker (both not shown).

  The program ROM 3 stores a musical sound generation processing program executed by the CPU 1 and initial data when the program is started. The work RAM 4 is a work area for temporarily storing data processed by the CPU 1. For example, a registration area for recording information such as a tone color, an effect, and a rhythm in the registration process, and information stored in the registration area. There is a setting area to set when playing. In addition, various registers, flags, and the like are provided in the work RAM 4. The music memory 5 stores performance data obtained by operating the keyboard 7 and data obtained from the CD playback device 10 and the like. The stored data will be described later. The display unit 6 displays a message indicating the state of the apparatus and the operation procedure, and image data obtained from the CD playback apparatus 10, for example, musical score data, lyrics data, animation data, and the like.

  The keyboard 7 includes event data composed of pitch data corresponding to the key number of the key and velocity data corresponding to the strength of the key in response to a key pressing operation or a key releasing operation of an arbitrary key, and between events. Performance data consisting of time data indicating time is input to the CPU 1. Although not shown in the figure, the switch unit 8 is a timbre switch for setting the tone color of the musical tone generated from the sound system 11, a registration switch for setting a plurality of conditions for generating musical tone including the timbre, a recording switch, It consists of a playback switch, a mode switch, and the like. The sound source unit 9 incorporates a waveform memory or DSP (not shown) that stores waveform data corresponding to various timbres, and generates sound waveform data based on the sound generation command and performance data of the CPU 1 to generate a sound system. 11 is output.

  The CD playback device 10 is a general CD that is an external medium on which musical tone information is recorded, a CD on which musical tone information of MP3 (MPEG-1 Audio Layer 3) having a high data compression rate, or a file format is recorded. A CD-ROM on which information is recorded is reproduced. For this reason, a CD driver 101 including a turntable, a spindle motor, an optical pickup, a servo circuit, a signal processing circuit, and the like for driving a CD or CD-ROM is provided inside the CD reproducing apparatus 10. CD-ROM / MP3 decoder 102 for converting information recorded in the waveform data into data, external media information for retrieving information recorded on external media such as CDs and CD-ROMs, and the contents of the information (in the case of CDs) Includes a CD-DSP 103 that processes TOC (Table Of Contents) and a CD-I / F 104 that interfaces with the CPU 1.

FIG. 2 is a diagram showing a configuration of song data stored in the song memory 5 of FIG. As shown in FIG. 2 (1), the song data is composed of header data and performance data consisting of time and events. The header data has a different data structure depending on the set mode (which will be described later) and the information of the CD to be played back.
FIG. 2 (2) shows the contents of general CD header data, including main body setting information data including tone color settings and effect settings, external media information including synchronized playback CD track number and total CD performance time. It consists of
FIG. 2 (3) shows the contents of the header data of the CD on which the MP3 musical tone information is recorded. The data of the main body setting information consisting of tone color settings and effect settings is the same as that of FIG. The information is the MP3 file name in the synchronized playback CD.
In FIG. 2 (4), the header data is composed only of the data of the main body setting information including the timbre setting and the effect setting. However, the WAV file name in the CD is inserted in the performance data. This shows a state in which the WAV file name, which is the external media information of the CD, is recorded in the music memory 5 during the performance of the keyboard 7.

Next, the operation of the tone generation process in the first embodiment will be described based on the operation flowchart of the CPU 1 shown in FIGS.
FIG. 3 is a main flowchart. After predetermined initialization (step SA1), switch processing (step SA2) for detecting the operation of the switch unit 8, keyboard processing (step SA3) for detecting the operation of the keyboard 7, and keyboard 7 The recording process (step SA4) for recording performance data and the like by the above operation in the music memory 5, the reproduction process (step SA5) for reproducing the content recorded in the music memory 5, and other processes (step SA6) are repeatedly executed.

  FIG. 4 is a flowchart of the switch process in step SA2 in the main flowchart of FIG. In this flowchart, the operation state of each switch is detected. That is, registration switch processing (step SB1), recording switch processing (step SB2), playback switch processing (step SB3), mode switch processing (step SB4), and other switch processing (step SB5) are executed.

  FIG. 5 is a flowchart of the mode changeover switch process of step SB4 in the switch process of FIG. First, it is determined whether or not the mode switch has been operated (step SC1). If the switch is not operated, this flowchart is terminated. When this switch is operated, the contents recorded in the header of the music memory 5 are determined by the switch operation. That is, it is determined whether or not the setting for recording the main body setting information and the external media information is set (step SC2). If this setting is set, the mode flag MF is set to 0 (step SC3). It is determined whether or not the setting is for recording only the main unit setting information (step SC4). If this setting is set, MF is set to 1 (step SC5). It is determined whether or not the setting is to record only external media information (step SC6). If this setting is made, MF is set to 2 (step SC7). After the MF is set to any value, the process returns to the switch process of FIG.

  FIG. 6 is a flowchart of the registration switch process of step SB1 in the switch process of FIG. In this flowchart, the process branches depending on whether the operation is a recording operation or a reading operation. In the case of a recording operation, the contents of registration are registered in the registration area of the work RAM 4, and in the case of a reading operation, the contents of the registration area of the work RAM 4 are transferred to the setting area to generate sound conditions such as timbres, effects, and rhythms. Set.

  First, it is determined whether or not the recording operation is a musical sound generation (step SD1). That is, it is determined whether or not MF is 0 (step SD2). If MF is 0, the current main body setting state is stored in the registration area of work RAM 4 (step SD3). Next, it is determined whether or not there is an external medium (in this case, a CD or a CD-ROM) (step SD4). If there is an external medium, a track number or file name which is external media information is registered in the registration area. (Step SD5). If there is no external media, an error may be displayed on the display unit 6.

  If MF is not 0 in step SD2, it is determined whether or not MF is 1 (step SD6). When MF is 1, the main body setting state is stored in the registration area (step SD7). If the MF is not 1, the MF is set to 2, so it is determined whether there is an external medium (step SD8). If there is an external medium, the track number or file name as external media information is stored in the registration area (step SD9). When there is no external medium, there is no data to be read from the registration area of the work RAM 4 and stored in the setting area, so an error is displayed on the display unit 6 (step SD10), and the switch shown in FIG. Return to processing.

  After data is recorded in the work RAM 4, it is determined whether or not a read operation has been performed (step SD11). If a read operation has been performed, it is determined whether or not MF is 0 or 1 (step SD12). ). If the MF is 0 or 1, the main body is set based on the data recorded in the registration area (step SD13). Further, it is determined whether or not the track number or file name as external media information is registered (step SD). If registered, the external media information is stored in the setting area of the work RAM 4 (step SD). SD15). If MF is 2 in step SD12, the external media information is stored in the setting area of work RAM 4 (step SD15). After the external media information is stored in the setting area, or when the reading operation is not performed in step SD11, or when the external media information is not recorded in the registration area in step SD14, the process returns to the switch processing flowchart of FIG. .

  FIG. 7 is a flowchart of the recording switch process of step SB2 in the switch process of FIG. First, it is determined whether or not the recording switch has been operated (step SE1). If this switch has not been operated, this flowchart is terminated. When this switch is operated, it is determined whether or not MF is 0 (step SE2). If MF is 0, timbre and effect information are stored in the header of the song memory 5 (step SE3). ). Next, it is determined whether or not there is an external medium (step SE4). If there is an external medium, the track number or file name as external media information is stored in the header (step SE5). Next, playback of the external media is started (step SE6). In step SE4, when there is no external medium, an error may be displayed on the display unit 6.

  If MF is not 0 in step SE2, it is determined whether or not MF is 1 (step SE7). If MF is 1, the timbre and effect information are stored in the header (step SE8). If the MF is not 1, the MF is set to 2, so it is determined whether there is an external medium (step SE9). If there is an external medium, the track number or file name as external media information is stored in the header (step SE10). Next, playback of the external media is started (step SE6). If there is no external media in step SE9, there is no data to be recorded, so an error is displayed on the display unit 6 (step SE11), and the process returns to the switch process in FIG. Next, the recording flag RF is set to 1, and the reproduction flag PF is reset to 0 (step SE12). Then, the address pointer is moved to the beginning of the music data (step SE13), and the register t is cleared to 0 (step SE14). Next, the timer interrupt prohibition is canceled (step SE15). And it returns to the switch process of FIG.

  FIG. 8 is a flowchart of the regeneration switch process of step SB3 in the switch process of FIG. First, it is determined whether or not the regeneration switch has been operated (step SF1). If this switch has not been operated, this flowchart is terminated. When this switch is operated, the recording flag RF is reset to 0, and the reproduction flag PF is set to 1 (step SF2). Next, the tone color and effector in the header of the song memory are set (step SF3). Thereafter, the current external media information is read (step SF4), and it is determined whether or not the read information matches the header information (step SF5).

  If the read information matches the header information, the external media playback is started based on the external media information stored in the header (step SF6). On the other hand, if the read information and the header information are different, an error is displayed on the display unit 6 for a predetermined time (step SF7). After starting the reproduction of the external medium or displaying an error, the head address of the music data is designated (step SF8). Then, the time read based on the address is stored in the register T (step SF9), and the register t is cleared to 0 (step SF10). Then, the prohibition of the timer interrupt is canceled (step SF11), and the process returns to the switch process of FIG.

  FIG. 9 is a flowchart of the keyboard process in step SA3 in the main flowchart of FIG. The keyboard 7 is scanned (step SG1) to determine whether there is a key change (step SG2). If there is no key change, the process returns to the main flowchart, but when there is a key change from off to on, that is, when a key is pressed, the key number and velocity are detected (step SG3). On the other hand, when the key is changed from on to off, that is, when the key is released, the key number is detected (step SG4). After detecting the key number and velocity in step SG3 or detecting the key number in step SG4, an event corresponding to the key change is created (step SG5). Next, the elapsed time from the performance start to the key change is stored in the register T (step SG6). The created event is stored in the buffer (step SG7), and the event is sent to the sound source unit 9 (step SG8). Then, the process returns to the main flowchart of FIG.

  FIG. 10 is a flowchart of the recording process in step SA4 in the main flowchart of FIG. First, it is determined whether or not the recording flag RF is 1 (step SH1). If RF is 1, it is determined whether or not the minimum unit time of the timer interrupt has elapsed (step SH2). When RF is 0, or when the minimum unit time has not elapsed, this flowchart is ended. When the minimum unit time has elapsed, the value of t is incremented (step SH3).

  Next, it is determined whether or not there is an event in the buffer (step SH4). If there is an event, the value of t is stored in the area indicated by the address (step SH5). Next, the address is incremented (step SH6), and the event is stored in the area indicated by the address (step SH7). Then, the buffer is cleared (step SH8). In step SH4, if there is no event in the buffer, it is determined whether or not external media playback has started (step SH9). When external media playback has started, the value of t is displayed in the area indicated by the address. Is stored (step SH10). Next, the address is incremented (step SH11), and external media information is stored in the area indicated by the address (step SH12).

  After clearing the buffer in step SH8 or storing the external media information in step SH12, the address is incremented (step SH13). At this time, it is determined whether or not the stepped address exceeds the final address (step SH14). If the stepped address exceeds the final address, there is no recording area, so RF is reset to 0 and playback of the external media is stopped (step SH15). Then, the timer interrupt is prohibited (step SH16), and the process returns to the main flowchart of FIG. If the stepped address does not exceed the final address in step SH14, or if the reproduction of the external media is not started in step SH9, the process returns to the main flowchart in FIG.

  FIG. 11 is a flowchart of the reproduction process in step SA5 in the main flowchart of FIG. First, it is determined whether or not the reproduction flag PF is 1 (step SJ1). If PF is 1, it is determined whether or not the minimum unit time of the timer interrupt has elapsed (step SJ2). When the minimum unit time has elapsed, the value of t is incremented (step SJ3). Then, it is determined whether or not the time stored in t has reached the time stored in T (step SJ4). That is, it is determined whether or not the reproduction timing has been reached. If the time stored in t does not reach the time stored in T, or if RF is 0 in step SJ1, or if the minimum unit time has not elapsed in step SJ2, this flowchart Exit.

  When the time t reaches the time T in step SJ4, the address is incremented (step SJ5). At this time, it is determined whether or not the stepped address exceeds the final address (step SJ6). If the stepped address does not exceed the final address, data is read based on the address (step SJ7). Then, it is determined what the read data is (step SJ8). If the read data is time, it is stored in T (step SJ9). Then, the process returns to the main flowchart of FIG.

  If the read data is an event, the event is sent to the sound source unit 9 (step SJ10). If the read data is external media information, playback of the external media is started based on the stored information (step SJ11). After sending the event to the sound source unit 9 or starting the reproduction of the external media, the process proceeds to step SJ5, and the address is incremented to determine whether the incremented address exceeds the final address. (Step SJ6). If the stepped address does not exceed the final address, data reading is continued. On the other hand, when the stepped address exceeds the final address, the PF is reset to 0 (step SJ12), and the timer interrupt is prohibited (step SJ13). Then, the process returns to the main flowchart of FIG.

  As described above, according to the first embodiment, the CPU 1 stores the external media information recorded in the external media such as the CD and the CD-ROM in the header of the song memory 5, and The event, which is performance data stored in the song area, is read out and supplied to the sound source unit 9, and recorded on the external medium based on the waveform data of the musical sound generated by the sound source unit 9 and the external media information stored in the header. Synchronize with existing information. Therefore, it is possible to make a user's request to perform a performance at the same time as reproduction of a general external medium in which musical tone information is recorded.

  In this case, as shown in steps SF5 and SF6 in the playback switch process of FIG. 8, when the external media information read by the CD playback device 10 matches the external media information stored in the header, The reproduction of the external media is started based on the external media information stored in the header. Therefore, when the external media corresponding to the external media information stored in the header when recording the performance data is different from the external media attached to the CD playback device 10 during playback, the external media information stored in the header is used. Since external media is not played back, it is possible to prevent in advance that different external media are played back by mistake.

  In the first embodiment, whether the external media information read by the CD playback apparatus 10 matches the external media information stored in the header is as shown in FIG. In addition, the identity of the external media is determined based on whether the track number of the CD and the total performance time of the CD match, or as shown in FIG. 2 (3), whether the MP3 file names match. However, it is possible to determine the identity of the external media based on other information. For example, the total number of files, presence / absence of file names to be synthesized in synchronism or file size, header information in files such as MP3 Tag information, file folder names or folder numbers, creation date / time information, file format information, Alternatively, the identity of the external media can be determined by a combination of two or more of these.

  Next, a second embodiment will be described. In the first embodiment, a description will be given of a configuration in which musical tone information recorded on an external medium composed of a disc such as a CD or CD-ROM is reproduced based on the external medium information and synthesized in synchronism with performance data. However, in the second embodiment, the musical tone information recorded on the memory card incorporating the semiconductor memory such as the flash memory is synthesized in synchronism with the performance data. Since the storage capacity of the memory card is several megabytes to several hundred megabytes, it is possible to record musical tone information compressed like MP3, for example. That is, in the second embodiment, a memory card reading device having an interface connectable to the system bus 2 is provided instead of the CD playback device 10 of FIG.

  As described above, according to the second embodiment, the CPU 1 stores the external media information recorded in the external medium made of a semiconductor memory such as a memory card in the header of the song memory 5, and the song memory 5 Is an external medium based on the waveform data of the musical sound generated by the sound source unit 9 and the external media information stored in the header. The information recorded in the semiconductor memory is synthesized in synchronism. Therefore, as in the first embodiment, it is possible to make a user's request to perform a performance at the same time as reproduction of a general external medium in which musical tone information is recorded.

  Next, a third embodiment will be described. In the first and second embodiments, the external media mounted in the electronic keyboard instrument is reproduced and synthesized in synchronism with the performance data. However, the musical sound information recorded on the external media and the external media If media information can be input, it is not always necessary to mount external media in the electronic keyboard instrument. In the third embodiment, information recorded on external media and external media information are received from an external server connected via a network such as the Internet. That is, in the third embodiment, a communication interface capable of accessing the network is provided instead of the CD playback device 10 of FIG.

  As described above, according to the third embodiment, the CPU 1 downloads external media information recorded in an external server connected via a network, stores it in the header of the song memory 5, and stores the song memory. 5 is read out and supplied to the sound source unit 9, and based on the waveform data of the musical sound generated by the sound source unit 9 and the external media information stored in the header, the external data is stored. Synchronize and synthesize waveform data and files of musical sound information recorded on the server. Therefore, as in the first embodiment, it is possible to make a user's request to perform a performance at the same time as reproduction of a general external medium in which musical tone information is recorded.

  When obtaining external media information recorded in an external server, whether or not the external media information downloaded from the server matches the external media information stored in the header is determined based on the http address or http address. The identity of the external media can also be determined by matching the file names in the files.

  In the first to third embodiments, the music data of the external media to be synthesized in synchronism with the performance data input in accordance with the operation of the keyboard 7 includes music data of a standard MIDI file and music data for lessons. But you can.

  In the first to third embodiments, the configuration has been described in which the performance data input in response to the operation of the keyboard 7 and the musical tone information recorded on the external medium are synthesized in synchronism. It is also possible to synthesize the event data other than the above and the musical tone information recorded on the external medium in synchronization. For example, music data such as standard MIDI files (SMF), music data for lessons, setting data in DSP such as tone and rhythm, compressed sound data such as MP3, WAV, WMA, AIF, or automatic performance lesson sequence settings It is also possible to synthesize data and musical tone information recorded on an external medium in synchronization.

  In the first to third embodiments, the case where the musical sound information recorded on the external medium and the performance data are combined in synchronism is described. However, the information to be combined with the performance data in synchronism is described. It is not limited to music information. For example, image data captured by a video camera, animation data, musical score data, lyrics data, or text data may be used.

  In the first embodiment, the invention of an apparatus in which the CPU 1 executes a musical sound generation processing program stored in advance in the program ROM 3 in the electronic keyboard instrument has been described. A configuration is also possible in which the CPU 1 executes the musical sound generation processing program installed in the writable memory from the semiconductor memory described in the second embodiment. Alternatively, as described in the third embodiment, by providing a communication interface that can access a network such as the Internet, a program for music generation processing is installed in a writable memory that is downloaded from an external server, A configuration executed by the CPU 1 is also possible. In this case, the invention of the program can be realized.

  That is, the musical sound generation processing program includes a first step of inputting event data for generating musical waveform data, an external for searching for information recorded on the external recording medium and the content of the information. A second step of inputting media information; a third step of storing event data obtained by the first step and external media information obtained by the second step in a predetermined storage means; and storage in the storage means Waveform data of musical sound generated by a predetermined sound source by reading the event data and information recorded on the external recording medium obtained from the second input means based on the external media information stored in the storage means And a fourth step of synthesizing in synchronism.

  In this case, the fourth step is generated by the sound source when the external media information stored in the storage means matches the external media information recorded on the current external recording medium obtained by the second step. The musical tone waveform data and the information recorded on the external recording medium are synthesized in synchronism. In the first step, performance data output from predetermined performance means in response to an operation is input as event data.

FIG. 2 is a block diagram showing the configuration of the electronic keyboard instrument in the first embodiment. The figure which shows the data structure memorize | stored in the music memory of FIG. The main flowchart of CPU of FIG. The flowchart of the switch process in FIG. The flowchart of the mode switch process in FIG. The flowchart of the registration switch process in FIG. The flowchart of the recording switch process in FIG. FIG. 5 is a flowchart of regeneration switch processing in FIG. 4. FIG. The flowchart of the keyboard process in FIG. The flowchart of the recording process in FIG. The flowchart of the reproduction | regeneration processing in FIG.

Explanation of symbols

1 CPU
2 System bus 3 Program ROM
4 Work RAM
5 song memory 6 display unit 7 keyboard 8 switch unit 9 sound source unit 10 CD playback device 11 sound system 101 CD driver 102 CD-ROM / MP3 decoder 103 CD-DSP
104 CD-I / F

Claims (3)

First input means for inputting event data for instructing the sound source to generate music;
A second input means for inputting external media information for searching the contents of information stored in the connected external storage medium;
Recording mode setting means for setting the recording mode;
Playback mode setting means for setting the playback mode;
A discriminating means for discriminating whether or not event data is inputted to the first input means when a recording mode is set;
If it is determined that the event data is input by the determination means, the event recording means for storing the event and its input timing in the storage means,
Detecting means for detecting whether or not reproduction of the connected external storage medium is started when it is determined by the determining means that event data has not been input;
When the start of reproduction is detected by the detection means, external media recording means for storing the external media information inputted from the second input means and the reproduction start timing in the storage means;
When the playback mode is set, the event data stored in the storage means is read based on the corresponding input timing and sent to the sound source, and the stored external media information is set to the corresponding playback start timing. Reproducing means for retrieving information based on the read external media information and retrieving information from the connected external storage medium based on the read external media information;
A musical tone generator characterized by comprising: The recording mode setting means stores external media information stored in the connected external recording medium in the storage means when the recording mode is set,
The reproduction mode setting means determines whether or not the external media information stored in the connected external recording medium matches the external media information stored in the storage means when the reproduction mode is set. The musical tone generator according to claim 1, wherein an error display is displayed if they do not match . First input means for inputting event data for instructing the sound source to generate musical sound, and external media information for searching for the contents of information stored in the connected external storage medium are input. A computer applied to a musical sound generator having second input means;
Recording mode setting step to set to recording mode,
A playback mode setting step for setting the playback mode;
Determining whether or not event data is input to the first input means when a recording mode is set; and
If it is determined that this event data has been input, an event recording step for storing the event and its input timing in a storage means;
A detection step of detecting whether or not playback of the connected external storage medium is started when it is determined that the event data is not input;
When the start of playback is detected, external media recording step for storing the external media information input from the second input means and the playback start timing in the storage means;
When the playback mode is set, the event data stored in the storage means is read based on the corresponding input timing and sent to the sound source, and the stored external media information is set to the corresponding playback start timing. A reproduction step of retrieving information based on the read external media information and retrieving and reproducing information from the connected external storage medium based on the read external media information;
A program for generating music.

Images