JPH10149165A - Waveform recording and reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To recorded only the data required for a user among plural continuously read out waveform data by writing only he waveform data selected by a selection means in a waveform memory while plural waveform data are read out/reproduced continuously. SOLUTION: A user inserts a storage medium 117 storing plural waveform data into a drive 107, and selects plural waveform data to be written in the waveform memory 111, and specifies a write-in area to turn a load start switch on. The selected waveform data are reproduced, and a reproduced sound is emitted, and these waveform data are written successively in the waveform memory 111 by a write-in circuit 109. At this time, when the certain waveform data are reproduced, when the user judges the user doesn't write in these waveforms, the user depresses a cancel switch. Thus, the write-in of these waveform data into the waveform memory is canceled, and the reproduction of these waveform data is skipped to the reproduction of next waveform data.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waveform recording / reproducing apparatus, and more particularly, to a waveform recording / reproducing apparatus having a function of selecting and skipping an arbitrary waveform when loading a plurality of waveforms from a storage medium such as a CD. .

[0002]

2. Description of the Related Art Conventionally, there has been known an electronic musical instrument (sampler) which samples an external sound, takes it into the apparatus as waveform data, and synthesizes a musical tone using the waveform data as one timbre. Also, in such an electronic musical instrument, a CD in which a plurality of waveform data as sound materials are recorded.
There is a type that can load waveform data from a storage medium such as a (compact disk). For example, Japanese Patent Publication No. Hei 6-52475 discloses that in a waveform memory sound source having a rewritable waveform memory, a plurality of waveform data (each waveform data is separated by a silent portion) stored in a storage medium is continuously recorded. And has a function of sequentially writing a plurality of reproduced waveform data to a plurality of areas of a waveform memory independently of each other.

[0003]

However, in the waveform memory sound source disclosed in Japanese Patent Publication No. Hei 6-52475, a plurality of continuously reproduced waveform data are all written in the waveform memory, and only a part is selected. There was an inconvenience that it was not possible to write the data.

According to the present invention, there is provided a waveform recording and reproducing apparatus capable of recording and reproducing waveform data in a rewritable waveform memory. It is an object of the present invention to provide a waveform recording / reproducing device capable of recording in a waveform memory.

[0005]

In order to achieve this object, the invention according to claim 1 is to read out a plurality of waveform data continuously from a storage medium storing a plurality of waveform data and reproduce the waveform data. In a waveform recording / reproducing apparatus for writing a plurality of waveform data to a waveform memory, a plurality of waveform data to be written to the waveform memory from the plurality of read / reproduced waveform data during continuous reading / reproduction of the plurality of waveform data. There is provided a selecting means for selecting the waveform data, and only the waveform data selected by the selecting means is written into the waveform memory.

According to a second aspect of the present invention, there is provided a waveform memory capable of reading and writing waveform data, a storage medium in which a plurality of waveform data are continuously stored with a predetermined blank interposed therebetween, and a plurality of waveform data stored in the storage medium. Reproducing means for reading out the waveform data and sequentially reproducing the waveform data, means for designating a write start position on the waveform memory, and detecting a rising edge of the waveform data for each waveform data sequentially reproduced by the reproducing means. Starting writing of the waveform data to the waveform memory from a specified writing start position,
The process of detecting the falling edge of the waveform data and terminating the writing to the waveform memory is repeated, and at the end of the writing of each waveform data, the writing end position of the currently completed waveform data is written to the next waveform data. Automatic writing means for designating a start position, a cancel switch, and when the cancel switch is operated, the writing operation of the automatic writing means for the waveform data being reproduced / written at that time is stopped, and the reproduction / And canceling means for forcibly specifying a write start position of the waveform data being written as a write start position of the next waveform data.

According to a third aspect of the present invention, there is provided a waveform memory capable of reading and writing waveform data, a storage medium in which a plurality of waveform data are continuously stored with a predetermined blank interposed therebetween, and a plurality of waveform data stored in the storage medium. Reproducing means for reading out the waveform data and sequentially reproducing the waveform data, means for designating a write start position on the waveform memory, an OK switch,
For each waveform data sequentially reproduced by the reproducing means, a rising edge of the waveform data is detected, and writing of the waveform data to the waveform memory is started from a designated write start position, and a falling edge of the waveform data is detected. And repeat the process of ending the writing to the waveform memory and, at the end of the writing of each waveform data, determine whether the OK switch was operated during reproduction / writing of the waveform data, When the OK switch has been operated, the write end position of the waveform data that has just been written is designated as the write start position of the next waveform data, and when the OK switch has not been operated, the write operation of the currently completed waveform data starts. Automatic writing means for designating a position as a writing start position of the next waveform data. To.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a system configuration diagram of an electronic musical instrument (sampler) to which a waveform recording / reproducing apparatus according to the present invention is applied. This electronic musical instrument has a random access memory (RA
M) 101, read only memory (ROM) 102, central processing unit (CPU) 103, panel display 104, panel switch 105, MIDI interface 106,
Drive 107, selector 108, writing circuit 109, access management circuit 110, waveform memory 111, tone generator 1
12, sound system 113, rising detection circuit 11
4, a falling detection circuit 115 and a bus line 116 are provided.

The RAM 101 is a memory used for a work area of the CPU 103 and the like. The ROM 102 has a CP
The control program executed by U103 and various constant data are stored. The CPU 103 controls the overall operation of the electronic musical instrument. In particular, the CPU 103 executes a control program on the ROM 102 to load a plurality of waveform data from the external storage medium 117 such as a CD into the waveform memory 111. See Figure 2 for the operation.
5 will be described later with reference to FIG.

A panel display 104 is a display provided on a panel of the electronic musical instrument, and displays various information. The panel switch 105 is various switches provided on a panel of the electronic musical instrument, and particularly includes a load start switch, a load end switch, and a cancel switch. The load start switch is
A switch for instructing to start a process of sequentially reading a plurality of waveform data (each waveform data is separated by a silent portion) from a storage medium 117 such as a CD or an MD and loading the waveform data into the waveform memory 111. The load end switch is a switch for instructing to end the loading to the waveform memory 111. The cancel switch is a switch for instructing that certain waveform data be skipped (the waveform is not loaded into the waveform memory) while the waveform memory 111 is being loaded. MIDI
The interface 106 is connected to an external MIDI (Musical In
(strument Digital Interface) An interface for connecting devices.

The drive 107 is a drive device in which a removable storage medium 117 such as a CD or MD is mounted, and various data are read from the storage medium. Data read by the drive 107 is transmitted to a bus line 116.
Is sent to the CPU 103 and the like via the. When the data read by the drive 107 is waveform data, the waveform data is sent to the selector 108. Further, the drive 107 has an audio reproducing function, and can read out and reproduce the waveform data from the storage medium 117 and output the reproduced analog musical tone signal.

A selector 108 selectively outputs waveform data or an external waveform input sent from the drive 107 in accordance with an instruction from the CPU 103. The write circuit 109 writes the waveform data output from the selector 108 to the waveform memory 111 (via the access management circuit 110 under the control described later). The waveform data to be written by the writing circuit 109
The data may be waveform data read out from the storage medium 117 such as, or another external waveform input. Also, R
The waveform data stored in the AM 101 or the ROM 102 is sent to the writing circuit 109 via the bus line 116,
The data may be written to the waveform memory 111. In addition,
Although the waveform data read by the drive 107 is assumed to be digital waveform data, the analog data may be converted into digital data at any stage before the analog signal is read and written into the waveform memory 111. The waveform data written in the waveform memory 111
Used when performing tone synthesis with.

The rising detection circuit 114 is connected to the selector 108
And detects the rising portion (start portion of one waveform data) of the waveform data sent from the write circuit 109.
To send to. The rise detection signal of the waveform data is a signal for instructing the start of writing of the waveform data. When receiving the rising detection signal output from rising detecting circuit 114, writing circuit 109 starts writing the waveform data. That is, the writing circuit 109 starts the process of writing the rising waveform data into a predetermined area of the waveform memory 111 under the control of the access management circuit 110.

The falling detection circuit 115 is connected to the selector 108
And detects the falling portion (end of one waveform data) of the waveform data output from the ASIC, and sends the detection signal to the writing circuit 109. The falling detection signal of the waveform data is a signal for instructing the end of the writing of the waveform data. That is,
When receiving the falling detection signal output from falling detecting circuit 115, writing circuit 109 ends the write processing of the waveform data.

The write circuit 109 includes a rising detection circuit 1
14 and a falling detection signal output from the falling detection circuit 115,
An interrupt is issued to the CPU 103. When receiving an interrupt, the CPU 103 detects the cause and performs an interrupt process according to the cause.

The access management circuit 110 is a circuit for managing access to the waveform memory 111 from various circuits. Specifically, the waveform memory 11 from the writing circuit 109
1, a request to read waveform data from the tone generator 112 when synthesizing a tone,
This is a circuit that performs processing for adjusting an access request from the 103 to the waveform memory 111 and the like. The sound source 112 is a CP
Under the control of U103, waveform data is read from the waveform memory 111 via the access management 110, a musical tone is synthesized using the waveform data, and output to the sound system 113. The CPU 103 detects a MIDI event input such as a note-on input via the MIDI interface 106 and sends a sounding instruction or the like to the sound source 112 in accordance with the event. The sound system 113
A tone is emitted based on a tone signal output from the sound source 112. The sound system 113 is connected to the drive 1
The analog tone signal (reproduced sound of the storage medium 117 such as a CD) output from the electronic musical instrument 07 can be directly emitted.

In this electronic musical instrument, a storage medium 1 such as a CD is used.
When a plurality of waveform data is continuously read from 17 and written into the waveform memory 111 while reproducing, the waveform data determined by the user as unnecessary is depressed by pressing the cancel switch so as not to be written into the waveform memory 111. Can be instructed. Specifically, the user inserts the storage medium 117 storing a plurality of waveform data into the drive 107 and selects (selects) a plurality of pieces of waveform data to be written from the storage medium 117 into the waveform memory 111.
A write area of the waveform memory 111 is designated, and a load start switch is turned on. As a result, the selected plurality of waveform data are sequentially reproduced by the drive 107 to emit a reproduced sound, and the waveform data is written into the writing circuit 1.
In step 09, the data is sequentially written to the designated area of the waveform memory 111. When certain waveform data is being played,
When the user determines that the waveform is not written to the waveform memory 111, the user turns on the cancel switch. As a result, the writing of the waveform data to the waveform memory 111 is cancelled, the reproduction of the waveform data is skipped, and the reproduction of the next waveform data is started. Hereinafter, a procedure for performing such an operation will be described.

FIG. 2A is a flowchart of a main routine executed by the CPU 103 when the power of the apparatus is turned on. First, in step 201, various initial settings are performed. Next, in step 202, it is checked whether or not a factor for performing some processing has occurred. If a factor has occurred, the process proceeds from step 203 to step 204 to branch to various processes for each type of factor that has occurred. If there is no processing factor in step 203, the process returns to step 202 and the factor check is repeated. In step 204, the process branches to various processes for each type of factor that has occurred. First MID
If an I input has occurred, the process proceeds to step 205 to perform MIDI processing, and returns to step 202. If the operation of the panel switch 105 has been detected in step 204, the process proceeds to step 206 to perform switch processing, and returns to step 202. If the factor generated in step 204 is other factors than the MIDI input and the switch input, other processes are performed in step 207 and the process returns to step 202.

FIG. 2B shows a storage medium 117 such as a CD.
5 shows the operation procedure of the user when loading the waveform data into the waveform memory 111 from. In step 211, the user inserts the storage medium 117 such as a CD into the drive 107. Here, a CD is used. Next, in step 212, the panel switch 105 is operated to
From the plurality of waveform data recorded in D117, a series of a plurality of waveform data to be written to the waveform memory 111 is selected (selection of one group of waveforms). Next, in step 213, the write area of the waveform memory 111 is designated by the panel switch 105. Next, step 214
Turn on the load start switch.

When the user operates the load start switch as shown in FIG. 2B, in step 204 of FIG. 2A, the operation of the load start switch is detected as an activation factor, and the corresponding switch processing is performed. Perform 206.
FIG. 2C shows a flowchart of a load start switch-on event process that is executed when the ON of the load start switch is detected.

First, in step 221, the inserted CD1
Cueing of the waveform data for one selected group of 17 music pieces is performed. The cueing is a process of notifying the drive 107 of a position at which reading and reproduction of the CD 117 are started. Next, at step 222, the write circuit 109 writes the write area of the waveform memory 111 (step 213 of FIG. 2B).
Is specified by the user). Next, in step 223, the drive 107 is instructed to start reproduction of the CD 117, and the write circuit 109 is instructed to start operation. As a result, the drive 107 starts reproducing a plurality of waveforms selected from a predetermined position of the CD 117 (the position searched at step 221), and outputs an analog output to the sound system 113. Further, the drive 107 starts a process of outputting the waveform data read from the CD 117 to the writing circuit 109 via the selector 108. The writing circuit 109 starts the waveform data writing process described with reference to FIG. That is, the waveform data output from the selector 108 based on the rising detection signal output from the rising detecting circuit 114 is stored in the waveform memory 111.
And the process of ending the writing of the waveform data based on the fall detection signal output from the fall detection circuit 115 is repeated for each waveform data. Next, in step 224, the register AREC is set to 1, and the process is terminated. The register AREC is set to “1” when performing a process of writing to the waveform memory 111 while continuously reproducing a plurality of waveform data, and otherwise is set to “0” (for example, when writing only one waveform). Is a register to be set.

By operating the load start switch as described above, the user can start writing a plurality of designated waveform data into the waveform memory 111. When ending the process of loading the waveform memory 111, the user turns on the load end switch of the panel switches 105. FIG. 3A shows a flowchart of the load end switch-on event processing executed in step 206 of FIG. 2A when the load end switch is turned on.

First, in step 301, the operation of the writing circuit 109 is stopped, and the reproduction process by the drive 107 is terminated. Next, at step 302, the register R
EC and AREC are reset to 0, and the process ends. The register REC indicates “1” when the write circuit 109 is writing one waveform data into the waveform memory 111;
Other registers are "0". Writing of one waveform starts with the rising detection signal of the waveform and ends with the falling detection signal. Therefore, REC = 1 when the rising detection signal is detected, and REC = 0 when the falling detection signal is detected. (Described later in FIG. 3B).

FIG. 3B shows a flowchart of an interrupt event process executed by the CPU 103 when an interrupt from the writing circuit 109 occurs. First, step 311
In step 312, the process branches to various processes according to the interrupt factor.

If the interrupt factor is the rise detection from the rise detection circuit 114, it means that the writing circuit 109 has started writing the waveform that has just risen into the waveform memory 111. RE
Set 1 to C and return. If the interruption factor is the fall detection from the fall detection circuit 115 in step 312, it means that the writing circuit 109 has finished writing the waveform that has just fallen into the waveform memory 111, and thus step 314. Resets the register REC to 0, and determines in step 315 whether the register AREC is 1. When the register AREC is 1,
A plurality of waveforms are continuously stored in the waveform memory 111 from the CD 117.
Therefore, in preparation for writing of the next waveform data to be continuously reproduced, step 3 is performed.
In step 17, the write circuit 109 is designated to which area of the waveform memory 111 the next waveform data is to be written, and the process is terminated. Specifically, the write end position of the waveform data that has just been written is designated as the write start position of the next waveform data. In step 315, register AR
When EC is not 1, it means that only one waveform is recorded, so that one waveform has already been recorded by falling detection,
In step 316, the operation of the writing circuit 109 is stopped, and the process returns.

If the interrupt factor is the memory full of the waveform memory 111 (the write area is lost) in step 312, the operation of the write circuit 109 is stopped in step 318, and the registers REC and AREC are determined in step 319.
Is reset to 0, and the routine returns. If the interrupt factor is other in step 312, the process returns to step 320 after performing other processes.

FIG. 4A shows a flowchart of the cancel switch on event process executed in step 206 of FIG. 2A when the user turns on the cancel switch. The user operates the load start switch to turn on the cancel switch during reproduction of a plurality of waveforms and writing to the waveform memory 111, so that the waveform data reproduced at that time is stored in the waveform memory 111. Writing can be canceled.

In the cancel switch on event process, first, at step 401, it is determined whether or not the register REC is "1". When the register REC is not 1,
Since this means that the waveform data is not currently being written to the waveform memory 111, the process is terminated. If the register REC is 1 in step 401, the register REC is reset to 0 in step 402, the waveform data currently being written is canceled in step 403, and the writing circuit 109 Returns to the state before the start of writing the waveform data. This is because, until the cancel switch is turned on, the waveform being reproduced is written to the waveform memory 111 by the writing circuit 109, so that the writing process of the waveform is forcibly stopped and written. The waveform data is canceled (specifically, the write start position of the waveform data that has been written is designated as the write start position of the next waveform data).

Next, at step 404, the register ARE
It is determined whether or not C is 1. Register AREC is 1
If this is the case, it means that the writing of the next reproduced waveform is to be continued, and in step 405, the reproduction of the currently canceled waveform data is skipped, and the process ends. By this playback skip, the drive 10
7 continues the reproduction of the next waveform data and the output to the writing circuit 109, and the writing of the next waveform data continues. Since a plurality of pieces of waveform data on the CD 117 are provided with index data, the waveform being reproduced is skipped by referring to the index data so that the reproduction of the next waveform is continued. can do. The reproduction may be continued without performing the reproduction skip in step 405. Note that the interrupt processing at the falling edge of the waveform is preparation for the next writing, so that when the writing is canceled, the processing is unnecessary regardless of whether or not the reproduction is skipped.

If the register AREC is not 1 in step 404, it means that only one waveform has been written, and that writing of the waveform data has been canceled. Therefore, in step 406, the operation of the writing circuit 109 is stopped. Then, the reproduction process of the drive 107 is stopped, and the process ends.

FIG. 4B shows the MIDI interface 1
When the MIDI note-on event is received via the MID 06, the MID executed in step 205 of FIG.
5 shows a flowchart of an I note-on event process. First, in step 411, the channel number, note number, and velocity included in the received MIDI note-on event are fetched. Next, at step 412, sound source 1
A tone generation channel is assigned to 12, and in step 413, waveform data in the waveform memory 111 is selected. The timbre data to be used for pronunciation is selected in advance by the user from a plurality of timbre data. The tone color data includes data specifying a storage area in the waveform memory 111 of waveform data used for generating a tone, and tone parameters for controlling the shape of the volume envelope of the tone. Next, in step 414, the sound generation parameter is set to the assigned channel of the sound source 112, and
At 15, the sound generation start is instructed to the channel, and the process returns.

In the embodiment of the present invention, the writing of the waveform data is started by the load start switch, and the cancel switch is turned on while the plurality of waveform data are being written to the waveform memory 111 while being sequentially reproduced. Then, one waveform data being reproduced / written at that time can be canceled, and the reproduction / writing process of the waveform data is terminated by the load end switch. Thereby, the user instructs not to write only unnecessary data to the waveform memory 111 by operating the cancel switch while listening to a plurality of waveform data, and to write other waveform data to the waveform memory 111. Can be. Instead of canceling only unnecessary waveforms by the cancel switch, the user may record only necessary waveforms in the waveform memory by using the OK switch. Hereinafter, such a modified example will be described. In the following modified example, only the changed part from the above-described embodiment of the invention will be described.

First, in this modification, an OK switch is provided instead of the cancel switch. The reproduction of a plurality of waveform data is started by the load start switch, and the user turns on the OK switch during reproduction.
1 is written, and the waveform for which the OK switch is not turned on is not written. Basically, the writing to the waveform memory 111 is started at the rising edge of the waveform data, and the writing of the waveform is ended at the falling edge, as in the above embodiment. In this modified example, it is checked whether or not the OK switch is turned on at the time of falling of each waveform, and if it is turned on, the written waveform data is left as it is,
If not, cancel the written waveform data.

In this modification, step 3 in FIG.
Step 501 of FIG. 5A is executed instead of 13. That is, when an interrupt indicating the detection of the rising edge of the waveform data is received from the write circuit 109, 1 is set in the register REC and 0 is set in the register OK in step 501. The register OK is a register that is reset to 0 when each waveform rises and becomes 1 when the OK switch is turned on. In step 501, since the rising of the waveform data has come, the register REC is set to 1 for performing the waveform data writing processing by the writing circuit 109, and the register OK for specifying whether to write or not to write the waveform data currently being reproduced is set. Initially set to 0 (instruction not to write).

Further, the processing of step 317 in FIG. 3B is changed as shown in FIG. That is, when the falling of the waveform data is detected, and when the register AREC
Is 1 and the writing of the next waveform data is continued, the processing of FIG. 5B is performed. First, step 511
Then, it is determined whether or not the value of the register OK is 1. If the register OK is not 1, it means that the OK switch was not turned on during the reproduction of the waveform data that has just fallen, so that the user did not express his intention to record this waveform data. Step 512
Then, the waveform data that has just been written to the waveform data is cancelled, and the writing circuit 109 returns to the state before the start of writing the waveform data. Specifically, the write start position of the currently written waveform data is designated as the write start position of the next waveform data. If the value of the register OK is 1 in step 511, it means that the OK switch is turned on during reproduction of the waveform data that has just fallen, and the user has instructed to write this waveform data. Then, a write area for the next waveform data is set in the write circuit 109, and the routine returns.

FIG. 5C is a flowchart of the OK switch on event process executed in step 206 of FIG. 2A when the user operates the OK switch. In step 521, 1 is set in the register OK to indicate that the OK switch has been turned on, and the process ends.

When the OK switch is operated, the remaining portion of the waveform being reproduced may be read out at high speed without producing a sound, and written to the waveform memory to skip to the beginning of the next waveform.

Further, both a cancel switch and an OK switch may be provided. In this case, basically, the data whose OK switch is turned on during the reproduction of one waveform data is written into the waveform memory, and the data whose OK switch is not turned on is not written into the OK memory. If the cancel switch is turned on during that time, the waveform may be skipped and the next waveform may be fast-forwarded.

During reproduction from the external storage medium, only the operation of the cancel switch or the OK switch is detected without writing to the waveform memory, and only the necessary waveform is compared at the time of waveform reproduction based on the detection result after the reproduction is completed. You may make it read at high speed and write to a waveform memory.

[0041]

As described above, according to the present invention, of a plurality of continuously reproduced waveform data, the user needs to listen to the reproduced sound and write to the waveform memory.
Since unnecessary can be specified, the user can selectively record only necessary waveforms in the waveform memory.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram of an electronic musical instrument (sampler) to which a waveform recording / reproducing apparatus according to the present invention is applied.

FIG. 2 is a flowchart of a main routine, a user operation procedure, and a load start switch-on event process.

FIG. 3 is a flowchart of a load end switch-on event process and an interrupt event process.

FIG. 4 shows a cancel switch-on event processing MIDI.
Flow chart of note-on event processing

FIG. 5 is a flowchart of a modified example.

[Explanation of symbols]

101: random access memory (RAM), 102:
Read only memory (ROM), 103 Central processing unit (CPU), 104 Panel display, 105 Panel switch, 106 MIDI interface, 107 Drive, 108 Selector, 109 Write circuit, 110
... Access management circuit, 111 waveform memory, 112 sound source circuit, 113 sound system, 114 rise detection circuit, 115 fall detection circuit, 116 bus line, 117 external storage medium.

Claims (3)

[Claims] 1. A method for reading and reproducing a plurality of waveform data from a storage medium storing a plurality of waveform data,
In the waveform recording / reproducing apparatus for writing the plurality of waveform data to the waveform memory, a plurality of waveform data to be written to the waveform memory from the plurality of read / reproduced waveform data during continuous reading / reproduction of the plurality of waveform data. A waveform recording / reproducing apparatus, comprising a selecting means for selecting the waveform data, and writing only the waveform data selected by the selecting means to the waveform memory. 2. A waveform memory capable of reading and writing waveform data, a storage medium in which a plurality of waveform data are continuously stored with a predetermined blank interposed therebetween, and a plurality of waveform data read from the storage medium. A reproducing unit for sequentially reproducing, a unit for specifying a write start position on the waveform memory, and a write start position specified by detecting a rising edge of the waveform data for each waveform data sequentially reproduced by the reproducing unit. From the start of writing the waveform data to the waveform memory, and repeats the process of detecting the falling edge of the waveform data and terminating the writing to the waveform memory. An automatic writing procedure that specifies the end position of the completed waveform data write as the start position of the next waveform data write A step, a cancel switch, and when the cancel switch is operated, the writing operation of the automatic writing means for the waveform data being reproduced / written at that time is stopped, and the writing of the waveform data being reproduced / written is performed. A waveform recording / reproducing apparatus comprising: canceling means for forcibly specifying a start position as a write start position of the next waveform data. 3. A waveform memory from which waveform data can be read and written, a storage medium in which a plurality of waveform data are continuously stored with a predetermined blank interposed therebetween, and a plurality of waveform data read from the storage medium. Reproducing means for sequentially reproducing, means for specifying a write start position on the waveform memory, an OK switch, and for each waveform data sequentially reproduced by the reproducing means, a rising edge of the waveform data is detected and specified. From the write start position, writing of the waveform data to the waveform memory is started, the process of detecting the falling edge of the waveform data and terminating the writing to the waveform memory is repeated, and at the time when the writing of each waveform data ends. Then, it is determined whether or not the OK switch is operated during reproduction / writing of the waveform data. When the operation has been performed, the write end position of the waveform data that has just been written is designated as the write start position of the next waveform data. When the OK switch has not been operated, the write start position of the waveform data that has just been written has been specified. An automatic writing means for designating a write start position of the next waveform data.