JP4826522B2 - Waveform editing apparatus and program - Google Patents

Description

  The present invention relates to a waveform editing apparatus and program for editing data of a corresponding waveform file in accordance with an operation of a waveform displayed in a predetermined screen. In particular, the present invention relates to a waveform editing apparatus and a program that allow a user to easily and quickly specify a file format for correctly reading a waveform file from a storage means.

Conventionally, a waveform editing apparatus or a waveform editing program capable of editing a waveform file composed of waveform data such as musical sounds is known. Particularly recently, GUI (Graphical User Interface) has been widely adopted in waveform editing devices, and users can cut, copy, paste, insert, etc. for waveforms within a predetermined screen displayed on the display. By simply performing a simple operation, the waveform file corresponding to the waveform can be arbitrarily edited. As an example related to such a technique, for example, the invention described in Patent Document 1 shown below is an example. Conventional waveform editing apparatuses can use waveform files in a plurality of file formats (also referred to as file formats or data formats: hereinafter simply referred to as formats), and are generally attached to waveform files. Automatically recognizes the waveform file format from the specified extension (for example, WAV, RAW, etc.) and the format information defined in the header, and starts an appropriate program according to the recognized format. Alternatively, set the appropriate value for the parameter, read the waveform file correctly from the storage means, and edit the GUI based on the correctly loaded waveform file in the newly opened (newly displayed) screen. The waveform for use is displayed.
JP-A-8-76747

  By the way, some waveform files have no extension or format information, and some have a type of extension or format information that cannot be automatically recognized. In the case of such a waveform file, the correct format cannot be automatically recognized from the extension, format information, etc., so the user can specify an arbitrary format and store it regardless of whether the format is correct or incorrect. The waveform file is read once from the means, and the waveform for GUI editing is displayed in the screen newly opened on the display. Specifically, the user designates one of a plurality of formats in order or arbitrarily, and looks at the waveform displayed on the screen based on the waveform file read according to the designated format each time, and the waveform file Can be determined (in other words, whether the format specified by the user matches the format of the waveform file). That is, if the specified format matches the waveform file format, the waveform file is read correctly and the normal waveform is displayed in the newly opened screen, but the specified format matches the waveform file format. If not, even if the waveform file is read, it is not read correctly, and a waveform that is clearly abnormal is displayed in a newly opened screen. Referring to the waveform displayed in this screen, if the user determines that the specified format is not a format for correctly reading the waveform file from the storage means, the screen displayed on the display is closed and then another screen is displayed. It is necessary to open a new screen by specifying a format, and to determine whether or not the waveform file has been read correctly by referring to the waveform in the newly opened screen. In other words, a new screen is displayed on the display each time a format is specified, so that if the user specifies a format many times, a large number of screens are displayed, making it difficult to see the screen. Therefore, in order to make it easy for the user to see only the necessary screen, it is preferable to close the screen displaying the abnormal waveform in advance.

  However, since there are many waveform file formats that can be handled by the waveform editing device, the user can specify the format in the screen that is opened each time until the waveform file is correctly read from the storage means whose format is unknown. The task of checking the displayed waveform and closing the screen displaying the abnormal waveform before specifying another format must be repeated many times, which is cumbersome and can be cumbersome. There was a problem that it took a lot of time and trouble to specify a format that can be read correctly and display a waveform.

  The present invention has been made in view of the above points so that a user can easily and quickly specify a format capable of correctly reading a waveform file from a waveform file whose format is unknown and displaying the waveform. An object of the present invention is to provide a waveform editing apparatus and a program.

  A waveform editing apparatus according to the present invention is a waveform editing apparatus that performs data editing of a waveform file corresponding to the waveform stored in a storage means in response to operating a waveform displayed on an edited waveform display unit. A waveform file selection means for selecting a waveform file, a first waveform display means for displaying the data of the selected waveform file as a waveform on the edited waveform display section, and a presentation means for presenting various file formats. The file format selection means for selecting one file format from the various file formats presented, and the data of the selected waveform file is displayed as a temporary waveform on the temporary waveform display unit according to the selected file format. Each time the file format is selected with the second waveform display means, the display of the waveform in the edited waveform display section is not switched, Comprising a control means for controlling so as to switch only the temporary display of the waveform appropriately in the temporary waveform display.

  According to the present invention, when the data of the selected waveform file is displayed as a waveform on the edited waveform display unit according to the selection of the waveform file, one file format is selected from the various file formats presented. Then, according to the selected file format, the data of the selected waveform file is displayed as a temporary waveform on the temporary waveform display unit. The waveform temporarily displayed on the temporary waveform display section is switched every time a file format is selected. On the other hand, even if the file format is selected, the waveform displayed on the edited waveform display section cannot be switched. That is, every time a file format is selected, control is performed so as to appropriately switch only the temporary display of the waveform in the temporary waveform display unit without switching the waveform display in the edited waveform display unit. As a result, the user does not have to perform troublesome operations such as closing the screen on which the waveform based on the waveform file read in the wrong file format is displayed, and the waveform file is correctly extracted from the waveform file whose file format is unknown. A file format that can be read and a correct waveform can be displayed can be easily and quickly specified.

  The present invention can be constructed and implemented not only as a device invention but also as a method invention. Further, the present invention can be implemented in the form of a program of a processor such as a computer or a DSP, or can be implemented in the form of a storage medium storing such a program.

  According to the present invention, since only the temporary display of the waveform in the temporary waveform display unit is switched without opening a new screen in response to the selection of the file format, there is no need for the user to perform troublesome operations. There is an excellent effect that it is possible to easily and quickly specify a file format for correctly reading a waveform file whose file format is unknown from the storage means.

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

  FIG. 1 is a hardware configuration block diagram showing the overall configuration of the waveform editing apparatus according to the present invention. The hardware configuration example of the waveform editing apparatus shown here is configured by using a computer, and a “waveform editing screen” (not shown) including a waveform for GUI editing based on a waveform file correctly read from a storage device. Is displayed on the display, and a known waveform editing process (not shown) for editing data of the original waveform file in response to the user performing an editing operation on the waveform for GUI editing, Waveform reading processing (see FIG. 3 to be described later) is a pre-process for displaying a waveform for GUI editing on the “waveform editing screen”, which specifies the format of the waveform file and correctly reads the waveform file from the storage means. This is implemented by a computer executing a predetermined control program. Of course, these processes are not limited to the form of computer software, but can be implemented in the form of a microprogram processed by a DSP (digital signal processor), and are not limited to this form of program, but are also discrete. You may implement with the form of a dedicated hardware apparatus comprised including a circuit or an integrated circuit, a large-scale integrated circuit, etc.

  The waveform editing apparatus shown in this embodiment is controlled by a microcomputer comprising a microprocessor unit (CPU) 1, a read only memory (ROM) 2, and a random access memory (RAM) 3. The CPU 1 controls the operation of the entire waveform editing apparatus. A ROM 2, a RAM 3, a detection circuit 4, a display circuit 5, a sound source circuit 6, and a communication interface (I / F) 7 are connected to the CPU 1 via a data and address bus 1D. The ROM 2 stores various data such as various programs executed by the CPU 1 and waveform files including audio waveform data. The RAM 3 is used as a working memory that temporarily stores various data generated when the CPU 1 executes a predetermined program, or as a memory that stores a currently executed program and related data. A predetermined address area of the RAM 3 is assigned to each function and used as a register, flag, table, memory, or the like.

  The operation element 4A displays a waveform to be edited in the “waveform editing screen” in addition to switches such as an edit start switch for displaying a “waveform editing screen” (not shown) for waveform editing on the display unit 5A. There are various operation / setting operators for selecting a file, editing a waveform for GUI editing, and directly inputting parameters for waveform editing. For example, there are a numeric keypad for inputting numeric data, a keyboard for inputting character data, and a pointing device such as a mouse for operating a pointer or cursor displayed on the display unit 5A. The detection circuit 4 detects the operation state of the operation element 4A, and outputs switch information corresponding to the operation state to the CPU 1 via the data and address bus 1D.

  The display circuit 5 displays, for example, a “waveform” for presenting a waveform file stored in the waveform editing apparatus to a user on a display unit 5A (so-called display) including a liquid crystal display panel (LCD), a CRT, or the like. In addition to known screens (not shown) such as “list screen” and “waveform editing screen” for waveform editing described above, the user specifies the format of the waveform file whose format is unknown and cannot be automatically recognized (confirmed) For this purpose, a “format designation screen” (see FIG. 2 to be described later) or control for displaying the control state of the CPU 1 is performed. By referring to these various screens displayed on the display unit 5A, the user can easily specify the format of the waveform file whose format is unknown, edit the waveform file, etc., for example. Yes.

  The tone generator circuit 6 can simultaneously generate musical tone signals on a plurality of channels, inputs data and performance information given via the address bus 1D, and generates musical tone signals based on the performance information. The musical tone signal generated from the sound source circuit 6 is generated by a sound system 6A including an amplifier and a speaker. Any conventional configuration may be used for the configuration of the sound source circuit 6 and the sound system 6A. For example, the tone generator circuit 6 may employ any of various tone synthesis methods such as FM, PCM, physical model, formant synthesis, etc., and may be configured by software processing by the CPU 1 or by dedicated hardware. May be. An effect circuit for giving an effect to the musical sound signal may be included.

  The communication interface (I / F) 7 is an interface for connecting the waveform editing device and the external device 7A to a state in which data can be transmitted and received in order to load various control programs and various data from the external device 7A to the waveform editing device side. It is. For example, when various data such as a control program activated in accordance with a format that can be assigned to a waveform file or a user-desired waveform file are not stored in the ROM 2, the user can select a user-desired control program or the like from the external device 7A Data and the like can be downloaded via the communication interface (I / F) 7. The communication interface (I / F) 7 is connected to a server computer (external device) via a wired or wireless communication network (not shown) such as a LAN, the Internet, or a telephone line, and the connected server computer. A network interface that can download various control programs and various data from the network.

  The waveform editing apparatus described above is not limited to the one having the operation element 4A, the display unit 5A, the tone generator circuit 6 and the like built in one apparatus body, but each is configured separately, and communication means such as various interfaces and various networks are provided. Needless to say, the apparatus may be configured to be connected to each other. Furthermore, the waveform editing apparatus according to the present invention is not limited to the computer as described above, and may have a waveform editing function such as an electronic musical instrument, a karaoke apparatus, a game apparatus, a portable communication terminal such as a mobile phone, and an automatic performance piano. Any form of apparatus / apparatus may be applied. When applied to a portable communication terminal, not only when a predetermined function is completed with only the terminal, but also with a part of the function on the server computer side, the waveform editing function as a whole system consisting of the terminal and the server computer May be realized.

  A “format designation screen” for the user to designate the format of the waveform file will be described with reference to FIG. FIG. 2 is a conceptual diagram showing an example of the “format designation screen”. In the “format designation screen” FG shown in FIG. 2, the user selects a waveform file whose format is unknown and whose format cannot be automatically recognized (confirmed) as a waveform file to be edited in the “waveform editing screen” EG. In this case, the “waveform editing screen” EG that is already displayed is a screen that is newly displayed on the display unit 5A as a separate screen (for example, a pop-up screen or the like).

  As can be understood from FIG. 2, the “format designation screen” FG shown here includes a format designation selection part (TS, AS), a provisional waveform display part WD, and a “confirm” button KB. The format designation selection section (TS, AS) on the left side of the screen is an area for the user to select an arbitrary format, which is largely a format type input section TS for selecting a format type (for example, extension), and a format It is divided into a format information input section AS for selecting information (for example, waveform data conversion method, quantization bit, sampling frequency, acoustic method, etc.) The format type input unit TS and / or the format information input unit AS can display a list of predetermined format types or format information as candidates. The user can arbitrarily select one format type and format information from among a number of format types or format information displayed as candidates by operating the pointer P (or cursor) or the like. This embodiment shows a state in which “Raw” format is selected as the format type and “PCM signed 16 bit, big endian, mono” (16 bit PCM monaural) is selected as the format information.

  The format (format type or format information) displayed as a candidate in the format type input unit TS or the format information input unit AS described above generally has a corresponding control program stored in the waveform editing apparatus, Only formats that can be controlled by the waveform editing apparatus are displayed as candidates. Of course, the present invention is not limited to this, and when the control program stored in the external device 7A can be used via the communication interface 7, even if the format does not store the control program corresponding to the waveform editing apparatus, May be displayed.

  The temporary waveform display section WD on the right side of the screen is an area for temporarily displaying a waveform based on the waveform file when the waveform file is read from the storage means reflecting the format selected by the format designation selection section (TS, AS). is there. The waveform displayed on the temporary waveform display section WD is a waveform corresponding to a part of data of the selected waveform file, and is displayed in accordance with the newly selected format every time a new format is selected by the user. Redisplay in format. For example, when “PCM signed 16 bit, big endian, mono” is selected in the format information input section AS, various parameters (here, waveform data) specified from the selected “PCM signed 16 bit, big endian, mono” are selected. The conversion method is PCM, the quantization bit is 16 bits, the acoustic method is monaural, etc.), and a partial waveform is displayed when the waveform file is read from the storage means according to the set parameters. Further, when the user operates the pointer P and selects another format “PCM signed 32bit, big endian, stereo” in the format information input section AS while the partial waveform is displayed, the selection is made. In addition, various parameters specified from “PCM signed 32bit, big endian, stereo” (here, the waveform data conversion method is PCM, the quantization bit is 32 bits, the acoustic method is stereo, etc.) are set, and according to the set parameters The display is switched to a partial waveform when the waveform file is read from the storage means. That is, the user can display a partial waveform when the format is applied only by positioning the pointer P or the like on the format displayed as a candidate.

  Although not shown, the “waveform editing screen” EG has an edited waveform display section for displaying the waveform to be edited (that is, displaying the read waveform file data as a waveform). In addition to the edited waveform display section in the “waveform editing screen” EG, the temporary waveform display section WD of the “format designation screen” FG is individually displayed. Of course, the display mode of the edited waveform display unit and the provisional waveform display unit WD is not limited to this, and at least the edited waveform display unit and the provisional waveform display unit WD are displayed on the screen as independent separate display areas. It only has to be adapted.

  The “confirm” button KB is a button for specifying the format and ending the screen. That is, by operating this “confirm” button KB, the format selected by the format designation selection unit (TS, AS) is specified as the format to be applied when the waveform file is read from the storage means, and the specified According to the format, all of the waveform files are read from the storage device such as the ROM 2, and a waveform for GUI editing for editing the waveform file designated as the editing target is displayed on the “waveform editing screen” EG. To close the format designation screen FG and return to the state in which only the waveform editing screen EG is displayed without confirming the designated format, click the “×” (close) button CB on the format designation screen. Good. In this case, the waveform for GUI editing is not displayed on the waveform editing screen EG (of course, only when the format is unknown). When the user closes the displayed “waveform editing screen” EG (and the waveform editing processing program (not shown) is also terminated accordingly), click the “×” (close) button CB on the format designation screen. Needless to say, the displayed “format designation screen” FG is also automatically closed without any operation (with this, the waveform reading processing program shown in FIG. 3 described later is also forcibly terminated).

  In the above-described embodiment, the example in which the format selected when the waveform file is read from the storage unit is described as an example, but the present invention is not limited to this. For example, a format selected when displaying a waveform may be applied. The format may be applied at any time as long as the display format of the displayed waveform and how to handle data at the time of data editing change at least depending on the format type.

  Next, a specific process for controlling the “format designation screen”, which is a “waveform reading process” for correctly reading the waveform file from the storage means in accordance with the specification of the waveform file format, will be described with reference to FIG. To do. FIG. 3 is a flowchart showing an example of the “waveform reading process”.

  The “waveform reading process” is a subprogram activated separately from “waveform editing process” (first waveform display means) which is a main program for displaying a “waveform editing screen” and editing a waveform file. . That is, the waveform editing apparatus shown in FIG. 1 executes the “waveform editing process” which is a main program for editing the corresponding waveform file by manipulating the GUI editing waveform displayed on the “waveform editing screen”. The process is transferred from the “waveform editing process” to the “waveform reading process” in response to the selection of the waveform file to be edited on the “waveform editing screen”. When a waveform file is selected, the waveform reading process is immediately performed without switching the waveform in the edited waveform display area in the waveform editing screen (that is, without displaying the waveform of the newly selected waveform file). to start. When the format to be applied is specified in the “waveform reading process” and the entire waveform file is read, the process returns from the “waveform reading process” to the “waveform editing process”. After completion of this “waveform reading process”, the waveform in the edited waveform display section in the waveform editing screen is switched to the selected waveform and displayed. That is, when the process returns from the “waveform reading process” to the “waveform editing process”, the waveform file read in the format immediately determined in the “waveform editing process” is displayed on the edited waveform display unit.

  The processing operation of the “waveform reading process” will be described below according to the flowchart shown in FIG. In step S1, the format of the waveform file selected and instructed for waveform editing is determined according to the extension attached to the waveform file or the format information recorded in the header portion of the waveform file. Here, in order to select a waveform file to be edited on the “waveform editing screen”, for example, double-click the icon of the desired waveform file from the icons corresponding to each waveform file displayed on the “waveform editing screen”. In addition, it may be performed by an existing well-known technique such as selecting a desired waveform file from waveform files displayed in a list of file names or the like on a screen for opening a predetermined file. In step S2, it is determined whether or not the format of the waveform file selected and designated as the waveform editing target cannot be automatically determined. When the format of the selected waveform file can be determined, that is, the extension attached to the waveform file or the format information recorded in the header of the waveform file is stored in the control program stored in the waveform editing device in advance. If the format can be automatically determined (NO in step S2), the entire format file is read from the storage means by applying the determined format (step S5).

  On the other hand, if the format of the selected waveform file cannot be automatically determined, that is, the extension attached to the waveform file or the format information recorded in the header portion of the waveform file is stored in the waveform editing device in advance. If the file does not correspond to a control program or the like, or the extension or format information is not attached to the waveform file (YES in step S2), the “format designation screen” (see FIG. 2) is displayed on the display unit 5A. (Step S3). When this “format designation screen” is displayed, it is displayed on the display unit 5A as a pop-up screen or the like different from the “waveform editing screen” already displayed. A step S4 presents format candidates in accordance with the user operation on the displayed “format designation screen”. Specifically, a large number of format types or format information determined in advance in the list box of the format type input unit TS and the list box of the format information input unit AS of the “format designation screen” shown in FIG. 2 are candidates. List display. In this case, a number of format types or format information to be displayed in the list box of the format type input unit TS or the format information input unit AS can be changed according to the operation of the pointer P (or cursor) by the user. Needless to say.

  In step S6, it is determined whether any candidate is selected from the presented format candidates. The user moves a pointer P (or cursor) on the display unit 5A by operating a pointing device such as a mouse in the list box of the format type input unit TS and the format information input unit AS on the “format designation screen”. When a format is newly selected in accordance with the movement of the pointer P or the cursor (when either the format type or the format information positioned (instructed) superimposed on the pointer P or the cursor is changed) It is recognized that a new candidate has been selected from among the format candidates presented (listed) in the list box of the format type input unit TS and the format information input unit AS.

  If it is determined that any one of the presented format candidates has been selected (YES in step S6), the waveform file is stored with some data from the top of the waveform file to be edited. The data is read from the storage means stored in the buffer provided in the RAM 3 (step S7). In step S8, a part from the top of the waveform file written in the buffer is read according to the selected format, and the waveform is read on the temporary waveform display section WD (see FIG. 2) in the “format designation screen” based on this. indicate. That is, every time a format is selected, only the temporary display of the waveform in the temporary waveform display section WD in the “format designation screen” is performed without switching the waveform display in the edited waveform display section of the “waveform editing screen” EG. Control to switch appropriately. Here, the waveform file can be read by reading only a part of the data from the top of the waveform file without reading the entire data of the waveform file. Therefore, a buffer having a very small storage capacity compared to the storage capacity necessary for storing the entire waveform file is prepared in the RAM 3, and the waveform file is sequentially written from the top to the buffer. Only a partial range of data from the beginning of the waveform file can be stored in the buffer. Therefore, the waveform displayed based on the waveform file stored in the buffer is not the entire waveform, but only the partial waveform corresponding to the partial range from the beginning of the waveform file. Of course, the method for displaying the partial waveform is not limited to the method using the buffer, and other methods may be used. For example, a partial waveform display related to the waveform file is stored in the image data format for each format in the header portion of the waveform file, and the corresponding image data is extracted from the header portion according to the specified format. On the basis of this, a partial waveform may be displayed on the provisional waveform display unit WD in a thumbnail format or the like.

  When displaying a waveform in the edit waveform display area, it is necessary to make settings so that the displayed waveform can be edited. The display waveform file is edited and the displayed waveform file is edited. A process for setting to a ready state is also executed. On the other hand, when displaying a waveform on the temporary waveform display section, the displayed waveform is not edited and only the display needs to be performed. Good. Due to these differences, the process for switching the display of the temporary waveform display unit is a process related to the CPU 1 and the like, rather than the process for switching the display of the edited waveform display unit (conventional waveform display). The burden of is heavy. As a result, the process of updating the waveform display of the temporary waveform display unit can be performed faster than the update of the waveform display of the edited waveform display unit.

  If it is determined that no candidate has been selected from the presented format candidates (NO in step S6), it is determined whether or not the waveform file has been read (step S9). That is, it is determined whether or not the confirmation button KB (see FIG. 2) on the “format designation screen” has been operated. If it is determined that the waveform file has been read by operating the confirm button (YES in step S9), the entire waveform file is read from the storage means in the selected format (step S10). In accordance with the reading of the entire waveform file in steps S5 and S10, the “format designation screen” being displayed on the display is closed, and GUI editing based on the read waveform file in the predetermined display area of the “waveform editing screen” Display the waveform for That is, after finishing the “waveform reading process”, the process returns to the “waveform editing process”, and immediately, the display of the edited waveform display section in the “waveform editing screen” is displayed in the final format. Switch to the waveform based on.

  As described above, when a waveform file whose format is unknown is selected, the format for correctly reading the waveform file from the storage means can be specified without error from a number of formats determined in advance by the user. Therefore, a “format designation screen” FG is displayed on the display unit 5A as a separate screen from the “waveform editing screen” EG as an auxiliary screen for format designation. In the “format designation screen” FG, the waveform of a part of the waveform file read based on the designated format is displayed on the temporary waveform display unit WD, and the waveform of the temporary waveform display unit WD is displayed. The display is appropriately switched according to the format selection. That is, without displaying a plurality of screens on the display unit 5A according to format designation as in the past, provisional waveform display in the “format designation screen” FG, which is one screen (same screen) according to format designation. Only the waveform of the part WD is switched and displayed. As a result, until the user correctly reads the waveform file from the storage means whose format is unknown, the user can specify the format and confirm the waveform displayed in the dedicated screen that is opened each time. Specify the waveform display in one “format setting screen” FG that switches according to the format specification without having to do the troublesome task of closing the dedicated screen on which the abnormal waveform is displayed before specifying Therefore, it is possible to easily and quickly specify a format for correctly reading a waveform file from a waveform file whose format is unknown.

  In addition, since only a part of the waveform file waveform is switched and displayed in the same screen, the processing time for switching the display takes less time than switching the entire screen, and the processing time for waveform display is reduced. Thus, the waveform display can be switched quickly according to the format selection. Therefore, there is also an advantage that the user can quickly select a format appropriately from a large number of format candidates and check the display.

When the waveform file is musical tone control information such as MIDI data, the waveform based on the waveform file displayed on the format designation screen FG is the waveform based on the waveform data stored in the waveform ROM or the like referenced according to the musical tone control information. Needless to say.
Note that the “format designation screen” shown in FIG. 2 (particularly, the format designation selection section, provisional waveform display section, and confirm button) may be always displayed instead of the pop-up screen, and the waveform editing screen may be partly format designated. There is a method of permanently setting a selection part, a provisional waveform display part and a confirmation button.

1 is a hardware configuration block diagram showing an overall configuration of a waveform editing apparatus according to the present invention. It is the conceptual diagram which showed one Example of the format designation | designated screen. It is the flowchart which showed one Example of the waveform reading process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... CPU, 2 ... ROM, 3 ... RAM, 4 ... Detection circuit, 4A ... Operator, 5 ... Display circuit, 5A ... Display part, 6 ... Sound source circuit, 6A ... Sound system, 7 ... Communication interface, 7A ... external device, 1D ... communication bus, EG ... waveform editing screen, FG ... format designation screen, TS ... format type input section, AS ... format information input section, WD ...・ Temporary waveform display area, KB ... Confirm button, P ... Pointer

Claims (4)

A waveform editing device that performs data editing of a waveform file corresponding to the waveform stored in the storage means in response to operating the waveform displayed in the edited waveform display unit,
A waveform file selection means for selecting a waveform file;
First waveform display means for displaying the data of the selected waveform file as a waveform on the edited waveform display section;
A presentation means for presenting various file formats;
File format selection means for selecting one file format from the various file formats presented;
In accordance with the selected file format, second waveform display means for displaying the data of the selected waveform file as a temporary waveform on the temporary waveform display unit;
Waveform editing comprising control means for controlling to appropriately switch only the temporary waveform display in the temporary waveform display unit without switching the waveform display in the edited waveform display unit each time the file format is selected apparatus.   The second waveform display means reads a part of the data of the selected waveform file from the storage means according to the selected file format, and displays a partial waveform based on a part of the data of the read waveform file. The waveform editing apparatus according to claim 1, wherein the waveform editing apparatus displays the temporary waveform as a temporary waveform. Further comprising a confirmation means for confirming the file format,
The first waveform display means reads data of the selected waveform file from the storage means according to the determined file format, and displays all waveforms based on the read waveform file data on the edited waveform display section. The waveform editing apparatus according to claim 1 or 2, characterized in that On the computer,
The procedure to select the waveform file,
The data of the selected waveform file is displayed as a waveform on the edit waveform display unit that performs data editing of the waveform file corresponding to the waveform stored in the storage means in response to the operation of the displayed waveform. Procedure and
Procedures for presenting various file formats,
Selecting one file format from the various file formats presented;
According to the selected file format, the procedure for displaying the data of the selected waveform file as a temporary waveform on the temporary waveform display unit and the waveform display in the edited waveform display unit are switched each time the file format is selected. And a procedure for performing control so as to appropriately switch only the temporary display of the waveform in the temporary waveform display unit.

Images