JP4205782B2 - Waveform processing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a waveform processing apparatus that processes a waveform by processing waveform data representing an input waveform.
[0002]
[Prior art]
Conventionally, a companding rate for compressing or expanding a waveform representing a musical sound in the time axis direction is set, and a time companding process for compressing or expanding the waveform in the time axis direction is performed according to the set companding rate. 2. Description of the Related Art A waveform processing device that generates a musical sound based on a waveform subjected to a drawing process is known.
Also, a pitch that converts the input musical sound into a digital signal, writes the data of the signal sequentially into the memory at a constant speed, and reads out the data at a speed corresponding to the pitch preset by the user when reading it from the memory. There is also known a waveform processing apparatus that generates a musical tone by changing the frequency of an inputted musical tone by performing a shift processing process.
There is also a waveform processing device that performs an effect processing process that gives effects such as echo and chorus to the input musical sound by an operation amount set in advance by operating the operation element, and generates a musical sound that has been subjected to the effect processing process. Are known.
[0003]
[Problems to be solved by the invention]
In various waveform processing apparatuses as described above, when time-stretching processing processing, pitch shift processing processing, effect processing processing, etc. (hereinafter collectively referred to as “processing processing”) are performed with high accuracy, This results in a long processing time. For this reason, when the user confirms the processing result, there is a problem that the user has to wait for a long time until the processing ends. In particular, when the waveform itself is for a long time, the time required for the processing process becomes longer, so that the waiting time of the user is further increased.
To solve such problems, even when the processing is in progress, when the user wants to confirm, press the playback button to play back the waveform portion where the processing has been completed, and stop playback there. It is possible to do. However, in this case, although the waveform portion for which the processing has been completed can be confirmed, there arises a problem that the processing result of the entire waveform cannot be confirmed.
[0004]
Therefore, apart from the high-precision processing that is supposed to be performed, a high-speed processing that can be processed in real time is prepared, which is a processing that is less accurate than the high-precision processing, although the sound quality of the musical sound is reduced. If you press the preview button provided to execute high-speed machining processing, even if high-precision machining processing is in progress, the machining processing is interrupted, and high-speed machining processing is performed from the beginning. For the time being, a waveform processing apparatus has been proposed that allows a user to immediately listen to a preview as a preview. However, in this case, the user determines whether or not the waveform processing has been completed. If it is determined that the waveform processing has been completed, the user presses the play button, and the waveform processing is still complete. If it is determined that the button has not been pressed, it is necessary to use two buttons, ie, a playback button and a preview button, such as pressing a preview button.
In view of the above circumstances, an object of the present invention is to provide a waveform processing apparatus that can confirm a processing result with as high accuracy as possible and has excellent operability.
[0005]
[Means for Solving the Problems]
The waveform processing apparatus of the present invention that achieves the above-described object provides:
(1) Storage means for storing waveform data representing a waveform
(2) Setting means for setting parameters for processing waveform data
(3) First waveform processing means for processing the waveform data stored in the storage means according to the parameters set by the setting means
(4) Second waveform processing means for processing the waveform data stored in the storage means at a higher speed than the processing speed of the waveform data by the first waveform processing means in accordance with the parameters set by the setting means.
(5) Reproduction instruction means for instructing reproduction of a waveform based on processed waveform data
(6) A waveform based on the waveform data processed by the first waveform processing means in response to the progress of processing of the waveform data by the first waveform processing means in response to the waveform playback instruction by the playback instruction means; Alternatively, waveform reproducing means for reproducing a waveform based on the waveform data processed by the second waveform processing means
It is provided with.
[0006]
Since the waveform processing apparatus of the present invention has the above-described configuration, when the waveform reproduction instruction is received from the reproduction instruction unit, for example, when the waveform processing process is finished, the waveform processing apparatus is processed with high accuracy by the first waveform processing unit. The entire waveform based on the waveform data is immediately reproduced, and when the waveform processing is not completed, the entire waveform based on the waveform data processed at high speed by the second waveform processing means can be immediately reproduced. Alternatively, in the case of an apparatus that can execute waveform reproduction and high-precision waveform processing at the same time, even if high-precision waveform processing is not completed, the waveform processing process ends at the time of waveform reproduction. When there is a waveform reproduction instruction, a waveform based on waveform data processed with high accuracy may be reproduced. Therefore, as in the prior art, the user determines whether or not the waveform processing has been completed. If the waveform processing has been completed, the user presses the play button and the waveform processing has not been completed. In this case, there is no need for the user to make a determination, such as pressing the preview button, or the use of two buttons, ie, a playback button and a preview button, and operability is improved.
[0007]
Here, the waveform reproduction means receives the waveform reproduction instruction from the reproduction instruction means, and among the waveforms instructed to reproduce according to the progress of processing of the waveform data by the first waveform processing means, The waveform portion processed by the first waveform processing means is processed based on the waveform data processed by the first waveform processing means, and the waveform portions other than the waveform portion are processed by the second waveform processing means. It is effective to reproduce the waveform based on the waveform data.
With such a waveform reproducing means, the waveform portion processed by the first waveform processing means is reproduced based on the waveform data processed by the first waveform processing means, and the remaining portions excluding the waveform portion are reproduced. As for the waveform portion, when the waveform is reproduced based on the waveform data processed by the second waveform processing means, the waveform is processed when the user desires confirmation even if the waveform data is being processed and reproduced. It is possible to immediately know the processing result with high accuracy for the portion and the outline of the processing result for the remaining waveform portion.
[0008]
Here, in the waveform processing apparatus of the present invention, typically, the setting means sets, as the parameter, a companding rate for compressing or expanding the waveform in the time axis direction. The two waveform processing means can be applied to one that performs time-stretching processing that compresses or expands the waveform in the time axis direction in accordance with the compression ratio set by the setting means.
The first waveform processing means preferably starts processing the waveform data stored in the storage means due to the setting of the parameter by the setting means.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described.
FIG. 1 is a block diagram showing a circuit configuration of a waveform processing apparatus according to an embodiment of the present invention.
The waveform processing apparatus 100 shown in FIG. 1 includes a ROM 11, a RAM 12, a CPU 13, a display 14, an operator group 15, a D / A converter 16, and an A / D converter 17. The ROM 11, RAM 12, CPU 13, display 14, operator group 15, D / A converter 16, and A / D converter 17 are connected to each other via a bus 18.
The ROM 11 stores a program for controlling the entire waveform processing apparatus 100 shown in FIG. 1, a program for performing a time companding process for compressing or expanding a waveform representing a musical sound in the time axis direction, and the like. ing.
[0010]
The RAM 12 is an example of a storage unit according to the present invention, and data (variables) necessary for executing the above-described program and the like are temporarily stored in the RAM 12. Also, original waveform data obtained by recording and processed waveform data obtained by time-stretching a waveform based on the waveform data are also stored. The RAM 12 is also used as a work memory necessary for executing the time-stretching processing.
Based on the program stored in the ROM 11, the CPU 13 performs time-stretching on the original waveform data stored in the RAM 12 in accordance with the set compression ratio (an example of the first waveform processing means according to the present invention). Or the original waveform data stored in the RAM 12 in accordance with the set compression ratio is time-compressed at a speed higher than the processing speed of the waveform data by the first waveform processing means (the second compression referred to in the present invention). An example of waveform processing means) or other necessary processing.
[0011]
The display 14 displays the companding rate and the like.
Although details will be described later, the operator group 15 has a plurality of switches, and by operating these switches, the compression ratio is set, the time companding process, the recording of the musical sound, the waveform, etc. Is played.
The D / A converter 16 has a built-in buffer memory that temporarily stores waveform data, and stores the processed waveform data read from the RAM 12 based on the set companding rate in the buffer memory, The waveform data is sequentially extracted from the buffer memory, D / A converted, and an analog signal is output. The output analog signal is input to a sound source (not shown) and emitted into the air.
The A / D converter 17 A / D converts an analog signal representing a musical sound input from the outside for recording and generates original waveform data. The generated original waveform data is stored in the RAM 12.
[0012]
FIG. 2 is a diagram showing a panel provided with the display and the operator group shown in FIG.
In the panel 20 shown in FIG. The display unit 14 includes a compression rate E for compressing or expanding the waveform in the time axis direction as a parameter for processing the original waveform data. _xst (120% here) is displayed. The operator group 15 includes a companding rate decrease switch 151, a companding rate increase switch 152, a recording start switch 153, and a reproduction start switch 154.
[0013]
Each time the companding rate decrease switch 151 is pressed, the companding rate E _xst Each time the companding rate increase switch 152 is pressed, the companding rate E _xst Is incremented. Decrement or incremented companding rate E _xst Is displayed on the display 14. The companding rate decrease switch 151 and the companding rate increase switch 152 are examples of setting means referred to in the present invention, and the desired companding rate E is operated by operating the companding rate decreasing switch 151 and the companding rate increasing switch 152. _xst Set.
The recording start switch 153 is a switch for starting recording of a musical sound input from the outside.
The reproduction start switch 154 is an example of a reproduction instruction unit according to the present invention, and is a switch for starting reproduction of a waveform based on processed waveform data stored in the RAM 12.
The user obtains a desired reproduced waveform by performing time companding processing on the waveform representing the input musical sound in the following procedure.
[0014]
(1) First, the recording start switch 153 is pressed. Then, recording of the musical sound is started, and an analog signal representing the musical sound is converted into original waveform data by the A / D converter 17 and stored in the RAM 12. After a predetermined time has elapsed, the recording of the musical sound is terminated.
(2) Next, the companding rate decrease switch 151 or the companding rate increase switch 152 is pressed to obtain a desired companding rate E. _xst Set. Drawing ratio E _xst At the time when is set, _xst Based on the above, the time drawing process is started with high accuracy.
(3) The user presses the regeneration start switch 154 when he / she wants to confirm the result of the time-stretching processing in the middle of the time-stretching processing performed with high accuracy. Then, in response to the pressing of the playback start switch 154, the waveform portion of the waveform to be reproduced that has been subjected to the time companding process performed with high accuracy is the waveform that has been subjected to the time companding process with high accuracy. A waveform is reproduced via the D / A converter 16 based on the data. In addition, the waveform portion excluding the waveform portion for which the time-drawing process has been completed is time-drawn at a speed higher than the speed of the time-drawing process performed with high accuracy, and based on the time-drawn waveform data. Then, the waveform is reproduced via the D / A converter 16. The details of the time drawing process performed with high accuracy and the time drawing process performed at high speed will be described later.
[0015]
(4) The user obtains a desired reproduction waveform by repeating the operations (2) and (3) when the user judges that the musical sound represented by the reproduced waveform is not the desired musical sound as a result of trial listening.
When the time drawing process is completed with high accuracy for the entire waveform, a message to that effect is displayed on the display 14.
FIG. 3 is a flowchart of a main routine of a program executed by the waveform processing apparatus shown in FIG.
When the waveform processing apparatus 100 shown in FIG. 1 is turned on, the main routine shown in FIG. 3 is started.
Here, the flag EFlag shown in step S11 is a flag related to the high-precision time-stretching processing, and when this flag EFlag is “0”, it indicates that the high-precision time-stretching processing is not required. In addition, when the flag EFlag is “1”, it indicates that a highly accurate time-stretching process is required, and when this flag EFlag is “2”, a highly accurate time-stretching process is executed. Indicates that it is inside.
[0016]
First, in step S11, the flag EFlag is set to “0”. Next, in step S12, the draw ratio E _xst It is determined whether or not has been changed. Drawing ratio E _xst If it is determined that the change has been made, the changed companding rate E _xst Therefore, it is necessary to perform the time drawing process with high accuracy, and the process proceeds to step S13. In step S13, the flag EFlag is set to “1” and the process proceeds to step S14. On the other hand, in step S12, the draw ratio E _xst If it is determined that has not been changed, the process directly proceeds to step S14.
In step S14, it is determined whether or not the reproduction start switch 154 has been pressed. If it is determined that the reproduction start switch 154 has been pressed, an instruction to start waveform reproduction has been given, and the process proceeds to step S15. A waveform reproduction processing routine described later is executed, and the process proceeds to step S16. On the other hand, if it is determined that the playback start switch 154 has not been pressed, the process proceeds directly to step S16.
[0017]
In step S16, it is determined whether or not the recording start switch 153 is pressed. If it is determined that the recording start switch 153 has been pressed, an instruction to start recording of a musical sound is given, so that the process proceeds to step S17, and the flag EFlag is set to “0”. In step S18, recording processing is performed. In this recording process, an analog signal representing the input musical sound is converted into original waveform data by the A / D converter 17 and stored in the RAM 12. Then, it returns to step S12. On the other hand, if it is determined in step S16 that the recording start switch 153 has not been pressed, the process directly returns to step S12.
FIG. 4 is a flowchart of a timer interrupt routine for performing the time drawing process with high accuracy.
This timer interrupt routine is started by an interrupt signal repeatedly generated every predetermined time by a timer (not shown), and is periodically executed by interrupting the execution of the main routine described above.
[0018]
First, in step S21, it is determined whether or not the flag EFlag is “0”. If it is determined that the flag EFlag is “0”, no high-precision time-stretching processing is required, so nothing is done and the routine is exited. On the other hand, if it is determined that the flag EFlag is not “0”, the process proceeds to step S22 because the flag EFlag is “1” or “2”.
In step S22, it is determined whether the flag EFlag is “1” or “2”. If it is determined that the flag EFlag is “1”, a highly accurate time-stretching process is required, and the process proceeds to step S23. In step S23, the following initialization process is performed. First, the waveform is divided into predetermined lengths by dividing the waveform into a predetermined length by the address of the original waveform data stored in the RAM 12, and the waveform is divided into blocks. A highly accurate time drawing process is performed for each of the divided blocks. Also, the count address CADRS indicating the head address of the block currently being processed, which is currently being processed with high accuracy, is initialized to “0”. Further, the flag EFlag is set to “2”, and the process proceeds to step S24. On the other hand, if it is determined in step S22 that the flag EFlag is “2”, the process proceeds to step 24 as it is because a highly accurate time-stretching process is being executed.
[0019]
In step S24, highly accurate calculation described later is performed for one block. Thereby, a highly accurate time drawing process is performed. Further, in order to update the count address CADRS, the address amount for one block is added to the count address CADRS, and the process proceeds to step S25. In step S25, it is determined whether or not the count address CADRS has reached the final address ENDADRS of the entire waveform data. If it is determined that the count address CADRS has reached the final address ENDADRS, high-precision calculation has been completed over the entire waveform data, so the process proceeds to step S26 and the flag EFlag is set to '0' and this routine is terminated. To do. On the other hand, if it is determined in step S25 that the count address CADRS has not reached the final address ENDADRS, this routine is terminated as it is, but when a timer interrupt occurs next time, this timer interrupt routine is started again. Then, a highly accurate time drawing process is performed for the next one block following the one block.
[0020]
FIG. 5 is a waveform diagram showing an example of high-precision calculation for one block (step S24) in the timer interrupt routine shown in FIG.
First, the original waveform data for one block designated by the count address CADRS is read from the RAM 12, and the waveform for one block shown in FIG. 5A is obtained based on this waveform data.
Next, the waveform for one block is converted into a signal component distribution on the frequency axis by FFT (Fast Fourier Transform) to obtain a signal component shown in FIG.
Further, the signal component shown in FIG. _xst Shifts (pitch shift) on the frequency axis by the same ratio as. As a result, the frequency of each signal component becomes its companding rate E. _xst (For example, the draw ratio E _xst Is 200%, twice the draw ratio E _xst Is obtained on the frequency axis (FIG. 5 (c)). 5B and 5C show the frequency distribution with the frequency axis as a logarithmic axis.
[0021]
Next, the signal component on the frequency axis shown in FIG. 5 (c) is returned to the waveform on the time axis by inverse FFT to obtain the waveform shown in FIG. 5 (d). The waveform shown in FIG. 5D is the same time as the waveform for one block shown in FIG. _xst It is a multiple corresponding to. In this way, time companding processing is performed with high accuracy for one block of the waveform representing the recorded musical sound.
Furthermore, the waveform data for one block shown in FIG. 5A stored in the RAM 12 is the waveform data for one block that has been subjected to the time-stretching processing with high accuracy, as shown in FIG. Update. The waveform data updated in this way and stored in the RAM 12 is the companding rate E _xst Are read at a reading speed that is a reciprocal of a multiple corresponding to. Then, here, as shown in FIG. 5 (e), at a frequency before the high-precision time-drawing processing, the drawing ratio E _xst Correspondingly, a waveform expanded in the time axis direction is reproduced.
FIG. 6 is a flowchart of the waveform reproduction processing routine shown in FIG.
[0022]
First, in step S31, as in the initialization process in the timer interrupt routine shown in FIG. 4, the entire waveform is divided into blocks, and the reproduction address PADRS indicating the head address of the block currently being reproduced is set to “0”. Initialize to. Next, in step S32, it is determined whether or not the reproduction address PADRS is equal to or less than the count address CADRS. When it is determined that the reproduction address PADRS is equal to or less than the count address CADRS, since the high-precision calculation has already been completed for the block to be reproduced from now on, the process proceeds to step S33 and reproduction processing 1 is performed. In this reproduction process 1, the waveform data for one block having the reproduction address PADRS as the head address is converted into the compression rate E as described with reference to FIG. _xst Is read at a reading speed of the reciprocal of the multiple corresponding to. By reading out in this way, the waveform data frequency-converted by high-accuracy calculation, the frequency returns to the frequency before the time companding processing, and at the same time the reproduction time companding rate E _xst It becomes the length according to. The read waveform data for one block is output to the D / A converter 16. If there is no room for accommodating one block of waveform data in the buffer memory of the D / A converter 16, wait until the conversion process of the D / A converter 16 proceeds and there is enough space in the buffer memory. To output waveform data.
[0023]
On the other hand, if it is determined in step S32 that the reproduction address PADRS is greater than the count address CADRS, the block to be reproduced from now on has not yet finished high-precision calculation, so the process proceeds to step S34 and 1 as described later. The waveform data for the block is calculated at high speed, and the reproduction process 2 is performed in step S35. In this reproduction process 2, the waveform data for one block calculated at high speed is output to the D / A converter 16, and the process proceeds to step S36. If the buffer memory of the D / A converter 16 has no space for storing one block of waveform data, the waveform data is output after the buffer memory has sufficient space as described above.
In step S36, since the reproduction of the waveform data for one block is completed, in order to update the reproduction address PADRS, the address amount for one block is added to the reproduction address PADRS, and the process proceeds to step S37.
[0024]
In step S37, it is determined whether or not the reproduction address PADRS has reached the final address ENDADRS of the entire waveform data. If it is determined that the reproduction address PADRS has reached the final address ENDADRS, the reproduction is completed over the entire waveform data, and thus this routine ends. On the other hand, if it is determined in step S37 that the reproduction address PADRS has not reached the final address ENDADRS, reproduction has not yet been completed over the entire waveform data, so the process returns to step S32 and the waveform data is stored as described above. High precision calculation or high speed calculation is performed and output to the D / A converter 16.
FIG. 7 is a diagram showing an example of high speed calculation (step S34) for one block in the waveform reproduction processing routine shown in FIG.
First, referring to FIG. _xst A high-speed calculation for one block when the multiple corresponding to (exst) is greater than 1 will be described.
[0025]
FIG. 7A shows the drawing ratio E. _xst FIG. 6 is a diagram for explaining high-speed calculation for one block when a multiple (exst) corresponding to 1 is greater than 1. FIG. FIG. 7A shows a block A for one block including addresses from the start address S_ADRS to the final address E_ADRS. This block A is stretched at high speed as follows.
First, an address D_ADRS returned by the length of the block A × (exst−1) is calculated from the final address E_ADRS of the block A. Here, the address D_ADRS is
D_ADRS = E_ADRS− (E_ADRS−S_ADRS) × (exst−1)
It is expressed. Next, the block A is sequentially read from the head address S_ADRS to the final address E_ADRS, and further read out redundantly from the address D_ADRS to the final address E_ADRS. That is, the block A is processed at a high speed by adding a block B composed of addresses from the address D_ADRS to the final address E_ADRS.
[0026]
Next, with reference to FIG. _xst The high-speed calculation for one block when the multiple (exst) corresponding to 1 is 1 or less will be described.
FIG. 7B shows the drawing ratio E. _xst FIG. 6 is a diagram for explaining high-speed calculation for one block when a multiple (exst) corresponding to 1 is 1 or less. FIG. 7B shows a block A for one block composed of addresses from the start address S_ADRS to the final address E_ADRS, and this block A is subjected to compression processing at high speed as follows.
First, an address K_ADRS that is returned by the length of the block A × (1-exst) is calculated from the final address E_ADRS of the block A. Here, the address K_ADRS is
K_ADRS = E_ADRS− (E_ADRS−S_ADRS) × (1-exst)
It is expressed. Next, compression is performed by sequentially reading from the start address S_ADRS of the block A to the calculated address K_ADRS. That is, compression processing is performed at high speed by skipping reading from the address K_ADRS to the final address E_ADRS.
[0027]
If the CPU 13 has sufficient computing power, the connection between the block A and the block B shown in FIG. 7A, the address K_ADRS of the block A shown in FIG. If the crossfading process is performed in the vicinity of a discontinuous point such as a joint with the head address, the tone quality of the musical tone can be improved.
In this embodiment, among the reproduced waveforms, the waveform portion for which the time companding process performed with high accuracy is completed is reproduced based on the waveform data subjected to the time companding process with high accuracy. For the remaining waveform portions excluding the waveform portion, the waveform was reproduced based on the waveform data that was time-stretched at high speed. However, the present invention is not limited to this, and the waveform processing apparatus of the present invention is highly accurate. As an alternative, depending on the progress of the time drawing process, the waveform is reproduced based on the waveform data that has been time-drawn with high accuracy or the waveform data that has been time-drawn at high speed. If it is. For example, when reproducing a waveform, if the time companding process performed with high accuracy has been completed, the entire waveform is reproduced based on the waveform data subjected to the time companding process with high accuracy, and performed with high accuracy. When the time drawing process is not completed, the entire waveform may be reproduced based on the waveform data subjected to the time drawing process at high speed.
[0028]
Further, in the present embodiment, the example of the time companding process for compressing or expanding the waveform representing the musical sound in the time axis direction has been described, but the present invention is not limited to this, and the waveform processing apparatus of the present invention can generate the musical sound. Pitch shift processing that changes the frequency (pitch) of the waveform that is represented, or effect processing that gives an effect (effect) such as echo or chorus to the musical sound may be used.
[0029]
【The invention's effect】
As described above, according to the present invention, it is possible to provide a waveform processing apparatus that can confirm a processing result with as high accuracy as possible and that is excellent in operability.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a circuit configuration of a waveform processing apparatus according to an embodiment of the present invention.
FIG. 2 is a diagram showing details of the display and the operator group shown in FIG. 1;
FIG. 3 is a flowchart of a main routine of a program executed by the waveform processing apparatus shown in FIG.
FIG. 4 is a flowchart of a timer interrupt routine for performing time-stretching processing with high accuracy.
FIG. 5 is a waveform diagram showing an example of high-accuracy calculation (step S24) for one block in the timer interrupt routine shown in FIG.
6 is a flowchart of a waveform reproduction processing routine shown in FIG.
7 is a diagram showing an example of high speed calculation (step S34) for one block in the waveform reproduction processing routine shown in FIG. 6; FIG.
[Explanation of symbols]
11 ROM
12 RAM
13 CPU
14 Display
15 controls
16 D / A converter
17 A / D converter
18 Bus
20 panels
100 Waveform processing device
151 Compressibility increase switch
152 companding reduction switch
153 Recording start switch
154 Playback start switch

Claims (3)

Storage means for storing waveform data representing the waveform;
Setting means for setting parameters for processing waveform data;
First waveform processing means for processing the waveform data stored in the storage means in accordance with the parameters set by the setting means;
Second waveform processing means for processing the waveform data stored in the storage means at a higher speed and with lower accuracy than the processing of the waveform data by the first waveform processing means according to the parameters set by the setting means;
Reproduction instruction means for instructing reproduction of a waveform based on the processed waveform data;
When the reproduction instructing unit is instructed to reproduce the waveform, among the waveforms instructed to be reproduced, the waveform portion that has been processed by the first waveform processing unit is processed by the first waveform processing unit. And a waveform reproducing means for reproducing a waveform based on the waveform data processed by the second waveform processing means for the waveform portion excluding the waveform portion. Waveform processing device. The setting means sets, as the parameter, a companding rate for compressing or expanding the waveform in the time axis direction,
2. The first and second waveform processing means perform time companding processing for compressing or expanding a waveform in a time axis direction in accordance with a companding rate set by the setting means. The waveform processing apparatus described.   The said 1st waveform processing means starts processing of the waveform data memorize | stored in the said memory | storage means due to the parameter being set by the said setting means. Waveform processing device.

Images