JP2532231Y2 - Electronic musical instrument with touch response function - Google Patents

Description

[Detailed description of the invention] [Technical field of the invention] The present invention relates to a key pressing speed for operating means such as a keyboard and a string,
The present invention relates to an electronic musical instrument with a touch response function capable of reflecting a touch mode such as a string strength in a musical tone.

[Prior art and its problems] Conventionally, a plurality of tone waveform generators output tone waveforms having the same waveform (same spectrum), and synthesize and emit the tone to add thickness to the ensemble. There is known an electronic musical instrument that achieves a strategic effect. Also,
In such an electronic musical instrument, each tone waveform from the plurality of tone waveform generators is modified using touch response waveform data (hereinafter referred to as a touch curve) having a key pressing speed or the like as a parameter, and a key pressing speed is applied. There is known a touch panel having a touch response function of reflecting a sound or the like in a musical sound.

However, the touch curve has, for example, only one kind of curve rising to the right, and the change is scarce because the same touch response data is given to all the tone waveform generating units.

[Purpose of the invention] The invention was made based on the above circumstances, and the purpose of the invention is to provide a touch response function that can reflect a touch mode based on a plurality of touch curves in a musical sound. It is to provide an electronic musical instrument.

[Invention Requirements] In order to achieve the above object, the present invention provides an electronic musical instrument that emits a musical sound by synthesizing a plurality of musical sound waveform data respectively generated from a plurality of musical sound waveform generators. It is characterized in that a curve is stored and each touch curve is designated for each musical tone waveform generator.

[Operation and Development of the Invention] In the invention, the same touch curve, for example, a touch curve rising to the right is not given to each musical tone waveform generating unit, but a different type of touch curve such as a rising curve to the left and a curve falling to the right is used. Given to the musical sound waveform. Therefore, for example, the touch response data based on the key pressing speed given to each musical tone waveform generating unit is different from each other, and the manner of reflecting the touch mode to the musical tone waveform from each musical tone waveform generating unit is very varied. Be rich.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

<Overall Configuration> FIG. 1 is an overall configuration diagram of an electronic musical instrument with a touch response function according to an embodiment of the present invention, and this embodiment is an example applied to a keyboard-type synthesizer.

The synthesizer creates a tone waveform in the tone generator 3 under the control of the CPU 2 according to a program stored in the program memory 1 in advance, converts the tone waveform into an acoustic signal in the sound system 4, and emits the sound. Output. When creating a musical tone waveform, various musical tone parameters that are edited and input by the operation unit 5 and stored in the tone color memory 6 are used. The operation unit 5 is mounted on the operation panel surface 50 shown in FIG. 2, and has a rotation-switching mode switch SW1 and a parameter selection switch SW2. Then, for example, a mode No. “00” is inputted by the mode changeover switch SW1, and the parameter selection switch SW
When the parameter (data) “00” is input by the step 2, the digital oscillator DCO (Digital Controlled Os
A sawtooth wave is selected as the output waveform of the cilator. At this time, the operation contents of the mode changeover switch SW1 and the parameter selection switch SW2 are displayed on the first display section DP1 shown in FIG. Further, a group of data for forming a musical tone composed of the mode data from the mode changeover switch SW1 and the parameters from the parameter selection switch SW2 is temporarily stored in a predetermined register in the working memory 9, A tone name is assigned by operating a key and stored in the tone memory 6. FIG. 3 shows an example of the data. As shown in FIG. 3, the timbre memory 6 usually has parameters for the timbre envelope (mode Nos. 04 to 07) and parameters for the volume envelope (modes Nos. 20 to 2).
3) is stored.

The tone generator 3 has four digital oscillators DCO1 to DCO1 to
These are configured to be able to simultaneously output musical tone waveform data of the same spectrum such as a sawtooth wave. In addition, these four digital oscillators DC
For O1 to O4, different volume touch curves are designated, and their sensitivities or levels can be designated. That is, as shown in FIG. 2, the operation unit 5 includes a curve key K1, a level key K2, and four up keys.
It has a KU, a down key KD, and a second display section DP2.
The second display unit DP2 includes four digital oscillators DCO1 to DCO4.
In response to the above, four pairs of two-digit one-piece "day" shaped liquid crystal elements are provided.
Numerical values from 0 to 9 are displayed in each digit. Then, as shown in FIG. 4, the display content of the left digit in each group indicates the type of the volume touch curve, and the display content of the right digit is the volume touch curve displayed in the left digit. The sensitivity or level for These display contents specify the mode of changing the sensitivity or level with the curve key K1 and the level key K2, set the numerical value from 00 to 99 by operating the up key KU and the down key KD, and set each digital oscillator CDO1 to 4 , A touch curve for volume, its sensitivity or level.

The keyboard 7 instructs sound generation and gives pitch data. The pitch data determines the frequency of the musical tone waveform from the musical tone generator 3 and specifies the pitch. The key pressing speed of the keyboard 7 is controlled by the touch data generator 8.
, And is output to the tone generation unit 3 as touch data. Then, the tone generation unit 3 reflects the key pressing speed on the volume and tone.

<Structure of Music Tone Creation Unit 3> FIG.
In addition to the above-described four digital oscillators DCO1 to DCO4, a volume envelope creating section 31 for creating a volume envelope, a tone envelope creating section 32 for creating a tone envelope, and a volume touch curve for reflecting a key pressing speed to the volume. , And a timbre touch curve memory 34 that stores a plurality of timbre touch curves for reflecting the key press speed on the timbre.

The tone generator 3 also has four dedicated memories 35- specially holding the volume touch curves designated for the digital oscillators DCO1 to DCO4 in one-to-one correspondence with the digital oscillators DCO1 to DCO4. 1 to 4. The volume envelope created by the volume envelope creation unit 31 is modified based on the different volume touch curves in the dedicated memories 35-1 to 35-4, and the four volume envelopes reflecting the key-pressing speed are reflected. Is generated. The four sound volume envelopes control the amplitude values of the tone waveform data from the digital oscillators DCO1 to DCO4, that is, the sound volume. Then, the four tone waveform data whose volume is controlled in consideration of the key pressing speed are added by the adding unit 36, and the voltage control filter VC
The tone is controlled by F. This timbre control is performed by modifying the timbre envelope from the timbre envelope creation unit 32 by using the timbre touch curve from the timbre touch curve memory 34 to obtain a timbre envelope that reflects the key pressing speed. It is performed using. In addition, each dedicated memory
The sensitivity levels of the volume touch curves to be stored in 35-1 to 35-4 are individually set by the calculation unit 37.

<Operation of Musical Sound Creating Unit 3> Next, the operation of the musical sound creating unit 3 will be described.

Now, operate the curve key K1 and then the digital oscillator DC
Operate the up key KU and down key KD corresponding to O1,
It is assumed that “26” is designated as a numerical value corresponding to the digital oscillator DCO1 in the second display unit DP2. Then, the touch curve for volume corresponding to No. 2 is stored in the touch curve memory for volume.
It is read out from 33 and output to the operation unit 37. FIG. 6 shows the types of touch curves.

Further, the calculation unit 37 corrects the volume touch curve read from the volume touch curve memory 33 based on the designated sensitivity “6”, and outputs it to the selection unit 38. Then, the selection unit 38 displays the up key K operated at the time of specifying the waveform.
U and the down key KD recognize which digital oscillator DCO corresponds to, and store them in the dedicated memory 35 dedicated to the corresponding digital oscillator DCO. In the above example, since the up key KU and the down key KD corresponding to the digital oscillator DCO1 were operated, the dedicated memory 35 dedicated to the digital oscillator DCO1 was operated.
Store in -1.

In this way, when the up key KU and the down key KD corresponding to each digital oscillator DCO are sequentially operated, the sensitivity is set in the dedicated memory 35 dedicated to the digital oscillator DCO corresponding to the operated up key KU and down key KD. The stored volume touch curves are sequentially stored. The display contents of the first display unit DP1 are not erased even if the operation is shifted to the operation of the up key KU and the down key KD corresponding to another digital oscillator DCO, and the operation corresponding to the all digital oscillator DCO is performed. Is completed, the first display section DP1 simultaneously displays the contents specified for the all digital oscillator DCO. The order of specifying the waveform and sensitivity for each digital oscillator DCO is arbitrary.

Further, the sensitivity correction processing in the calculation unit 37 is, for example, uncorrected when the sensitivity is “0”, and is set so as to become a constant level MD as shown in FIG. 7 as the sensitivity value gradually increases. Calculate.

On the other hand, instead of the curve key K1, the level key K2 is operated, and the up key KU and the down key KD corresponding to the oscillator DCO1 are operated, and "34" is designated as a numerical value corresponding to the digital oscillator DCO1 in the second display portion DP2. Suppose you did. Then, No.
The volume touch curve corresponding to 3 is read from the volume touch curve memory 33 and output to the calculation unit 37. Further, based on the designated level “4”, the arithmetic unit 37 corrects the volume touch curve read from the volume touch curve memory 33 and outputs the corrected volume touch curve to the selection unit 38. The subsequent operation is the same as when the curve key K1 is operated. put it here,
When the level is “0”, the value of the touch curve gradually decreases as the level value gradually increases while maintaining the original touch curve, as shown in FIG. That is, the touch curve is translated downward.

After performing the operation of designating the touch curve for the volume to each digital oscillator DCO and the operation of correcting the sensitivity, the user designates the tone name and presses the keyboard 7 to obtain the digital oscillator DCO.
In O, a waveform designation parameter indicating the same spectrum waveform and the same pitch data are input under the control of the CPU 2. Then, each digital oscillator DCO outputs musical sound waveform data having the same spectrum and the same frequency, and inputs the data to the corresponding first multiplier 40. On the other hand, the volume envelope creating section 31 has the mode No. 20 shown in FIG.
The parameters for the volume envelope corresponding to ~ 23 are input. The volume envelope creating section 31 creates a volume envelope based on the parameters and inputs the envelope to the second multiplier 41 corresponding to each digital oscillator DCO.

When the keyboard 7 is depressed, the touching speed is detected by the touch data generator 8, and touch data indicating the keying speed is input to the decoder 39. The decoder 39 decodes the input touch data into address data, and outputs the address data to the tone color touch curve memory 34 and each dedicated memory 35. Then, from each dedicated memory 35, the peak value of the volume touch curve corresponding to the input address data,
That is, the touch response data shown on the vertical axis of the touch curve shown in FIG. 6 is read out and output to the corresponding second multiplier 41 for the digital oscillator DCO. Therefore, each second multiplier 41 multiplies the volume envelope from the volume envelope creation unit 31 by the peak value from the corresponding dedicated memory 35, that is, the above-described touch response data, and sets the keying speed on the volume envelope. The volume envelope that reflects the key depression speed is output to each corresponding first multiplier 40. In response, each first multiplier 40 multiplies the tone waveform data from each digital oscillator DCO by the above-mentioned volume envelope, and takes the amplitude of the tone waveform data from each digital oscillator DCO in a form that takes into account the key pressing speed. The value, that is, the volume is controlled and output to the adding unit 36. In this case, the peak value read from each dedicated memory 35 read in accordance with the key pressing speed, that is, the above-described touch response data is based on a specific volume touch curve designated for each digital oscillator DCO, In addition, each digital oscillator DC
The volume of the music corresponding to O is also varied. Next, the tone waveform data from each first multiplier 40 is added in the adder 36, converted into an analog signal in the first D / A converter 42, and output to the voltage control filter VCF.

On the other hand, when the timbre name is specified, the timbre envelope creation unit 32 controls the mode shown in FIG.
The parameters for the tone envelope corresponding to Nos. 04 to 07 are input, and the mode N is stored in the touch curve memory 34 for the tone.
A parameter for sensitivity corresponding to o.08 is input. In response to this, the timbre envelope creator 32 creates a timbre envelope based on the input parameters and outputs it to the third multiplier 43. On the other hand, touch curve memory for tone 34
Selects a tone color touch curve corresponding to the sensitivity parameter, reads a peak value corresponding to the address data in the selected tone color touch curve, that is, touch response data, and outputs the read response value to the third multiplier 43 Is done. And the third
The multiplier 43 includes a timbre envelope from the timbre envelope creation unit 32 and a peak value from the timbre touch curve memory 34,
That is, the key response speed is multiplied by the touch response data, the key pressing speed is reflected on the tone color envelope, and the tone color envelope reflecting the key pressing speed is output to the second D / A converter 44. Then, the tone color envelope is converted into an analog signal by the second D / A converter 44 and output to the voltage control filter VCF. Therefore, the voltage control filter VCF controls the spectrum of the musical tone waveform data from the adder 36, that is, the timbre, based on the timbre envelope from the second D / A converter 44, and outputs it to the sound system 4. In this manner, one of the plurality of tone color touch curves in the tone color touch curve memory 34 is selected, and the touch mode is reflected on the tone color based on the selected tone color touch curve. Therefore, even in the same touch mode, the timbre can be changed in various patterns by selecting a different timbre touch curve.

The present invention is not limited to the above-described embodiment, and can be applied to, for example, an electronic stringed musical instrument using a string as a sounding start instruction unit. In addition, the touch mode may be detected not only by the operation speed (key pressing speed) but also by a key pressing force, a string force, and the like.

[Effects of the Invention] As described in detail above, according to the present invention, a plurality of touch curves are stored, and each of the touch curves is designated for each musical tone waveform generator.
It is possible to realize an electronic musical instrument with a touch response specification capable of reflecting a touch mode in a musical tone based on a plurality of types of touch curves, and to obtain a variety of musical tones.

[Brief description of the drawings]

1 is an overall configuration diagram of an electronic musical instrument with a touch response function according to an embodiment of the present invention, FIG. 2 is a diagram showing a part of an operation unit in FIG. 1, FIG. 3, and FIG. FIG. 5 is a diagram for explaining the function of the tone generator shown in FIG.
FIG. 7 shows the type of the touch curve in the volume touch curve memory, FIG. 7 shows an example in which the touch curve varies depending on the sensitivity, and FIG. 8 shows an example in which the touch curve varies according to the level. 1 ... program memory, 2 ... CPU, 3 ... tone generator, 5 ... operation unit, 6 ... tone memory, 7 ... keyboard, 8
… Touch data generation unit, 31… Volume envelope creation unit, 32… Tone envelope creation unit, 33… Touch curve memory for volume, 34… Touch curve memory for tone, 38
... Selection section, 40... First multiplier, 41... Second multiplier, K1
…… Curve key, K2 …… Level key, KU …… Up key, KD …… Down key, DCO …… Digital oscillator.

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-61-172192 (JP, A) JP-A-59-105694 (JP, A) JP-A-58-211786 (JP, A) JP-A-58-1982 211785 (JP, A) Actually open sho 59-27599 (JP, U)

Claims (4)

(57) [Scope of request for utility model registration] A musical performance control for designating a pitch of a musical tone to be generated, and a plurality of musical tone signals for supporting generation of a musical tone of a designated pitch in response to operation of the musical performance control. Tone generation instruction means, touch data generation means for generating touch data corresponding to the operation mode of the performance operator, and a plurality of conversions for converting the touch data from the touch data generation means into different touch response characteristic data. Table means; designating means for designating the conversion table means independently corresponding to each of the musical tone generation instructing means; and a musical tone signal instructed to be generated by each of the musical tone generating and instructing means. Control means for controlling based on the touch response characteristic data from the conversion table means designated for each musical tone generation instructing means; Electronic musical instrument with touch response function, characterized in that the people tone signal husband and an addition means for outputting the sum of the respective tone generation instructing means has. 2. The utility model registration system according to claim 1, wherein said designation means includes first display means for displaying data indicating a conversion table designated for each of said tone generation instruction means. Electronic musical instrument with a touch response function as described. 3. The conversion table means includes setting means for setting sensitivity data, and variable means for changing the degree of conversion of the conversion table means based on the set sensitivity data. 2. The electronic musical instrument with a touch response function according to claim 1, wherein the utility model is registered. 4. The electronic musical instrument with a touch response function according to claim 3, wherein said setting means includes a second display means for displaying the set sensitivity data.