JP2573935Y2 - Effect adding device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an effect adding device for a musical instrument.

[0002]

2. Description of the Related Art Conventionally, in an electric stringed musical instrument such as an electric guitar, for example, in order to generate a distortion sound (hereinafter referred to as a distortion) which is a kind of effector, a configuration as shown in FIG. 6 or FIG. 7 is used. I have been.

That is, in the first conventional example shown in FIG. 6, a pair of pickups 61 each composed of a magnet and a pickup coil is used, and six strings (first strings to first strings) serving as sounding bodies are used.
The vibration of the sixth string) is collectively detected as an electric signal.
Then, a harmonic distortion or an intermodulation distortion component of the original waveform is added to the detected vibration output of the string by, for example, a distortion unit 62 having a clipping circuit for clipping a portion having a large waveform amplitude, thereby generating a musical tone signal. As a result,
The musical sound of the electric guitar with distortion is emitted from the speaker 64 via the amplifier 63.

On the other hand, in the second conventional example shown in FIG. 7, the vibration output of each string (the first to sixth strings) is detected by the pickups 71 independent of # 1 to # 6, and the detected vibrations are detected. The waveform signal is input to each of the distortion units 72 # 1 to # 6. The output of each of the distorted strings is mixed by the mixer 73 and output as a musical sound from the speaker 75 via the amplifier 74.

[0005]

However, the first prior art shown in FIG. 6 has a simple structure, but cannot add independent distortion to the vibration waveform of each string. Therefore, for example, when a single string is played, a desirable distortion is obtained so that a preferable distortion is obtained.
When the number 2 is adjusted, when a chord (chord), that is, a double string is played, the input level to the distortion section 62 becomes excessive in some cases. As a result, there is a problem that the configuration of the chord becomes unclear due to excessive intermodulation distortion and a very unpleasant sound is generated.

On the other hand, if the distortion section 62 is adjusted so that a desirable distortion is obtained when a chord is played, there is a problem in that the distortion is too little when a single string is played. I have.

On the other hand, in the second conventional example shown in FIG. 7, a fixed distortion is generated for each string regardless of whether a single tone or a chord is played. No points occur. However, when actually playing such an instrument, the distortion of each string varies depending on the difference between single notes and chords, and the strength of the performance,
There is a problem in that the musical tone to be played becomes harsh and lacks harmony.

It is an object of the present invention to provide a musically harmonious and excellent effect even in a single tone or a chord, or in a performance in which the strength varies from string to string. It is in.

[0009]

Depending on the performance operation of Starring player In order to solve the problems]
Multiple vibrating bodies, each corresponding to each sounding body
Detects the vibration of the corresponding sounding body and creates a tone signal.
Music from a musical instrument having a plurality of
It is assumed that an effect adding device adds an acoustic effect to a sound signal . This musical instrument is, for example, a stringed instrument such as an electric guitar or a lead instrument such as a harmonica, the sounding body is a string or a lead that can be vibrated by a player, and each detecting element converts the vibration of each string or each lead into a musical tone. It is a pickup or a pressure sensor that detects a signal.

Next, the output from each of the plurality of detection elements is output.
By tone signal, and detector element to correspond to each musical tone signal
There is an adding means for adding a tone signal output from a detection element different from the detection element at an arbitrary ratio and outputting the result. The means adds, for each tone signal, for example, a tone signal output from a detection element adjacent to a detection element that outputs the tone signal at an arbitrary ratio to the tone signal.

[0011] Further, there is provided a sound effect adding means for individually adding a sound effect to each of the added output signals output from the adding means for each tone signal. The distortion means adds a distortion effect to each addition output signal by individually distorting the waveform of each addition output signal output for each tone signal from the addition means, for example. Alternatively, a circuit that individually imparts an acoustic effect such as a chorus effect or a reverberation effect may be used.

Furthermore, an output means for outputting by synthesizing the effect adding an output signal output to either et easier sound signal by sound effect adding means. The mixing means is, for example, a mixing means such as a mixer circuit for mixing and outputting each effect-added output signal. Note that a circuit that performs the mixing process for each stereo output channel may be used.

In the above configuration of the present invention, the first setting means for allowing the user to set the above-described respective addition ratios in the adding means, and the user is provided with the addition ratio of each sound effect to each addition output signal in the sound effect adding means. It may be configured to further include a second setting unit for setting.

[0014]

[0015]

According to the present invention, for example, in a stringed musical instrument, a sound effect is individually added to each tone signal such as a pickup output signal from each string by a sound effect adding means.

In this case, the adding means adds to the signal components of each tone signal a tone signal other than the tone signal, for example, from an adjacent string or the like at an arbitrary ratio. Therefore, for example, the user (performer) generates a distortion effect or the like determined for each string by adjusting the signal output of each string so that signal components from adjacent strings are appropriately mixed. In addition to this, it is possible to apply a harmonious distortion effect between the strings even if the playing style of a single note, a chord, or the like, or the strength of the performance changes.

It is also possible to add a signal from, for example, a string other than the adjacent string to each tone signal. In this case, an acoustic effect similar to the resonance between the strings is added. Can also be added.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an overall configuration diagram of an embodiment in which the present invention is applied to an electric guitar which is a kind of electric stringed musical instrument.

In FIG. 1, the vibrations of the first to sixth strings are detected as output signals from vibration detecting pickups 11a to 11f provided corresponding to the respective strings. These output signals are input to summing amplifiers 12a to 12f and added together.

Each of the addition output signals from the addition amplifiers 12a to 12f is added to a distortion effect in the distortion circuits 13a to 13f, and then added to the mixer 1.
The sound is mixed at 4 and is output as a musical sound from the speaker 16 via the amplifier 15.

Next, the summing amplifiers 12a to 12f shown in FIG.
The distortion circuits 13a to 13f will be described in detail. FIG. 2 shows the summing amplifiers 12a to 12 of FIG.
This is a circuit configuration using the addition amplifier 12b as an example of f.
The other addition amplifiers have the same configuration except that the input strings are different.

In FIG. 2, the input “a” and “c” from the first and third strings are respectively applied to the variable resistors 21 and 23 with respect to the input “b” from the second string via the resistor 22.
While the respective input amounts (input voltages) are adjusted, the values are added as the voltage value of the inverted input P of the operational amplifier 25. As a result, as the output of the operational amplifier 25, an addition output d of d = (R2 / R1) b + (R2 / VR1) a + (R2 / VR2) c is output. In the above formula, R1, R
2 is the resistance value of each of the resistors 22 and 24, and VR
1 and VR2 represent the respective resistance values of the variable resistors 21 and 23.

As is apparent from the above equation, the ratio of the output level from each of the three strings in the added output d is equal to the ratio of the variable resistor 21 when the input levels a, b, and c from the respective strings are equal.
(VR1), 23 (VR2) and resistor 22 (R1)
Is determined by the ratio of each value.

Therefore, the user can select the variable resistors 21 and 23
Is adjusted so that the output levels from the first and third strings adjacent to the second string become musically preferable levels with respect to the output level from the second string. The signal addition ratio can be adjusted.

For example, assuming that the ratio of the resistance values of the variable resistors 21 and 23 and the resistor 22 is 10: 10: 1, each of the first, second, and third strings in FIG. Input a,
The ratios of b and c in the output d are 1: 10: 1, respectively.
Becomes As a result, the signals from the first string and the third string are added to the signal from the second string by a small amount.

The above-described signal addition processing from adjacent strings is performed for each of the six strings, and addition outputs are obtained from the addition amplifiers 12a to 12f. Next, each addition output from the addition amplifiers 12a to 12f is input to the distortion circuits 13a to 13f in FIG. FIG.
Is a common circuit configuration diagram of one of the distortion circuits 13a to 13f.

In FIG. 3, two diodes 35, 3
The clipping circuit based on the forward rising voltage of No. 6 clips a portion having a large amplitude value of the waveform, thereby adding a distortion effect.

In this case, the degree of distortion can be adjusted by determining the resistance value R3 of the resistor 31 and changing the output voltage of the operational amplifier 33 by adjusting the resistance value VR3 of the variable resistor 32. .

FIG. 4 is a circuit diagram of the mixer 14 shown in FIG. The inputs a to f corresponding to the respective strings from the distortion circuits 13a to 13f are added (mixed) via resistors 41 having the same resistance value, and the added output is inverted by a resistor 43. It is obtained as an output value of the operational amplifier 42 that is negatively fed back to the input side.

FIG. 5 is an external view of an electric guitar to which the present invention is applied, and includes pickups 11a to 11a.
f (FIG. 1), the variable resistors 21 (VR1) and 23 (VR) in each of the summing amplifiers 12a to 12f (FIG. 1).
2) knobs for adjusting the addition ratio of the signal from each string corresponding to (FIG. 2), and distortion circuits 13a to 13a-1
A knob for adjusting how to apply distortion corresponding to the variable resistor 32 (VR3) (FIG. 3) in 3f (FIG. 1) is provided.

The user (performer) can adjust the signal output of each string by operating each of the above-mentioned adjustment knobs so that the signal components from adjacent strings are appropriately mixed. A fixed distortion is generated for each string, and a harmonious distortion can be applied between the strings even if the playing style such as a single tone or a chord or the strength of the performance changes.

In the above embodiment, the summing amplifier 12 shown in FIG.
Although the circuits a through 12f, the distortion circuits 13a through 13f, and the mixer 14 are realized as analog signal circuits, these circuits may be configured as digital circuits.

In that case, the pickups 11a to 11f
Is converted into a digital signal by an A / D converter, and the digital signal is added to the addition amplifier 1 of FIG.
Input to the adders corresponding to 2a to 12f.

The output of each adder is input to a distortion circuit having a digital circuit configuration. The circuit is realized, for example, as a circuit that generates a digital value of a predetermined level (clip level) when the output of the adder exceeds a predetermined level.

The output of each distortion circuit is accumulated by an accumulator corresponding to the mixer 14 in FIG. This accumulated calculation power is converted into an analog signal by a D / A converter, amplified by an amplifier, and emitted from a speaker.

In the above-described digital circuit configuration, the number of adders and distortion circuits as digital circuits does not necessarily need to be provided in a number corresponding to each string, and one set of adders and distortion circuits are divided in time by six strings. It can be configured to operate.

On the other hand, the embodiment shown in FIG. 1 has a configuration in which only signals from adjacent strings of each string are added to output signals from each string, but the present invention is not limited to this. ,
It is also possible to configure so that signals from other strings other than the adjacent string are added. In this case, an acoustic effect similar to the resonance between the strings can be added.

Further, in the embodiment of FIG. 1, a case where a distortion effect is added as an acoustic effect has been described. However, the present invention is applicable to a musical instrument to which a reverberation effect, a chorus effect, or the like is added other than the distortion. It is also possible to apply.

In addition, the present invention is not limited to electronic stringed musical instruments, but is also applicable to lead musical instruments such as electronic harmonica.

[0040]

[Effects of the Invention] According to the present invention, the user (performer)
For example, by adjusting the signal output of each string so that the signal components from adjacent strings are appropriately mixed, it is possible to generate a distortion effect and the like determined for each string, as well as single notes, chords, etc. Even if the playing style or playing strength changes, a harmonious distortion effect can be applied between the strings.

Incidentally, it is also possible to add a signal from, for example, a string other than the adjacent string to each tone signal. In this case, a sound effect similar to the resonance between the strings is obtained. Can also be added.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of the present embodiment.

FIG. 2 is a circuit diagram of a summing amplifier.

FIG. 3 is a circuit diagram of a distortion circuit.

FIG. 4 is a circuit diagram of a mixer.

FIG. 5 is an external view of an electric guitar.

FIG. 6 is an overall configuration diagram of a first conventional example.

FIG. 7 is an overall configuration diagram of a second conventional example.

[Explanation of symbols]

 11a-11f Pickup 12a-12f Addition amplifier 13a-13f Distortion circuit 14 Mixer 15 Amplifier 16 Speaker 21, 23 Variable resistor 22, 24 Resistor 25 Operational amplifier 31, 34 Resistor 32 Variable resistor 33 Operational amplifier 35, 36 Diode

Claims (3)

(57) [Scope of request for utility model registration] 1. A plurality of vibrators that vibrate in response to a performance operation by a player
And each sounding body is provided for each sounding body.
Detecting vibration of a sounding body and outputting it as a tone signal
In the detector elements effect adding device of adding <br/> sound effects for prior Kiraku sound signals from musical instruments with, for each tone signal output from each of said plurality of detector elements, each tone signal the detection device and the detection device the corresponding is
Adding means for adding and outputting a tone signal output from another detecting element at an arbitrary ratio, and adding an acoustic effect individually to each of the added output signals output from the adding means for each tone signal. effect adding device comprising: the sound effect adding means, and output means for synthesizing the effect adding output signals outputted to the sound effect adding means or found easier sound signal by, characterized in that it has a. Wherein said adding means is for each tone signal,
The effect adding device according to claim 1, wherein the tone signals output from the adjacent detection elements are added at an arbitrary ratio. 3. A first setting means for allowing a user to set each of the addition ratios in the adding means, and a second setting means for allowing a user to set an addition ratio of each sound effect to each of the added output signals in the sound effect adding means. effect adding apparatus according to any one of claims 1 or 2 to set and means, further comprising a.