CN205016234U - 3-way guitar pickups - Google Patents

Abstract

The utility model provides a guitar pickup with three frequencies, which comprises an electromagnetic pickup body, a high pitch microphone and a low pitch microphone, wherein the electromagnetic pickup body is clamped at the position of a sound hole of a guitar and is provided with a control circuit and an electromagnetic pickup coil electrically connected with the control circuit, and the electromagnetic pickup coil is used for picking up audio signals of guitar strings; the high pitch microphone is electrically connected with the control circuit and is provided with a vibrating diaphragm facing the direction of the guitar back nut so as to pick up audio signals above 5 kilohertz (Hz) in the sound box; the bass microphone is electrically connected with the control circuit through an electric wire and is arranged at any position in the sound box and used for picking up audio signals lower than 200 Hertz (Hz) in the sound box; the control circuit is connected with a socket and used for outputting audio signals picked up by the electromagnetic pickup coil, the high pitch microphone and the low pitch microphone, so that the problem that the original sound effect of the restored guitar in the prior art is poor is solved.

Description

3-way guitar pickups

technical field

The utility model relates to the field of musical instrument accessories, in particular to a three-frequency guitar pickup.

Background technique

A pickup is a transducer that vibrates mechanically. It is commonly used on stringed instruments, such as electric guitars, electric bass guitars, etc., to convert musical sounds into electronic signals, which is beneficial for amplification, recording and broadcasting. Acoustic guitar (ie acoustic guitar) pickups in the prior art mainly include electromagnetic pickups as shown in Fig. 1 and Fig. 2 and piezoelectric pickups as in Fig. 3 .

As shown in Figures 1 and 2, the two ends of the electromagnetic pickup 10 are provided with clamps 11 for clamping on the periphery of the sound hole A1 of the guitar A, and a miniature microphone 12 is connected to the guitar A through a flexible tube 121. In the sound box A2, the top of the electromagnetic pickup 10 is provided with an electromagnetic coil 13 protruding to the outside of the sound hole A1, and the bottom is provided with an electromagnetic pickup volume adjustment 14 and a microphone pickup volume adjustment 15; The coil 13 picks up the vibration audio of the string A3, and the microphone 12 picks up the audio of the sound inside the speaker A2. As shown in Figure 3, the piezoelectric pickup 20 includes a control circuit 21 arranged outside the casing of the guitar A, and a microphone 22 is connected with the control circuit 21 and extends into the speaker A2 to pick up audio in the speaker A2 , and a piezoelectric strip 23 arranged on the back nut A4 of the guitar A and electrically connected to the control circuit 21 to pick up the vibration audio of the string A3. Thereby, the electromagnetic pickup 10 or the piezoelectric pickup 20 combines the two audio signals obtained through the control circuit inside the electromagnetic pickup 10 or the control circuit 21 of the piezoelectric pickup 20 to the sound amplification system. , to achieve sound amplification.

However, in the existing pickups, the electromagnetic type only picks up the vibration audio of the string A3, and the piezoelectric type only picks up the vibration audio of the string A3 pressing the back nut A4, and the obtained string vibration audio is not comprehensive; moreover, The existing pickups all use a single full-band microphone and are installed inside the speaker A2, but there is still a difference in the sound picked up inside and outside the guitar. This difference becomes more obvious when the position where the microphone extends into the speaker A2 is farther away from the sound hole A1. . However, when the microphone is closer to the sound hole A1, the microphone resonates with the speaker to generate howling because the audio that is transmitted back through the speaker after the signal is amplified is easily picked up by the microphone and then amplified.

Therefore, although the existing electromagnetic pickup and piezoelectric pickup can increase the reproduction of the original guitar sound by installing a microphone in the speaker A2, it is limited by the location of the microphone and the frequency characteristics of a single miniature standing condenser microphone. Doesn't do a good job of recreating the guitar's original sound.

Utility model content

The technical problem to be solved by the utility model is to provide a three-frequency guitar pickup, which can solve the problem in the prior art that the effect of restoring the original guitar sound is not good.

In order to solve the problems of the prior art, the technical solution adopted by the utility model is to provide a three-frequency guitar pickup, including an electromagnetic pickup body, a tweeter microphone and a bass microphone, wherein the electromagnetic pickup body has two externally opposite sides. There are two clamps at the end for clamping at the sound hole of the guitar. The electromagnetic pickup body has a control circuit, an electromagnetic pickup coil, a treble howling suppression adjustment button, a bass volume adjustment button and an electromagnetic pickup. The pickup and microphone pickup volume ratio adjustment knob is electrically connected to the control circuit, and the electromagnetic pickup coil is used to pick up the audio signal of the guitar strings and send it back to the control circuit; the tweeter microphone is located at On one side outside the body of the electromagnetic pickup, and the tweeter microphone has a vibrating membrane facing the direction of the guitar nut, the tweeter microphone is electrically connected to the control circuit to pick up the 5 kHz ( Hz) and return to the control circuit; the bass microphone is electrically connected to the control circuit through a wire and is arranged at any position inside the speaker, for picking up the audio signal below 200 Hz ( Hz) and return to the control circuit; the control circuit is connected to a socket (not shown in the figure) for outputting audio signals picked up from the electromagnetic pickup coil, tweeter microphone and bass microphone .

Preferably, both the tweeter microphone and the bass microphone are miniature electret microphones, and the diameter of the microphones is between 5mm and 20mm. In addition, the tweeter microphone is preferably placed in the sound box near the sound hole but not beyond the sound hole.

Preferably, the electromagnetic pickup body further has a total volume adjustment button, a microphone phase conversion button and an electromagnetic pickup phase conversion button, which are electrically connected to the control circuit.

Therefore, the utility model picks up the audio signal of the vibration of the strings through the electromagnetic pickup body, and cooperates with the treble microphone and the bass microphone to be respectively arranged at the sound hole of the guitar and any position in the sound box, and the electromagnetic pickup is independent of the electronic circuit. The treble microphone picks up the sound, and the bass microphone picks up the sound, respectively picks up the treble and bass audio signals of the speaker, and then connects with the control circuit to form a three-frequency guitar pickup, so that the combination of the three audio signals can be used to make the guitar The restoration effect of the original sound is good, and the desired tone can be adjusted according to personal preference.

Further, by installing the independent treble microphone and bass microphone in different positions, it is possible to avoid the problem of high and low frequency resonance with the speaker when the microphone is close to the sound hole when a single microphone is traditionally installed, and it also avoids the need for the microphone to avoid resonance. Projecting into the speaker away from the sound hole distorts the treble. Furthermore, the utility model extends the bass microphone into the sound box, so as to avoid the problem of feedback resonance and howling with the loudspeaker, and cooperates with the treble microphone located at the sound hole position to pick up the most sound that the guitar emits from the sound hole of the sound box. Fax treble.

With regard to the technology, means and other effects adopted by the utility model to achieve the above-mentioned purpose, a preferred feasible embodiment is given and described in detail in conjunction with the drawings as follows.

Description of drawings

Fig. 1 is a structural schematic diagram of an existing electromagnetic pickup.

Fig. 2 is a structural schematic diagram of an existing electromagnetic pickup disposed on a guitar.

FIG. 3 is a structural schematic diagram of a conventional piezoelectric pickup installed on a guitar.

Fig. 4 is a structural schematic diagram of the three-frequency guitar pickup of the present invention.

Fig. 5 is a structural schematic diagram of a three-frequency guitar pickup provided on a guitar according to the present invention.

FIG. 6 is a partially enlarged schematic diagram of a top view of FIG. 5 .

FIG. 7 is a partially enlarged schematic diagram of a side view of FIG. 5 .

Symbol Description

(current technology)

Guitar A sound hole A1

Speaker A2 String A3

Rear saddle A4

Electromagnetic pickup 10 clip 11

flexible tube 121 microphone 12

Electromagnetic coil 13 Electromagnetic pickup volume adjustment 14

Microphone pickup volume adjustment 15

Piezoelectric pickup 20 control circuit 21

Microphone 22 Piezoelectric Strip 23

(this utility model)

Electromagnetic pickup body 30 side 301

Jaw 31 control circuit 32

Electromagnetic pickup coil 33 Treble howling suppression amount adjustment button 34

Bass volume adjustment button 35 Electromagnetic pickup and microphone pickup volume ratio adjustment button 36

Master volume adjustment button 37 Microphone phase shift button 38

Electromagnetic pickup phase shift button 39

Treble microphone 40 diaphragm 41

Bass microphone 50 wire 51

detailed description

Please refer to Fig. 4 to Fig. 7 to illustrate the specific implementation of the three-frequency guitar pickup of the present invention.

A general guitar A includes a sound hole A1 set on one side of the speaker A2, the string A3 extends from the front end of the guitar A to the rear end and spans above the sound hole A1, the two ends of the string A3 are fixed by two string nuts, and the definition is set at The string nut at the rear end of the guitar A is the rear string nut A4. The utility model three-frequency guitar pickup comprises an electromagnetic pickup body 30, a treble microphone 40 and a bass microphone 50, the treble microphone 40 of the electromagnetic pickup body 30 is arranged on the sound hole A1 of the guitar A, and the bass microphone 50 is arranged In the speaker A2, the sound from the guitar pickup is closer to the original guitar sound.

As shown in Figures 4 to 6, the opposite ends of the electromagnetic pickup body 30 are provided with two clamps 31 for clamping at the sound hole A1 of the guitar A, and the electromagnetic pickup body 30 has a control circuit 32, An electromagnetic pickup coil 33, a treble howling suppression volume adjustment knob 34, a bass volume adjustment knob 35, an electromagnetic pickup and microphone pickup volume ratio adjustment knob 36, a total volume adjustment knob 37, a microphone phase conversion button 38 and an electromagnetic pickup phase switching button 39 are electrically connected to the control circuit 32 , and the electromagnetic pickup coil 33 is used to pick up the audio signal of the string A3 of the guitar A and send it back to the control circuit 32 .

As shown in Figures 5 to 7, the tweeter microphone 40 is arranged on a side surface 301 outside the electromagnetic pickup body 30, presents a position adjacent to the sound hole A1 but not beyond the sound hole A1 in the sound box A2, and the tweeter The microphone 40 has a vibrating membrane 41 facing the direction of the saddle A4 behind the guitar A, and the tweeter microphone 40 is electrically connected with the control circuit 32 to pick up audio signals above 5 kHz (Hz) in the speaker box A2 and return them. It is transmitted to the control circuit 32; in this embodiment, the tweeter microphone 40 is a miniature electret microphone, and the diameter of the microphone is between 5mm and 20mm.

As shown in Fig. 5 and Fig. 7, the bass microphone 50 is electrically connected to the control circuit 32 through an electric wire 51 and is arranged at any position inside the speaker A2, and is used to pick up the audio frequency lower than 200 Hz (Hz) in the speaker A2. ) and return the audio signal to the control circuit 32; in this embodiment, the bass microphone 50 is a miniature electret microphone with a diameter between 5mm and 20mm.

The control circuit 32 of the electromagnetic pickup body 30 is connected to a socket (not shown in the figure) in addition, in order to connect the loudspeaker, so that the control circuit 32 receives the string audio signal from the electromagnetic pickup coil 33, the high and low audio frequency of the treble microphone 40 signal and the bass audio signal of the bass microphone 50, cooperate with a plurality of phase conversion buttons 38,39 and adjustment buttons 34,35,36,37 located at the electromagnetic pickup body 30, after being adjusted, add the three kinds of audio signals Finally, connect the speaker output via the jack for sound amplification. In this embodiment, the socket is used for plugging in the audio transmission line to connect the electromagnetic pickup body 30 and the loudspeaker to output the sound of the musical instrument. Its technology is the prior art, so it will not be repeated.

In summary, after the utility model adopts a self-independent tweeter microphone 40 and a bass microphone 50, the microphones with two different frequency functions can be placed in the desired corresponding optimal pickup position, that is, the treble microphone The microphone is placed in the soundhole position of the guitar box, and the vibrating membrane 41 of the treble microphone 40 is moved towards the direction of the rear saddle A4 of the guitar, which is specially used to pick up the clearest high-pitched part of the guitar box and the string itself; The microphone 50 can be arranged at any position inside the speaker A2, so as to directly pick up the deepest part of the bass after the guitar strings A3 resonate through the speaker A2. The audio signals picked up by the electromagnetic pickup coil 33 of 30 are mixed together to form a three-way guitar pickup to achieve the best output of the acoustic guitar sound reproduction, effectively preventing the existing acoustic guitar pickup from only using a single microphone and not being able to perfectly Reproduce the high and low pitch of the acoustic guitar, and at the same time overcome the howling problem at high volume.

In addition, the electromagnetic pickup body 30 of the three-frequency guitar pickup of the present invention can be replaced by a piezoelectric pickup. In the embodiment of the piezoelectric pickup, the treble microphone 40 can be fixed by a set of firmware in the sound hole A1 of the guitar A, so that the treble microphone 40 is fixed adjacent to the sound hole A1 with the diaphragm 41 facing backward The position of the saddle A4 is to ensure the pickup state of the treble microphone 40.

Claims (5)

1. a three frequency division guitar acoustic pickup, in order in the sound hole place that is arranged on guitar and audio amplifier, is characterized in that:

Described acoustic pickup comprises an electromagnetic pickup body, a high pitch microphone and a bass microphone, wherein,

Described electromagnetic pickup body, outside opposite end is provided with two jaws in order to be interposed in the sound hole place of guitar, described electromagnetic pickup body has a control circuit, an electromagnetism pick-up coil, a high pitch chauvent's criterion amount adjusting knob, a bass volume adjusting button and an electromagnetism pickup and microphone pickup volume proportion adjustment button and described control circuit and is electrically connected, and described electromagnetism pick-up coil is in order to pick up the sound signal of guitar string and to be back to described control circuit;

Described high pitch microphone, be located on a side of described electromagnetic pickup body exterior, and described high pitch microphone has a vibrating diaphragm towards capotasto direction after guitar, described high pitch microphone by being electrically connected with described control circuit, in order to pick up the sound signal of in audio amplifier more than 5 kilo hertzs and to be back to described control circuit;

Described bass microphone, is electrically connected by an electric wire and described control circuit and is located at the optional position of audio amplifier inside, for pick up in audio amplifier lower than the sound signal of 200 hertz and be back to described control circuit;

Described control circuit, connects a socket, in order to export the sound signal from described electromagnetism pick-up coil, high pitch microphone and bass microphone pickup.

2. three frequency division guitar acoustic pickup according to claim 1, is characterized in that:

Described high pitch microphone is miniature electret formula microphone, and microphone diameter is between 5mm to 20mm.

3. three frequency division guitar acoustic pickup according to claim 1, is characterized in that:

Described bass microphone is miniature electret formula microphone, and microphone diameter is between 5mm to 20mm.

4. three frequency division guitar acoustic pickup according to claim 1, is characterized in that:

Described high pitch microphone is located on the side of described electromagnetic pickup body, and is close to sound hole but does not exceed sound hole status in audio amplifier.

5. three frequency division guitar acoustic pickup according to claim 1, is characterized in that:

Described electromagnetic pickup body has more a total volume adjusting button, a microphone phase transition button and an electromagnetism pickup phase transition button and described control circuit is electrically connected.