CN205016234U

CN205016234U - Three frequency division guitar adapters

Info

Publication number: CN205016234U
Application number: CN201520599256.9U
Authority: CN
Inventors: 陈文翰
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-08-11
Filing date: 2015-08-11
Publication date: 2016-02-03
Anticipated expiration: 2025-08-11

Abstract

The utility model provides a three frequency division guitar adapters, including an electromagnetic sound pickup body, a high pitch microphone and a bass microphone, wherein, the electromagnetic sound pickup body inserts and puts the sound hole department at the guitar, and has a control circuit and rather than electric connection's an electromagnetism pick -up coil, the electromagnetism pick -up coil is used for picking up the audio signal of guitar string, the high pitch microphone with control circuit electric connection just has vibrating diaphragm capotasto direction behind the guitar for pick up the audio signal more than the audio amplifier 5 kilo hertzs interior (Hz), the bass microphone through an electric wire with control circuit electric connection locates the inside optional position of audio amplifier for pick up the audio signal who is less than 200 hertz (Hz) in the audio amplifier, a control circuit connection socket is used for exporting and comes from the audio signal that electromagnetism pick -up coil, high pitch microphone and bass microphone picked up to solve the not good problem of the former sound effective value of reduction guitar that exists among the prior art.

Description

Three frequency division guitar acoustic pickup

Technical field

The utility model relates to musical instrument fitting field, refers to a kind of three frequency division guitar acoustic pickup especially.

Background technology

Acoustic pickup (pickup) is a kind of transducer by mechanical vibration, is common on the device of stringed musical instrument, as electric guitar, electric bass guitar etc., musical sound is converted to electric signal, is beneficial to expansion, recording and broadcast.Acoustic guitar of the prior art (i.e. wooden guitar) acoustic pickup mainly contains magnetic pickup as shown in Figure 1, Figure 2 and the piezoelectric pickup as Fig. 3.

As shown in Figure 1 and Figure 2, magnetic pickup 10 two ends are provided with jaws 11 in order to be interposed in the sound hole A1 periphery of guitar A, connecting a mini microphone 12 through a flexible pipe 121 stretches in the audio amplifier A2 of guitar A, the top of magnetic pickup 10 is provided with the solenoid 13 be protruding to outside sound hole A1, and bottom is provided with electromagnetism pickup volume adjusting 14, microphone pickup volume adjusting 15; Described magnetic pickup 10 utilizes solenoid 13 to pick up string A3 vibration audio frequency, and utilizes microphone 12 to pick up the audio frequency of audio amplifier A2 internal sound.As shown in Figure 3, piezoelectric pickup 20 comprises the control circuit 21 that is arranged on guitar A casing outside, one microphone 22 is connected with described control circuit 21 and stretches in audio amplifier A2, in order to pick up the audio frequency of audio amplifier A2 Inner, and one is arranged on the rear capotasto A4 of guitar A and the piezoelectricity bar 23 be electrically connected with described control circuit 21, in order to pick up the vibration audio frequency of string A3.Whereby, magnetic pickup 10 or the two kind sound signals of piezoelectric pickup 20 by obtaining, going out to public address system after control circuit 21 merging of control circuit or piezoelectric pickup 20 through being located at magnetic pickup 10 inside, realizing sound and amplifying.

But, existing acoustic pickup, electromagnetic type only picks up the vibration audio frequency of string A3, and piezoelectric type only picks up the vibration audio frequency that string A3 pushes down rear capotasto A4, and the string obtained vibration audio frequency is not comprehensive; Moreover existing acoustic pickup all adopts single full frequency band microphone and is located at audio amplifier A2 inside, but still variant at the sound of the inner and outside pickup of guitar, and the position that this species diversity stretches in audio amplifier A2 at microphone more reaches then more obvious from sound hole A1.But when microphone is the closer to sound hole A1, but due to easy because of signal amplify after to be picked up again by microphone through the audio frequency passed back by loudspeaker and amplify again, and cause microphone and loudspeaker resonance to produce uttering long and high-pitched sounds.

Be with, existing magnetic pickup and piezoelectric pickup, although arrange the reduction degree that microphone can increase guitar primary sound in audio amplifier A2, but the frequency characteristic being subject to microphone setting position and the single miniature formula of body in level capacitance microphone limited, cause the poor effect of reduction guitar primary sound.

Utility model content

The technical problems to be solved in the utility model is to provide a kind of three frequency division guitar acoustic pickup, can solve the problem of the reduction guitar primary sound poor effect existed in prior art.

For solving the problem of prior art, the technical solution adopted in the utility model is, a kind of three frequency division guitar acoustic pickup is provided, comprise an electromagnetic pickup body, one 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, one electromagnetism pick-up coil, one high pitch chauvent's criterion amount adjusting knob, one bass volume adjusting button and an electromagnetism pickup and microphone pickup volume proportion adjustment button and described control circuit are electrically connected, 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, is back to described control circuit in order to the sound signal of picking up in audio amplifier more than 5 kilo hertzs (Hz), 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 (Hz) and be back to described control circuit, described control circuit, connects a socket (not shown), in order to export the sound signal from described electromagnetism pick-up coil, high pitch microphone and bass microphone pickup.

Preferably, described high pitch microphone and bass microphone are all miniature electret formula microphones, and microphone diameter is between 5mm to 20mm.In addition, described high pitch microphone is to be close to sound hole but not exceed sound hole status in audio amplifier for better setting position.

Preferably, 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.

With the audio signal of the utility model by the vibration of electromagnetic pickup body pickup string, described high pitch microphone and bass microphone is coordinated to be arranged at optional position in the sound hole place of guitar and audio amplifier respectively, with electronic circuit independently electromagnetic type pickup separately, high pitch microphone pickup, bass microphone pickup, pick up high pitch and the audio bass signal of audio amplifier respectively, a kind of three frequency division guitar acoustic pickup is connected to form again with described control circuit, reach the collocation that can utilize described three kinds of audio signals, make the reduction effect of guitar primary sound good, more can regulate required tone color according to personal like.

Further, by by separately independently high pitch microphone, bass microphone apparatus in different positions, have and exempt tradition when single microphone is set, microphone easily produces problem that is high and low-frequency resonance with loudspeaker near sound hole, while also avoid microphone to be avoid resonance and stretch into away from sound hole the distortion that audio amplifier causes high pitch.Moreover bass microphone stretches in audio amplifier by the utility model, then have to avoid producing with loudspeaker feedbacking and resonate and the problem of uttering long and high-pitched sounds, coordinate the high pitch microphone being located at sound hole position, reach the high pitch of faxing most that pickup guitar is sent by audio amplifier sound hole.

Having about the utility model for reaching above-mentioned purpose, the technology adopted, means and other effects, hereby lifting a better possible embodiments and coordinating graphic being described in detail as follows.

Accompanying drawing explanation

Fig. 1 is the structural representation of existing magnetic pickup.

Fig. 2 is the structural representation that guitar is located at by existing magnetic pickup.

Fig. 3 is the structural representation that existing piezoelectric pickup is located at guitar.

Fig. 4 is the structural representation of the utility model three frequency division guitar acoustic pickup.

Fig. 5 is the structural representation that guitar is located at by the utility model three frequency division guitar acoustic pickup.

Fig. 6 be Fig. 5 on look close-up schematic view.

Fig. 7 is the side-looking close-up schematic view of Fig. 5.

symbol description

(prior art)

Guitar A sound hole A1

Audio amplifier A2 string A3

Rear capotasto A4

Magnetic pickup 10 jaws 11

Flexible pipe 121 microphone 12

Solenoid 13 electromagnetism pickup volume adjusting 14

Microphone pickup volume adjusting 15

Piezoelectric pickup 20 control circuit 21

Microphone 22 piezoelectricity bar 23

(the utility model)

Electromagnetic pickup body 30 side 301

Jaws 31 control circuit 32

Electromagnetism pick-up coil 33 high pitch chauvent's criterion amount adjusting knob 34

Bass volume adjusting button 35 electromagnetism pickup and microphone pickup volume proportion adjustment button 36

Total volume adjusting button 37 microphone phase transition button 38

Electromagnetism pickup phase transition button 39

High pitch microphone 40 vibrating diaphragm 41

Bass microphone 50 electric wire 51

Embodiment

Please refer to shown in Fig. 4 to Fig. 7, the embodiment of the utility model three frequency division guitar acoustic pickup is described.

General guitar A includes a sound hole A1 and is located at audio amplifier A2 side, and string A3 extends to rear end from guitar A front end and above described sound hole A1, string A3 is fixed by two capotastos at two ends, and the capotasto that guitar A rear end is located in definition is rear capotasto A4.The utility model three frequency division guitar acoustic pickup comprises electromagnetic pickup body 30, high pitch microphone 40 and a bass microphone 50, by electromagnetic pickup body 30 high pitch microphone 40 being arranged on the sound hole A1 place of guitar A, and bass microphone 50 is arranged in audio amplifier A2, reach guitar acoustic pickup is sent sound closer to guitar primary sound.

As shown in Figures 4 to 6, the outside opposite end of described electromagnetic pickup body 30 is provided with two jaws 31 in order to be interposed in the sound hole A1 place of guitar A, described electromagnetic pickup body 30 has a control circuit 32, one electromagnetism pick-up coil 33, one high pitch chauvent's criterion amount adjusting knob 34, one bass volume adjusting button 35, one electromagnetism pickup and microphone pickup volume proportion adjustment button 36, one total volume adjusting button 37, one microphone phase transition button 38 and an electromagnetism pickup phase transition button 39 are electrically connected with described control circuit 32, described electromagnetism pick-up coil 33 is in order to pick up the sound signal of guitar A string A3 and to be back to described control circuit 32.

As shown in Figures 5 to 7, described high pitch microphone 40 is located on a side 301 of described electromagnetic pickup body 30 outside, present contiguous sound hole A1 but do not exceed sound hole A1 status in audio amplifier A2, and described high pitch microphone 40 has a vibrating diaphragm 41 towards capotasto A4 direction after guitar A, described high pitch microphone 40, by being electrically connected with described control circuit 32, is back to described control circuit 32 in order to the sound signal of picking up in audio amplifier A2 more than 5 kilo hertzs (Hz); In the present embodiment, described high pitch microphone 40 is miniature electret formula microphones, and microphone diameter is between 5mm to 20mm.

As shown in Figure 5, Figure 7, described bass microphone 50, be electrically connected by an electric wire 51 and described control circuit 32 and be located at the optional position of audio amplifier A2 inside, for pick up in audio amplifier A2 lower than the sound signal of 200 hertz (Hz) and be back to described control circuit 32; In the present embodiment, described bass microphone 50 is miniature electret formula microphones, and microphone diameter is between 5mm to 20mm.

The control circuit 32 of described electromagnetic pickup body 30 separately connects a socket (not shown), in order to connect loudspeaker, after the bass audio signal making control circuit 32 receive from the string sound signal of electromagnetism pick-up coil 33, the high-low sound frequency signal of high pitch microphone 40 and bass microphone 50, coordinate multiple phase transition buttons 38,39 and the adjustment knob 34,35,36,37 of being located at electromagnetic pickup body 30, after being adjusted, described three kinds of audio signals are added the General Logistics Department, connects loudspeaker output via described socket and amplify.In the present embodiment, described socket is for grafting message transmission line, and to connect electromagnetic pickup body 30 and loudspeaker and to export musical instrument sound, its technology is prior art, therefore repeats no more.

In sum, the utility model in employing after independently high pitch microphone 40 and bass microphone 50, have and the microphone of two different frequency functions is placed in required corresponding best pickup position, that is, high pitch microphone is placed in the sound hole position of amp, and the vibrating diaphragm 41 of high pitch microphone 40 is removed towards the rear capotasto A4 direction of guitar, be specifically designed to pickup amp and string itself send the limpidest high pitch partly, bass microphone 50 then can be arranged on any position of audio amplifier A2 inside, use the directly pickup guitar string A3 part that bass is the deepest after audio amplifier A2 sympathetic response, finally, by high pitch microphone 40, the sound signal that the sound signal that bass microphone 50 picks up is picked up with the electromagnetism pick-up coil 33 of electromagnetic pickup body 30 again mixes mutually, thus form the guitar acoustic pickup of three frequency division, reach the regeneration exporting best acoustic guitar sound, effectively avoid existing acoustic guitar acoustic pickup only can not regenerate the problem of acoustic guitar height bass in good condition with single microphone, also overcome the problem of uttering long and high-pitched sounds during large volume simultaneously.

In addition, the electromagnetic pickup body 30 of the utility model three frequency division guitar acoustic pickup, can replace it by piezoelectric pickup.In the embodiment of piezoelectric pickup, described high pitch microphone 40 can pass through at the sandwiched one group of firmware of the sound hole A1 of guitar A, in order to high pitch microphone 40 is fixedly arranged on contiguous sound hole A1 place and vibrating diaphragm 41 towards the position of rear capotasto A4, to guarantee the pickup state of high pitch microphone 40.

Claims

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.