GB2293040A - Sound reinforcement systems for acoustic stringed instruments - Google Patents

Sound reinforcement systems for acoustic stringed instruments Download PDF

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Publication number
GB2293040A
GB2293040A GB9418243A GB9418243A GB2293040A GB 2293040 A GB2293040 A GB 2293040A GB 9418243 A GB9418243 A GB 9418243A GB 9418243 A GB9418243 A GB 9418243A GB 2293040 A GB2293040 A GB 2293040A
Authority
GB
United Kingdom
Prior art keywords
pickup
casing
electronics
instrument
built
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB9418243A
Other versions
GB9418243D0 (en
Inventor
Michael John Vanden
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB9418243A priority Critical patent/GB2293040A/en
Publication of GB9418243D0 publication Critical patent/GB9418243D0/en
Publication of GB2293040A publication Critical patent/GB2293040A/en
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H3/00—Instruments in which the tones are generated by electromechanical means
    • G10H3/12—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument
    • G10H3/14—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means
    • G10H3/18—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means using a string, e.g. electric guitar
    • G10H3/181—Details of pick-up assemblies

Abstract

The pickup has varying length neodymium magnets mounted above an air coil. The electronics for the pre-amplification and the power supply for the system may be contained within the pickup casing. The casing also acts as a carrier for the microphone system which can be mounted either internally or externally of the instrument. The electronics to control, blend and power these magnetic pickup/mic systems can be housed in a module the dimensions of which allow it to be either plugged into the instrument using an end pin jack, or used separately e.g. belt mounted. The electronics and power supply contained within the module can also be mounted in the instrument. The on-board unit provides an assembled unit of magnetic pickup and microphone system with associated electronics which can be installed during guitar manufacture and may lie under the finger board. <IMAGE>

Description

Sound reinforcement systems for acoustic stringed instruments This invention utilises pickup systems to reinforce the sound of acoustic stringed instruments.
The units described contain a magnetic pickup which has been developed to convey an accurate acoustic sound.
In the retro-fit units which fit across the soundhole of the instrument the casing is manufactured to provide the mounting clamps. The casing also acts as a carrier for the microphone system which can be mounted either internally or externally.
These units are visually unobtrusive. They can be fitted into and removed from the instrument quickly and easily with little technical expertise. No structural alterations are required for their installation. The electronics to control, blend and power these systems can be housed in a module the dimensions of which allow it to be either plugged into the instrument using an end pin jack, or used separately e.g. belt mounted. The electronics and power supply contained within the module can also be mounted in the instrument.
The on-board unit provides an assembled unit of magnetic pickup and microphone system with associated electronics which can be installed during guitar manufacture.
The construction of the magnetic pickup as shown in figure 1 is of an air coil with neodymium iron boron magnets stacked on top to give a correct string balance. This arrangement gives a good acoustic sound and a low output. For the unit as shown in figure 1 there are electronics built into the pickup to overcome low output and cable loading effects and a power supply to enable the unit to be used as a complete system. No further pre-amplification is required.
The casing is machined from solid timber and the overall width is just 13.5mm.
Figure 2 shows a magnetic pickup constructed as shown in figure 1 but without the pre-amp and battery with the addition of a flexible microphone arm for use inside the instrument.
The electronics and power supply for this system can be installed in the instrument or housed in the module to plug in or be used separately. The flexible arm is constructed of conformable coaxial cable similar to RG405 which also carries the microphone signal. The overall diameter of the arm is 4mm maximum.
Figure 3 shows the same magnetic pickup and microphone system as described in figure 2 but with the pickup casing modified to allow the flexible microphone arm to be mounted either externally or internally using SMA screw connectors.
Figure 4 shows an assembled unit suitable for installation during the manufacture of a guitar. The magnetic pickup can be completely concealed within the fingerboard. This is possible because of the pickup construction and its overall dimensions.
The internal flexible microphone arm is mounted from the pickup mounting bracket with an SMA screw connector. The external flexible microphone arm is connected via a small cranked connection fabricated from semi rigid coaxial cable. The electronics and power supply can be installed in the instrument, or housed in a casing to plug in using an end pin jack, or used separately.

Claims (6)

1 The pickup is built within a compact casing with varying length Neodymium magnets mounted above an air coil to give realistic acoustic sound and good string balance using bronze strings.
2 For the pre-amplification of the pickup descibed in Claim 1 and the power supply for the system the printed circuit board, battery and battery holder are built into the pickup casing enabling the whole unit to be quickly and easily fitted and removed. Figure 1
3 A permanent flexible microphone arm mounted in the pickup casing. Figure 2
4 A removable flexible microphone arm to be mounted either inside or outside the guitar sound hole using SMA screw connectors in pickup casing. Figure 3
5 A flexible microphone arm comstructed of conformable coaxial cable similar to RG405 which also carries the microphone signal.
6 The arrangement of stacked magnets, air coil and flexible microphone arm as descibed in Claims 1, 3, 4 and 5 built into a guitar or similar stringed instrument front and fingerboard for an invisible pickup system. Figure 4
GB9418243A 1994-09-09 1994-09-09 Sound reinforcement systems for acoustic stringed instruments Withdrawn GB2293040A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9418243A GB2293040A (en) 1994-09-09 1994-09-09 Sound reinforcement systems for acoustic stringed instruments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9418243A GB2293040A (en) 1994-09-09 1994-09-09 Sound reinforcement systems for acoustic stringed instruments

Publications (2)

Publication Number Publication Date
GB9418243D0 GB9418243D0 (en) 1994-10-26
GB2293040A true GB2293040A (en) 1996-03-13

Family

ID=10761127

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9418243A Withdrawn GB2293040A (en) 1994-09-09 1994-09-09 Sound reinforcement systems for acoustic stringed instruments

Country Status (1)

Country Link
GB (1) GB2293040A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016110599A1 (en) * 2015-01-11 2016-07-14 Relish Brothers Ag Connector for an electric harness conducting electric signals with a frequency of not more than 30khz

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4501186A (en) * 1982-06-21 1985-02-26 Nippon Gakki Seizo Kabushiki Kaisha Pickup device for stringed musical instrument
US4524667A (en) * 1983-08-15 1985-06-25 Seymour Duncan Electromagnetic pickup for a stringed musical instrument having ferromagnetic strings and method
US5010803A (en) * 1988-11-08 1991-04-30 Donnell Kenneth D Microphone mount
US5321201A (en) * 1992-12-28 1994-06-14 Noreen John S Multisound lap steel guitar

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4501186A (en) * 1982-06-21 1985-02-26 Nippon Gakki Seizo Kabushiki Kaisha Pickup device for stringed musical instrument
US4524667A (en) * 1983-08-15 1985-06-25 Seymour Duncan Electromagnetic pickup for a stringed musical instrument having ferromagnetic strings and method
US5010803A (en) * 1988-11-08 1991-04-30 Donnell Kenneth D Microphone mount
US5321201A (en) * 1992-12-28 1994-06-14 Noreen John S Multisound lap steel guitar

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016110599A1 (en) * 2015-01-11 2016-07-14 Relish Brothers Ag Connector for an electric harness conducting electric signals with a frequency of not more than 30khz

Also Published As

Publication number Publication date
GB9418243D0 (en) 1994-10-26

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Legal Events

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)