RU178464U1 - AUTONOMOUS AUDIO PLAYING SYSTEM FOR STRINGED ELECTROMUSICAL INSTRUMENTS WITH WHOLE HOUSINGS - Google Patents

Abstract

The stand-alone sound system for stringed musical instruments with solid housings has a pickup mounted on the instrument body for converting string vibrations into electrical signals, an electronic amplifier for electrical signals connected to an electrical output of a pickup, an electrodynamic loudspeaker connected to an electrical output of an electronic amplifier, and an amplifier power supply with means for manual on / off. To improve the quality of sound reproduction in the conditions of autonomous operation during the tuning of instruments and rehearsals, chamber performance or studio recording of musical works, the specified amplifier and loudspeaker are made low-power, at least a low-power loudspeaker is fixed inside the whole body of the stringed electric musical instrument and connected to at least one horn, the initial opening of which is open to the atmosphere, and the power source is selected from the group consisting of low ltnoy electric battery and a low-voltage battery.

Description

Technical field

The utility model relates to the design of such devices for autonomous sound reproduction in stringed electric musical instruments, which in the working position are fixed relative to their solid bodies and can be used by musicians to facilitate tuning, in individual rehearsals and during chamber performance or studio recording of musical works.

State of the art

Electric musical instruments (especially electric guitars) with solid bodies are now well known, generally available and have found wide application because they do not have physical restrictions on the volume (and audibility) of sound, because they use technical amplification means to reproduce sounds.

The system of such tools has long become standard (see the Wikipedia reference book, the article “Electric Guitar” on the Internet). This system has:

at least one pickup fixed to the instrument body (in particular, near the bridge), which during the game converts the vibrations of the strings into electrical signals,

an external electronic power amplifier for electrical signals connected to the electrical output of the pickup,

an external electrodynamic loudspeaker connected to an electrical output of an electronic amplifier, and

an external power source for the amplifier (usually a household power supply or a powerful battery) equipped with a means for manually turning on / off.

Such a sound reproduction system is known in two main versions.

In the first embodiment, it is a collection of bulky (usually massive) units that are arranged in a certain order in a selected room or outdoors and connected with a variety of cables.

The use of a sound reproduction system in this form for tuning musical instruments, individual rehearsals, and for chamber performance of musical works is, in principle, either impractical or difficult.

In the second variant, called “Combic”, the known system is characterized by the placement of a power amplifier and a loudspeaker in a common housing (see, for example, the website http://www.pignoseamps.com/index.php?).

However, combos are also inconvenient for the above needs. Therefore, attempts have been repeatedly made to create such devices for autonomous sound reproduction in stringed electric musical instruments that do not need any external amplification equipment.

The closest prototype of such a device is disclosed in the publication “Guitar with built-in speaker” at <http://cxem.net/sound/music/music31.php>. It has:

(a) a pickup for converting the vibrations of the strings into electrical signals, which in the working position is installed on the body of the musical instrument (in particular, electric guitars),

(b) a non-standard combined electronic power amplifier for electrical signals connected to the electrical output of the pickup, and an electrodynamic loudspeaker connected to the electrical output of the electronic amplifier, which in the working position are rigidly connected to the body of the musical instrument, and

(c) a power source of said amplifier with means for manually turning it on / off.

The described device is, in principle, suitable for autonomous sound reproduction in stringed electric musical instruments with solid bodies.

As can be seen in the illustration in the indicated source of information, the design used a relatively small electrodynamic loudspeaker, which is purely mechanically attached to the side of the instrument.

Thus, the prototype device provides amplification of sound only by electric means. Naturally, the quality of autonomous sound reproduction in the entire frequency range accessible to the used electrodynamic loudspeaker depends on the amplifier settings.

Summary of utility model essence

The utility model is based on the task of design improvements to create such a device for autonomous sound reproduction in stringed electric musical instruments with integral bodies, which provides significantly better sound quality and is equally effective for tuning, individual rehearsals and chamber or studio performances of musical works.

This problem is solved in that in the device for autonomous sound reproduction in stringed electric musical instruments with solid bodies, having

(a) a pickup for converting the vibrations of the strings into electrical signals, which in the working position is mounted on the body of the musical instrument,

(b) an electronic power amplifier for electrical signals connected to an electrical output of the pickup, and an electrodynamic loudspeaker connected to an electrical output of an electronic amplifier, which are rigidly connected to the tool body in the working position, and

(c) the power supply of the electronic amplifier with means for manually turning on / off,

according to the inventive concept, said amplifier and loudspeaker are made low-power,

the specified low-power loudspeaker is connected to at least one horn, the outlet of which is open to the atmosphere, and

the power source is selected from the group consisting of a low voltage electric battery and a low voltage battery.

This device can be made on the basis of available components and provides two-stage (that is, electronic and acoustic) amplification and, consequently, better reproduction of the sound of stringed electric musical instruments in stand-alone mode.

Brief Description of the Drawings

Further, the essence of the utility model is illustrated by a detailed description of its design and operation with links to the attached drawings, which depict on:

FIG. 1 is a structural diagram of a device for autonomous sound reproduction in stringed electric musical instruments;

FIG. 2 - a fragment of the body of an electric guitar in the installation area of a low-power electrodynamic loudspeaker (longitudinal section through the plane of symmetry);

FIG. 3-top view of a fragment of the body of an electric guitar with an example of the relative positioning of the parts of the device for autonomous sound reproduction.

Detailed description of utility model

The proposed device for autonomous sound reproduction in stringed electric musical instruments (see Fig. 1) has:

a standard pickup 2 mounted on the whole body 1 of the instrument for converting string vibrations into electrical signals,

rigidly connected to the housing 1 low-power electronic amplifier 3 of the electrical signals connected to the electrical output of the pickup 2,

a low-power electrodynamic loudspeaker 4 rigidly connected to the housing 1, connected to the electric output of the amplifier 3 and acoustically connected to at least one, and mainly two, horns 7 and 8 so that these parts 3, 7 and 8 together form a two-stage electro-acoustic amplifier sound

the power supply 5 of the amplifier 3, equipped with a means 6 (for example, a push button switch or a lever switch) for manual on / off.

Source 5 is usually selected from the group consisting of a low-voltage electric battery (for example, type S-006P, 6LR61 or 6F22 with an output voltage of 9 V) and a low-voltage battery (in particular, with an output voltage of 9 ... 12 V).

As shown in FIG. 2 in a preferred embodiment of the utility model, a low-power electrodynamic loudspeaker 4 is fixed inside the solid body 1 of a stringed electric musical instrument, for example, in a chamber 9, which is docked on opposite sides with horns 7 and 8, the outlet openings of which are open to the atmosphere and to the entrances into which facing different sides of the diffuser 10 of the speaker 4. In particular, these horns 7 and 8 and the camera 9 may have a common plane of symmetry.

In FIG. 3, for illustration purposes only, a fragment of a one-piece housing 1 with a bridge 11, a pickup 2, and strings 12 of a six-string electric guitar is shown. In this embodiment of the utility model, the loudspeaker 4 is located inside the recess in the housing 1 between the outlet openings of the horns 8 and 9, which were previously shown in FIG. 2.

When preparing an electric musical instrument for tuning, rehearsal, chamber performance or studio recording, the musician uses means 6 to connect the power supply 5 to amplifier 3.

Further, the described system operates in an autonomous mode, namely: a pickup 2 converts string vibrations into electrical signals, a low-power electronic amplifier 3 amplifies these signals, and a low-power electrodynamic loudspeaker 4, together with horns 8 and 9, as acoustic amplifiers reproduces sounds with a volume that is sufficient for a musician to set up an instrument or to evaluate the quality of a rehearsed musical work, for listeners of a chamber concert or for studio recording.

After completing the settings or playing the musician turns off the power to the amplifier 3 by pressing the tool 6.

Industrial applicability

The specialist understands that the proposed device in the scope of rights limited only by the formula of the utility model given below can be mass-produced on a wide modern element base using standard production equipment.

Claims (1)

A device for autonomous sound reproduction in stringed electric musical instruments with integral bodies, having a pickup for converting string vibrations into electrical signals; an electronic power amplifier for electrical signals connected to an electrical output of a pickup, an electrodynamic loudspeaker connected to an electrical output of an electronic amplifier; and the power source of the amplifier with means for manually turning on / off, characterized in that said amplifier and loudspeaker are made low-power, said low-power loudspeaker is connected to at least one horn, the outlet of which is open to the atmosphere, and the power source is selected from the group consisting of low voltage electric battery and low voltage battery.

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