48results about How to "Beautiful sound" patented technology

The invention relates to a method for manufacturing a guitar with carbon fiber and glass fiber prepreg in a composite mode. The prepreg laying pasting technology is adopted, the advantages that a carbon fiber composite material is strong in strength, high in modulus, light in weight, not prone to deformation and good in design performance and machining performance are utilized, and meanwhile the acoustical principle of wood is simulated so that the carbon fiber guitar can be manufactured. A body of the carbon fiber guitar is made of the domestic carbon fiber and a small amount of glass fiber in a composite mode. The guitar is characterized of being rigid and flexible, so that the carbon fiber guitar has melodious beautiful tone quality. Different structural designs are adopted by a panel and a back board of the guitar according to the imitation of the acoustical principle of wood, reinforcing processing is conducted on the neck of the guitar and the bottom of a guitar box, and therefore, the guitar has the advantages of being melodious in tone quality and not prone to deformation, moisture influence and crack and the like, the functions of compensation, complement and the improvement of a traditional instrument industry are achieved, the guitar has brand-new brilliance, and a new trail is blazed for manufacturing musical instruments.

The invention provides a planar diaphragm speaker with a driving unit. The planar diaphragm speaker comprises an iron frame of the speaker, a magnet, a magnetic conduction sheet and a voice coil, wherein the magnet and the magnetic conduction sheet are arranged in the iron frame; the voice coil is arranged between the iron frame and the magnet; one end of the voice coil is adhered to a step, in the middle of a cavity of the iron frame, of a butterfly vibration sheet; a front cavity of the speaker is formed at an opening of the iron frame in front of the butterfly vibration sheet; a planar diaphragm is arranged in a protruded spigot of a port of the front cavity to form a front chamber of the speaker; and air vent holes which are uniformly distributed are formed in an annular bottom surface of the front cavity. A moving coil loudspeaker which is formed by using the magnet and the magnetic conduction sheet in the iron frame and the voice coil serves as the driving unit; an audio current passes through the voice coil to generate an alternating magnetic field; the alternating magnetic field and a fixed magnetic field of the magnet attract each other and repel each other to form an air flow which pushes a vibration diaphragm to vibrate; and the front chamber uniformly pushes the planar diaphragm to vibrate so as to make a sound of the speaker. The planar diaphragm speaker with the driving unit has uniform and good transient response, lower distortion rate and excellent tone.

The invention provides an electromagnetism transient magnetic loudspeaker, which comprises a vibrating diaphragm, wherein a magnetizer is arranged on the vibrating diaphragm; an electromagnetic device is arranged on an opposite position of the magnetizer, and comprises a coil opposite to the magnetizer, and a magnetic bar; and the magnetic bar penetrates through an inner opening of the coil so as to be opposite to the magnetizer. The weight of the vibrating diaphragm is reduced; due to the removal of a voice coil, the axial movement of the voice coil in a magnetic gap is avoided; an electromagnetic type power structure is adopted, so that compared with an existing permanent magnet, the magnetic density is higher, a sound signal can be performed at high speed; a plane vibrating diaphragm design is adopted, so that voice frequency can be parallely transmitted, the defect of emission of voice frequency of a bowl type vibrating diaphragm is overcome, and the sound signal can be highly positioned; and a nickel ring has the characteristics of magnetization, inoxidizability, acid and alkali corrosion and the like, so that the service life of the loudspeaker is greatly prolonged, the problems that the magnetic force of a permanent magnet is reduced, and the tone quality is affected are solved, and graceful sound with high sound quality, clearness, enriched detail and wonderful layering performance is realized.

The invention relates to an outdoor electric torch with a Bluetooth broadcasting audio equipment function. In the present, no product with audio equipment with a Bluetooth broadcasting function and a lighting function of an electric torch combined exists in the market. The outdoor electric torch is formed by a casing portion, an LED lamp portion and an audio equipment portion. The casing portion is in a cylindrical shape and formed by an upper casing in a semi-cylindrical shape and a lower casing in a semi-cylindrical shape. A PVC net and a rubber sleeve are sequentially in sleeve connection to the periphery of the upper casing and the periphery of the lower casing. A microphone hole is formed in the outer lateral side of the casing portion. The audio equipment portion comprises a loudspeaker portion and an audio equipment operating portion, wherein the loudspeaker portion is arranged between the upper casing and the lower casing. The audio equipment operating portion comprises an access flap, a key panel, a main key and a key PCB, wherein the access flap, the key panel, the main key and the key PCB are sequentially arranged at the upper end of the casing portion. The LED lamp portion comprises a lamp body portion and a switch portion, wherein lamp body portion is arranged at the lower end of the casing portion, and the switch portion is arranged on the surface of the upper casing and in a cavity. The outdoor electric torch is simple in design structure, complete in function, convenient and practical and favorable for being popularized.

The invention provides a plate electronic sound bar musical instrument, which comprises a musical instrument body, a box body and a hammer, wherein the box body is internally designed with an electronic circuit; the surface of the musical instrument body is a complete plane and is designed into a multi-layer structure comprising a musical instrument key pattern layer, an upper circuit layer and a lower circuit later; the musical instrument key pattern is at least one row of long strip-shaped musical instrument keys with the same size; the number of each row of musical instrument keys is at least 13; and the hammer comprises a plastic hammer rod and a soft hammer head. The plate electronic sound bar musical instrument has the advantages that the structure is simple; functions are diverse; the playing skills are diverse and simple and convenient; and the user experience is high.

A percussion instrument made from Chunyu (an ancient musical instrument) belongs to the technical field of musical instruments. The percussion instrument consists of a plurality of Chunyu instruments, a mallet, a hook, a sling and a bracket and is characterized in that each Chunyu instrument has the same shape and material but is different in height, diameter and the thickness of supporting wall. Each Chunyu instrument is arranged into 1-4 layered structure capable of being used for music performance according to the respective height and the mode, scale of produced sound and each layer of the Chunyu instrument is hung on the bracket by the hook and the sling. Each Chunyu instrument is respectively cast from bronze by adopting a lost wax casting process and accords with the note arrangement from pitch to bass according to produced sound. One scale is remained among every Chunyu instrument, so an executant can fix the tone independently and can play music of different scores by using the mallet to beat different Chunyu instruments. The percussion instrument not only remains the advantages of resonant sound, exaggerated performance and generous shape of an ancient Chunyu instrument, but also richens the variety of percussion instruments and can be used as a main or auxiliary musical instrument.

The invention provides a waterproof air-isolating paper cone and a preparation method and application thereof. The waterproof air-isolating paper cone is prepared from the following raw materials: bleached sulfate softwood pulp, cotton pulp, Spanish grass pulp, a cationic styrene-acrylic emulsion and chitosan. The paper cone is composed of the paper pulp, the cationic styrene-acrylic emulsion and the chitosan. Pulp with long and soft fibers and excellent interweavability and filling property is selected as the paper pulp so as to reduce inherent porosity in a network structure of the paper cone; and then the paper cone is endowed with excellent waterproof air-isolating performance through the synergistic interaction of the cationic styrene-acrylic emulsion and the chitosan.

The invention discloses a glass object and aims to provide a chemical enhanced crystal glass product which is prepared by using a cheap combination of other oxides replacing most of a ZnO-containing combination of potassium-zinc crystal glass which is widely-known to have chemical enhanced suitability, is easy for fusion in a tank furnace and mechanical forming of a tableware, reaches the legal crystal glass standards in the aspects of glass composition, refractive index and density, is a novel glass combination, has excellent chemical enhanced suitability, has high practical strength, can be washed with alkali and can be used as a tableware. According to the invention, in comparison with the potassium-zinc crystal glass which is widely-known to have chemical enhanced suitability, the chemical enhanced high-grade crystal glass product has the following advantages: cost of raw materials can be reduced by half; practical strength is high; and deterioration is less.

A clarinet mouthpiece is composed of a mouthpiece body, a reed and a hoop. The side face of the top end of the mouthpiece body is provided with a blow hole, the reed is located on the outer side of the blow hole, and the hoop is used for fixing the reed to the mouthpiece body. Both the mouthpiece body and the reed are made of antibacterial plastic which is formed by combining 45-60 parts of PMMA, 35-50 parts of ABS resin and 5-15 parts of antibacterial masterbatch. The hoop is a circular ring with a conical degree, the circular ring is an aluminum alloy circular ring which is not prone to deformation, and the wall thickness of the aluminum alloy circular ring ranges from 1 millimeter to 2 millimeters. The clarinet mouthpiece has the advantages of being nontoxic, tasteless, mildewproof, antibacterial, comfortable in touch, firm, durable, free of maintenance and convenient to use, and allowing an air current to be easily controlled.

The invention discloses a stage feedback loudspeaker box. The stage feedback loudspeaker box comprises a box body, wherein the contour of the cross section of the box body is shaped like a right trapezoid; two mid-range loudspeakers and two coaxial loudspeakers are arranged on an inclined panel of the box body; a sound amplifying module is arranged on a vertical back plate; the inclination angle of the inclined panel is between 40 degrees and 50 degrees; the width of a top flat plate is between 3cm and 30cm. The stage feedback loudspeaker box provided by the invention has the advantages that the box body adopts an irregular structural design, so that standing waves in the box body can be reduced, and the tone is cleaner; with the top flat plate, a singer can conveniently sit or place his/her feet on the box body, so that the interactivity with the audience is effectively enhanced; the inclined panel is arranged at an angle of 40 degrees to 50 degrees, so as to effectively ensure that the sound axis can be directly oriented to the ears of the singer, and achieve good radiation effects; the two coaxial loudspeakers and the two mid-range loudspeakers not only achieve a large volume, good layering effects and high appealingness, but also achieve an ampler frequency allocation of the loudspeaker box, smooth cohesion among high-frequency tones, middle-frequency tones and low-frequency tones, and a wide sound field, so that the overall tone quality is improved.

The invention discloses a preparation method for a metallized plastic wind instrument. The structure of the metallized plastic wind instrument is in line with that of the traditional Chinese flute, and the novel metallized plastic wind instrument is made of different types of plastics subjected to surface metallization. The metallized plastic wind instrument can not only maintain the advantages of bamboo instruments, but also overcome the defects of high possibility of burst, large cold and hot contrast, difficult control on timbre and pitch caused by inconsistent inner diameters in the traditional bamboo wind instrument. Since the wind instrument has a metal texture after being subjected to modification, the timbre can be richer, more vivid and solid and the wind instrument can be used as a novel musical instrument for musical performance, family entertainment and school teaching. Besides, the metallized plastic material has the advantages of simplicity and convenience in material acquisition, good wear resistance, good corrosion resistance, anti-scaling performance, easiness in formation, low cost and convenience in processing and the like; and industrial production can be carried out according to the best inner diameter value ensuring that excellent air vibration can be generated, so as to improve the stability and accuracy of the instrument performance.

The present invention relates to one multifunctional Beijing opera fiddle and belongs to the improve of traditional Chinese stringed instrument. The multifunctional Beijing opera fiddle consists of rod, tube and membrane, string, bridge, fiddlestick, support and electroacoustic unit. The fiddle body is made of acryl or high-quality timer. The rod is equipped with mechanical shaft, string lock, trimmer, sliding positioning jack and ten-step pitch positioning board. The membrane is polyester film or snake skin with sliver or gold plated plate in it. The improved Beijing opera fiddle is favorable to mechanical production and facilitates the play. It can be used in playing different chief types of music in traditional Chinese opera.

The invention relates to a process for molding a saxophone trumpet. The process comprises the following steps of: firstly calculating the diameter of a circular blank according to the weight of a trumpet which needs to be processed; then selecting the circular blank and blanking; drawing the circular blank into a cylindrical revolution body with a flange; arranging the cylindrical revolution body with the flange on a spindle which is matched with the conical cavity of the trumpet in shape to obtain a conical revolution body with the flange; filling fillers into the cavity of the conical revolution body with the flange and bending the conical revolution body by using a tool clamp; arranging the bent conical revolution body on a bent spindle which is matched with the bent conical revolution body in bending degree and then reforming; and finally, trimming and hemming the flange part. By the adoption of the process provided by the invention, the wall thickness of the processed saxophone trumpet is uniform, a gold-phase organizational structure of the material does not change obviously, the internal stress is consistent, and the vibration frequency is uniform, so that the tone is more elegant.

The present invention relates to an elevator MP3 voice stop announcer based on the SD card technology. Parallel signals are input to a MCU processor that is respectively connected with a MP3 decoder, a SD storage card, a key-press, a code dial switch input, a CAN bus interface and a RS232 interface; The MP3 decoder is connected with a digital-to-analog converter; the digital-to-analog converter is connected with an audio output through a power amplifier. The invention is of beautiful timbre and digitally adjustable volume; the voice storage capacity can be chosen according to actual needs, with convenient data update; the invention is applied to the serial elevator control system based on the CAN bus, which is small in size and easy to be installed.

The invention relates to a large-scale combined percussion instrument bowlder chime applied to play ancient and modern music, mainly characterized in: bowlder- made chime body and figure are spit, and their junction is connected with bowlder screw thread. And the chimes are arranged for size, and hung by suspenders on a chime frame made of bowlder-wood structure, layered and inclined. And a method for making the bowlder chime mainly adopts pressure water injection, hollow sleeve drilling, deep hole manufacturing, and other process step, therefore able to save large number of bowlder resources and convenient to install, convenient to tune and having high manufacturing efficiency. And its structure is reasonable.

A method for manufacturing a novel Qin zither relates to the field of music instruments. A front bridge and a rear bridge are arranged on the upper surface of a panel, zither holes are formed in the outer sides of the front bridge and the rear bridge, zither strings are arranged between the corresponding left zither holes and right zither holes and penetrate through grooves in the tops of movable tuning keys on a panel, a front plug and a rear plug are arranged on the left side and the rear side of the panel, an inner side plate and an outer side plate are arranged on the front side and the rear side of the panel, and a string shaft plate is arrange on the lower surface of the panel and is arranged at the position corresponding to the rear bridge. Thin, thick and neat strip-shaped tune grooves graved by a manual graver are formed in the lower surface of the panel, and tune holes formed by connecting circles with triangles are formed in a bottom plate. According to the method for manufacturing the novel Qin zither, acoustic space is enlarged, sound conduction is facilitated, and sound resonance is increased, so that high pitch is clear and melodious, bass is deep, tone quality is pure, and timbre is beautiful.

The invention discloses a Huqin with a volume regulation and control device, wherein the Huqin comprises a resonator, a Huqin rod is fixedly arranged on the resonator, the Huqin rod penetrates througha hole in the resonator, and the Huqin is characterized in that a front voice diaphragm and a rear plane control device are arranged on the resonator. The regulation and control device is mounted behind the Huqin resonator, so that the volume of the Huqin resonator is freely regulated and controlled, the sound penetrating power of the Huqin is higher, the original sound is more beautiful, mellowand transparent, and the Huqin has great popularization value.

The invention relates to a marimba, which comprises a marimba seat, a vertical bracket, marimba plates and sound pipes, wherein the vertical bracket is arranged on the bottom surface of the marimba seat; a plurality of sound pipes are suspended in the marimba seat; and each marimba plate is correspondingly arranged above each sound pipe through an elastic fixing element, and is made of a plastic steel material and is coated with a paint layer. The marimba has a simple structure and low cost and solves problems such as soft texture, deformation, wear and the like of the conventional marimba plate; moreover, each marimba plate has good impression, corrosion resistance, high ageing resistance, graceful playing tone and little distortion and enhances playing effect.

The invention provides a multifunctional combination sound system for a three-dimensional flat-panel television displayer. The multifunctional combination sound system mainly comprises a flat-panel television, a subwoofer in sound equipment, a playing device and a bearing connection support device. The multifunctional combination sound system is characterized in that the flat-panel television is fixed through the bearing connection support device, and the bearing connection support device is mainly composed of a television fixing support, a bearing telescopic support, a bearing supporting column and an A-type base supporting frame. According to the multifunctional combination sound system, the flat-panel television, the sound equipment, the playing device and a karaoke system are combined together in a three-dimensional mode through the bearing connection support device, and the height and the inclination angle of the television can be adjusted at will according to the size of the flat-panel television. In addition, a left sound box and a right sound box are detachable and can be replaced according to personal preference, and people can enjoy the excellent sound effect and the visual beauty brought by combination of the flat-panel television and the sound equipment.