54 results about "Double voice" patented technology

The invention discloses a multifunctional wireless remote control vehicle for driving birds in an airport. The multifunctional wireless remote control vehicle comprises a vehicle body (1); and a rocket projectile launching rack (2), a titanium bullet launching rack (3), a bird driving smoke grenade launching rack (4), a double-voice bullet launching rack (5), a bird driving audio apparatus (6), a bird driving laser (7), a stroboscope lamp (8), a wireless signal receiving system (9) and a control system (10) are arranged on the vehicle body (1). The multifunctional wireless remote control vehicle has the characteristics of large monitoring range, strong flexibility, capability of quickly driving the birds and the like, can approach the frequent activity area of the birds in short time, emit bird driving bullets and drive the birds away the airport without hurting the birds, provides a good airspace for the airport, and better ensures flying safety in the airport.

The invention provides a double-magnetic circuit double-voice coil flat plane speaker, technical features thereof comprise: two lower clamp plates which are symmetrically distributed left and right are mounted on bottom layer within a plastic frame, two rare-earth magnetic steels are mounted on upper surfaces of the lower clamp plates, two upper clamp plates which are symmetrically distributed left and right are mounted on the rare-earth magnetic steels; upper end surface of the flat plane double-layer voice coil is stuck with a composite flat plane voice basin which is stuck with the elastic frame; lower end surface of the flat plane double-layer voice coil is stuck in the middle of a positioning support chip, two leading wires in the flat plane double-layer voice coil is welded with a knitting leading wire by running through the positioning support chip; the flat plane double-layer voice coil starts to vibrate and drives the flat plane voice basin to vibrate and make a sound when audio signals is input to the knitting leading wire. The invention is provided with compact structure, small volume, light weight, high electroacoustic conversion efficiency of loudspeaker, good sound quality etc.

It is possible to provide smooth communication between a PoC system as a semi-double communication system and a general telephone as a full-double communication system by solving the difference between the basic communication concepts. The communication is realized by a communication system including: a communication control device for performing conversion between a communication control signal applied in a telephone network and a communication control signal applied in the PoC system; and a voice signal processing device for performing conversion between the full-double voice signal applied in the telephone network and the semi-double voice signal applied in the Poc system.

A loud speaker comprises voice coil, magnet steel, voice basin, basin frame, positioning fold ring, magnetic conductor and line connecting terminal. It applies two voice coils as they are independentand in structure of two boneframe being wound separately, are connected in reversing series and placed at magnetic field in the samd direction and the same strength as well as they are erected in mode of parallel or coaxial and equipped with closed mutual inductive coupled and magnetic conductive loop which is passing through two coils.

The invention relates to a double voice recognition method of a service robot with independent microphone arrays. The double voice recognition method is characterized in that two sets of independent voice recognition systems respectively containing a microphone array are installed on a body of the service robot, one set comprises an annular microphone array and an off-line voice recognition system and is used for recognizing off-line voice texts such as daily conversations, command words and smart home control instructions, and the other set comprises a linear microphone array and an online voice recognition system and is used for performing voice recognition on the aspects of all application contents except for the off-line voice texts, the artificial brain and the like. The relation of the two sets of voice recognition systems lies in that no man-machine interaction is performed when a text acquired through voice recognition of the microphone array and the online voice recognition system is matched with an off-line voice text library, and only the content of an instruction text is sent to the microphone array and the off-line voice recognition system to act as supplementary information for the voice recognition content.

The invention relates to a speaker with double voice coils, which comprises a vibrating membrane, a first voice coil, a second voice coil, and a magnetic driver. The first voice coil is combined with the vibrating membrane, and receives a first signal so as to generate a first magnetic force; the second voice coil is combined with the vibrating membrane and receives a second signal so as to generate a second magnetic force; moreover, the magnetic driver generates a fixed magnetic field so as to interact with the first magnetic force and the second magnetic force, and lead the first voice coil and the second voice coil to drive the vibrating membrane together.

The present invention discloses a split type Stirling refrigerating machine, for principally resolving the existing deficiency of service lifetime and reliability of the machine in the existent technology. In a compressor of the invention, two compression pistons with a same shaft line is driven by two linear motors, wherein the two linear motor are arranged symmetrically, and the two pistons move oppositely; the linear motors are moving magnetic type linear motors and have double voice coils structure; the compression piston is supported by two sets of diaphragm springs with a small quality and a long lifetime, and a non-contact clearance seal structure is employed between the piston and an air cylinder; an decompressor employs a ejector structure with a small quality, and is supported by a cylinder spring and is driven pneumatically; an air cylinder of the decompressor is formed by laser welding a rustless steel thin wall cylinder block of a through hole and a rustless steel air cylinder bulkhead. The refrigerating machine of the invention is principally used for infrared systems to provide a low-temperature cold source for infrared devices, wherein the longevity and the reliability of the refrigerating machine are improved greatly by more than 20, 000 hours; at the same time the refrigerating machine keeps the advantage of small volume and weight, and simple structure, and the weight is no more than 2kg.

The invention relates to a method and a device for a network extension to dial a traditional extension and a computer program product thereof. The device comprises a session initial protocol agent and a real-time transmission protocol relay. The session initial protocol agent receives a session request from the network extension; a traditional extension number contained in the session request is replaced by a switchboard number; and the replaced session request is transmitted to a network gateway with the switchboard number, so that the network gateway transmits the replaced session request to a voice automaton through a telephone exchanger. The real-time transmission protocol relay transmits the traditional extension number in a double-voice multifrequency form to the network gateway. Therefore, the network extension dials the traditional extension at low hardware cost.

The invention discloses a double-voice-coil loudspeaking assembly. The double-voice-coil loudspeaking assembly comprises two loudspeaking single bodies, each loudspeaking single body comprises a magnetic circuit system, a diaphragm and a voice call, the voice coil is connected with the diaphragm, the voice coil is contained in a magnetic gap of the magnetic circuit system, and openings of the magnetic gaps of the two magnetic circuit systems are arranged in an opposite manner. The invention also provides a loudspeaking apparatus with the double-voice-coil loudspeaking assembly. Based on the above scheme, according to the double-voice-coil loudspeaking assembly and the loudspeaking apparatus, high sound pressure level can be provided, and the loudspeaking loudness can be increased.

The invention relates to a double-voice coil moving-coil loudspeaker which comprises a bracket; a U-shaped cup is fixed in the bracket; a ring-shaped vibrating diaphragm is fixed on the bracket at the position of the U-shaped cup; the U-shaped cup is internally provided with a ring-shaped groove which is internally provided with a magnet; a ring-shaped washer is arranged on the upper surface of the magnet; gaps are arranged between the side wall of the ring-shaped groove and the ring-shaped washer; a large voice coil and a small voice coil are respectively arranged in the gaps; and the ring-shaped vibrating diaphragm covers the ring-shaped washer, and the upper ends of the large voice coil and the small voice coil are fixed with the ring-shaped vibrating diaphragm. The double-voice coil moving-coil loudspeaker is characterized in that the ring-shaped washer is provided with a first vent hole; the U-shaped cup is provided with a second vent hole; and the first vent hole is communicated with the second vent hole for releasing air. The double-voice coil moving-coil loudspeaker has the beneficial effects that 1, the U-shaped cup and the washer are respectively provided with a pressure-relief hole, so that the problem of distortion caused by the air compression at the inner side of the diaphragm can be effectively solved, and the sound quality is further improved; and 2, the double-voice coil moving-coil loudspeaker is simple in structure and beneficial to production, reduces the production cost, and is beneficial to improving the product market competitive power.

The invention provides a mobile terminal which comprises a terminal transmitting unit, a terminal receiving unit, a voice frequency recording unit and a processing unit. The terminal transmitting unit transmits a conference request to a conference server and transmits a conference control request to the conference server in double-voice multi-frequency mode. The terminal receiving unit receives short message information from the conference server when a conference begins and double-voice multi-frequency signals and voice frequency signals from the conference server in the conference process. The short message information includes serial number information and initial state information of a conference participating terminal. The double-voice multi-frequency signals comprises state change information of the conference participating terminal. The voice frequency recording unit records received double-voice multi-frequency signals and voice frequency data. The processing unit is used for conducting voice frequency spectral analysis on recorded data, filter the double-voice multi-frequency signals and show the signals to a user of the mobile terminal. Correspondingly, the conference server and a conference control method are further provided. By means of the technical scheme, the information interaction in the conference process can be conducted in the short message and double-voice multi-frequency combination mode.

The invention relates to a high-efficiency, ultralinear and high-speed self-adapting and self-healing control DFFA mobile digital television and a mobile broadband communication power amplifier. In the invention, two feedforward structures of three-ring type and pre-distortion type are adopted to realize ultralinear amplification; temperature compensation attenuation, linear temperature compensation and equal power, unequal power and power synthetic type DOHERTY self-adapting high-efficiency matching technology are adopted to realize high-stability high-efficiency amplification; microprocessor interpolation, look-up table width scope optimizing and a self-lock high-speed self-adapting control vector modem are adopted to realize precise matching, wide scope, stable balance and high-speed self-adapting control self-adapting control to each signal, a distortion ring and Doherty; and double-voice IQ modem high suppression is adopted to realize pure extraction of control signals and remnant distortion signals. The invention detects the work condition in real time, and gives an alarm during abnormality and can be automatically healed so as to remove abnormality.

The invention discloses a dual-drive full-frequency bone conduction loudspeaker, and relates to the technical field of bone conduction audio transmission. The problems of lack of sound low-frequency output and high F0 value are solved. The dual-drive full-frequency bone conduction loudspeaker specifically comprises a magnet part, a sound body part and an elastic sheet supporting assembly part, themagnet part comprises U-shaped iron, a magnet, a washer sheet, an auxiliary magnet and an auxiliary washer sheet, and the U-shaped iron, the magnet, the washer sheet, the auxiliary magnet and the auxiliary washer sheet adopt a double-magnetic-circuit design; the voice body part comprises a voice coil, a fixing frame, an auxiliary voice coil and an auxiliary fixing frame. According to the invention, the structural design characteristics of double voice coils and double magnetic circuits are adopted; the vibration amplitude of the product can be increased; therefore, the sensitivity of sound and the effect of bass are effectively improved, the bass of the product is thicker and more comfortable, the elastic sheet supporting assembly part adopts a suspension supporting design, and the connected elastic sheet can be designed and modified according to requirements so as to change the amplitude of the elastic sheet supporting assembly part in the cavity and achieve the effect required by aclient.

The invention discloses a full-frequency loudspeaker provided with double voice coils, which comprises a loudspeaker bracket, a loudspeaker diaphragm, a dustproof cap, a spring wave, the voice coils, a magnetic circuit structure and a base bracket, wherein the loudspeaker diaphragm, the dustproof cap and the spring wave are installed on the loudspeaker bracket; the voice coils are used for driving the diaphragm to vibrate; the loudspeaker bracket and the magnetic circuit structure are installed on the base bracket; the two voice coils comprise a voice coil I and a voice coil II which are wound along the reverse direction; the magnetic circuit structure is a radial magnetic circuit structure which comprises a magnetic conductor and a permanent magnet; the magnetic conductor takes on a ring shape and is provided with a ring-shaped groove in the middle; and the permanent magnet takes on a ring shape and is arranged in the ring-shaped groove of the magnetic conductor in a suspension way.

The invention provides a telephone receiver. The telephone receiver comprises a double-voice coil loudspeaker, an upper cover plate and a microphone, wherein the double-voice coil loudspeaker comprises a vibrating diaphragm, a first voice coil, a second voice coil and a magnetic driving device, the first voice coil is combined with the vibrating diaphragm and is used for receiving a first signal to generate first magnetic force, the second voice coil is combined with the vibrating diaphragm and used for receiving a second signal to generate second magnetic force, and the magnetic driving device provides a fixed magnetic field to interact with the first magnetic force and the second magnetic force, so that the first voice coil and the second voice coil drive the vibrating diaphragm to vibrate, the upper portion of the double-voice coil loudspeaker is covered with the upper cover plate, a hole is formed in the middle of the upper cover, the microphone is arranged on the edge of the hole of the upper cover plate, and the central axis of the microphone is perpendicular to the axis of the hole. The invention further provides a noise elimination system and a noise elimination method with the telephone receiver. The telephone receiver, the noise elimination system and the noise elimination method have a better noise elimination effect.

The invention relates to the field of loudspeakers and provides a loudspeaker with double magnetic circuits and double voice diaphragms. The loudspeaker with double magnetic circuits and double voicediaphragms comprises a PCBA, an outer shell and a top protective cover; the loudspeaker with double magnetic circuits and double voice diaphragms is wholly like a lug boss and is provided with an upper bracket I and a lower bracket II which are assembled and fixed with a shell; and the loudspeaker with double magnetic circuits and double voice diaphragms comprises two groups of voice coils, two groups of voice diaphragms and two groups of magnet structures. As the structural design with double magnetic circuits and double voice diaphragms is adopted to control a low frequency and a high frequency respectively, the high-voice and low-voice diaphragms vibrate at the same time when an audio is input, and the high frequency and the low frequency complement each other so as to enable the low frequency to be simple and honest and the high frequency to be clear. In addition, as the outer bracket structure is made of plastic, the loudspeaker with double magnetic circuits and double voice diaphragms is low in production cost, simple in technology and high in production efficiency.

The utility model discloses a sounding device and an electronic device, and relates to the technical field of electroacoustic transduction, the sounding device comprises a magnetic circuit system and a vibration system, a central magnetic part of the magnetic circuit system comprises two central magnetic groups, an edge magnetic part comprises an outer magnetic group located at the outer sides of the two central magnetic groups and a common magnetic group located between the two central magnetic groups, the outer magnetic group and the common magnetic group are spaced from each central magnetic group so as to define two magnetic gaps which are arranged at intervals, each central magnetic group comprises a first central magnet, a central magnetic conductive plate and a second central magnet which are arranged in a stacked mode, and the outer magnetic group and the common magnetic group each comprise a first edge magnet, an edge magnetic conductive plate and a second edge magnet which are arranged in a stacked mode. The vibration system comprises a vibrating diaphragm and two voice coils, and each voice coil corresponds to one magnetic gap. According to the sounding device, the utilization rate of the magnetic circuit system is further improved by optimizing the magnetic circuit system and adopting the double voice coils, so that the loudness and the sensitivity of the sounding device are improved.

The invention provides an earphone with double voice coils. The earphone comprises a housing, a control circuit and a moving coil loudspeaker for receiving a signal output by the control circuit, wherein the moving coil loudspeaker comprises a first voice coil, a second voice coil and a coil sleeve, and the control circuit comprises a voice collecting circuit, a preamplifier, an LC oscillating circuit and a phase circuit, the voice collecting circuit receives a voice signal transmitted from the outside, the voice collecting circuit outputs the voice signal to the preamplifier, the preamplifieroutputs a voice amplifying signal to the phase circuit via the LC oscillating circuit, an audio output end of the phase circuit outputs an inverted voice signal to the first voice coil, and the second voice coil receives an audio signal transmitted by a mobile terminal. The earphone with double voice coils provided by the invention can change the sound wave output phase, and can effectively control the accuracy of adjusting the noise phase, thereby solving the noise problem so as to provide pure music to users without noise interference.

The invention discloses a toy for assisting children in object recognition training, which comprises a shell, the shell is divided into a display part and a grabbing part, a camera is mounted on the front surface of the display part, a flash lamp is arranged below the camera, a sound hole is formed in the top of the back surface of the display part, a voice broadcast module is arranged in the sound hole, and a voice prompt module is arranged in the voice broadcast module. The right side of the sound outlet hole is provided with an MIC hole, the inner side of the MIC hole is provided with a sound receiving module, and a display screen is arranged below the sound outlet hole and the MIC hole. The device has the advantages that the device is simple in structure and convenient to operate, shot articles can be read out, double voice playing of Chinese and English is carried out, children can conveniently carry out article recognition training, and the training effect is good. And learning corresponding English.

The invention relates to the technical field of voice coils, in particular to a high-efficiency combination structure of two reverse voice coils. The high-efficiency combination structure of two reverse voice coils includes a flexible circuit board, an upper ring voice coil, and a lower ring voice coil. The upper ring voice coil and the lower ring voice coil are respectively bonded on the upper and lower sides of the flexible circuit board. The ring includes a first long lead-out line and a first short lead-out line oppositely arranged, and the lower annular voice coil includes a second long lead-out line and a second short lead-out line oppositely arranged, and the flexible circuit board is provided with external terminals, Four outlet avoidances, four solder joints, and four copper-clad wires. The present invention cleverly uses the combination of double voice coils and flexible circuit boards, and uses two identical voice coils to be bonded and welded on the flexible circuit board to solve the problem of serial connection of voice coil wire ends and the external connection of voice coil lead wires , At the same time, it also avoids the problem that the traditional enameled wire lead-out wire is easily involved when it is drawn out, which plays a very good role in guaranteeing the performance of the product.

The invention relates to the technical field of voice coils, in particular to an efficient combined structure of two reverse voice coils. The efficient combined structure of the two reverse voice coils comprises a flexible circuit board, an upper annular voice coil and a lower annular voice coil, the upper annular voice coil and the lower annular voice coil are bonded to the upper face and the lower face of the flexible circuit board respectively, and the upper annular voice coil comprises a first long outgoing line and a first short outgoing line which are oppositely arranged. The lower annular voice coil comprises a second long outgoing line and a second short outgoing line which are oppositely arranged. The flexible circuit board is provided with an external connection end, four outgoing line receding openings, four welding spots and four copper-clad wires. According to the invention, the combination of the double voice coils and the flexible circuit board is ingeniously applied, the two same voice coils are bonded and welded on the flexible circuit board to ingeniously solve the problems that the voice coil wire ends are connected in series and the voice coil leading-out wire is led out to be an external connection end, and the problem that the traditional enameled wire leading-out wire is easy to be dragged when being led out is also avoided; and the performance of the product is well guaranteed.

The invention discloses a domestic voice-controlled LED street lamp. The domestic voice-controlled LED street lamp comprises an LED lamp bank, a frame, a power module and an intelligent control module. The power module comprises a photovoltaic plate, a storage battery, a first controller and a second controller. The first controller is used for preventing the storage battery from being overcharged, and the second controller is used for preventing the storage battery from being overdischarged. The intelligent control module comprises a first voice control sensor, a second voice control sensor and a master controller. The master controller turns on or turns off the LED lamp bank selectively by integrating signals collected by the first voice control sensor and the second voice control sensor. By arranging the double voice control sensors, intelligent management of the street lamp is achieved; turning-on or turning-off of the street lamp can be automatically selected according to the volume of surrounding voice so that the lighting requirement of a user can be met more flexibly with more power saved; a photovoltaic power generation system is adopted so that the street lamp can fully absorb solar energy for power generation when the street lamp is dormant in the daytime and generated power can be used at night. In this way, the energy-saving effect of the street lamp is further improved.

The invention provides a telephone receiver. The telephone receiver comprises a double-voice coil loudspeaker, an upper cover plate and a microphone, wherein the double-voice coil loudspeaker comprises a vibrating diaphragm, a first voice coil, a second voice coil and a magnetic driving device, the first voice coil is combined with the vibrating diaphragm and is used for receiving a first signal to generate first magnetic force, the second voice coil is combined with the vibrating diaphragm and used for receiving a second signal to generate second magnetic force, and the magnetic driving device provides a fixed magnetic field to interact with the first magnetic force and the second magnetic force, so that the first voice coil and the second voice coil drive the vibrating diaphragm to vibrate, the upper portion of the double-voice coil loudspeaker is covered with the upper cover plate, a hole is formed in the middle of the upper cover, the microphone is arranged on the edge of the hole of the upper cover plate, and the central axis of the microphone is perpendicular to the axis of the hole. The invention further provides a noise elimination system and a noise elimination method with the telephone receiver. The telephone receiver, the noise elimination system and the noise elimination method have a better noise elimination effect.

The invention relates to a double voice recognition method of a service robot sharing one set of microphone array. The double voice recognition method is characterized in that one set of microphone array and two sets of voice recognition systems are installed on a body of the service robot, the microphone array is an annular microphone array or a linear microphone array, and the two sets of voice recognition systems are an off-line voice recognition system and an online voice recognition system. The operating method is that the microphone array sends acquired voice information to the two sets of voice recognition systems simultaneously, the two sets of voice recognition systems are enabled to perform voice recognition respectively and convert the voice into texts, and corresponding operations are executed according to matching conditions of the content of the respectively acquired texts and an off-line voice text library which includes daily conversations, command words and smart home control instructions; if the acquired texts acquired by recognition of the off-line voice recognition system are matched with the off-line voice text library, off-line voice recognition is utilized to perform interaction; and if the texts acquired by recognition of the off-line voice recognition system are not matched with the off-line voice text library, online voice recognition is utilized to perform interaction.

The invention provides a double-voice-coil double-magnetic-circuit loudspeaker, and belongs to the field of loudspeaker structures. The loudspeaker comprises a first magnetic circuit, a second magnetic circuit, a first voice diaphragm assembly and a second voice diaphragm assembly, the first voice diaphragm assembly and the second voice diaphragm assembly are fixedly connected and arranged betweenthe first magnetic circuit and the second magnetic circuit, and the loudspeaker further comprises a dustproof net arranged on the outer side of the first magnetic circuit and a heat dissipation rearcover arranged on the outer side of the second magnetic circuit. The beneficial effects of the invention are that the work efficiency and the power processing capability are greatly improved, and thehigh-frequency response and level are expanded; salient reduction of non-linear distortion.

The utility model discloses a loudspeaker with a double-magnetic-circuit double-voice-coil structure, which comprises a shell, a mounting ring arranged at the top outside the shell, a first U-shaped iron arranged at the bottom of the shell, a connecting plate fixedly mounted outside the first U-shaped iron and fixedly connected with the shell, and a damper fixedly connected below the inside of the shell, a first U-shaped iron is arranged on the upper portion of the base, a first magnet is fixedly installed in the first U-shaped iron, a first washer is fixedly installed at the top of the first magnet, a first voice coil is arranged outside the first washer in a sleeving mode, a middle magnet is fixedly installed at the top of the first washer, and a second U-shaped iron is arranged above the middle magnet; the two magnetic circuits and the voice coil jointly drive the drum paper to vibrate, the sound production efficiency is improved, the tone quality effect of the loudspeaker can be improved, the two magnetic circuits and the voice coil work jointly under the same driving power, energy consumption is saved, and practicability is improved.

The utility model discloses a flat horn for raising low frequency, which comprises a basin stand and an upper cover, the upper cover covers the basin stand to form an installation cavity with the basin stand, a diaphragm structure is installed in the installation cavity, a diaphragm assembly comprises a support ring, a diaphragm and a dome, the dome is arranged at the top of the diaphragm, a folding ring with an arc-shaped cross section is arranged at the position, close to the edge, of the diaphragm, and the support ring is connected with the diaphragm. And the vibrating diaphragm is arranged on the supporting ring through the planar structure at the edge. According to the utility model, a traditional diaphragm structure is improved, a special structural design is carried out on the diaphragm, the diaphragm assembly comprises a support ring, the diaphragm and a dome, the diaphragm is arranged to be a structure with an arc-shaped folding ring, the folding ring is arranged on the support ring through the design of the folding ring, and a double-voice-coil structure is matched, so that the diaphragm assembly is simple in structure and convenient to use. The design can greatly improve the amplitude of the vibrating diaphragm, thereby improving the low frequency of the loudspeaker.

The utility model provides a double-voice-coil vibration system for a sounder, and relates to the technical field of sound equipment. Comprising a diaphragm assembly, a double-voice coil assembly is arranged on the diaphragm assembly, and the diaphragm assembly is clamped in the middle of the double-voice coil assembly; a PCB welding plate is arranged outside the double voice coil assembly, and the PCB welding plate is electrically connected with the double voice coil assembly. According to the utility model, the vibrating diaphragm is arranged as an assembly and the double voice coil assemblies are arranged on the upper and lower surfaces of the vibrating diaphragm assembly, so that the sounding stability is improved.

The present invention discloses a loudspeaker driver comprising a magnet system having at least one gap where in each gap a voice coil assembly is arranged for movement in the gap, wherein either two distinct coils are arranged on the voice coil assembly, one above the other, and the magnet system comprises two pole pieces, one above the other, creating a pair of magnetized areas between said pole pieces and a yoke, such that a magnetic flux field is created between each pole piece and the yoke. In an alternative two concentric gaps are provided, where the voice coil assembly comprises two concentrically arranged sub-voice coils, where each sub-voice coil is provided with a distinct voice coil and the magnet assembly has two concentrically arranged magnet rings arranged with a yoke in the center, such that two concentric gaps are created, and that the voice coil assembly moves substantially orthogonal to the flux fields in the gap(s) and further that at least the part of each pole piece facing the gap(s) is made from a soft magnetic composite (SMC) material.

The utility model discloses a sounding monomer and sounding module, relates to the sound energy conversion technology field, the sounding monomer comprises a magnetic circuit system and a vibration system, the magnetic circuit system comprises a center magnetic circuit and a side magnetic circuit, a first magnetic gap and a second magnetic gap are formed between the center magnetic circuit and the side magnetic circuit, the center magnetic circuit comprises a center magnet, and the side magnetic circuit comprises a second magnet. Each side magnetic circuit comprises a side magnet, and the magnetizing directions of the center magnet and the side magnets are opposite; the vibration system comprises a vibrating diaphragm, a voice coil assembly and a rigid connecting piece, the voice coil assembly comprises a first voice coil located in the first magnetic gap and a second voice coil located in the second magnetic gap, one side of the first voice coil is connected with the vibrating diaphragm, and the other side of the first voice coil is connected with the second voice coil through the rigid connecting piece; the current directions of the first voice coil and the second voice coil are opposite; compared with the mode that a single voice coil is adopted to drive the vibrating diaphragm to vibrate, as the driving force for driving the vibrating diaphragm to vibrate is jointly provided by the double voice coils composed of the first voice coil and the second voice coil, the performance of the sound production monomer is effectively improved.