25results about How to "Improve sound" patented technology

The invention discloses a yarn tensioning device for yarn spinning and an adjusting method, and relates to the technical field of spinning machines. A guide assembly is installed on one side of the top end of the base, the guide assembly comprises a limiting block, and a guide ring is arranged on one side of the limiting block; wherein a moving assembly is arranged on one side of the guide assembly, the moving assembly comprises a pressing plate, the end, away from the positioning block, of the pressing plate is fixedly connected with a connecting base, and a reset spring is arranged in the middle of one end of the connecting base; wherein a tensioning assembly is installed on one side of the moving assembly and comprises a sliding rotating rod, a buffer spring is arranged in the middle of one end of the sliding rotating rod, and a tensioning wheel is rotationally connected to the top of the end, away from the fixed shaft, of the fixed rotating rod. The yarn tension degree can be rapidly adjusted, and when the tension of the yarn is too large, the situation that the yarn is broken is reduced.

The utility model relates to a dust explosion demonstration device, which realizes the effect of vividly demonstrating the dust explosion process through the ingenious combination of a power supply module, a high-voltage generation module, an electric arc generation head, an explosion chamber and a powder bin. The whole structure is compact, operation is easy and convenient, the positions of all modules are effectively fixed through the arrangement of the arch-shaped frame and the bottom plate, and stable supporting is provided. The air channel and the air outlet are arranged in the arch-shaped frame, and the air source is combined, so that flammable dust in the powder bin is blown away, and the dust diffusion condition in an actual production place is simulated. The explosion chamber comprises a cylindrical base and a transparent tank body, and the special design enables the explosion demonstration effect to be more vivid, for example, the height of the cylindrical base is increased. A pressure relief channel and a pressure relief valve in the top plate are arranged to effectively prevent dust backflow caused by air pressure rise, so that the reliability of the experimental device is guaranteed. The whole design is innovative and ingenious, the device is suitable for teaching demonstration and other scenes, and real simulation of the dust explosion phenomenon is presented for students.

The utility model discloses a sounding unit, a sounding assembly and an eyeshade. The sound production unit comprises a shell and a loudspeaker, and the shell comprises an accommodating cavity used for accommodating the loudspeaker; the sound guide cavity is communicated with the accommodating cavity, and the sound production direction of the loudspeaker faces the sound guide cavity; and the sound outlet is communicated with the sound guide cavity. In the sound production unit, a sound guide cavity communicated with an accommodating cavity can be used for transmitting sound produced by a loudspeaker; and the sound emitted by the loudspeaker can be reflected in the sound guide cavity, so that the sound is reverberated, the sound is more vigorous, and the sound quality is further improved. According to the sound production unit, the sound outlet is communicated with the sound guide cavity, so that sound reflected in the sound guide cavity can be concentrated and guided out through the sound outlet, the sound can be more concentrated and has higher directivity, and the sound production unit has a better sound effect in a sound transmission angle range of the sound production unit.

A long sound box structure comprises a shell, a panel, a sound box structure, a power supply structure and a control structure, the shell is integrally formed, and a mounting groove and a sound box opening are formed in the shell; the power supply structure and the control structure are mounted in the mounting groove, and a cover plate is arranged at the mounting groove; the sound box structure is arranged at the sound box opening; a water fetching structure is arranged at the end part of the shell; the sound box structure, the water fetching structure, the cover plate and the shell form a sound box cavity, the panel is fixed on the shell, and a sound outlet hole is formed in the panel; the power supply structure is electrically connected with the control structure, and the control structure is electrically connected with the loudspeaker box structure and the water fetching structure; a water fetching structure is added, liquid in the water fetching structure rotates in the playing process, and the attractive effect is improved; a specific water fetching structure is provided, so that the connection is more stable; the utility model further provides an echo wall structure convenient to install, the sealing effect is good, and the sound effect is improved.

This utility model discloses a dual-function over-ear headphone, relating to the field of headphones. It includes a headband, with an earphone body connected to the bottom of the headband. A sponge pad is connected to the side of the earphone body, and a microphone is installed on the side of the earphone body away from the sponge pad. A mounting groove is formed on the side of the mounting groove, and a miniature air pump is installed inside the mounting groove. The output end of the miniature air pump is connected to a connecting pipe, which passes through and connects to the side of the airbag ring. A compression ball slides inside the telescopic groove. In this dual-function over-ear headphone, the airbag ring can expand inside the mounting groove after being supplied with gas. When the airbag ring expands, it can compress the side walls of the waterproof membrane and waterproof mesh fabric, improving the sealing effect of the earphone body. When the sponge pad is pulled, it can cause the sliding block to slide out of the L-shaped groove, and at the same time, the fixing block will also slide out of the surface of the fixing ring, allowing the sponge pad and the earphone body to be separated and disassembled, improving the convenience of using the headphones.

The utility model discloses a mouse button pre -press structure, including mouse main part, button subassembly, micro -switch and plastic framework, and the button column is established between the button subassembly bottom abutment structure and micro -switch, the steel wire clamping spring is installed in the inside of the reverse pull arm of plastic framework front end, and the abutment structure is connected with the end of clamping spring, and the silica gel cover of button column is wrapped wear -resisting piece, and the silica gel edge first buffering when contacting micro -switch, and the pre -pressure is exerted to button subassembly through the reverse pull arm of clamping spring, and the balance button tension is made, and the down pressure is consistent with switch feedback force, and when rebounding, the button column is limited to hit the framework, and the hand feeling and noise are improved, and the no -loop fool -proof design of two end hooks vertical intersection is adopted to clamping during assembly, and the installation difficulty is reduced, and the structure is through the pre -pressure spring and silica gel buffer design, and the button hand feeling and assembly efficiency are promoted, and the problem that the existing torsion ring structure buffer is poor and assembly is complicated is solved.

The utility model discloses an audio mechanism and intelligent glasses, the audio mechanism comprises a main body and a sounding device, the main body comprises two first side walls which are oppositely arranged and two second side walls which are connected between the two first side walls and are oppositely arranged, and the main body is provided with an accommodating cavity, a sound outlet hole and a sound leakage hole; the sounding device is arranged in the accommodating cavity through a bearing bracket; the sounding device, the bearing bracket, the first side wall and the second side wall are matched together to divide the accommodating cavity into a front cavity and a rear cavity which are independent from each other; wherein the sound outlet hole is configured to enable the front cavity to be communicated with the outside, and the sound leakage hole is configured to enable the rear cavity to be communicated with the outside; compared with the prior art, the scheme has the advantages that the loudspeaker can be prevented from being directly disassembled and assembled when the loudspeaker and the main body are disassembled and assembled, so that the loudspeaker can be prevented from being damaged.

According to the display equipment and the sound effect setting method provided by some embodiments of the invention, the method can respond to the selection instruction of the installation mode, and the target mode indicated by the selection instruction is analyzed. Wherein the selection instruction is generated based on the startup navigation interface or the menu interface. And loading a sound effect file corresponding to the target mode, setting sound parameters of the audio processor according to the sound effect file, and reading equalizer parameters corresponding to the target mode. Wherein the sound effect file comprises sound effect parameters. And writing the equalizer parameter into the power amplifier, so that the audio output device outputs sound corresponding to the audio signal based on the target mode. Wherein the power amplifier is provided with a corresponding dynamic range compression parameter. According to the method, based on the installation mode of the display equipment, different modes are switched to set the sound effect, sound loss of the display equipment caused by different installation modes can be reduced, and then the sound quality effect of sound output by the display equipment is improved.

The utility model discloses a horn cavity structure and a hand drawing board, the horn cavity structure comprises a lower cover plate, a horn cavity and a horn monomer, the horn cavity comprises a shell, an accommodating cavity is formed in the shell, the lower end of the shell is provided with a through hole communicated with the accommodating cavity, and the horn monomer is placed in the accommodating cavity through the through hole; the loudspeaker cavity is arranged to form a sound cavity outside the loudspeaker single body, so that the sound effect, the sound quality and the loudness of sound are improved; the lower cover plate is provided with connecting ribs corresponding to the shell, the shell and the connecting ribs are installed on the lower cover plate in a matched mode, a through hole is formed in the lower end of the loudspeaker cavity, the loudspeaker cavity is installed on the lower cover plate in a matched mode through the connecting ribs, the loudspeaker cavity uses the lower cover plate to form a sound cavity surrounding the loudspeaker single body in a matched mode, and the thickness of the loudspeaker cavity can be reduced. The space occupancy rate is low, and the light and thin requirements of the hand drawing board are met.

A dual-drive double-sided sound-emitting loudspeaker, comprising a first vibration system and a first magnetic circuit system assembled into a first sound-emitting body, and a second vibration system and a second magnetic circuit system assembled into a second sound-emitting body; further comprising a common magnetic conductive plate, wherein the first sound-emitting body and the second sound-emitting body are symmetrically arranged with the common magnetic conductive plate as a symmetry plane. Furthermore, the first magnetic circuit system and the second magnetic circuit system are symmetrically arranged relative to the common magnetic conductive plate, the first vibration system is installed on the outside of the first magnetic circuit system, and the second vibration system is installed on the outside of the second magnetic circuit system. The double diaphragms vibrate to emit sound, and the sound pressure of the double diaphragms can be enhanced by guiding the cavity during assembly of the whole machine, thereby improving the sound. It is conducive to the linear design of speaker vibration, and it is easier to design to reduce nonlinear distortion; it is conducive to avoiding the noise caused by polarization anomalies in speaker vibration; it is conducive to avoiding wire break anomalies caused by mechanical fatigue, and improving product yield.

The utility model relates to the technical field of sound equipment, in particular to a directional loudspeaker suitable for outdoor use. A directional loudspeaker suitable for outdoor use comprises an external box body; the sound equipment body is arranged in the external box body; the sound amplification assembly is arranged in the external box body, the sound amplification assembly comprises a circular sound amplification opening, a sound amplification horn and an electric push rod, and the sound amplification opening is formed in one side of the external box body. The beneficial effects of the utility model are that the external box body is arranged outside the sound equipment, the sound equipment and the loudspeaker are arranged in the external box body, a closed environment is provided by the external box body, the sound equipment can be effectively protected from being impacted and damaged by rainwater, the loudspeaker and the sound equipment are coaxially arranged in the external box body, and the loudspeaker is driven by the electric push rod, so that the sound equipment can be effectively protected. The sound amplification horns can extend out of the external box body, directional sound amplification of the internal sound equipment is achieved, sound is concentrated in a specific direction, and therefore the loudness and the sound effect are improved.

The utility model discloses a sound box with a compact panel, which is characterized in that the sound box comprises a box body, a bass loudspeaker unit, an alto loudspeaker unit, a treble loudspeaker unit and a connecting device, the treble loudspeaker unit and the bass loudspeaker unit are assembled into a treble and bass loudspeaker assembly through the connecting device, and the treble loudspeaker unit and the alto loudspeaker unit are connected through the connecting device. The high pitch loudspeaker unit is located in the connecting device and located in front of the bass loudspeaker unit, bass sound outlet holes are formed in the periphery of the high pitch loudspeaker unit, and the alto loudspeaker unit and the high and bass loudspeaker assembly are installed on a panel of the box body side by side. The problem that a panel of an existing three-frequency-division sound box is not compact enough is solved.

The utility model discloses a miniature loudspeaker, which comprises a frame, a magnetic circuit assembly, a bass vibration assembly and a first treble vibration assembly, the magnetic circuit assembly comprises a lower yoke, a central magnetic structure, a side magnetic structure, an upper yoke and a first treble magnetic structure, and the central magnetic structure comprises a lower central magnetic steel, a central washer and an upper central magnetic steel which are sequentially arranged from bottom to top. The lower center magnetic steel is connected with the lower yoke, the upper center magnetic steel is connected with the upper yoke, the two opposite sides of the center magnetic structure are correspondingly provided with side magnetic structures respectively to form a bass magnetic gap, each side magnetic structure comprises a lower side magnetic steel, a side washer and an upper side magnetic steel which are sequentially arranged from bottom to top, the lower side magnetic steel is connected with the lower yoke, and the upper side magnetic steel is connected with the upper yoke; the upper central magnetic steel is provided with a first installation through hole, and the upper yoke is provided with a first window communicated with the first installation through hole. The miniature loudspeaker is novel in structure, can realize ultra-thinness and treble and bass frequency division, is good in sound effect, and is suitable for electronic equipment with single-side sound production.

The invention discloses a vehicle-mounted audio processing method based on a voice microphone and a handheld microphone and a vehicle. The method comprises the following steps: acquiring a first audio signal acquired by a voice microphone in a vehicle and a second audio signal acquired by a handheld microphone in the vehicle; performing optimization processing and logarithmic compression processing on the first audio signal and the second audio signal to obtain a sound mixing human voice signal; and performing sound mixing processing on the sound mixing human voice signal and the accompaniment audio to obtain and play the to-be-played audio, thereby solving the problem of poor in-vehicle karaoke effect, performing optimization and logarithmic compression processing on the first audio signal and the second audio signal to obtain the sound mixing human voice signal with a better sound effect, and improving the user experience. The audio signals collected by the voice microphone and the handheld microphone are subjected to sound mixing processing, the advantages of the two kinds of audio signals are combined, the signals are subjected to sound mixing processing through logarithmic compression, noise is prevented from being too large, the sound effect quality is improved, and then the user experience is improved.

The miniature loudspeaker comprises a frame, a magnetic circuit assembly, a bass vibration assembly and a treble vibration assembly, the magnetic circuit assembly comprises a lower yoke, a central magnetic structure, a side magnetic structure, an upper yoke and a treble magnetic structure, and the central magnetic structure comprises a lower central magnetic steel, a central washer and an upper central magnetic steel which are sequentially arranged from bottom to top. The lower center magnetic steel is connected with the lower yoke, the upper center magnetic steel is connected with the upper yoke, the two opposite sides of the center magnetic structure are correspondingly provided with side magnetic structures respectively to form a bass magnetic gap, each side magnetic structure comprises a lower side magnetic steel, a side washer and an upper side magnetic steel which are sequentially arranged from bottom to top, the lower side magnetic steel is connected with the lower yoke, and the upper side magnetic steel is connected with the upper yoke; the lower center magnetic steel is provided with an installation through hole, the lower yoke is provided with a window communicated with the installation through hole, the high-pitch magnetic structure is arranged in the installation through hole, and a high-pitch magnetic gap is formed between the high-pitch magnetic structure and the lower center magnetic steel. The miniature loudspeaker is novel in structure, can realize ultra-thinness and treble and bass frequency division, and is good in sound effect.

The invention provides a sound production device and electronic equipment, the sound production device comprises a shell, a vibration system and a magnetic circuit system, the vibration system and the magnetic circuit system are connected to the shell, and the vibration system comprises a diaphragm assembly and a voice coil; the magnetic circuit system comprises two magnetic circuit assemblies which are arranged at an interval, a magnetic gap for insertion of the voice coil is formed between the two magnetic circuit assemblies, and each magnetic circuit assembly comprises a first magnet, a second magnet, a third magnet, a fourth magnet and a fifth magnet which are arranged in a laminated mode in the vibration direction of the vibration system; the first magnet, the third magnet and the fifth magnet are magnetized in the vibration direction of the vibration system, the magnetizing directions of the first magnet and the third magnet are opposite, the magnetizing directions of the first magnet and the third magnet are the same as the magnetizing directions of the fifth magnet, and the second magnet and the fourth magnet are magnetized in the direction perpendicular to the vibration direction of the vibration system and the magnetizing directions are opposite. Therefore, each magnetic circuit assembly forms a Halbach magnetic circuit. According to the invention, the problem of poor product performance caused by the fact that the BL value is not increased due to the limitation of the spatial size of the existing sound production device can be solved.

The invention provides a loudspeaker with a magnetic flux following a voice coil, the loudspeaker comprises a diaphragm connected with a coil assembly, and the coil assembly is configured to electromagnetically drive the diaphragm. The coil assembly comprises a voice coil and a voice coil frame, and the voice coil is wound on the voice coil frame. Wherein the voice coil frame is at least partially or completely formed from a material having a high permeability characteristic. The speaker also includes a magnet assembly. The magnet assembly includes a permanent magnet and at least one pole piece, where the magnet assembly is coaxially disposed with the coil assembly, and the magnet assembly is configured to provide a gap to receive the coil assembly between poles of the magnet assembly. The present application improves the sound of the speaker without increasing the size or power consumption of the speaker.

The utility model discloses a vehicle-mounted sound equipment control circuit, a PCB board and a controller thereof, comprising a main control unit, a microprocessor, a DSP sound effect processing unit, a first audio power amplification unit and a second audio power amplification unit, the input end of the DSP sound effect processing unit and the input end of the microprocessor are respectively connected with the main control unit, the first audio power amplification unit is connected with the first audio power amplification unit, and the second audio power amplification unit is connected with the second audio power amplification unit. The output end of the DSP sound effect processing unit and the output end of the microprocessor are respectively connected with the input ends of the first audio power amplification unit and the second audio power amplification unit; the main control unit and the DSP sound effect processing unit are used for carrying out decoding processing and sound effect optimization processing on sound source signals, and the first audio power amplification unit and the second audio power amplification unit send driving signals to external loudspeakers according to control signals and audio signals, so that driving of multiple loudspeakers is realized.

The application provides a kind of loudspeaker sound optimization system and method, belongs to loudspeaker technical field, containing loudspeaker support, the loudspeaker support is equipped with loudspeaker body, the outside of the loudspeaker support is fixedly connected with connecting outer ring;The outer circumferential surface of the connecting outer ring is fixedly connected with assembly outer ring, and the assembly outer ring is reserved with mounting hole;The upper and lower two side rods on the loudspeaker support are equipped with anti-oscillation module;The other end of the anti-oscillation module is equipped with assembly rod.The application solves the problem that the existing loudspeaker lacks structure to reduce oscillation, and the loudspeaker will produce oscillation during work, which will cause the components to touch each other, and noise will be generated when touching, which will cause the sound quality played by the loudspeaker to deteriorate during work, and the oscillation will also cause the connection between parts to be loose or even detached.

The application provides a split type sound box, which comprises a first sound box body and a second sound box body buckled together, the first sound box body is provided with a clamping groove structure, the second sound box body is provided with a clamping body structure matched with the clamping groove structure, the first sound box body comprises a first shell and a first loudspeaker assembly installed in the first shell, the first shell is further provided with a first cover plate assembly matched with the first shell and used for fixing the first loudspeaker assembly, and the first cover plate assembly is provided with a first panel assembly. The split type sound box has the advantages of good sound quality, flexible use mode, effective improvement of the atmosphere of the use environment and the like, and greatly improves the use experience of customers.

The embodiment of the application discloses a human voice recognition and enhancement method and device for a voice device and a storage medium, relates to the field of communication technology, and can be applied to a scene in which sound of a intercom in a mask needs to be amplified and sound enhanced in emergency rescue. The application comprises the following steps: performing echo cancellation on collected sound signals by an NLMS algorithm, wherein the collected sound signals comprise environmental noise and voice signals; performing spectrum analysis on the sound processed in step 1, and extracting sound signals conforming to human voice characteristics; performing enhancement processing on the sound signals conforming to human voice characteristics by an IIR; and sending the sound signals processed by the enhancement processing to a intercom module.

The invention belongs to the technical field of suspension type sound boxes, and particularly relates to a suspension type sound box convenient to disassemble, which comprises a sound box body, an angle adjusting assembly is mounted on one side of the sound box body, a rotating assembly is mounted on one side of the angle adjusting assembly, a mounting plate is mounted on the side edge of the rotating assembly, and the mounting plate is mounted on a wall surface through screws. The sound box body and the two rotating components are taken to be hung, the two rotating components are moved to the two sides of the fixing component, at the moment, the locking component can move in the inclined groove until the locking component is located in the cylindrical groove, the plug pins are inserted into the locking component and the rotating components, and the sound box body is preliminarily fixed; by rotating the threaded ring, the threaded ring moves towards the side edge of the arc-shaped fixing piece until the semicircular head abuts against the side edge of the rotating component and the two semicircular heads abut against the side edges of the two rotating components, installation of the sound box body is completed, and the sound box body can be easily installed and disassembled.

A wall-mounted Bluetooth speaker switch is provided with a second inner cavity in the middle seat, a second opening is arranged at the upper end of the second inner cavity, and a hollow is arranged on the bottom surface of the middle seat. The PCB board is horizontally shaped and is attached to the second inner cavity and arranged in the second inner cavity. A loudspeaker is arranged at the upper end of the PCB board and is electrically connected to the PCB board. The panel covers the second opening and is connected to the upper end of the second opening wall. The panel is provided with a touch switch key, a volume adjustment key and an LED lamp hole. An audio output net is arranged at the center of the panel. Advantages: simple structure, easy assembly, zero fire line power supply, wall-mounted installation, connection with various Bluetooth devices such as mobile phones and computers, enhanced sound of external devices; two Bluetooth speaker switches can be connected to realize left channel and right channel effects, making the sound more stereo and improving the user experience.

The present invention relates to a comfortable bone conduction earphone, the sound generating unit divides the audio signal into high and low frequencies through a frequency divider, and the high and low frequency vibrator modules generate sound respectively, improving the sound effect. The sound generating unit contains multiple high and low frequency vibrator modules, which are arranged on the loader, and the pressure of the vibrator on the skin is adjusted to optimize the sound quality and comfort. The loader includes a loading pump, a pressure plate and a pressure sensor, and each vibrator module is equipped with an independent pressure plate and sensor. The loading pump adjusts the pressure through the air bag and valve system to ensure that the appropriate pressure is applied to the skin. The pressure sensor uses infrared light technology to measure the pressure of the vibrator on the skin according to the change of the absorption of infrared light by the skin. Three working modes are provided: time adjustment mode, pressure threshold mode and mixed mode. By monitoring and adjusting the maximum and minimum pressure of the vibrator module, the user's feeling of oppression of the earphone position is prevented.

The application discloses a vehicle-mounted network disk audio playing method and device, a storage medium and a vehicle, relates to the technical field of vehicle-mounted audio playing, and comprises the following steps: detecting that a user starts a vehicle-mounted network disk audio application, determining a vehicle-mounted network disk selected by the user based on a preset vehicle-mounted network disk adaptive interface, and determining the authorization state of the vehicle-mounted network disk; in response to the fact that the vehicle-mounted network disk is successfully authorized, acquiring audio resources in the vehicle-mounted network disk; and determining first audio resources to be played from the audio resources according to the current vehicle-mounted network state. The application realizes direct data interaction between a vehicle machine and a vehicle-mounted network disk, breaks the limitation that the prior art does not extend to a vehicle-mounted scene, lays a foundation for subsequent convenient operation and stable playing, does not require the user to copy files to a local storage device in advance, completely breaks through the limitation of the local storage capacity, reduces network consumption of online playing at the same time, guarantees playing stability, and solves the pain points of unstable playing and dependence on a network.