150 results about "Subwoofer" patented technology

Disclosed in the present invention are an automatic delay calibration method for a smart speaker system, a device, and a storage medium. The method comprises: initializing a smart speaker system and performing environmental testing to preliminarily configure system parameters; exciting a target sound channel and playing a target test signal; locating a first test signal on the basis of a voice activity detection (VAD) algorithm, determining the start and end of the first test signal, and identifying a time difference of the first test signal to obtain a delay of main channels; locating a time of arrival of a second test signal on the basis of a fast peak search algorithm, and identifying a delay of a subwoofer; and performing delay calibration on the subwoofer and the main channels, and dynamically adjusting delay calibration parameters of the channels on the basis of a delay calibration amount, thereby achieving accurate time alignment between the subwoofer and the main channels. The present invention solves the problem of low-frequency signal delays that are difficult to process in conventional technologies, and particularly makes a breakthrough progress in the coordination of a subwoofer and other sound channels.

A computer-implemented sound calibration method, a system and a storage medium are provided. A test audio is played by a subwoofer and a main speaker, transmitted audio is collected by an audio collection device at a primary listening position, a sound generation delay and a volume parameter difference are analyzed, and the subwoofer is calibrated based on of a frequency response curve of a scenario, so as to solve the problem in the related art where the user experience is adversely affected due to low sound calibration accuracy between the subwoofer and the main speaker.

1. Name of the Design Product: Upper Cover of the Metal Shell of the Automotive Subwoofer (K-ZZ10APR / 03). 2. Use of the Design Product: Used as the upper cover of the automotive audio shell. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photo that Best Illustrates the Design Key Points: Perspective view.

A loudspeaker having double cones and an assembly method therefor, and a car audio system. The loudspeaker having double cones comprises: a basket, which is hollow and has a first end and a second end opposite to each other; a first cone, the outer edge of which is connected to the first end; a first voice coil, which is connected to the first cone; a first magnetic circuit, which is used for driving the first voice coil to reciprocate along a motion axis; a second cone, the outer edge of which is connected to the second end, wherein the second cone has a front surface and a back surface; a second voice coil, which is connected to the second cone; and a second magnetic circuit, which is used for driving the second voice coil to reciprocate along the motion axis, wherein the back surface of the first cone and the back surface of the second cone are arranged directly opposite to each other, the first magnetic circuit is arranged between the first cone and the second cone, the first magnetic circuit is connected to the basket, a mounting space is formed in the first magnetic circuit, and the second magnetic circuit is arranged in the mounting space of the first magnetic circuit. The loudspeaker achieves the function of a subwoofer without an additional cabinet, thus saving space.

1. The name of this design product: Audio Kit (C1). 2. Purpose of this design product: used for audio playback. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: use the status reference diagram. 5. Other situations that require explanation Kit description: This design is a kit design. Kit 1 is a sound bar, Kit 2 is a surround speaker, and Kit 3 is a subwoofer.

A boat includes plurality of hulls. The boat may be a pontoon boat and the plurality of hulls may be a plurality of pontoons. A channel is defined between two hulls of the plurality of hulls. The boat includes a speaker positioned to direct sound emanating from the speaker into the channel. The speaker may be a subwoofer.

This invention discloses a sound-generating device and a display device, relating to the field of subwoofer technology. The sound-generating device includes a housing and two sound-generating units. The housing contains an independent first cavity and a second cavity, the first cavity having a larger volume than the second cavity. The first cavity communicates with the outside through a first opening on the housing, and the second cavity communicates with the outside through a second opening on the housing. The two sound-generating units are respectively installed at the first opening and the second opening. The technical solution provided by this invention uses two cavities of different sizes. The cavity with a smaller volume has a higher resonant frequency, resulting in a more powerful bass response; while the cavity with a larger volume has a lower resonant frequency, resulting in a more deep bass response. These two elements complement each other to create a deep and powerful bass performance, achieving the technical effect of satisfying both low-frequency depth and bass power in the sound-generating device.

This utility model discloses a multi-segment detachable speaker, including a subwoofer and a lower full-range column speaker mounted on top of the subwoofer. The subwoofer and the lower full-range column speaker are detachably connected via a connector. This utility model allows for the detachable assembly of the subwoofer and the lower full-range column speaker using the connector, enabling quick and flexible assembly without the need for external speaker cables or external speaker stands. The integrated pre-installed embedded connector is fixed by rotating counter-clockwise and loosened by rotating clockwise, making assembly and use quick and easy, and convenient for transportation.

The present invention relates to a vehicle-mounted subwoofer, comprising: a sound box; a magnetic control assembly, which is arranged in the sound box; a vibration sound-producing assembly, which generates vibrations and produces sound under the action of a magnetic field of the magnetic control assembly; and an equalizer, which is arranged in the sound box, wherein the equalizer comprises a recessed cavity portion and a side plate, the side plate being a flat plate and being provided with an opening in the middle, the side plate being sleeved on an open end of the recessed cavity portion, and the opening of the side plate being connected to an outer side face of the recessed cavity portion; and a gap is formed between a bottom face of the recessed cavity portion and the sound box to form a sound cavity. Compared with the prior art, the present invention adds the equalizer to the vehicle-mounted subwoofer, thereby increasing the space for air flow and achieving the purpose of enhancing a low-frequency effect.

The embodiment of the invention discloses a multi-loudspeaker array and a sound field partition control method of a vehicle cabin. The multi-loudspeaker array comprises a plurality of bass loudspeakers, a plurality of alto loudspeakers, a plurality of treble loudspeakers, a plurality of headrest loudspeakers, one or more mega bass loudspeakers and a plurality of surround loudspeakers. The bass loudspeaker, the alto loudspeaker and the treble loudspeaker are distributed in a plurality of areas of a vehicle cabin and are used for forming a sound field covering a full frequency band; the headrest loudspeaker is arranged at the position of a seat headrest and used for making sound to a corresponding seat in a near-field mode. The mega bass loudspeaker is arranged in the rear area of the vehicle cabin and used for supplementing low-frequency signals; the surround loudspeaker is arranged in the rear area of the vehicle cabin and used for forming a sound field surrounding the vehicle cabin. According to the embodiment of the invention, through the distributed layout and function division of the high-density multi-loudspeaker array, the sound fields of different seats are independently constructed and do not interfere with each other, a hardware basis is provided for partition control, and personalized audio requirements are met.

1. The name of the design product: sound box (S56). 2. The use of the design product: Bluetooth sound box, audio playback, smart home device. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: combination use state figure 1. 5. Other components that need to be explained: the appearance product is a component product, component 1 is the host, component 2 is the bass gun, component 3 is the left surround, component 4 is the right surround, because component 3 and component 4 are the same, so component 4 view is omitted.

The present invention relates to the field of automobile manufacturing, and more specifically, to a method for controlling vibration and abnormal noise of a vehicle subwoofer. The method establishes a finite element model of the vehicle body in its complete state. First, the dynamic stiffness of the subwoofer's mounting location is calculated. If the dynamic stiffness is too low, structural optimization is required. If the target value cannot be achieved due to layout or other reasons, the addition of rubber vibration isolation is considered. Finally, the subwoofer's operating excitation, obtained from the test, is applied to the subwoofer's mounting location on the vehicle body. The sound pressure responses of the driver and front passenger in the vehicle are calculated and compared with the target values ​​for feedback, thereby satisfying design requirements.

1. Name of this design product: Car audio housing (subwoofer). 2. Purpose of this design: For use in car audio enclosures. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The present invention belongs to the technical field of electroacoustics in electronics, and relates to an audio system formed by a speaker-enclosure planar array, and a preparation method for the audio system. Different from the prior art, the present invention uses a plurality of small / -micro-aperture speakers to form a special planar array audio device, such that by using the plurality of small- / micro-aperture speakers, audio signals with frequencies of 20-120 Hz or even higher, which are typically cut off in small-aperture speaker systems, are caused, by means of synchronous superposition operation, to output powerful, clear and pure bass sound waves. Moreover, an algorithm for a linear digital filter is used to perform frequency division and surround sound processing on digital audio signals of the speakers without generating a phase shift. Therefore, a series of functional defects in conventional large-aperture subwoofers are overcome, thereby enabling the planar-array audio system to achieve a surround sound effect in a three-dimensional or two-dimensional space.

The utility model discloses a slender vehicle-mounted bass sound box. The sound box comprises a box body, a bass sounding unit and an echo tube, the box body comprises a top plate, side plates and a bottom plate, and a sound cavity enclosed by the top plate, the side plates and the bottom plate is formed in the box body; the top plate is provided with a first mounting hole communicated with the sound cavity, and the top plate or the side plate is provided with a second mounting hole communicated with the sound cavity; the bass sounding unit is mounted in the first mounting hole, the bass sounding unit is provided with a vibrating diaphragm, and the vibrating diaphragm limits a part of the boundary of the sound cavity; the echo tube extends into the sound cavity from the second mounting hole; the minimum distance E between the second mounting hole and the center of the diaphragm satisfies the following formula: Rd < = E < = 3.5 Rd, wherein Rd represents the radius of the diaphragm. According to the slender vehicle-mounted bass sound box, the bass strength, the diving depth and the bass purity and texture of the vehicle-mounted bass sound box are effectively improved on the premise that the volume of the sound box is kept moderate and the cost is controllable.

The invention relates to a super-bass miniature loudspeaker which comprises a magnetic bowl, main magnetic steel, a first auxiliary magnetic steel assembly, a support, a pole piece, a second auxiliary magnetic steel assembly, a voice coil, a dome and a voice diaphragm. The lower surface of the bracket is adhered to the four pieces of first auxiliary magnetic steel; a supporting frame body is embedded in the inner wall of the bracket; flexible circuit boards are arranged at two corners of the inner surface of the bracket; the pole piece is adhered to the upper surface of the main magnetic steel; the second auxiliary magnetic steel assembly comprises four second auxiliary magnetic steels, and the four second auxiliary magnetic steels are bonded in the supporting frame body; the voice diaphragm is adhered to the upper surface of the bracket; the dome is adhered to the lower surface of the voice diaphragm; the upper surface of the voice coil is adhered to the lower surface of the dome, and two wiring ends of the voice coil are electrically connected to the positive electrode connecting end and the negative electrode connecting end of the flexible circuit board respectively. Through the specific structural design, the second auxiliary magnetic steel assembly is introduced, and the sound pressure is increased on the contrary under the condition that the height is limited. And under the condition of ensuring the product height, the product performance is still improved.

The utility model relates to the technical field of sound boxes, in particular to a linear array sound box, which comprises at least one full-frequency sound box, a power amplifier module and a bass sound box which are superposed from top to bottom, and the power amplifier module is electrically connected with the full-frequency sound box and the bass sound box respectively; a plurality of low pitch units and a plurality of high pitch units are arranged in the full-frequency sound box, a compression driver is also arranged in the full-frequency sound box, and the thickness d of the full-frequency sound box meets the following conditions: 0 lt; dlt; and presetting a thickness threshold value. According to the linear array loudspeaker box of the scheme, the full-frequency loudspeaker boxes and the bass loudspeaker boxes are overlapped, so that high-pitch and low-pitch linear arrays with different heights are formed, and the sound quality of different frequency bands can be more fully displayed. Meanwhile, the thickness of the full-frequency sound box is small, the compression driver is arranged in the full-frequency sound box, it is guaranteed that the full-frequency sound box has enough medium-high frequency sound pressure levels while the size is reduced, the maximum peak sound pressure level of a high-pitch part can achieve 136dB SPL, the installation time of the linear array sound box is saved, and the transportation cost is reduced.

1. The name of the design product: Bluetooth sound (car audio bass). 2. The use of the design product: a car audio. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

To realize localization of a sound image even with respect to an acoustic component in a low frequency band handled by a subwoofer.SOLUTION: A signal processing device includes a sound source assigning unit 61 that assigns each of a plurality of sound sources corresponding to different positions to one or more subwoofers according to a positional relationship with the sound source among a plurality of subwoofers installed in an acoustic space, and a signal processing unit 62 that generates a plurality of first sound signals respectively corresponding to the plurality of subwoofers from a plurality of sound source signals respectively corresponding to the plurality of sound sources according to a result of the assignment by the sound source assigning unit 61.SELECTED DRAWING: Figure 5

1. Name of the product in this design: Speaker Kit. 2. Purpose of this design: This design is used for playing sound. 3. The key design features of this product are its shape as shown in the figure. 4. The image or photograph that best illustrates the design points: 3D model of Kit 1. 5. Other situations requiring explanation: Kit 1 is a soundbar, and Kit 2 is a subwoofer.

1. The name of the design product: sound (car seat super-thin subwoofer). 2. The use of the design product: for sound. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective drawing.

An audio device for a motorcycle and the motorcycle having same. The audio device for the motorcycle comprises a subwoofer unit, wherein the subwoofer unit comprises: an enclosure, which has a length direction extending in the front-rear direction of the motorcycle; and a bass sound-producing module, which is configured to be located in front of the seat of the motorcycle, wherein the bass sound-producing module comprises a basket, a vibration system, and a driving system, and the basket, the vibration system, and the driving system define a first chamber. A second chamber in the enclosure is provided for the bass sound-producing module, the basket is connected to the enclosure, and airflow channels used for communicating the first chamber with the second chamber are formed in the basket; and a sound radiation surface of the vibration system is configured to face the rear of the motorcycle.

1. Name of the product in this design: Subwoofer Speaker. 2. Purpose of this design: for audio playback. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the key design points: Design 1 combined state reference diagram. 5. Design 1 is designated as the basic design.

An electroacoustic driver that can be used in a loudspeaker system, which utilizes drivers with magnetic negative springs (MNS), such as reluctance-assisted drivers (RAD) and permanent magnet corona (PMC) drivers. The electroacoustic driver can be used for all audio frequencies, including subwoofer frequencies. The magnetic negative spring of the electroacoustic driver can cancel or partially cancel the large pressure on the sound panel (of an audio speaker), thereby enabling the efficient and economical generation of significant subwoofer notes in small / portable speakers. The electroacoustic driver can include a stabilizing / centering mechanism to overcome the unstable force of the MNS, which is too large for a separate voice coil to generate.

This invention provides a panoramic sound surround system for generating surround sound in a target space. The system includes a speaker base, surround speaker modules, and a subwoofer. A speaker base control unit is connected to the surround speaker modules and the subwoofer. The system also includes a main speaker unit, comprising: a main speaker; a main speaker control unit electrically connected to the main speaker; and a switching circuit. The input terminal of the switching circuit is electrically connected to a power supply, and the output terminal is electrically connected to the receiving terminal of the main speaker control unit. The controlled terminal of the switching circuit is detachably wired to the control terminal of the speaker base control unit. This panoramic sound surround system provides at least three usage modes, improving product flexibility and meeting different user needs.

The utility model relates to loudspeaker technical field especially a kind of large-caliber micro low-frequency loudspeaker, including support, magnet cover installed on support, magnetic steel setting on magnet cover, voice coil matched with magnetic steel, diaphragm is connected with voice coil and is arranged on the support, ball top is arranged on the diaphragm, the diaphragm is made of high molecular elastomer material, the ball top is made of single-layer aluminum material, the utility model uses elastomer as diaphragm, uses single-layer aluminum material as ball top, compared with conventional size product, there is greater effective radiation area, higher low-frequency loudness.

1. Name of the designed product: sound (A8 with subwoofer). 2. Use of the designed product: for playing audio. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: perspective view 1.

The utility model discloses a desktop electronic tube Hifi sound box with double-dial display, relates to the technical field of sound boxes, and provides the following scheme aiming at the problem that some information is provided by part of existing sound boxes through a digital display screen or a simple indicator lamp but the information is not visual and comprehensive enough, and the desktop electronic tube Hifi sound box comprises a vertical frame, an up-down movement adjusting structure is arranged on one side of the vertical frame, a shell is connected to the interior of the vertical frame, a satellite loudspeaker box and a treble gun are connected to the lower portion of the interior of the shell, a subwoofer is connected to the bottom of the shell, a display panel is connected to one side of the upper portion of the interior of the shell, and an electronic tube is arranged on one side of the upper end of the interior of the shell. The upper end of the shell is connected with an operation panel, and one side, far away from the display panel, of the shell is connected with an input panel, the sound box is novel in structure, the two dial plates are arranged to display the volume and timbre parameters, and a user can visually know the current volume and timbre parameter conditions of the sound box.