67 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.

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 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. 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.

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. 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.

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 invention discloses a multi-scene stage sound effect management and control system and method based on intelligent frequency division, and relates to the technical field of stage sound systems, the system comprises an audio input module, an intelligent frequency division module, a dynamic sound effect enhancement module, a multi-channel power amplifier module and a user interface module, the audio input module is used for receiving human voice and accompaniment signals; the intelligent frequency division module comprises a DSP processing unit and a scene identification unit, the DSP processing unit divides a signal into four frequency bands through an FFT algorithm, and the scene identification unit automatically matches a frequency division strategy according to a performance type; the dynamic sound effect enhancement module processes signals of all frequency bands; the multi-channel power amplifier module comprises a monaural subwoofer power amplifier unit and a dual-channel mid-high pitch power amplifier unit, and a power amplifier output end is connected with a corresponding loudspeaker unit; and the user interface module provides a scene preset button and a parameter real-time display screen unit, so that sound effect self-adaption of multiple performance types is realized, the ultrahigh audio frequency segment reduction capability is improved, and meanwhile, the human voice and accompaniment signal separation degree is improved.

The present disclosure provides a computer-implemented method for sound effect calibration, a system, and a storage medium. In the method, a subwoofer and a main speaker are controlled to play test audio, an audio acquisition device is used to acquire transmitted audio at a primary listening position, delay in sound emission and differences in volume parameters are analyzed, and the subwoofer is calibrated in combination with an audio response curve of a scene, thereby solving the problem in the existing technology of low accuracy of sound effect calibration between a subwoofer and a main speaker, resulting in a poor listening experience for a user.

An audio system includes a plurality of subwoofers installed in an acoustic space and a signal processing device. The signal processing device includes one or more memories storing instructions and one or more processors. The one or more processors are configured to assign each of a plurality of sound sources that correspond to different positions, to one or more subwoofers installed in an acoustic space. Each of the plurality of sound sources is assigned based on a positional relation with each of the plurality of sound sources and a plurality of subwoofers installed in the acoustic space and including the one or more subwoofers. The one or more processors are also configured to generate, from a plurality of sound source signals corresponding to respective ones of the plurality of sound sources, a plurality of first sound signals corresponding to respective ones of the plurality of subwoofers.

This utility model discloses a D8LED picture frame active speaker system, including a D8-1 active speaker system, a D8-2 active subwoofer system, and an audio intelligent processor. The audio intelligent processor incorporates an optimized DSP audio processing circuit and microprocessor technology. The wooden cabinet of the D8-1 active speaker system has a clay-sculpted picture frame installed on its exterior. An illustration lightbox is installed on the left side of the interior of the clay-sculpted picture frame, and an LED lightbox module is installed on the illustration lightbox. The LED lightbox module uses LED strips and reflectors for uniform lighting. The D8-1 active speaker system is tilted and installed to the left of the D8-2 active subwoofer system. The D8-1 active speaker system has a full-range unit, a high-frequency unit, and an aluminum core diaphragm installed on its exterior. The D8-2 active subwoofer system has a mid-bass unit and an aluminum core diaphragm installed on its exterior. This is a comprehensive application platform for mobile background music and lightbox advertising processing. The product has built-in various common audio playback devices and audio line input / output ports, as well as a pull-out function for changing the content of the advertising images.

A digital piano includes a plurality of keys, a foot pedal mechanism positioned below the plurality of keys, a subwoofer positioned below the plurality of keys, and a controller operably connected to the plurality of keys, the foot pedal mechanism, and the subwoofer, the controller configured to cause the digital piano to produce an audible output based on at least a user input on the plurality of keys, at least a portion of the audible output being emitted by the subwoofer.

The invention discloses a multi-subwoofer sound channel mapping method and device, and relates to the technical field of intelligent automobiles, and the method comprises the steps: obtaining a playing mapping relation; under the condition that the audio comprises a subwoofer sound channel, controlling the playing device to play the audio based on the playing mapping relation; wherein the playing device comprises a plurality of subwoofer sound channels arranged in different areas of a playing space where the playing device is located, and each subwoofer sound channel is correspondingly provided with at least one loudspeaker; the playing mapping relation comprises that the subwoofer sound channel of the audio is mapped to at least two subwoofer sound channels of the multiple subwoofer sound channels. According to the method, the problem that mega bass expressive force in different areas is not uniform when the audio is played can be solved.

This utility model belongs to the field of vehicle audio technology, specifically relating to a vehicle audio system and a vehicle. The vehicle audio system includes: a main array speaker installed around the dashboard of the vehicle, comprising multiple arrayed speaker components with an audio range of 20Hz to 20000Hz; a portable speaker placed inside the vehicle and arranged independently of the main array speaker, the portable speaker being movable, and including a subwoofer and a surround sound system, the subwoofer having an audio range of 30Hz to 200Hz, and the surround sound system having an audio range of 200Hz to 2000Hz; and a vehicle controller for adjusting the first output parameters of the portable speaker according to its position. The vehicle audio system described above achieves better spatial sound effects with a smaller footprint.

This invention relates to a low-frequency sound pressure level (SPL) enhancement speaker enclosure and its cabinet. The enclosure includes a speaker enclosure and a subwoofer. The enclosure has a cavity and a subwoofer output, which consists of a mounting port and a sound wave radiation window. The mounting port and the sound wave radiation window connect the cavity to the outside environment, and are completely separated on the enclosure. The subwoofer is mounted in a sealed manner on the enclosure through the mounting port and generates low-frequency reverse waves radiating into the cavity during vibration. These reverse waves are then radiated into the outside air through the sound wave radiation window. In this invention, sound waves within the enclosure cavity can be radiated into the outside air through the sound wave radiation window, allowing sound waves behind the speaker to be utilized, thereby enhancing the low-frequency SPL and improving sound quality. This low-frequency SPL enhancement speaker enclosure is characterized by its simple structure, ease of acoustic parameter adjustment, and low cost.

1. Name of the product in this design: Home Theater Speaker (Y09). 2. Purpose of this design: For use in home theater speakers. 3. The key design feature of this product is its shape. 4. Images or photos that best illustrate the design key points: composite state diagrams. 5. Other components requiring explanation: Component 1 is the subwoofer speaker, Component 2 is the main unit, Component 3 is the surround sound speaker, and Component 4 is the wireless charging dock.

In this disclosure, a method (50) is proposed for switching from a first Bluetooth audio source (20) to a second Bluetooth audio source (21) in a user-friendly manner, for example, reducing latency. This method is performed by an audio rendering system (10), which includes a primary wireless speaker (11) and a secondary wireless speaker (12). The audio rendering system receives a first audio stream from the first audio source using a first audio topology, the first audio topology including a first set of wireless links. Upon receiving a request to switch to a second audio stream using the second audio topology (51), (52) a second set of wireless links is established, and reception of the second audio stream (53) begins, while (54) the audio rendering system and the first audio source are maintained connected via the first set of wireless links. The wireless speaker can be a wireless earbud, bookshelf speaker, floorstanding speaker, outdoor speaker, subwoofer, or headphone speaker.

The invention provides a mounting device and method for a mega bass loudspeaker and a vehicle, the mounting device for the mega bass loudspeaker comprises a first mounting part, the first mounting part is arranged on the outer side of a rear wheel cover connecting plate of the vehicle, and the first mounting part is used for limiting the mega bass loudspeaker to the rear wheel cover connecting plate; the communication hole is formed in the rear wheel cover connecting plate, the communication hole is communicated with an inlet of the mega bass loudspeaker in a matched mode, the DDS mega bass loudspeaker can be stably installed on the outer side of the rear wheel cover connecting plate through the installation device for the mega bass loudspeaker, and the sound production effect is guaranteed by matching the communication hole with the loudspeaker inlet; the space of a trunk is effectively prevented from being occupied, volume loss is avoided, and sound quality performance and vehicle storage practicability are both considered.

1. The name of the design product: Bluetooth speaker subwoofer. 2. The use of the design product: The design product is used for audio playing equipment. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: component 1 front view.