129 results about "Surround sound" patented technology

The invention provides a control method and device of a vehicle-mounted external loudspeaker and a vehicle-mounted external loudspeaker system. The control method comprises the following steps that in response to starting of a vehicle-mounted loudspeaker box mode, the relative position relation between a user and a vehicle is obtained at a preset time interval, and the vehicle is provided with a plurality of vehicle-mounted external loudspeakers making sounds outwards; determining a target loudspeaker and a corresponding sound channel from the plurality of vehicle-mounted external loudspeakers at least based on the relative position relationship; and controlling each target loudspeaker to play the audio data of the corresponding sound channel. The invention provides a mode of taking the vehicle as a large mobile sound box capable of providing a surround sound field, and the provided surround sound field can be adjusted according to the relative position relationship between the user and the vehicle, so that the hearing effect of the user when using the vehicle-mounted sound box is improved, the application scene of the vehicle is expanded, and the user experience is improved.

The invention relates to a main sound device and a sound device control method, the main sound device and at least one auxiliary sound device form a surround sound system, and the main sound device comprises a controller configured to send a volume acquisition request used for requesting volume information of the auxiliary sound device; receiving first volume information, wherein the first volume information is used for indicating an output sound pressure level supported by the target auxiliary sound equipment; determining a target sound pressure difference, wherein the target sound pressure difference is a sound pressure level corresponding to the difference between the distance from the main sound box to the user and the distance from the target auxiliary sound box to the user; based on a first audio signal corresponding to the main sound box, the current output sound pressure level of the main sound box, a second audio signal corresponding to the target auxiliary sound box, the first volume information and the target sound pressure difference, determining a third audio signal played by the main sound box based on the current output sound pressure level and a fourth audio signal played by the target auxiliary sound box based on the target output sound pressure level, the sound pressure level when the third audio signal reaches the user and the sound pressure level when the fourth audio signal reaches the user meet the consistency condition.

Surround sound systems can dramatically expand the size of a user's sound field. Much surround sound content is mixed in a simplistic way where the front audio is copied to the rear, at a lower volume. It can be difficult for users to appreciate the value proposition of a surround sound system without more compelling spatially complex content. Quantifying surround sound complexity of various content items based on an audio spatial complexity scoring system can address this issue. Algorithms can be implemented to determine an audio spatial complexity score based on audio channels of a content item. Large catalog of content items can be analyzed, and audio spatial complexity scores can be associated with various content items. If a user has a surround sound system, content items with a high audio spatial complexity can be retrieved or recommended to the user to demonstrate the surround sound system's value better.

An experience sharing system for sharing an experience with others using VR and a method thereof includes a VR recorder that records a surrounding environment image, a user response image, and a surrounding sound of a first user to generate experience content, a VR player that plays and provides the experience content to a second user, and a data processing device connected to the VR recorder and the VR player over a communication network. The data processing device pre-analyzes the experience content received from the VR recorder to classify a category, adds an image matched with the classified category to the experience content, stores the experience content to which the image is added in a DB, and accesses the experience content from the DB depending on a request of the VR player and transmits the accessed experience content to the VR player.

Methods and apparatus for acquiring and encoding omnidirectional surround sound are described herein. An exemplary omnidirectional surround microphone may include a first microphone capsule oriented substantially toward a first vertex of a conceptual tetrahedron, a second microphone capsule oriented substantially toward a second vertex of the conceptual tetrahedron, a third microphone capsule oriented substantially toward a third vertex of the conceptual tetrahedron and a fourth microphone capsule oriented substantially toward a fourth vertex of the conceptual tetrahedron.

In one embodiment, an A / V interconnection architecture is provided that includes a TX A / V endpoint that supports native audio and stereo down-mixed audio on separate networks. The TX A / V endpoint outputs native audio over a video network to an RX A / V endpoint coupled to an A / V sink component that is capable of processing or outputting the native audio, and produces a stereo down-mixed version of the native audio which is output over an audio network to an audio system coupled to an audio sink component that is incapable of handling the native audio. In another embodiment, an A / V interconnection architecture is provide that enables expandable surround sound. If the number of audio channels for a type of surround sound is less than or equal to a number of local amplified output channels, surround sound is provided using only local unpowered speakers. If the number exceeds the number of the local amplified output channels, surround sound is provided using both the local unpowered speakers and one or more add on devices accessible over the audio network.

The application discloses an implementation method and system of an intelligent earphone interrupt function based on a positioning technology. The method comprises the following steps: establishing a connection between an intelligent earphone and a mobile host terminal and synchronizing a clock, and determining a relative position of multiple parties in space; calculating a distance difference by receiving sound data, and solving three-dimensional coordinates and distance information of a sound source based on a hyperbolic positioning principle; determining an interrupt priority value in combination with a semantic analysis result of the sound data, and sending an intelligent reminder to a user according to the interrupt priority value. The application realizes accurate spatial perception and intelligent importance judgment of surrounding sound events, enables the intelligent earphone to actively provide an interrupt type reminder at a critical moment, and improves the intelligence and practicability of human-computer interaction.

The present invention relates to a method for managing the low frequency content obtained by a loudspeaker system comprising a plurality of loudspeaker devices, such as a surround sound loudspeaker system, wherein each individual loudspeaker device has a known response as a function of frequency under anechoic conditions comprising a phase response, the method comprising the steps of providing a plurality of loudspeaker devices (1, 2, 3, 4) and for each of said plurality of loudspeaker devices (1, 2, 3, 4) providing the corresponding phase response as a function of frequency obtained under anechoic conditions and for each of the individual loudspeaker devices (1, 2, 3, 4) inserting a filter device (5, 6, 7, 8) in the signal chain to the corresponding loudspeaker device (1, 2, 3, 4), where the individual filter device (5, 6, 7, 8) is configured such that the resulting phase response of each individual loudspeaker device (1, 2, 3, 4) under anechoic conditions is substantially the same for all of the loudspeaker devices (1, 2, 3, 4). The invention further relates to a loudspeaker system implementing the method of the invention.

1. The name of the design product: sound box support (adapt to KEF, Bowers & Wilkins). 2. The use of the design product: used for floor stand of surround sound box and sound. 3. The design points of the design product: in shape. 4. The picture or photo that can best show the design points: design 1 perspective view. 5. Design 1 is specified as the basic design.

The invention discloses an audio virtual surround processing method, a computer program product and electronic equipment. The audio virtual surround processing method comprises the following steps: acquiring a stereo signal containing two channels as an original audio, and separating an initial middle sound and an initial surround sound corresponding to the stereo signal; in the initial middle sound, first azimuth information corresponding to the two channels is extracted, and target middle sound corresponding to the two channels is generated based on the first azimuth information; extracting second azimuth information respectively corresponding to the two channels from the stereo signal, and generating target surround sounds respectively corresponding to the two channels based on the second azimuth information; the second azimuth information is related to the initial surround sound; and performing virtual surround processing on the original audio based on the initial middle sound, the initial surround sound, the target middle sound and the target surround sound to obtain a multi-channel audio signal serving as a target audio. The target audio can keep the sound image position of the original audio as much as possible.

The application provides a workshop machine noise adsorption shielding room, which comprises a base, side plate assemblies are arranged on the top of the base, noise reduction assemblies are arranged in the side plate assemblies, drying assemblies are fixedly installed on the top of the side plate assemblies and extend into the noise reduction assemblies, a top plate is arranged on the top of the side plate assemblies, a hanging plate is fixedly installed on the bottom of the top plate, two groups of surrounding sound insulation structures are arranged on the hanging plate, sound insulation curtains are rolled on the surrounding sound insulation structures, and a supporting assembly is slidably installed on the top of the base; the surrounding sound insulation structure comprises a folding assembly and a transmission assembly, and the drying assembly comprises a cross arm, a sleeve, a gas guide port and an electric heating rod. The shielding room realizes the double-layer sound insulation and noise reduction effect through the surrounding sound insulation structure, the sound insulation structure can be automatically carried out and rolled up, the noise reduction of the equipment machine is met, and the actual regulation and control of the personnel on the machine are not hindered.

To provide an "audio signal processor" for down-mixing a surround audio signal so as to obtain an excellent sound image feeling.SOLUTION: This device is provided with a pseudo surround audio signal generating part 1 for generating a surround audio signal SigA of 7.1. 2ch from an inputted audio stereo signal SigIN of 4ch, a signal processing part 2 for processing the surround audio signal SigA and outputting it as a signal SigB for down mix, and a down mix part 3 for synthesizing the signal SigB for down mix and outputting a stereo audio signal SigOUT of 2ch. The signal processing unit 2 combines the input audio signal of each channel of the SigA with the audio signal obtained by convolving the head-related transfer function from the speaker corresponding to the audio signal to the listener at a ratio corresponding to the position of the speaker, and outputs the combined signal as the audio signal of the SigB.SELECTED DRAWING: Figure 1

This invention relates to the field of vehicle-mounted microphone technology and provides a microphone module and a method for maintaining the microphone module. The microphone module includes a housing, a circuit board disposed within a receiving cavity, an acoustic module connected to the circuit board and communicating with a sound hole, a sound-transparent protective component covering the sound hole, a vibration assembly arranged around the sound hole on the outside of the housing, and a control module. The control module enables the vibration assembly to transmit vibration to the sound-transparent protective component during operation, causing it to vibrate to clean adhering dust, particles, or liquid residue. The sound-transparent protective component, as the only passage between the sound hole and the outside, ensures sound wave transmission while blocking foreign objects from entering the receiving cavity and confining them to its surface or pores. The vibration assembly, arranged around the sound hole, concentrates vibration on the key area at the sound hole entrance, causing inertial shedding and removal of foreign objects, thereby actively restoring transparency, reducing acoustic channel impedance, improving sound pickup attenuation, and enhancing the reliability of the vehicle-mounted waterproof microphone.

The invention relates to a control method and device for stereo surround sound of intelligent equipment and the intelligent equipment, and the method comprises the steps: determining the audio position information of a first wearing position relative to an ear position based on the first wearing position of a first intelligent wearing component and the ear position of a current user, the first intelligent wearing component is the intelligent wearing component currently worn on the human body in the at least one intelligent wearing component; based on the audio position information, performing sound channel distribution on the audio signal, and determining an audio sound channel corresponding to each first intelligent wearable component; splitting the audio signal to obtain audio sub-signals correspondingly played by each audio channel; and playing the corresponding audio sub-signal through the first intelligent wearable component to obtain the three-dimensional surround sound of the intelligent wearable device relative to the human ear. According to the control method for the stereo surround sound of the intelligent device, the technical problem that multiple intelligent wearable devices cannot give out the stereo surround sound in a linkage mode can be solved.

The invention provides acoustic equipment and ear-hanging type hearing aid equipment. The acoustic equipment is used for assisting a user in acquiring sound transmitted from a neighborhood along a target direction, and the acoustic sensor module collects external sound from the outside of the acoustic equipment and internal sound emitted from the position of the loudspeaker module to generate a sensor signal; the signal processing circuit performs target operation based on the sensor signal to generate a driving signal; the loudspeaker module receives the driving signal and outputs loudspeaker sound meeting target sensitivity to surrounding sound, the target sensitivity is within a preset auditory frequency range, the acoustic equipment has directivity in distribution of sensitivity to external sound and has the highest value in the target direction, and the loudspeaker sensitivity to internal sound is lower than 3dB. The acoustic equipment not only has a good spatial pointing effect, but also can realize effective suppression of a squeal phenomenon, and provides better acoustic experience for a user.

Processes, methods, systems, and devices are disclosed for pairing a target device with a source device and pairing the target device with a partner device. A user may choose between using the target device and the partner device without actively connecting the partner device to the source device. The target device and the partner device may each be a specialized device providing certain functions. For example, the source device may be a computing device, such as a smart phone or a tablet computer. The target device may be a sound bar dedicated for playing high definition surround sound that outperforms internal speakers of the source device. And the partner device may be a noise-canceling headset. The user may want to seamlessly switch between playing sounds on the sound bard and the headset from time to time under different circumstances, without needing to manually pair the headset to the computing device.

The utility model provides a rotary screen, a combined screen and a spinning, relates to the technical field of sports equipment, and solves the problems that an existing spinning is mainly a mechanical part, and a user is boring and lacks sports experience feeling in the using process. The rotary screen comprises a rotary screen body capable of rotating by 360 degrees, a screen connecting assembly and a screen supporting pipe, the screen connecting assembly comprises a screen connecting plate detachably connected to the back face of the rotary screen body and a transverse rotary sleeve, and a vertical rotary sleeve is integrally formed on the outer wall of the transverse rotary sleeve. The vertical rotating sleeve is rotationally connected to the screen connecting plate through a rotating shaft; and the transverse rotating sleeve is rotationally arranged on the screen supporting tube between the lower limiting convex ring and the upper limiting cap in a sleeving manner. The spinning has the advantages that when the spinning is used, a user can watch fitness video courses, meanwhile, the spinning is matched with front and back sound boxes for 3D surrounding, and the experience feeling is better; the front and rear sound boxes are detachably mounted and are convenient to mount and dismount.

The system according to the embodiment aims to ensure the safety of a user by analyzing surrounding sounds to detect danger and providing route guidance to a destination. [Solution] A system according to an embodiment includes a collection unit, an analysis unit, a warning unit, a reception unit, a calculation unit, and a guidance unit. The collection unit collects ambient sounds. The analysis unit analyzes the sounds collected by the collection unit. The warning unit detects danger and issues a warning based on the results of the analysis by the analysis unit. The reception unit accepts input of a destination. The calculation unit calculates the most suitable route based on the information accepted by the reception unit. The guidance unit provides route guidance based on the route calculated by the calculation unit.

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.

1. The name of the design product: sound box set (M1). 2. The use of the design product: for sound box. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: set 1 perspective view 1. 5. Other circumstances that need to be explained: this application is a set product, wherein set 1 is a sound box host, set 2 and set 3 are surround sound box units.

The application provides a detachable hearing aid earphone applied to the field of hearing aid earphones, which comprises a wearing part, a magnetic back plate, a magnetic main machine and an earphone. The wearing part is connected with the magnetic back plate. The magnetic main machine is connected with the magnetic back plate through magnetism. The magnetic main machine is provided with a socket on both sides. The earphone is matched with the socket. The current technology is that the hearing aid device collects sound on the user's body and transmits the sound to the earphone through a wired connection. Because the sound collecting device of the hearing aid is worn on the user's body, the user's own voice is louder than the sound from a distance or the surrounding sound. The technology solves the technical problem that the user's voice and the surrounding sound are consistent when collected.

The invention relates to the technical field of heat preservation floor heating module manufacturing, in particular to a five-dimensional elastic sound insulation assembly type heat preservation floor heating module and a manufacturing method thereof.The floor heating module comprises a bottom elastic sound insulation heat preservation unit, a surrounding sound insulation protection unit and an embedded pipeline fixing heat conduction unit, and the bottom elastic sound insulation heat preservation unit, the surrounding sound insulation protection unit and the embedded pipeline fixing heat conduction unit cooperate to form an integrated structure; the bottom elastic sound-insulation modified polypropylene plate and the surrounding modified polypropylene sound-insulation heat-preservation plates enclose to form a box body, and the pipeline groove cement gypsum-based inorganic plate is embedded in the box body. The preparation method comprises the following steps: drying a modified polypropylene raw material, then carrying out injection molding to form the integrated box body, filling the box body with composite cement gypsum-based slurry, carrying out vibration compaction, and carrying out heat preservation and heat preservation. And after the groove mold is pressed, constant-temperature maintenance is conducted, demolding is conducted, and the five-dimensional elastic sound insulation assembly type heat preservation floor heating module is obtained. The module has excellent elastic sound insulation, heat preservation and uniform heat conduction performance, is prefabricated in a factory and quickly paved on site, can replace vertical sound insulation pieces around a room, avoids edge missing and corner falling of a cement gypsum-based inorganic plate, and is suitable for various building floor heating systems.

The application discloses a kind of multistage pump group frequency conversion level number collaborative control system, and the application relates to pump group frequency conversion control technical field, including pump group state monitoring module, noise characteristic database, frequency conversion level number collaborative control module, execution module;By real-time monitoring working condition data and dynamic control, the flow, pressure of pump group combined output is continuously close to demand value, avoid water shortage or pressure surplus, guarantee water supply quality;Significantly reduce pump group operating noise, rely on noise characteristic database to optimize frequency conversion frequency, realize total noise minimum under the condition of meeting working condition demand, improve surrounding sound environment, reduce personnel interference;Can realize energy saving and cost reduction, fine collaborative control each stage pump frequency, avoid energy waste, reduce pump body mechanical wear, prolong equipment life, reduce operation and maintenance cost;It also has strong flexibility and adaptability, can be flexibly set working condition demand according to actual scene, quickly respond to flow, pressure change.

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.

In the present invention, a pseudo sound intensity vector is obtained by using sound signals collected by a wearable device. Accordingly, a pseudo ambisonics signal generation apparatus according to the present disclosed technology is provided with a spherical coordinates acquisition unit, a calculation unit, and a signal extraction unit. The spherical coordinates acquisition unit acquires respective spherical coordinates of microphones, by setting, as the origin, the intersection between a straight line passing the center of the left and right ears and a plane dividing the face symmetrically into left and right sides. The calculation unit calculates an average value of the radii of the spherical coordinates and replaces the respective radii of the spherical coordinates with the average value. The signal extraction unit generates a pseudo ambisonics signal by using the spherical coordinates replaced with the average value, and sound signals acquired by the microphones.

The application provides an audio playing method, a vehicle-mounted audio system and a storage medium. The audio playing method is applied to the vehicle-mounted audio system (including a plurality of loudspeaker modules arranged at different positions in a vehicle cabin), and comprises: acquiring an audio signal to be played; decomposing the audio signal to obtain a plurality of sound source signals of different categories, wherein each sound source signal comprises a plurality of sub-sound source signals of the same category; establishing a route between all sub-sound source signals and the plurality of loudspeaker modules according to a preset distribution principle, wherein the preset distribution principle indicates a rule that different sub-sound source signals are played through different loudspeaker modules; and playing each sub-sound source signal through a corresponding loudspeaker module according to the route. The application provides more accurate and immersive vehicle-mounted multi-channel surround sound playback, which can effectively improve the overall acoustic experience effect of the vehicle-mounted audio system.

1. Name of this design product: Speaker stand tray (compatible with Harman Kardon Crystal Series). 2. Purpose of this design: Tray for floor stands of surround sound speakers and audio equipment. 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.

One embodiment provides a computer-implemented method that includes determining directional sounds from a content mix using a machine learning unmixing model. The directional sounds are panned in an upmixed signal. Signal-dependent upmixing gains for specific frequency bins are computed on a frame-basis using a machine learning model for the upmixed signal. Dedicated voice clarity gains are computed using a hearing impairment model for multiple hearing-impaired profiles for achieving dialog enhancement. The signal dependent upmixing gains and voice clarity gains are transmitted as metadata with a downmixed signal representing the content mix.

The utility model relates to the technical field of home production, in particular to a voice intelligent ceiling sound box structure. The device comprises a base, an outer cylinder cover plate, a conveying mechanism and a control mechanism, the conveying mechanism comprises an inner bottom plate, an inner cylinder and at least three limiting rods, the limiting rods penetrate through the inner bottom plate, the bottom ends of the limiting rods abut against the base so that a containing space can be formed between the base and the inner bottom plate, and a first square groove is formed in the upper surface of the inner bottom plate; the bottom of the inner cylinder is embedded into the first square groove, and a loudspeaker assembly is arranged on the side wall of the inner cylinder; the multifunctional sound box can be used as a stool or a flowerpot rack, and can also be used as a sound box for playing music, and through the cavity-in-cavity design of the transmission mechanism and the control mechanism in the multifunctional sound box and the transmission design of the inner cylinder and the outer cylinder, the quality and stability of the sound quality are ensured, and the purposes of surround sound quality and uniform sound production of the sound quality are achieved.

This invention belongs to the field of indoor acoustic effects technology and discloses a sound reflector structure for indoor ceilings and its installation method. The sound reflector structure includes: a frame; a top plate; a spherical panel, with a first overlapping edge and a second overlapping edge forming an overlapping seam; the surface of the spherical panel has a water ripple texture to reflect and diffuse incoming sound waves; and a first filler material to fill the overlapping seam so that the spherical panel and the top plate fit together to enclose the frame; the spherical panel, the top plate, and the first filler material are all made of GRG material. This invention improves the sound field strength and reduces low-frequency absorption by designing the sound reflector with a unique water ripple texture and a specific curved surface calculated acoustically, and by using GRG material with superior acoustic performance. This improves the reverberation time and surround sound effect in the auditorium, achieving a balance between early and late reflections, thus realizing a purely natural sound environment.