34 results about "Room acoustics" patented technology

The invention discloses a muffling device, an air conditioner and a muffling control method.The muffling device comprises a shell, an acoustic metamaterial structure and a sound conduction interface, the acoustic metamaterial structure is arranged in a muffling cavity of the shell and is constructed to be a continuous swirling flow channel capable of prolonging a sound wave propagation path in the muffling cavity, and the sound conduction interface is arranged in the shell; the sound conduction interface is arranged at the joint of the shell and the valve pipe. Noise firstly enters the shell through the sound conduction interface, so that sound wave reflection loss is avoided; in the silencing cavity, the continuous swirling flow channel of the acoustic metamaterial structure forces the propagation path of sound waves to be greatly prolonged in a limited space, so that low-frequency resonance noise is effectively inhibited; meanwhile, a physical closed environment provided by the shell isolates external aging factors, and the problems that a traditional rubber damping material loses efficacy due to hardening and the performance of sound insulation cotton is degraded are solved; according to the invention, the risk of new resonance caused by frequency deviation is fundamentally avoided, and synchronous control and long-term reliable noise elimination of low-frequency noise are realized.

1. The name of the design product: room low frequency calibration device. 2. The use of the design product: the design product is mainly used for the improvement and calibration of room acoustics in architectural acoustics, decoration. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: assembly state perspective view.

The invention relates to the technical field of voice recognition, and particularly discloses a building indoor acoustic noise reduction and sound absorption optimization system based on deep learning. The system comprises a sound field perception and data acquisition module, a cross-environment acoustic feature extraction module, a meta-learning driving model rapid adaptation module, a multi-target acoustic optimization decision module and a distributed sound absorption actuator control module, rapid model adaptation is realized through meta-learning, parameters are finely adjusted by using a small amount of field data, and the sound absorption performance is improved. And in combination with a multi-objective optimization algorithm, acoustic indexes such as voice definition, noise suppression and space sense maintenance are balanced, and finally, the sound absorption unit is dynamically regulated and controlled through the distributed actuator, so that efficient and accurate indoor acoustic environment optimization is achieved.

A method for optimizing acoustic performance in listening spaces addresses limitations in room acoustics for music production and reproduction. The method comprises two optimization steps: a multi-objective room optimization method applicable to any room shape and a multi-objective treatment optimization method that iteratively searches a library of potential acoustical treatments to determine optimal solutions for each accessible area. The method utilizes a multi-objective search engine to simultaneously optimize several critical acoustic metrics, including low-frequency response, spatial variation around listening positions, early reflections, modal temporal decay, and mid-to-high-frequency reverberation time. The integration of both optimization methods provides comprehensive acoustic control across the entire audible spectrum.

The invention provides a model training method, a snore recognition method and related equipment, and is applied to the technical field of information processing. Performing multiple times of iterative training on the preset model based on the training data set until a target condition is reached, and obtaining a trained preset model; and generating a snore recognition model based on a feature extractor and a label classifier included in the trained preset model. In the method, the feature extractor in the obtained snore recognition model has good capability of extracting the public acoustic features irrelevant to the domain, so that the influence of the difference of sound recording equipment and room acoustics caused by different model deployment environments on the snore recognition model can be reduced, and the recognition accuracy of the snore can be improved.

The application discloses a floor heating simulation design method and device, equipment and a storage medium. The method comprises the following steps: obtaining building design house type data; obtaining a house type geometric model of the building design house type decoration material arrangement according to the building design house type data; obtaining an indoor acoustic simulation space model of a set building house type according to the house type geometric model of the building design house type decoration material arrangement and setting position information of a sound source device in the house type geometric model; obtaining an indoor acoustic simulation space grid model and a field distribution of an indoor acoustic design variable according to the indoor acoustic simulation space model of the set building house type and grid division of the indoor acoustic simulation space model. The application can understand whether the current indoor design can fully meet the sound insulation demand by obtaining the required house type for design and simulation, so as to adjust the use and layout of the sound insulation material and create a comfortable acoustic environment.

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.

The present invention introduces a novel approach to sound absorption in cross-laminated timber (CLT) panels by integrating acoustic absorption into the bottom ply. This eliminates the need for external sound absorbing finishes which are costly and obscure the exposed wood aesthetic. Comprised of channels filled with sound-absorbing material, the absorbers target a broad range of frequencies relevant to architectural applications. This feature is incorporated within the standard CLT lay-up and glueing process. By strategically removing material where it minimally affects panel strength, the CLT panels maintain robustness as a structural member, enhancing room acoustics while preserving the natural wood aesthetics and structural qualities of CLT. In architectural and construction contexts, this integration of acoustic absorption offers a practical and efficient solution to a known limitation of mass timber construction.

The invention relates to the technical field of architectural acoustic materials, in particular to an acoustic material recommendation method and system based on an indoor model, and the method comprises the steps: constructing a three-dimensional model according to an architectural plane graph, and carrying out the partitioning according to purposes to obtain a target region; adding a candidate acoustic material for the target area; determining the position of the sound source in the three-dimensional model; adding household articles with matched purposes to each target area according to user requirements; under the sound source sound production condition, multi-area sound field distribution is synchronously collected based on candidate acoustic material performance parameters; and screening adaptive acoustic materials from the candidate materials in combination with sound field distribution and acoustic requirements of each area. According to the invention, through scene modeling and data driving screening, the acoustic material is matched with the indoor scene, the function requirement and the personalized demand, the scientificity and the accuracy of material selection are improved, the functionality and the comfort degree of the indoor acoustic environment are guaranteed, and an efficient and feasible solution is provided for indoor sound field optimization.

1. The name of the design product: room low frequency calibrator. 2. The use of the design product: the design product is mainly used for the improvement and calibration of room acoustics in architectural acoustics, decoration. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

This invention discloses a smart speaker sound field adjustment method and a smart speaker system, comprising the following steps: S1: Initialize scanning and store indoor acoustic baseline data, which serves as a benchmark for subsequent sound field adjustment effects; S2: Based on the baseline data of step S1, collect multi-dimensional environmental and scene data in real time and complete preprocessing, with the preprocessed data providing effective input for instruction generation in step S3; S3: Based on the effective data preprocessed in step S2, generate precise sound field adjustment instructions through the MoE intelligent decision layer, which directly drives the sound field construction action in step S4; This invention relies on a closed-loop architecture of multi-modal perception layer + MoE intelligent decision layer + collaborative execution layer, and the closed-loop adjustment method of S1-S5, which can integrate multi-dimensional acoustic, environmental, and scene data, breaking through the limitation of traditional single-modal adjustment relying on only a single data, enabling sound field adjustment to accurately adapt to different media characteristics, environmental parameters, and scene requirements.

1. The name of the design product: room sound delay diffusion and calibration device. 2. The use of the design product: the design product is mainly used for the improvement and calibration of room acoustics in architectural acoustics, decoration. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

As shown in the reference perspective view showing the usage state, this product is an acoustic adjustment component that is installed freestanding on the floor of a room and adjusts the room acoustics by absorbing sound waves. The product's approximate dimensions in the front view are approximately 3000 mm in height. The product comprises a column and legs. The column has an internal sound-absorbing section made of materials such as PET nonwoven fabric, glass wool, and urethane, and the sound-absorbing section is covered with a surface layer made of a sound-transmitting fabric. The column's cross-section has a roughly right-angled triangular shape with rounded vertices and an arc-shaped hypotenuse. The rounded vertices of the column's cross-section soften shadows, giving the product a gentle impression in the space in which it is installed and helping the product blend into the space. The column's roughly right-angled triangular cross-section allows for space-saving installation in a corner of a room.

As shown in the reference perspective view showing the usage state, this product is an acoustic adjustment component that is installed freestanding on the floor of a room and adjusts the room acoustics by absorbing sound waves. The product's approximate dimensions in the front view are approximately 3000 mm in height. The product comprises a column and legs. The column has an internal sound-absorbing section made of materials such as PET nonwoven fabric, glass wool, and urethane, and the sound-absorbing section is covered with a surface layer made of sound-transmitting fabric. The column has a cross-sectional shape that is approximately a right-angled triangle with rounded vertices and an arc-shaped hypotenuse. The rounded vertices of the column's cross-sectional shape soften shadows, giving the product a gentle impression in the space in which it is installed and helping the product blend into the space. The column's cross-sectional shape is approximately a right-angled triangle, allowing it to be installed in a corner of a room in a space-saving manner.

A locking dynamic high NRC acoustic baffle and / or tile and a locking dynamic high NRC ceiling and / or wall system, that includes a single piece of material folded into locking dynamic high NRC acoustic baffles and / or tiles, using locking pieces and locking mechanisms, to quickly and easily install the locking dynamic high NRC acoustic baffle and / or tile onto construction ceiling hangers or onto walls to provide an aesthetically pleasing image, along with a reduction in unwanted noise or room acoustics.

1. Name of the designed product: two-dimensional calibration device. 2. Use of the designed product: the designed product is mainly used for the device for improving and calibrating room acoustics in architectural acoustics, decoration. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view.

The invention relates to the technical field of noise control engineering and indoor acoustics, in particular to an ultra-wideband sound absorption unit based on a back cavity of a micro-perforated plate filled with a porous sound absorption material and a sound absorber. Each unit comprises a micro-perforated plate, a porous sound absorption material and a back cavity shell; a containing cavity is formed in the back cavity shell, and the micro-perforated plate covers an opening of the containing cavity; the containing cavity is filled with the porous sound absorption material which is attached to the inner side wall of the containing cavity, and an air channel extending in the depth direction is defined in the center area of the containing cavity. Thin air layers are arranged between the micro-perforated plate and the porous sound absorption material and between the micro-perforated plate and the air channel. According to the unit, ultra-wide-band efficient sound absorption from low frequency to high frequency can be achieved through a small number of ultra-wide-band sound absorption units, and the unit has the advantages of being simple in structure and high in rigidity.

As shown in the reference perspective view showing the usage state, this product is an acoustic adjustment component that is installed freestanding on the floor of a room and adjusts the room acoustics by absorbing sound waves. The product's approximate dimensions in the front view are approximately 1800 mm in height. The product comprises a column and legs. The column has an internal sound-absorbing section made of materials such as PET nonwoven fabric, glass wool, and urethane, and the sound-absorbing section is covered with a surface layer made of sound-transmitting fabric. The column's cross-section has a roughly right-angled triangular shape with rounded vertices and an arc-shaped hypotenuse. The rounded vertices of the column's cross-section soften shadows, giving the product a gentle impression in the space in which it is installed and helping the product blend into the space. The column's roughly right-angled triangular cross-section allows for space-saving installation in a corner of a room.

The disclosure herein pertains to generation and output of a loudspeaker emulating audio signal that emulate a loudspeaker listening experience via a device other than the loudspeaker(s) used to conventionally generate the loudspeaker listening experience. A method comprises: receiving an audio signal; applying a loudspeaker acoustics filter, a room acoustics filter, and an inverse headphone acoustics filter to the audio signal to generate a loudspeaker emulating audio signal that includes characteristics of a loudspeaker system and a room; and outputting the loudspeaker emulating audio signal via a headphone set.

Disclosed are systems and methods for rendering personal sound zones (PSZs) with head tracking using multiple loudspeakers, utilizing a Spatially Adaptive Neural Network (SANN) to dynamically generate and update audio filters that create acoustically bright and dark zones based on the listener head positions. First, the SANN encodes listener head coordinates and outputs corresponding PSZ filters as either time-domain impulse responses or frequency domain complex -valued coefficients. Then, acoustic transfer functions (ATFs) corresponding to the rendering loudspeakers and control points within PSZs are simulated at random room acoustics conditions and optionally measured in a specific rendering environment. The combined ATFs along with a unified loss function that incorporates multiple PSZ design objectives, are utilized in training the SANN for randomly sampled listener positions within the rendering area. Finally, the trained SANN is used for generating PSZ filters in real-time given a stream of head position data from a head tracking device.

As shown in the reference perspective view showing the usage state, this product is an acoustic adjustment component that is installed freestanding on the floor of a room and adjusts the room acoustics by absorbing sound waves. The product's approximate dimensions in the front view are approximately 3000 mm in height. The product comprises a column and legs. The column has an internal sound-absorbing section made of materials such as PET nonwoven fabric, glass wool, and urethane, and the sound-absorbing section is covered with a surface layer made of a sound-transmitting fabric. The column has a cross-sectional shape that is approximately a right-angled triangle with rounded vertices. The rounded vertices of the column's cross-sectional shape soften shadows, giving the product a gentle impression in the space in which it is installed and helping the product blend into the space. The column's cross-sectional shape is approximately a right-angled triangle, allowing it to be installed in a corner of a room in a space-saving manner.

The invention relates to a safety system (1) with a detector (2) for structural damage in an electrolysis stack (3) with a plurality of electrolysis cells (4), wherein the detector (2) can be configured as an optical sensor, ultrasonic sensor, contact strip for mechanical detection, room acoustic monitoring, structure-borne sound monitoring at end plates of the electrolysis stack, or as sensors in blind flanges, gas distributors, or gas collectors. The invention further relates to an electrolysis plant with such a safety system (1) and a method for detecting structural damage in an electrolysis stack (3).

The present invention introduces a novel approach to sound absorption in cross-laminated timber (CLT) panels by integrating acoustic absorption into the bottom ply. This eliminates the need for external sound absorbing finishes which are costly and obscure the exposed wood aesthetic. Comprised of channels filled with sound-absorbing material, the absorbers target a broad range of frequencies relevant to architectural applications. This feature is incorporated within the standard CLT lay-up and glueing process. By strategically removing material where it minimally affects panel strength, the CLT panels maintain robustness as a structural member, enhancing room acoustics while preserving the natural wood aesthetics and structural qualities of CLT. In architectural and construction contexts, this integration of acoustic absorption offers a practical and efficient solution to a known limitation of mass timber construction.

The present specification discloses a scene sound restoration system and method, and relates to the technical field of indoor acoustic experiments. The system comprises a plurality of adjustable sound absorption modules and test equipment. The adjustable sound absorption module comprises a shell, a plurality of sound absorption components stacked in the shell, an extension component for moving the plurality of sound absorption components, and a fixing component for fixing the adjustable sound absorption module. The plurality of sound absorption components can move under the push and pull of the extension component. When the plurality of sound absorption components respectively move to the respective farthest distances, the exposed front area is greater than the front area of the shell. It can be seen that the area ratio of the sound absorption component to the scene surface area changes by more than 50%, and the area of the sound absorption material has a great influence on the size of the reverberation time in the space. Therefore, the scene sound restoration system can adjust the reverberation time under the scene in a large range.

The utility model discloses a micro-arc perforated acoustic decorative aluminum strip plate with ribs, which comprises an aluminum strip plate body, the middle of the aluminum strip plate body is provided with a radian along the width direction, the middle of the aluminum strip plate body forms an aluminum strip plate cambered surface through the radian, and a plurality of uniformly distributed through holes are arranged on the aluminum strip plate cambered surface. Rib grooves in the length direction of the aluminum strip plate body are formed in the two sides of the aluminum strip plate arc face, the penetrating hole is located between the two rib grooves, and the rib grooves protrude towards the circle center of the aluminum strip plate arc face. The aluminum strip plate is arranged to be of the cambered surface structure, the rib grooves are additionally formed in the cambered surface structure, the penetrating holes are formed in the cambered surface structure, on the premise that the structural stability of the aluminum strip plate is guaranteed, the soft and flexible feeling is added visually, the attractiveness of the aluminum strip plate is improved, and the service life of the aluminum strip plate is prolonged. And the ideal acoustic effect can be achieved by adjusting reflection and absorption of sound through the through holes, the indoor acoustic environment is improved, and the practicability is very high.

1. Name of the designed product: three-dimensional calibration device. 2. Use of the designed product: the designed product is mainly used for the device for improving and calibrating room acoustics in architectural acoustics and decoration. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view.

As shown in the reference perspective view showing the usage state, this product is an acoustic adjustment component that is installed freestanding on the floor of a room and adjusts the room acoustics by absorbing sound waves. The product's approximate dimensions in the front view are approximately 1800 mm in height. The product comprises a column and legs. The column has an internal sound-absorbing section made of materials such as PET nonwoven fabric, glass wool, and urethane, and the sound-absorbing section is covered with a surface layer made of a sound-transmitting fabric. The column has a cross-sectional shape that is approximately a right-angled triangle with rounded vertices. The rounded vertices of the column's cross-sectional shape soften shadows, giving the product a gentle impression in the space in which it is installed and helping the product blend into the space. The column's cross-sectional shape is approximately a right-angled triangle, allowing it to be installed in a corner of a room in a space-saving manner.

The utility model discloses a section bar of a silence door frame in the technical field of silence door frames, which comprises a main section bar body, a plurality of chamber structures which have different functions and are mutually associated are arranged in the main section bar body, so that the door frame is optimized in the aspects of sound insulation, shock absorption, convenience in installation and the like, correlated cavity structures are arranged in the main profile body, for example, a first sound insulation cavity with the largest volume is formed in the left side of a damping cavity, efficient sound insulation materials such as sound absorption cotton and sound insulation foam are filled in the damping cavity, and a second sound insulation cavity capable of being filled with sound insulation materials is formed in the right side of an accessory mounting cavity. And meanwhile, the damping assembly is installed in the damping cavity to reduce noise generated by vibration. The purpose of greatly improving the sound insulation performance of the door frame is achieved, various external noise is effectively prevented from entering a room, traffic noise, neighborhood noise and natural environment noise can be efficiently isolated, and the effect of creating a quiet and comfortable indoor acoustic environment for a user is achieved.

As shown in the reference perspective view showing the usage state, this product is an acoustic adjustment component that is installed freestanding on the floor of a room and adjusts the room acoustics by absorbing sound waves. The product's approximate dimensions in the front view are approximately 1800 mm in height. The product comprises a column and legs. The column has an internal sound-absorbing section made of materials such as PET nonwoven fabric, glass wool, and urethane, and the sound-absorbing section is covered with a surface layer made of sound-transmitting fabric. The column's cross-section has a roughly right-angled triangular shape with rounded vertices and an arc-shaped hypotenuse. The rounded vertices of the column's cross-section soften shadows, giving the product a gentle impression in the space in which it is installed and helping the product blend into the space. The column's roughly right-angled triangular cross-section allows for space-saving installation in corners of a room.