15 results about "Room acoustics" patented technology

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.

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.

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. 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.

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.

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 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.

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.

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.

The invention provides an edge covering decoration plate, a prefabricated sound absorption plate, a prefabricated sound insulation plate and an assembly type wall body, the edge covering decoration plate is formed through tile pressing, and the production efficiency is high; meanwhile, the sound attenuation materials are filled, the edge covering decoration plates are matched with the sound attenuation materials to form the prefabricated sound absorption plates and the prefabricated sound insulation plates, the male tongue-and-groove structures and the female tongue-and-groove structures arranged on the edge covering decoration plates are more efficient and convenient in the splicing process, the tenon type connecting structures are more tightly attached, and the sound insulation effect is improved; the whole fabricated wall body is constructed to meet the rear-mounted sound insulation requirement and the mounting standard for improving the sound insulation effect; according to the invention, an efficient silencing material is adopted for sound absorption and sound insulation, so that the sound wave isolation and elimination effects are improved, the decoration is considered, and the indoor acoustic environment optimization requirements of a building are met; moreover, the installation process is simple and convenient, the sound insulation and sound absorption effects are remarkable, the construction cost is reduced, and the construction efficiency is improved.

The invention relates to a room acoustic element (1) for mounting on a sound-hard wall (20) and / or ceiling comprising a support frame (3), a sound-absorbing absorber (4) enclosed in the support frame (3), and a fabric covering (2) made of a sound-permeable textile material covering the support frame (3) which is open to a visible side (16), wherein the fabric covering (2) is stretched on the support frame (3) in such a way that a first air gap (5) is provided between the fabric covering (2) and the absorber (4), wherein the fabric covering (2) has a defined three-dimensional surface which is raised at least in sections towards the visible side (16) relative to the support frame (3) for the defined setting of a volume content and / or a volume shape of the first air gap (5).