25 results about "Sound localization" patented technology

The invention relates to the field of gas leakage identification, and discloses a gas leakage identification method and system based on sound localization, a medium and equipment, and the method comprises the steps: collecting a leakage sound wave signal through a microphone array, and extracting acoustic features in a complex background; simulating a diffusion process of gas in a turbulence environment after gas leakage through an established leakage gas convection-diffusion model, and combining gas concentration distribution in the simulated diffusion process with acoustic characteristics to predict sound source localization at a leakage position; modeling a sound source localization search process as POMDP, and iteratively updating a confidence state of a sound source position through a particle filter; spatial distribution features are extracted from the confidence state through DBSCAN clustering to serve as input of the LSTM-DQN network, spatial and temporal features are fused through the constructed LSTM-DQN network, cross-scene generalization is achieved through transfer learning, and sound source coordinates are dynamically optimized and output through the Q network. According to the invention, the positioning accuracy and real-time performance in a complex environment are improved.

The invention relates to the technical field of desktop robots, and discloses a wheel type desktop accompanying robot, a control system and a control method of the wheel type desktop accompanying robot. Comprising a robot frame composed of a power supply trunk part, a moving part, limb parts and a head part, a camera module is embedded in the nose protrusion of the head part, a laser radar is installed in the forehead area of the head part, a sound positioning mainboard is installed behind the power supply trunk part, sound collection microphones distributed in an array mode are arranged on the sound positioning mainboard, and the sound collection microphones are connected with the power supply trunk part. The moving part comprises two moving wheels which are distributed triangularly and have collinear axes and a wheat wheel; according to the technical scheme, a multi-mode sensing fusion framework is constructed, visual, auditory and environment sensing data are integrated, real-time interaction and complementary verification are achieved through a communication framework, the problem that single-mode sensing is prone to being interfered by light, noise and shielding is solved, an upper main control board focuses on intelligent algorithm operation and decision logic output, and the real-time interaction and complementary verification are achieved. The lower-layer auxiliary control board is responsible for hardware driving and state feedback, and instruction execution synchronism is improved.

A audio system comprises an analysis unit, configured to receive and analyze a first number of audio signals, an ambient sound unit, configured to determine one or more ambient sounds related to the semantic information of the first number of audio signals obtained by the analysis unit, a sound placement unit, configured to determine a placement of the one or more ambient sounds determined by the ambient sound unit in one or more audio signals of the first number of audio signals, or in one or more processed audio signals of a second number of processed audio signals, and a combiner to combine the one or more ambient sounds with one or more audio signals of the first number of audio signals or with one or more processed audio signals of the second number of processed audio signals, to generate a second number of audio output signals.

An automatic speaker registration method and system, in which an image is captured by a camera, image data is generated, a face position of a person is identified from the image data, a microphone array is used for sound reception, voice data is generated, a sound source direction is estimated by using a sound localization technique, and then a target speaker is matched according to the face position of the person and the sound source direction. Especially, whether a target speaker is within an effective geometric range is confirmed, so that voice generated by the target speaker in the direction of the target speaker can be recorded, voice enhancement is performed, and speaker characteristics of the target speaker registered in a specific system are formed.

A conference speech presentation system, a sound localization method and apparatus, a conference system and a pickup device. The method includes the following steps: collecting (S101) a multi-channel voice signal through a directional microphone array; determining (S103) a steering vector including phase information and amplitude information according to array shape information and microphone pointing direction information; determining (S105) sound direction information according to the steering vector and the voice signal. By adopting this processing mode, both the phase information and the amplitude information are considered when determining the steering vector, which can effectively improve the accuracy of sound localization.

A vehicle system uses OEM sensors and OEM speakers to spatially convey, inside the cabin, the location and distance of real-world entities relative to a driver. A processor determines a directional bearing and, when available, a distance from proximity sensors, integrated cameras, or a directional microphone. An audio generation module produces a warning that is routed only to the speakers on the side that corresponds with the bearing, with audio gain set as a function of distance so closer entities sound louder. For emergency vehicles, the system synthesizes a siren or isolates and re-broadcasts the original siren, then plays the siren only through the speakers that correspond with the detected bearing. An interior microphone gates synthesis when the original siren is already audible. The approach enables drivers to localize pedestrians and other hazards by sound.

The present disclosure discloses a sound transducer including a substrate; a back plate mounted on the substrate; a back plate electrode mounted on a side of back plate facing the substrate, including a plurality of first electrode plates arranged at intervals; a diaphragm electrode opposite to the back plate along a first direction, including: a plurality of second electrode plates arranged at intervals; and a center pillar arranged between the back plate and the diaphragm electrode, extending along the first direction; the plurality of first electrode plates surrounds the center pillar; the plurality of second electrode plates surrounds the center pillar; each second electrode plate is flexibly connected to the center pillar. The sound transducer in the present disclosure has sound localization function.

A sound image localization processing method includes inputting a sound source signal of a same sound source and localization information of the sound source to a first signal processing unit and a second signal processing unit; generating the first sound signal by subjecting the sound source signal to first localization processing based on the localization information and position information of the first speaker group to localize a sound of the sound source at a position indicated by the localization information; and generating the second signal by subjecting the sound source signal to second localization processing based on the localization information and position information of the second speaker group to localize the sound of the sound source at the position indicated by the localization information.

A sound image localization processing method includes inputting a sound source signal of a same sound source and localization information of the sound source to a first signal processing unit and a second signal processing unit; generating the first sound signal by subjecting the sound source signal to first localization processing based on the localization information and position information of the first speaker group to localize a sound of the sound source at a position indicated by the localization information; and generating the second signal by subjecting the sound source signal to second localization processing based on the localization information and position information of the second speaker group to localize the sound of the sound source at the position indicated by the localization information.

A method and a system for automated speaker enrollment are provided. In the method, a camera is used to capture image data so that a facial position of a person can be recognized, a microphone array is used to generate speech data, and a sound localization technology is used to estimate a sound source direction. A target speaker can be determined by matching the facial position and the direction toward the sound source, and more particularly whether the target speaker is within a valid geometric range. After that, the speech produced by the target speaker along a target speaker direction is recorded, and the speech can be enhanced for generating speaker features with respect to the target speaker for enrolling to a specific system.

The utility model relates to the technical field of sound positioning, and discloses a sound positioning device based on a microphone array, which comprises a fixed shell, a power supply interface is fixedly arranged on the front side surface of the fixed shell, the power supply interface is electrically connected with a signal processing device, and the signal processing device is fixedly arranged on the inner surface of the fixed shell. And an array microphone is mounted at the upper end of the signal processing device. According to the sound positioning device based on the microphone array, the position of the adjusting plate is adjusted, so that the sound positioning device can be clamped and fixed on robots with different sizes without being fixed by screws, and the situation that the sound positioning device cannot be mounted and fixed due to the position deviation of holes formed in different robots can be effectively avoided; the sound positioning device is simple in structure and convenient to use, rapid and lossless disassembly and assembly can be achieved in a clamping and fixing mode, more convenience and rapidness are achieved, the sound positioning device can be clamped on robots with different shapes through rotation of the rotating plate, and the use range of the sound positioning device is widened.

A signal-processing method has the steps of: obtaining a plurality of signal components from an input signal, the plurality of signal components including a plurality of perceptual feature components, and further including a first-directional signal component, a second-directional signal component, a non-directional signal component, or a combination thereof; using at least a pair of filters to filter each of the plurality of signal components into a filtered first-directional signal and a filtered second-directional signal, thereby forming a group of filtered first-directional signals and a group of filtered second-directional signals; and obtaining a first output signal and a second output signal for outputting and / or analysis, the first output signal including a combination of the group of filtered first-directional signals, and the second output signal including a combination of the group of filtered second-directional signals.

This invention provides a method and robot for recognizing cattle mooing based on deep hearing, belonging to the field of sound localization technology. The recognition method includes: acquiring the sound signal of the cattle moo to be recognized; extracting low-level descriptors from each frame of the sound signal and calculating their statistics to obtain a statistical feature vector; preprocessing and extracting features from the sound signal to obtain Fbank features; inputting the Fbank features into an improved CRNN model to obtain a deep feature vector; fusing the statistical feature vector and the deep feature vector to obtain a mooing classification result; calculating the mooing location information based on a sound source localization method; and combining the classification result and location information to obtain the cattle mooing recognition result. This invention achieves accurate classification and real-time dynamic location localization of cattle mooing in complex noise environments in pastures, while also considering the requirements of lightweight model design and embedded robot integration, providing technical support for precise cattle management in smart pastures.

The application relates to the technical field of underground pipe network monitoring, in particular to an urban underground pipe network intelligent monitoring device and a monitoring method, which comprises a sound positioning mechanism arranged in a pipe gallery and a control center, the sound positioning mechanism is electrically connected with the control center, a mobile monitoring mechanism is arranged in the pipe gallery, the mobile monitoring mechanism comprises a 3D camera and a moving assembly, the 3D camera slides in the pipe gallery through the moving assembly and is used for monitoring a section of pipe network; the 3D camera is electrically connected with the control center, the moving assembly is electrically connected with the control center, after receiving a water leakage sound signal, the control center controls the moving assembly to drive the 3D camera to move to a sound source position to collect images and confirm whether water leaks, and the control center collects monitoring signals and reminds monitoring personnel. The application has the effect of improving the positioning accuracy of water leakage points.

The invention according to the present disclosure relates to an in-wheel drive electric vehicle capable of directed sound emission and a method of operation thereof comprising at least two sound emitting direct drive mechanisms and a sound localisation unit capable of calculating and applying phase delays, amplitude modulation, frequency modulation and other relevant dependencies between at least two sounds emitted from the at least two direct drive mechanisms in a manner in which the maximum or minimum sound level is achieved towards a desired direction using the sum of both sounds emitted from the at least two direct drive mechanisms.

The embodiment of the utility model provides a remote control key. The remote control key comprises a shell, a controller and a sounder. The controller is arranged in the shell and used for sending a lock body control signal, the sounder is electrically connected with the controller, and the controller can control the sounder to make a sound. According to the remote control key, the sounder is arranged, so that when the remote control key is lost, a user can control the sounder to make a sound by sending the control instruction to the controller, the remote control key is positioned according to the sound, and the retrieval probability of the remote control key is improved.

This invention provides an audio signal processing method that can achieve appropriate sound localization processing regardless of the distribution platform. [Solution] The sound signal processing method is used in a sound signal processing system composed of multiple terminals that output sound signals. Each of the multiple terminals outputs a video signal containing unique identification information for each terminal, acquires localization control information that is generated based on the identification information and determines the sound image localization position of the terminal in the sound signal processing system, applies localization processing to the sound signal of the terminal based on the acquired localization control information, and outputs the sound signal after the localization processing has been applied.

This invention relates to a smart microphone stand system that detects the direction of a sound source through sound localization and automatically orients toward the sound source using a pan-tilt mechanism controlled by a microcontroller circuit (12). Compared to stationary microphone stands, the system offers improved ease of use and operational efficiency, thanks to its ability to dynamically track sound sources. The invention eliminates the need for manual directional adjustment required in conventional systems. It provides enhanced sensitivity in speaker tracking and effective noise reduction, thereby offering a comprehensive solution in various fields, including the audio industry, education, conferences, broadcasting, voice command systems, and security implementations.

The present application relates to the security monitoring technical field, specifically to a kind of automatic sound positioning security monitoring method, equipment and storage medium.It includes the following steps:S1, the sound signal in monitoring area is collected;S2, current time information is obtained, and current time slot is determined according to preset time slot division rule;S3, the white list sound category subset corresponding to current time slot is loaded;S4, the sound feature vector is input into sound recognition model;S5, the identification result is matched with current effective white list, preset blacklist and preset red signal category;S6, the statistical data of sound event in each time slot is recorded.Through the introduction of time slot mechanism, static white list is upgraded to dynamic white list matrix of time dimension, so that the system can automatically adapt to the background sound change in different time periods, effectively reduce the false alarm rate in night and other special periods.

A localized sound projection system can coordinate the sounds of speakers to simulate the placement of an auditory cue in a 3D space. The system can include a plurality of speakers configured to output auditory signals and a sound localization controller configured to control the plurality of speakers to coordinate the auditory signals to simulate an origination location of a patient alarm. The sound localization controller can determine adjusted auditory signals and control a plurality of speakers to output the plurality of adjusted auditory signals. A method for dynamically controlling speaker settings in a medical environment can include determining volume settings corresponding to a speaker, monitoring a level of ambient noise corresponding to a room of a patient, controlling the volume settings of the speaker to reduce or increase a sound level output of a speaker.

The invention relates to the technical field of inspection equipment, in particular to an inspection monitoring device for an unattended power distribution station and an inspection method.The inspection monitoring device for the unattended power distribution station comprises an inspection trolley body and a sound positioning module, and a box is installed at the top of a base; a camera shooting assembly for realizing simultaneous monitoring in four directions is mounted on the box body and comprises a longitudinal adjusting assembly fixed in the box body, a first mounting seat is connected to the outer wall of one end of the first rotating shaft, a first camera is mounted on the first mounting seat, a second mounting seat is connected to the outer wall of one end of the second rotating shaft, and a second camera is mounted on the second mounting seat; the sound positioning module comprises a sound pickup, a positioner and a controller, the sound pickup is arranged on the peripheral surface of the box body, and the positioner is arranged on the inspection trolley main body. According to the inspection monitoring device for the unattended power distribution station, the image monitoring angle is convenient to adjust, abnormal sound is monitored, and the inspection efficiency is improved.

An audio signal processor includes signal processing circuits provided in one-to-one correspondence with audio signal channels, wherein each of the signal processing circuits is configured to separate, from a source sound signal, a target sound signal representing a target sound, which is to be processed for enhanced sound localization, the source sound signal being an audio signal of a corresponding channel, generate a sound signal with enhanced sound localization by multiplying frequencies of the separated target sound signal by a factor of k (k is an integer of 2 or more), and synthesize the source sound signal and the sound signal with enhanced sound localization for output.

The invention discloses an economizer long tube row sequence leakage sound positioning method, which comprises the following steps of S1, deploying acoustic sensors in a boiler, establishing a three-dimensional coordinate system, collecting coordinate values of the acoustic sensors on two wall surfaces in the coordinate system, and setting sampling frequencies of the acoustic sensors; s2, when sound within the sampling frequency range appears, the acoustic sensor group collects the sound; s3, based on a sound intensity inversion principle, solving to obtain a first projection point and a second projection point; s4, calculating the depth distance from the leakage sound to one wall surface; s5, constructing a spatial straight line; and taking the depth distance of the wall surface as a spatial constraint, and determining a unique three-dimensional coordinate point on a spatial straight line, which is the three-dimensional coordinate of the leakage point. Compared with the prior art, the positioning precision is obviously improved; the system can adapt to the complex acoustic environment of the boiler; the whole process does not need to be stopped, and real-time monitoring and rapid positioning can be achieved.

The present invention provides a sound image localization processing method and a sound image localization processing device that suppress the reduction in localization caused by speaker placement conditions and movement of sound sources in an acoustic space. [Solution] The sound image localization processing method is a sound image localization system having a first group of speakers installed in an acoustic space, a second group of speakers installed at a different position from the first group of speakers, a first signal processing unit that generates a first sound signal to be output to the first group of speakers, and a second signal processing unit that generates a second sound signal to be output to the second group of speakers. The same sound source signal and localization information are input to the first signal processing unit and the second signal processing unit, and the first signal processing unit is instructed to perform a first localization processing on the sound source signal to generate a first sound signal so that the sound of the sound source is localized at the position indicated by the localization information, and the second signal processing unit is instructed to perform a second localization processing on the sound source signal to generate a second sound signal so that the sound of the sound source is localized at the position indicated by the localization information.

The application discloses an animal binaural sound source perception model method and system and a medium, relates to the technical field of a sound source model, and constructs a head sound transfer function of a target animal to quantize a physical transformation process of sound from a sound source to both ears of the animal, reveals sound localization ability differences of different species caused by differences in head shape and pinna structure, realizes analysis of an animal judgment mechanism for a sound source direction and distance based on a biological acoustics principle from a physical level, and through virtual sound signal playing, the same space hearing experience can be repeatedly simulated in a laboratory or a specific grazing scene, and the collected animal ecological behavior data has comparability and repeatability, so that a high-quality data set of stimulus and response pairing is constructed.