295 results about "Directional sound" patented technology

The invention discloses a multi-dimensional anti-bird intelligent recognition method and system based on thermal imaging, and relates to the technical field of intelligent monitoring and ecological protection. Multi-modal data is collected through thermal imaging, visible light, millimeter wave radar and a voiceprint sensor, after PTP protocol synchronization and Kalman filtering preprocessing, 3-5-second tracks of birds are predicted by using an LSTM network, and the anti-bird intelligent recognition method and system based on the thermal imaging are obtained. And the cross-modal features are fused through a Transform architecture, so that 95% of classification accuracy is realized. A bird repelling strategy is generated in real time through edge calculation, and the model is updated through cloud federal learning. The system integrates an oil-electric hybrid unmanned aerial vehicle and a ground device, supports dynamic path planning based on a thermodynamic diagram and differentiated repelling of directional sound waves, laser stroboflash and the like, has the night recognition accuracy rate of 92% and the bird repelling response time of 0.8 second, and is suitable for scenes of electric power, airports and the like. Through multi-dimensional perception, dynamic modeling and eco-friendly expelling, the problems of poor environmental adaptability, single strategy and the like of a traditional scheme are solved, and the anti-bird efficiency and the ecological safety are improved.

The invention relates to the technical field of intelligent traffic monitoring, in particular to a toll station pedestrian and non-motor vehicle intrusion intelligent early warning system and method, a terminal layer comprises a sensing terminal composed of a camera, a hard disk video recorder and the like, and an early warning terminal composed of a directional sound post and the like; an edge computing unit is deployed on the edge layer, targets are detected in real time, tracks are tracked and classified, and cloud rechecking is triggered by low-confidence targets; the cloud layer utilizes a visual language large model to recheck a target, pre-mark data, generate an electronic fence and store data; the system adopts a dynamic grading early warning module, three-level early warning is triggered according to a target track, a position and staying time, and automatic degradation is carried out along with the presence of a worker; in addition, through a closed-loop optimization mechanism, a positive / false alarm feedback iteration visual small model is collected. According to the invention, cloud side-end cooperation is realized, multiple models and algorithms are fused, high-precision detection, real-time response, dynamic self-adaption and self-optimization capabilities are realized, the intrusion risk can be effectively prevented, and the safety management level of the toll station is improved.

The invention relates to a vehicle warning tone dynamic adjustment method and system based on multi-dimensional perception. According to the method, environment data are acquired, a multi-dimensional feature matrix is constructed, scene classification labels and sound field coverage parameters are analyzed based on the matrix, then an acoustic physical model is called to generate an environment self-adaptive acoustic parameter group, pedestrian behavior prediction and regional voice features are fused to implement multi-modal optimization on acoustic parameters to generate a prompt tone template, and the prompt tone is obtained. A directional sound field signal is synthesized through a beam forming technology, pedestrian response data is collected, finally, a parameter mapping rule and an acoustic physical model are continuously updated based on feedback information, a technical path of environmental perception, dynamic parameter adjustment, directional output and closed-loop optimization is formed, the self-adaptive capacity of the prompt tone system to complex traffic scenes is achieved, and the prompt tone system has a wide application prospect. While the warning effectiveness is guaranteed, the environmental interference is reduced, different regional cultural characteristics and pedestrian perception characteristics are considered, and the safety and environmental friendliness of human-vehicle interaction are integrally improved.

The application provides a sound amplification sound column with adjustable vertical direction. The sound column comprises multiple coaxial cylindrical wave mid-high sound boxes arranged vertically, a sound box connecting mechanism, and a sound column direction adjusting mechanism. The sound box comprises a box with a trapezoidal vertical section and a coaxial cylindrical wave mid-high module installed on the panel of the box. The coaxial cylindrical wave mid-high module comprises a midrange horn, a high-frequency module, and a midrange phase plate. The high-frequency module is embedded in the midrange phase plate, and the midrange phase plate is placed on the midrange horn. The sound column is composed of multiple coaxial cylindrical wave mid-high sound boxes arranged vertically, and the curvature of the cylindrical wave is accurately controlled through the connecting mechanism and the adjusting mechanism to realize continuous adjustment of the vertical direction.

The invention relates to an array microphone noise reduction recording method based on cascade noise reduction and blind source separation, which belongs to the technical field of voice signal processing and recording, and comprises the following steps: configuring a multi-channel array microphone, ensuring that the amplitude and phase of a channel signal are consistent, and collecting an original multi-channel voice signal; a weighted kernel function blind source separation algorithm is adopted, signal-to-noise ratio distribution characteristics of signals are extracted, kernel function weights are given, and target voice and interference signal components are obtained through decoupling of an independent component analysis model; executing target-oriented adaptive cascade noise reduction, locking the voice of a keynote speaker through directional pickup, reducing noise, filtering out reverberation, and enhancing the voice of a far-field target by combining a voice mask neural network with a far-field pickup algorithm in sequence; and processing the target voice through voice feature perception lossless coding and storing the target voice. According to the invention, stable acquisition of multi-channel signals, accurate separation of mixed signals and layered suppression of noise reverberation are realized, the signal-to-noise ratio and definition of far-field voice are significantly improved, and the method is suitable for single-person speaking or multi-person dialogue scenes.

The voice directional enhancement method comprises the steps that a current frame and a staring direction of mixed voice are acquired, and the mixed voice is acquired by a microphone array; constructing a direction feature based on the current frame of the mixed voice and the gazing direction, and constructing an audio feature based on the current frame of the mixed voice; determining a current frame mask according to the direction features and the audio features; and determining a target enhanced voice of the current frame according to the current frame mask, the current frame of the mixed voice and the plurality of historical frames of the mixed voice. In the embodiment of the invention, the mask of the current frame is generated under the guidance of the gazing direction, so that the target voice can be accurately separated from the mixed voice. Besides, based on the current frame mask and the current frame of the mixed voice, the target voice enhancement is performed frame by frame from the overall characteristics of the mixed voice by referring to a plurality of historical frames, so that the accuracy of the target enhanced voice of the current frame can be effectively improved, and thus the accuracy of directional pickup is improved.

The invention relates to the technical field of ring main units, in particular to a sound-light alarm system for preventing misoperation of an all-insulation inflatable ring main unit. Comprising a multi-mode sensing module; an intelligent decision module; a sound-light alarm module; and a mechanical interlocking module. The sound-light-touch three-mode collaborative warning strategy is innovated, and the warning signal identification degree in a complex environment is enhanced through synchronous activation of directional sound waves, double-color stroboscopic light and vibration feedback; by combining dynamic audio adjustment, spectrum adaptive illumination and an operation behavior self-learning algorithm, intelligent dynamic adjustment of a warning strategy is realized, misjudgment of manual operation is effectively reduced, and an efficient risk intervention mechanism covering multiple senses is constructed; according to the invention, through a logic AND operation mechanism of high-voltage live detection and grounding knife switch position monitoring, a core high-risk scene that the power supply side is live and the grounding knife switch is closed is accurately captured, and the problem of missed judgment caused by single condition monitoring in the prior art is effectively solved.

The invention discloses an AI voice assistant semantic enhancement method oriented to an education scene, and the method comprises the following steps: S1, collecting classroom voice signals in real time through an annular multi-microphone array which is installed at the edge of a blackboard in an embedded manner, and obtaining the real-time three-dimensional coordinates of a teacher through a UWB positioning module; s2, constructing a spatial sound source mapping model based on the three-dimensional coordinates of the teacher; s3, acquiring blackboard writing character content through a visual sensor mounted on the side edge of the blackboard; s4, injecting the extracted feature keywords into a dynamic term library generation module to generate a standardized teaching instruction, and synchronizing the standardized teaching instruction to student terminal equipment; and S5, when detecting that the confidence of the voice instruction is lower than a preset threshold value, jointly analyzing the time sequence characteristics of the lip movement track and the blackboard writing handwriting to perform semantic completion. According to the method, an intelligent semantic analysis system with acoustic enhancement, term adaptation and multimode verification is constructed, and the semantic distortion problem caused by environmental interference in traditional speech recognition is eliminated through directional pickup and noise suppression of an intelligent array.

The invention belongs to the field of metal roof waterproof defect detection, and particularly relates to a metal roof waterproof defect real-time detection system based on multi-sensor fusion. The invention discloses a metal roof waterproof defect real-time detection system based on multi-sensor fusion, and the system comprises an acquisition module which comprises an ultrasonic detection assembly, a directional sound acquisition assembly, a visual image acquisition assembly, and an optical grating; the ultrasonic detection assembly is arranged on the side face of the roof and used for emitting ultrasonic waves and receiving reflected signals. The grating is arranged corresponding to the ultrasonic detection assembly and is used for emitting light beams to the roof when the ultrasonic detection assembly emits ultrasonic waves; and the visual image acquisition assembly and the directional sound acquisition assembly are carried on the movable holder. According to the scheme, through combination and cooperation of multiple detection principles, through the stages of initial detection, precise verification and the like, the recognition precision and efficiency are improved, the problem that in a metal roof overlapping or splicing scene, the detection efficiency of the waterproof defect of the metal roof is low is solved, and full-scene efficient detection is achieved.

The invention discloses a sleep-aiding method for achieving on-site feeling by adjusting the direction of sound waves, and the method comprises the steps: automatically / intelligently controlling the angles of a loudspeaker and a waveguide tube through a sleep-aiding sound box, or manually adjusting the angles of the loudspeaker and the waveguide tube in the sleep-aiding sound box, and then reflecting the sound waves emitted by the loudspeaker through the waveguide tube. The sound wave propagation direction is adjusted to realize directional sound production, so that the formed sound produces strong sound pressure in a certain direction, and a part of sound felt by a user can enter a three-dimensional space outside the sound box by virtue of secondary reflection of a ceiling or a wall or a floor of a room, so that the user can sleep by himself / herself. Therefore, the sound subjectively felt by the user is not from the self-sleep sound box but from the top or the side part of the room, a more natural and relaxed atmosphere is created, the purpose of on-site feeling is achieved, and the sleep aiding effect is further improved.

The invention relates to the technical field of directional pickup, and discloses a directional pickup method and device, computer equipment and a medium, and the method comprises the steps: obtaining time domain voice signals collected by at least two microphones, and carrying out the time-frequency conversion; calculating an observation phase difference of each frequency point, and determining a target theoretical phase difference according to a target pickup direction specified by a user and the geometric parameters of the microphone; encoding the target theoretical phase difference into a query vector, encoding the observation phase difference into a key vector, and generating a space confidence mask through a geometric cross attention mechanism; and filtering the frequency domain signal by using the mask, and outputting enhanced voice in a target direction through inverse time-frequency transformation. According to the invention, through an attention mechanism guided by physical prior, the problem of phase winding is effectively solved, and high-robustness and high-fidelity speech pickup in any direction is realized in a strong reverberation and low signal-to-noise ratio environment.

The invention relates to a traffic information voice broadcast method and system based on the LTE-V technology, and belongs to the field of intelligent traffic, and the method comprises the steps: receiving traffic event information, and calling a monitoring camera near an event point; inputting voice information by a commander, performing active noise reduction processing on the voice information, and determining whether voice speed reduction and keyword repeated enhancement processing are increased or not; performing three-layer matching on the voice information based on a spatial feature library, an event feature library and a plan library to generate a point-to-point directional voice instruction; and dynamically generating an event early warning message set through the RSU, broadcasting the event early warning message set, and carrying out anti-interference processing on the vehicle-mounted equipment. According to the invention, the event positioning and plan calling time is shortened through a three-layer matching algorithm, the traffic event handling response efficiency is improved, and the misoperation rate is reduced through a panic index triggering mechanism; and on the basis of dynamic filtering of the vehicle driving direction and distance, invalid early warning is reduced, and early warning timeliness is ensured.

The invention belongs to the technical field of underwater welding, and discloses an underwater double-path ultrasonic synergistic laser-electric arc hybrid welding repair device and method. The device comprises a two-way ultrasonic synergistic TIG welding gun and a laser head which are both fixed on an external drainage cover, and sealing penetration pieces are arranged on the external drainage cover for the two-way ultrasonic synergistic TIG welding gun and the laser head; the double-path ultrasonic synergistic TIG welding gun comprises a tungsten electrode sound path and an end part sound path; the tungsten electrode sound path transmits ultrasonic energy to a welding gun tungsten electrode through a tungsten electrode ultrasonic transducer, the electric field at the root of the welding gun tungsten electrode and the micro-motion behavior of the welding gun tungsten electrode are affected, and therefore the electric arc is compressed, and the position of the root of the electric arc is finely adjusted. The end sound path acts on the end of the welding gun through the end ultrasonic transducers in an annular array, directional sound radiation pressure is applied, an electric arc column and the surface of a molten pool are adjusted, heat input is promoted to be evenly distributed, and the symmetry of the molten pool is improved. The welding quality and the process stability are remarkably improved.

An animal deterrent device is generally shown. The animal deterrent device utilizes smart technology to deter an animal from coming close to a person holding the device or breaking apart two animals that are fighting without having to get physically involved. The device includes a first shell coupled to a second shell via fasteners. The device also includes one or more transducers configured to emit a sound wave. The transducer is controlled by a processor that includes a signal processing module and an analytics machine, amongst other components. The processor is configured to optimize the sound wave emitted by the transducer to provide a directional sound wave of a particular frequency, ranging from 10 kHz to 45 kHz, to keep an animal away.

The invention discloses a directional radio receiving method, a directional radio receiving device and electronic equipment. The method comprises the following steps: acquiring multi-channel audio data acquired by a microphone array; sound source localization is carried out on the multi-channel audio data, a target localization result is obtained, and the target localization result at least comprises a sound source orientation determined based on a historical localization result; audio signals in multiple target directions corresponding to the multi-channel audio data are determined, and the audio signals are determined based on the target positioning result; and determining an output signal corresponding to the multi-channel audio data according to the audio signal. According to the invention, the technical problem of beam forming direction deviation caused by insufficient precision and poor stability of sound source positioning in noise and reverberation environments in the prior art is solved.

The invention relates to the technical field of wind tower disease recognition, and discloses a wind tower disease image recognition system based on deep learning. The method comprises a bionic scanning layer, a sound wave feature extraction layer, a multi-source fusion module, an intelligent diagnosis module and an iterative optimization layer. The bionic scanning layer obtains a multispectral wind tower surface image, a surface damage distribution diagram is generated through wavelet decomposition, and an abnormal region boundary is recognized; the acoustic wave feature extraction layer deploys a directional acoustic wave sensor array according to the abnormal region, and generates an internal three-dimensional defect topological graph through a reflected signal; the multi-source fusion module establishes a space mapping relation, and after timestamps are synchronized, surface and internal data are fused by using a gating chart neural network to generate defect fusion confidence; the intelligent diagnosis module converts the confidence into a maintenance operation instruction sequence based on deep reinforcement learning and transmits the maintenance operation instruction sequence to the execution terminal; and the iterative optimization layer monitors the state change of the tower drum, calculates a deviation value to generate an efficiency index, and dynamically adjusts a multispectral scanning parameter.

The invention discloses a self-adaptive directional sound control method and system based on a multi-loudspeaker array. The method comprises the following steps: constructing an acoustic array by utilizing a plurality of loudspeakers distributed in different directions in the mobile terminal, performing single side band up-conversion processing on an audio signal, performing digital beam forming according to a target direction, and generating a plurality of paths of driving signals with phase difference and time delay difference, thereby forming a high-directivity sound field in a space. The system collects sound field feedback signals through a built-in microphone, and adopts a minimum mean square algorithm to adjust beam parameters in real time so as to compensate for terminal attitude, shielding and environmental noise changes and realize stable directional output of a sound field. The system further comprises a parameter library and sensor fusion module which supports adaptive calibration and multi-beam output of different devices. According to the invention, programmable directional sound transmission is realized without hardware modification, and the method has high privacy, low power consumption and strong robustness, and is suitable for private communication of an intelligent terminal and a multi-user audio partition playing scene.

The invention relates to the technical field of equipment operation state monitoring, in particular to a transformer substation main transformer equipment operation state monitoring system based on voiceprint recognition. Comprising a voiceprint collection module, a data preprocessing module, a voiceprint analysis module, a state evaluation module, a cooperative monitoring module, an interaction early warning module, a block chain evidence storage module and an operation and maintenance optimization module. According to the invention, the directional acoustic sensor collects voiceprint signals of key components, synchronously collects multi-dimensional operation parameters, and combines a wavelet threshold noise reduction algorithm to filter environmental noise and timestamp synchronization algorithm associated data, thereby achieving the effects of eliminating environmental interference and ensuring the integrity and accuracy of monitoring data. A normal voiceprint baseline library is constructed through historical voiceprint data and a deep learning model, current voiceprint signals are compared in real time, the operation state is judged in combination with multi-dimensional parameters, a time sequence model is used for deducing the fault trend, and the effects of accurately recognizing the fault type, accurately dividing the equipment state and conducting early warning in advance are achieved.

The invention discloses a directional pickup system for intelligent glasses, which relates to the technical field of intelligent glasses and comprises heterogeneous microphone array modules used for being arranged on two sides of glasses legs to form spatial asymmetric array digital microphones and realizing coverage of + / -90 degrees in a horizontal plane and + / -30 degrees in a vertical plane by utilizing a binaural sound source positioning principle. The receiver is used for receiving acoustic signals from the environment. The adaptive beam control module calculates a sound source azimuth angle based on a dynamic beam forming algorithm and the delay inequality of microphone array signals, adjusts digital beam pointing in real time, and updates the frequency to be greater than or equal to 50Hz; according to the multistage noise suppression module, a bone conduction sensor is integrated at a nose pad of a glasses frame, sound source positioning is assisted through jaw vibration signals, environmental noise is suppressed, and a three-stage noise reduction mode is set; and the execution module is used for executing switching of pickup modes based on sound sources with different distances, wherein the pickup modes comprise a near-field mode and a far-field mode. According to the invention, through fusion of bone conduction and air conduction, environment pickup is effectively and adaptively carried out.

1. The name of the design product: directional sound device (1). 2. The use of the design product: for playing sound directionally. 3. The design points of the design product: in the combination of shape and pattern. 4. The picture or photo that best shows the design points: perspective view.

The invention provides a vehicle control method and device, a vehicle, a storage medium and a program product, and relates to the field of auxiliary driving. The method comprises the following steps: acquiring environment data around a vehicle, wherein the environment data comprises at least one of a multi-view image and multi-azimuth sound data; determining whether a preset event for triggering the vehicle to give way occurs or not based on the environmental data; and in response to determining that the preset event occurs, controlling the vehicle to execute a way giving operation. According to the method, whether the preset event needing to give way occurs or not can be judged according to the environmental data, the giving response is quickly made when the preset event occurs, the automatic execution process of obtaining the preset event from the environmental data and then controlling the vehicle to give way is achieved, the intelligent decision making and control ability is reflected, and the user experience is improved. And the intelligent level of vehicle driving and the control capability of coping with emergencies are effectively improved.

1. The name of the designed product: loud directional broadcast speaker. 2. The use of the designed product: long-distance directional sound wave emitting equipment. 3. The design points of the designed product: the combination of shape and color. 4. The picture or photo that best shows the design points: perspective view. 5. The design contains colors.

The invention discloses a conference privacy protection system and method based on visual sound field fusion. The conference privacy protection system comprises a visual acquisition module, an audio acquisition module, an audio playing module and a processing control module, wherein the visual acquisition module transmits mouth shape area three-dimensional coordinates, ear area three-dimensional coordinates and mouth motion states of participants to the processing control module; the processing control module generates a directional pickup instruction based on the mouth shape area three-dimensional coordinates, and sends the directional pickup instruction to the audio acquisition module to control the audio acquisition module to focus mouth shape area pickup; and meanwhile, a directional playback instruction is generated based on the three-dimensional coordinates of the ear region and is sent to the audio playing module to control the audio playing module to project sound beams to ears. Through visual guidance directional pickup, ultrasonic directional playback and audio and video fusion optimization, the risk of audio diffusion is reduced, so that the conference privacy protection effect is improved.

The utility model discloses a sound wave soot blower for electrostatic precipitator, it includes the casing, one end fixed mounting of casing has compressed gas source, one side of compressed gas source is provided with main gas pipe, be provided with a plurality of different length's branch gas pipe on main gas pipe, one end of a plurality of branch gas pipe all is fixedly installed with intelligent control valve all to the shell and is all downward, the lower end fixed mounting of intelligent control valve has variable frequency formula resonant cavity sound wave generator, the lower end fixed connection of variable frequency formula resonant cavity sound wave generator has directional sound wave sound signal horn, directional sound wave sound signal horn is located the top of dust collecting electrode, through the branch gas pipe of different length to directional sound wave sound signal horn and variable frequency formula resonant cavity sound wave generator form asymmetric interval distribution, effectively reduced the sound wave interference between each electric field.

The present application provides a directional sound pickup method, system, device, and storage medium, relating to the field of sound pickup. The method comprises: performing MVDR beamforming processing on the initial speech signal input by the microphone array, and then extracting the BFCC features and fundamental frequency features of the speech signal. The BFCC features are processed using a pre-trained speech / noise separation DNN to obtain a time-frequency mask. Comb filter parameters are adaptively designed based on the fundamental frequency features, and the initial speech signal is comb filtered. The time-frequency mask is used as a weighting coefficient and multiplied with the comb-filtered speech signal and the initial speech signal, respectively, to estimate the target speech energy and noise energy. The frequency-dependent Bark gain coefficient is calculated on the Bark frequency scale and used to enhance the speech signal in the time-frequency domain. Finally, the enhanced speech signal is converted into a time-domain signal through an inverse BFCC transform to obtain the target enhanced speech pointing in the target direction. The above scheme improves the directional sound pickup effect.

The invention relates to the technical field of pile foundation detection, in particular to a pile foundation detection counter-force device which comprises a support, a first clamping rod is fixedly connected to the support, a second clamping rod is arranged on the side, close to the first clamping rod, of the support, a detector is fixedly connected to one side of the second clamping rod, and a conical block is fixedly connected to the lower side of the support. A connecting plate is arranged on the outer side of the bracket; the inner side of the connecting plate is fixedly connected with a sound absorption piece. The connecting plate and the support are quickly limited together through the mounting mechanism, so that the sound absorption parts are neatly arranged around the support in a surrounding mode, directional sound absorption space can be formed when the sound absorption parts are neatly arranged outside the support in a surrounding mode, noise of a specific frequency is absorbed through the sound absorption materials, superposition with excitation signals is reduced, misjudgment of the sensor is avoided, and the detection accuracy is improved. The technical problems that the pile foundation detection counter-force device is affected by surrounding noise sources in the construction peak period, sound insulation protection is not conducted on a detection composite head, surrounding noise is prone to being overlapped with excitation signals, and misjudgment of a sensor is prone to being caused are solved.

The application relates to the technical field of virtual engine and discloses an immersive directional sound effect simulation optimization method and system based on a virtual engine. The method submits an acoustic ray tracing task to a hardware light tracing unit of a graphic processor at an acoustic solving rate lower than a graphic frame rate, accesses the same level of a bounding box acceleration structure as a graphic light tracing task, solves an effective sound propagation path according to a graphic material identification of a hit triangular facet, generates a path signature according to a sound source and the hit triangular facets successively passed through, and packs the path signature into an acoustic state snapshot for output; an audio rendering thread runs at an audio block rate higher than the acoustic solving rate, matches the snapshot and an active path set according to the signature, distinguishes a continuous path, a newborn path and a dying path, and respectively performs smoothing, fading in and fading out, and performs binauralization rendering on a sound source signal to obtain output binaural signals. The application solves the acoustic by reusing the graphic side acceleration structure, and continuously presents the directional sound effect without artifacts at a lower solving rate.

The invention provides a directional sound propagation method and device based on a phased array, equipment and a storage medium. The method comprises the following steps: acquiring environment information of a target area; matching a corresponding initial sound field model from a pre-constructed multi-scene sound field database; carrying out dynamic correction on the initial sound field model; calculating a current optimal phase weight matrix based on the corrected sound field model; and according to the phase weight matrix, controlling the sound production phase of each loudspeaker unit in the phased-array loudspeaker array, so that sound is directionally propagated in the target area. By accurately controlling the sound wave propagation direction, the sound pressure level is significantly attenuated in the non-target area, interference of sound to surrounding residents and the environment is avoided, and the environmental comfort is improved. Moreover, by dynamically correcting the sound field model and optimizing the phase weight, the uniform distribution of the sound pressure level in the target area is ensured, and the intelligibility and auditory experience of voice and music are improved.

The invention relates to the related field of a wireless communication technology, in particular to a directional sound propagation method for an interphone loudspeaker, which realizes directional sound propagation, reduces noise pollution, has stronger confidentiality due to the fact that sound cannot be diffused all around, and realizes directional sound propagation of the interphone loudspeaker through an ultrasonic carrier modulation technology. According to the invention, sound directional propagation is realized on the basis of original hardware of a common interphone, the whole machine does not need to be reconstructed, the limitation that a traditional directional loudspeaker needs special hardware is broken through, the technical path is novel, and the realization cost of a directional propagation function is greatly reduced; and large-scale popularization and application of common interphones are facilitated.

The utility model provides an earphone head and a bluetooth earphone, the earphone head comprises a main housing and a sound production assembly, the main housing comprises an inner side wall, an outer side wall and an annular side wall, and the inner side wall, the outer side wall and the annular side wall are enclosed to form an accommodating cavity; the sound production assembly is provided with a sound production surface, the sound production assembly is arranged in the accommodating cavity in a manner that the sound production surface faces the inner side wall, and an inner sound cavity is formed by a cavity between the sound production surface and the inner side wall; the annular side wall is provided with a directional sound guide hole communicated with the inner sound cavity, and the earphone head is worn on a human body in a manner that the inner side wall is attached to the face of the human body and the directional sound guide hole faces the auricle of the human body; the edge, away from the inner side wall, of the directional sound guide hole is provided with a sound guide plate protruding out of the face where an outlet of the directional sound guide hole is located. The earphone head of the utility model does not need to be plugged into the ear canal and cover the external ear, and does not need to press the skull, so that better sound playing quality can be achieved.