8695 results about "Sound box" patented technology

A device environment can include a plurality of devices, including an audio device, in communication over a network. An audio device (such as a soundbar) can comprise a speaker, a camera, and other sensors. The audio device can receive information from other devices in the environment including image data from other cameras and physiological data from wearable devices, etc. The audio device can monitor and control aspects of the environment. The audio device can provide information to the user including audible notifications, and can monitor the user including the user's position or physiological condition, alone or in combination with other devices in the environment.

The invention discloses an automatic delay calibration method, device and equipment for an intelligent loudspeaker box system and a storage medium. The method comprises the steps that the intelligent loudspeaker box system is initialized, and environment detection is carried out to preliminarily configure system parameters; exciting the target sound channel and playing the target test signal; positioning a first test signal based on a VAD voice activity detection algorithm, judging the start and end of the first test signal, and identifying the time difference of the first test signal to obtain the delay time of the main sound channel; positioning the arrival time of the second test signal based on a peak velocity search algorithm, and identifying the delay time of the subwoofer; and performing delay time calibration on the subwoofer and each main sound channel, and dynamically adjusting the delay calibration parameter of each sound channel according to the delay time calibration amount, thereby realizing accurate time alignment of the subwoofer and the main sound channel. The problem of low-frequency signal delay which is difficult to process in the prior art is solved, and a breakthrough progress is achieved especially in coordination of the subwoofer and other sound channels.

The invention relates to the technical field of intelligent home control, and discloses a control method and a control system of an intelligent sound box. The control method of the intelligent sound box is applied to a control device, and specifically comprises the following steps: S101, collecting a voice instruction of a user, carrying out noise reduction processing and voiceprint feature extraction on the voice instruction, transmitting the processed voice instruction to a semantic analysis engine, carrying out intention recognition on voice content based on a deep learning model, and sending the intention recognition result to a semantic analysis engine; generating a structured operation instruction set; and S102, according to the device identifier contained in the structured operation instruction set. Through dual authentication of voiceprint feature extraction and dynamic verification phrase, the illegal access false recognition rate is reduced to below 0.12%, the voiceprint database is combined with the Mel frequency cepstrum coefficient and the dynamic time warping algorithm, accurate matching of user identities is achieved, the dynamically generated verification phrase comprises random initial and final combinations, and recording playback attacks are effectively resisted.

A system configured to generate dynamic visual feedback by synchronizing smart lights with a rhythm and energy levels of music being output. A device may translate audio samples to luma (brightness), chroma (color), and location data using a low-latency algorithm. For example, the device may divide the full band audio data into separate frequency bands based on the number of output devices and control a brightness for an output device by tracking energy within a corresponding frequency band. The color and location may be controlled based on a number of beats per minute, direction, and / or the like. In addition to controlling external lighting via a smart home hub, the device can control LED light(s) on the device via an LED controller. To further reduce latency, the device can directly communicate between an audio processor, the smart home hub, and / or the LED controller using low level hardware abstraction layers (HALs).

The invention relates to a sound pressure adjusting method and system based on a human body induction sound box. The method comprises the following steps: acquiring user motion data through a human body induction sensor, and performing triangulation positioning analysis on the user motion data through an MCU (Microprogrammed Control Unit) chip to obtain position coordinate data and motion track data; inputting a sound field analysis model in the DSP chip for characteristic analysis to obtain surrounding sound field characteristic parameters; the method comprises the following steps: performing multichannel separation and time domain equalization processing on an original audio signal by a DSP chip to obtain a multichannel preprocessed signal; inputting into a DSP chip for sound pressure balance calculation to obtain an initial sound channel gain control parameter; performing power amplification on the multichannel pre-processed signal, and driving a loudspeaker array to output a surround sound signal; and the DSP chip dynamically optimizes the initial sound channel gain control parameter to obtain a target sound channel gain control parameter. According to the invention, real-time optimization and dynamic updating of sound pressure parameters are realized, and the response speed of the human body induction sound box to environmental changes is improved.

The invention relates to a cross-space cooperative illumination control method, a sound box, a system and a medium, and belongs to the technical field of lamp control, and the method comprises the steps: obtaining the network signal intensity of a user mobile terminal in real time under the condition that an illumination device in a target sub-region where a user is currently located is in an on state; when the network signal intensity changes beyond the preset range, acquiring a plurality of connection signal intensities with the mobile terminal in the next period of time, and calculating real-time position parameters of the user according to all the network signal intensities and all the connection signal intensities; obtaining movement prediction data of the user according to the change condition of the real-time position parameter; generating a control instruction based on the movement prediction data; sending the control instruction to the lighting device of the corresponding target sub-area; the illumination of each area can be automatically adjusted according to the change of the position of the user, so that the user is prevented from frequently inputting instructions when moving in different spaces, and the user experience is improved.

A soundbar for medical monitoring which may comprise a speaker, a sensor, and a hardware processor. The speaker can be configured to emit audio signals. The sensor can be configured to obtain sensor data relating to a physiology of a subject. The sensor can include a camera and the sensor data can include image data. The hardware processor can be configured to access the sensor data and determine a health status of the subject based on at least the sensor data.

According to the KAN convolution improvement-based DCU-Net intelligent sound box voice recognition noise reduction method disclosed by the invention, a KAN convolution improvement-based DCU-Net noise reduction network model is constructed and trained, the complex frequency spectrum of audio data is encoded through a model encoder layer, feature information is extracted and enhanced, and then weighting processing is performed by using a local sparse attention mechanism, so that the noise reduction performance of the voice recognition noise reduction system is improved. Decoding the feature information and reconstructing the feature information into audio data after model noise reduction; and inputting the de-noised audio data of the model and the corresponding pure voice into an LwSDR loss function to calculate a loss value and update model parameters, freezing model parameter updating after training is completed, switching a verification set, and adjusting and optimizing model hyper-parameters. According to the method, the complexity of the model is effectively reduced, the robustness of the model in processing a complex audio scene is enhanced, meanwhile, efficient audio noise suppression is realized, and the voice recognition accuracy in the intelligent loudspeaker box is improved.

The invention relates to the technical field of sound quality enhancement, in particular to a sound quality improvement method and device of a Bluetooth loudspeaker box, equipment and a storage medium. The method comprises the following steps: collecting sound box environment acoustic signals, and carrying out peripheral audio time-frequency spectrum analysis and three-dimensional sound field fitting to construct a peripheral three-dimensional sound field model; based on the surrounding three-dimensional sound field model, environment noise source semantic deep analysis is carried out, and user real-time scene sound quality demand prediction is carried out, so that real-time scene sound quality demand features are generated; bluetooth sound box loudspeaker monitoring parameters are collected, and adaptive noise frequency suppression adjustment is carried out based on the surrounding three-dimensional sound field model rate, so that a loudspeaker dynamic noise suppression adjustment strategy is generated; and acquiring a Bluetooth audio output signal, and performing band frequency response characteristic optimization according to the real-time scene tone quality demand characteristics to obtain a frequency response tone quality optimized audio signal. According to changes of different environments and requirements, the output tone quality of the Bluetooth loudspeaker box is optimized in real time, and high-fidelity audio output is kept.

The invention discloses an adaptive environment sound effect optimization method for a vehicle-mounted intelligent sound box, and relates to the technical field of sound effect optimization. The method comprises the following steps: carrying out noise analysis and identification on background audio in a vehicle to obtain noise audio characteristics; playing audio content is obtained, audio analysis and recognition are carried out, and playing audio features are obtained; performing feature influence analysis by using the noise audio features and the playing audio features to determine audio influence information; performing feature optimization compensation on the playing audio features to obtain compensation control parameters; constructing a user playing feature library according to the playing adjustment record; and carrying out constraint adjustment on the compensation control parameters by taking the playing characteristics as constraint conditions, determining an audio optimization adjustment scheme, and carrying out sound effect optimization control on the audio content played by the vehicle-mounted sound box. The technical problem that in the prior art, audio playing in a vehicle-mounted environment is interfered by noise in a vehicle, and consequently the sound effect quality is reduced is solved, and the technical effect of improving the sound effect quality is achieved by conducting sound effect optimization on the audio content.

The invention provides an intelligent video sound box regulation and control system based on AI. The intelligent video sound box regulation and control system comprises a video data processing module, a user behavior analysis module, an environment perception module, a computing power scheduling module, a parameter optimization module, a real-time interaction module and a data storage module. The video data processing module analyzes the video stream and extracts multi-dimensional features; the user behavior analysis module generates behavior tags by analyzing user actions and voice instructions; the environment sensing module collects environment light intensity, space size and sound field parameters; the computing power scheduling module dynamically allocates GPU and TPU computing power resources; the parameter optimization module generates sound box regulation and control parameters based on the user behavior label and the environment parameters; the real-time interaction module adjusts the volume, the frequency response and the video playing frame rate of the sound box according to the regulation and control parameters; and the data storage module synchronizes video streams and regulation and control parameter historical data through distributed storage nodes. The system operation efficiency and the resource utilization rate can be improved.

The invention discloses an adjusting method of an intelligent sound box, intelligent equipment and a storage medium. Sound data of an environment where the intelligent sound box is located is collected, acoustic characteristic analysis is performed on the environment, acoustic parameters related to the intelligent sound box are automatically adjusted according to an acoustic analysis result, an acoustic model is formulated, and the intelligent sound box is adjusted according to the sound listening preference of a user. And formulating an acoustic model matched with the listening preference of the user. According to the invention, different listening environments can be automatically identified and adapted, the acoustic characteristics of the environments are analyzed in real time, and the frequency response and sound directivity of the sound box are automatically adjusted by applying a digital signal processing algorithm and a machine learning technology, so that personalized acoustic experience is provided for a user, and the overall sound quality effect is improved.

The utility model is suitable for the technical field of LEDs, and provides a sound transmission LED box body with an anti-piracy function, a screen and a movie hall. The sound transmission LED box body comprises a box frame, and a plurality of LED modules which are arranged in sequence are fixed in the box frame. Each LED module comprises a first PCB and a second PCB which are perpendicular to each other, a driving chip is arranged on the back face of each first PCB, LED lamp beads are arranged on the front faces of the second PCBs, sound transmission areas without wiring are arranged between the second PCBs, sound emitted by a loudspeaker box placed on the back of the screen can reach an auditorium through the sound transmission areas, and the sound transmission effect is good. The size specification of the sound transmission area can be designed according to the expected sound effect, so that the whole screen structure achieves the ideal sound transmission effect. Moreover, the HUB board on the back of the box body is covered with the rear cover with the lock, whether the HUB board receives the video signals or not is determined by detecting the state of the locking piece through the sensor, the safety of video resources is improved, and the video resources are prevented from being leaked from the LED box body.

According to the sound box directional broadcasting method and device, the equipment and the storage medium provided by the invention, the initial sound box parameters and the sound field data of the target area are acquired, and the sound field data comprise the sound box array position information and the site characteristic information; constructing an acoustic model of the target area according to the site characteristic information and the initial sound box parameters, and simulating a coverage effect of sound in the target area; according to a simulation result, optimizing the initial sound box parameter to obtain a target sound box parameter; and according to the target loudspeaker box parameter, setting a loudspeaker box array position and a beam forming parameter of the loudspeaker box in the target area. According to the invention, by accurately controlling the position of the loudspeaker box array and the beam forming parameters, the sound can be ensured to uniformly cover the target area, and the common problems of non-uniform sound, interference and the like in the traditional broadcasting system can be avoided at the same time. According to the directional broadcasting method, sound can be effectively concentrated to a target area, and interference to a non-target area is reduced.

The invention relates to the technical field of audio processing and loudspeaker box control technologies, in particular to a loudspeaker box control method, system and device based on a built-in sound source and a storage medium, and the method comprises the steps: obtaining a selection instruction of a user, and calling a corresponding sound source file based on the selection instruction; receiving the called sound source file by using a built-in preset audio processing algorithm, and adjusting audio parameters of the sound source file; performing deep optimization combination on the processed audio parameters corresponding to the plurality of audio source files subjected to audio parameter adjustment by using an audio mixing algorithm so as to obtain a playing audio signal; and transmitting the playing audio signal to an integrated amplification circuit for power amplification, and enhancing the signal strength to drive a loudspeaker to work. The application has the effect of improving the audio quality and the user experience.

The invention discloses a wireless loudspeaker box group cooperative control method and system based on an external Bluetooth transmitting and receiving array, and relates to the technical field of wireless audio control. UWB high-precision positioning and Bluetooth RSSI fingerprint data are fused, an error correction model is constructed, environmental interference data are acquired in real time in combination with spectrum scanning, and the problems of single-technology positioning drift and signal crosstalk are solved. And adopting an improved K-means clustering algorithm, dynamically and adaptively partitioning the sound field according to the movement speed and density of the user, and optimizing the physical topology path of the Bluetooth array based on the interference intensity. A user density change rate, a cluster offset distance and an interference intensity threshold are set, sound field reconstruction is triggered in real time, and partition lag of a traditional scheme is avoided. The Bluetooth array is controlled to switch narrow beam directional transmission, and a multi-user priority arbitration model is combined, so that the concurrent bearing capacity of the system is improved. A wireless sound box group cooperative control scheme integrating dynamic sound field adaptation, high-concurrency instruction scheduling, anti-interference transmission and cross-brand compatibility is realized.

The invention discloses a method, a system and equipment for voice interaction inside and outside a vehicle and a storage medium, and relates to the technical field of intelligent cabins and human-computer interaction. Identifying an interaction trigger type (in-vehicle active request, out-of-vehicle passive request, or system active trigger) based on the perceived data and / or the vehicle event; determining a corresponding response permission strategy according to the trigger type, and determining whether to allow the system to respond based on the response permission strategy; and if so, calling a large language model to generate a voice text, synthesizing voice by combining external perception characteristics, and broadcasting the voice through a loudspeaker outside the vehicle or a sound box in the vehicle. According to the scheme, three types of interaction intentions including the in-vehicle active request, the out-vehicle passive request or the system active triggering are recognized, the large language model is called to generate the scene-adaptive voice text, and personalized voice synthesis and broadcasting are performed in combination with the external perception characteristics, so that the response efficiency, the expression naturalness and the object adaptability of the in-vehicle and out-vehicle voice interaction are improved.

The invention relates to the technical field of sound effect optimization, and discloses a sound effect optimization method and device based on a coaxial loudspeaker echo wall sound box, and the method comprises the steps: carrying out the acoustic response measurement and acoustic feature analysis of the coaxial loudspeaker echo wall sound box, and obtaining a frequency domain acoustic response characteristic curve; performing acoustic partition calculation on the internal space of the coaxial loudspeaker echo wall sound box to obtain a spatial arrangement parameter of an acoustic processing unit; carrying out acoustic center positioning calculation on the coaxial loudspeaker to obtain a space coordinate parameter and an axial inclination angle parameter of the coaxial loudspeaker; carrying out sound reflection angle calculation and material combination optimization on the inner wall structure of the echo wall sound box to obtain an inner wall geometric curvature parameter and a box body material lamination parameter; sound pressure level frequency response curve analysis and sound phase positioning precision measurement are carried out on the inner wall geometric curvature parameters and the box body material lamination parameters, sound box acoustic performance verification data are obtained, the uniformity of the sound field in the sound box is guaranteed, and then the acoustic performance of the sound box is improved.

The invention relates to the technical field of audio equipment configuration, and discloses a parameter configuration method and device of audio equipment, equipment and a storage medium, which are used for improving the accuracy of parameter configuration of the audio equipment. The parameter configuration method of the audio equipment comprises the following steps: acquiring the type and audio format information of a current input signal source; based on the type of the input signal source and the audio format information, identifying an audio content type and determining an optimal playing mode; adjusting a sound box combination and sound channel configuration of the audio equipment based on the optimal playing mode; and matching a volume level according to the audio content type, and carrying out adaptive volume adjustment on the audio equipment in combination with user preference and environment analysis.

The invention relates to the technical field of sound box regulation and control, in particular to a sound box self-adaptive regulation and control method and system based on environmental noise characteristics. The method comprises the following steps: acquiring and analyzing a plurality of pieces of real-time environment sound information, and determining a plurality of pieces of sound signal information; analyzing the plurality of pieces of sound signal information, determining a plurality of pieces of noise information, and determining a plurality of frequency band noise features in combination with preset frequency band information; audience distribution information and sound distribution information are obtained and analyzed, and a preliminary adjustment strategy is determined; based on the preliminary adjustment strategy, determining an adaptive dynamic adjustment strategy according to the plurality of frequency band noise characteristics; and according to the adaptive dynamic adjustment strategy, adaptive dynamic adjustment is carried out on the sound equipment. The determination of the preliminary adjustment strategy can provide good preliminary hearing experience for the audience. Through adaptive adjustment, the sound system can be quickly and effectively adjusted in a complex and variable noise environment, interference of noise on sound effects is reduced, and the best hearing experience is brought to audiences.

The invention relates to the technical field of sound box synchronous playing, and discloses a Bluetooth earphone and sound box synchronous playing method and system supporting stereo synthesis, and the method comprises the steps: carrying out the digital sampling of an input audio signal, and obtaining high-frequency digital audio data and low-frequency digital audio data; performing scanning and stereo function identification on peripheral equipment based on a Bluetooth 5.0 protocol to obtain a target audio equipment list; distributing a main data buffer area and a standby data buffer area; distributing the high-frequency digital audio data to Bluetooth earphone equipment for transmission, distributing the low-frequency digital audio data to sound box equipment for transmission, and when detecting that clock drift among equipment exceeds a preset target value, adjusting a reading rate of a main data buffer area for clock synchronization to obtain an equipment synchronization state; and the signal gain and the equalization parameter of the equipment are dynamically adjusted, and the target synchronous playing audio is output, so that the accurate distribution of the high-frequency data and the low-frequency data is realized, and the overall playing effect of the system is improved.

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

The utility model discloses a speaker acoustic system, which relates to the technical field of loudspeakers. The speaker acoustic system includes a shell and a first limiter; the outer wall of the shell is provided with a groove and a first opening; the side wall of the groove is provided with a receiving space that is recessed in a direction away from the groove, and a connecting port is formed, and the connecting port connects the groove and the receiving space; the receiving space is used to receive a microphone; the first limiter is elastic; the first limiter is provided on the inner wall of the receiving space and is located at the connecting port; the first limiter is used to abut against the microphone in the receiving space to limit the position of the microphone. The user can press the microphone in the groove from the connecting port into the receiving space, and the microphone is received by the receiving space. Since the groove is provided on the outer wall of the shell, the user can put in and take out the microphone on the outer side of the shell, which makes the process of putting in and taking out the microphone simpler and more convenient to use.

The utility model provides a portable sound box. The portable sound box comprises a first half shell, a second half shell and a control panel arranged on the first half shell, a first fixing structure and a second fixing structure are formed on the control panel, a first limiting structure and a second limiting structure are arranged on the inner shell wall of the first half shell, a first limiting space is formed between the first limiting structure and the second limiting structure, a third limiting structure is arranged on the inner shell wall of the second half shell, and the third limiting structure is provided with a second limiting space. The first fixing structure is inserted into the first limiting space, and the second fixing structure is inserted into the second limiting space, so that the control panel is fixed between the first half shell and the second half shell. The fixing mode of the control panel is simple to operate, the assembling efficiency is high, and the manufacturing cost is low; besides, the above design enables the volume of the internal cavity of the portable sound box to be maximized, meets acoustic requirements, and is less in shell material, convenient to assemble and cost-saving. Meanwhile, the portable sound box has an arc-shaped surface and is additionally provided with a bone position and a buckle, so that the overall reliability is improved.

The invention discloses a method and system for guiding an old person to go home through a door lock, and the method comprises the steps: calculating a lost score value through a lost score model according to a condition that a target door lock A detects that the old person fails in continuous verification for multiple times and stays overtime in front of the door, and judging that the old person is in a lost state when the score value exceeds a threshold value, and obtaining a lost judgment result; according to the door lock A, encrypting and broadcasting the elderly biological characteristics to all the door locks, receiving confirmation information returned by the successfully matched door lock B, and obtaining a target room positioning result; according to the floor topological data of the door lock A and the door lock B, generating an optimal guide path, and obtaining path data containing a passing door lock sequence; according to the path data, controlling lamp strips along the way to be lightened according to a preset mode, and cooperating with a directional sound box to play voice guidance; and sending a reset instruction to the path door lock according to the fact that the door lock B detects that the old person successfully unlocks or arrives. According to the embodiment of the invention, convenient, efficient and intelligent door lock guiding can be carried out, and precise guiding and supporting for the elderly are realized.

The utility model provides an outdoor Bluetooth sound equipment with good waterproof effect, which relates to the technical field of Bluetooth sound equipment and comprises a shell and a sound box mechanism, a partition plate is fixedly connected inside the shell, and the sound box mechanism is arranged on the inner side of the shell. Through the arrangement of the sound box mechanism, a battery can be charged without using a charging interface through the wireless charging coil, the integrity of the shell is protected, and through the arrangement of the loudspeaker assembly, the waterproof sound transmission film prevents water from permeating into the loudspeaker and does not affect the quality of sound played by the loudspeaker at the same time. The protection cover can protect the waterproof sound transmission film from being damaged by sharp objects, the sealing performance of the waterproof sound transmission film is protected, through the arrangement of the waterproof assembly, the cavitation column can float upwards when the equipment is completely immersed in liquid, one side of the loudspeaker assembly is made to float on the water surface, and water leakage caused by the fact that the sealing performance of the equipment is damaged by water pressure in the deep position of the liquid is prevented. The sealing ring can further prevent liquid from permeating into the equipment, and the waterproof performance is further improved.

The invention belongs to the technical field of loudspeakers, and discloses a bidirectional loudspeaker group, a sound box and audio equipment, and the bidirectional loudspeaker group comprises a common magnetic circuit module, a first loudspeaker and a second loudspeaker. The common magnetic circuit module comprises a magnetic conduction bowl, a first magnetic gap and a second magnetic gap are formed in the inner side and the outer side of the magnetic conduction bowl in the first direction respectively, a first through hole communicated with the first magnetic gap and the second magnetic gap is formed in the magnetic conduction bowl, and the first loudspeaker and the second loudspeaker are arranged on the two sides of the common magnetic circuit module in the second direction respectively. The first loudspeaker comprises an annular first voice coil, the second loudspeaker comprises an annular second voice coil, the first voice coil and the first magnetic gap are correspondingly arranged, the first voice coil can vibrate in the first magnetic gap in the second direction, the second voice coil and the second magnetic gap are correspondingly arranged, and the second voice coil can vibrate in the second magnetic gap in the second direction. Through the above arrangement, the bidirectional loudspeaker group provided by the invention can achieve the balanced damping, sound quality improvement and heat dissipation requirements.

The invention relates to the technical field of motor test equipment, in particular to a high-efficiency noise reduction and shock absorption soundproof box, two supporting and lifting mechanisms are arranged on a machine table, and a test box main body is arranged on the two supporting and lifting mechanisms; a test base is arranged below the test box main body, and the test base can horizontally move on the machine table; a motor test frame is arranged on the test base, the motor test frame is used for placing a motor and electrifying the motor for operation, the support lifting mechanism can lift the test base in parallel, so that the test base and the test box main body form a sound insulation test space, and the running motor completes noise and vibration tests in the sound insulation test space. Compared with the prior art, the high-efficiency noise reduction and shock absorption soundproof box can realize seamless joint with an automatic production line, the test efficiency is improved, the labor can be saved, and the higher automation degree is realized.

The invention relates to the technical field of audio playing optimization, in particular to a multi-room audio synchronous playing method and system, a storage medium and equipment, and the method comprises the steps: initializing a multi-room audio synchronous playing system, determining a main sound box in a plurality of sound boxes, and obtaining the maximum total transmission rate of a network, the number of sub-sound boxes and the security cache level; the real-time transmission rate and the audio buffer level of each sub-loudspeaker box are collected in real time; calculating a variable quantity of a compressed audio code rate according to the real-time transmission rate of each sub loudspeaker box, and dynamically adjusting an audio compression rate; and calculating the transmission speed variation of each sub-loudspeaker box, and dynamically adjusting the transmission speed of each sub-loudspeaker box. Through the method, a dynamic self-adaptive multi-room audio synchronous playing system is realized, the audio compression ratio and the transmission speed are adjusted in real time according to the network condition, the tone quality and the playing fluency are effectively balanced, and the system can continuously optimize the behavior and provide better user experience through user feedback and a machine learning mechanism.

Disclosed in the present invention are an automatic delay calibration method for a smart speaker system, a device, and a storage medium. The method comprises: initializing a smart speaker system and performing environmental testing to preliminarily configure system parameters; exciting a target sound channel and playing a target test signal; locating a first test signal on the basis of a voice activity detection (VAD) algorithm, determining the start and end of the first test signal, and identifying a time difference of the first test signal to obtain a delay of main channels; locating a time of arrival of a second test signal on the basis of a fast peak search algorithm, and identifying a delay of a subwoofer; and performing delay calibration on the subwoofer and the main channels, and dynamically adjusting delay calibration parameters of the channels on the basis of a delay calibration amount, thereby achieving accurate time alignment between the subwoofer and the main channels. The present invention solves the problem of low-frequency signal delays that are difficult to process in conventional technologies, and particularly makes a breakthrough progress in the coordination of a subwoofer and other sound channels.