Abstract: Herein are disclosed an audio signal processing method and apparatus, an electronic device, and a storage medium. The method includes: obtaining an audio signal acquired by an application while an account logging into the application is in a microphone mute state in a multi-person voice call; obtaining gain parameters, for each of a plurality of audio frames in the audio signal, respectively on a plurality of bands in a first band range; and outputting a prompt message responsive to a determination, based on the gain parameters, that a target voice is contained in the audio signal, the prompt message providing a prompt to disable the microphone mute state of the account.

Abstract: A control method for realizing manipulation of Bluetooth headset and intercom network is disclosed. Where the Bluetooth headset is configured with a sensor and a Bluetooth RF module, and the sensor is configured to, detect acceleration values of x-axis, y-axis and z-axis in real time; identify a change of the acceleration values as a specific operation action in response to the acceleration values of one or more axes of the x-axis, y-axis and z-axis exceeds a threshold value; and turn on a corresponding operation of the Bluetooth headset. When the threshold value is a first threshold value, the Bluetooth headset turns on a Bluetooth pairing function. When the threshold value is a second threshold value, the Bluetooth headset turns on a Bluetooth teaming function. The control method can realize fast and accurate control of pairing and intercom functions of the Bluetooth headset, and thereby enhancing effect of a user's experience.

Abstract: A control system and control method for LED string light source with fast control speeds, occupy low signal transmission capacity, and can smartly detect faults in the LED string light source, wherein comprising an LED string light provided with a plurality of LED point light sources, a power line and data control line connected between the decoder controller and each LED point light source. Address lines are used in the LED string light source to connect all address pins of the smart driver chip in series based on the numerical order of the electrical connection of the decoder controller. The smart driver chip requires rewriting the temporary address once every power-on cycle. Since the chip has a signal feedback function, users do not need specialized personnel to effectively use the decoder controller to assess the status of the point light source.

Abstract: The present application provides a method and an apparatus for calculating a duty cycle of a lighting, a terminal, and a storage medium. The method includes: determining a first expression formula of a chromaticity coordinate, a luminous flux and an input duty cycle of each path of three paths of a RGB color light source; calibrating, based on the first expression formula and tristimulus values of the three paths of the RGB color light source under a full current operation, a nonlinear transformation of the luminous flux, to obtain a first duty cycle value; and calibrating, based on the first duty cycle value and the first expression formula, a nonlinear transformation of the chromaticity coordinate, to obtain a second duty cycle value; and controlling displaying colors of the RGB color light source based on the second duty cycle value.

Abstract: Herein are disclosed an audio signal processing method and apparatus, an electronic device, and a storage medium. The method includes: obtaining an audio signal acquired by an application while an account logging into the application is in a microphone mute state in a multi-person voice call; obtaining gain parameters, for each of a plurality of audio frames in the audio signal, respectively on a plurality of bands in a first band range; and outputting a prompt message responsive to a determination, based on the gain parameters, that a target voice is contained in the audio signal, the prompt message providing a prompt to disable the microphone mute state of the account.

Abstract: A method includes obtaining historical network performance data of each of data transmission objects, calculating, based on the historical network performance data, group network performance data of each of object groups, performing weighted calculation on the group network performance data of the object groups to obtain comprehensive network performance data of the data transmission objects, inputting the comprehensive network performance data and the group network performance data into a trained RL model to obtain a data transmission quality index of each object group, for each object group, determining a data transmission parameter of the object group based on the data transmission quality index and the group network performance data of the object group, and determining, in response to receiving a data transmission request transmitted by a target data transmission object, a target data transmission parameter based on a target object group to which the target data transmission object belongs.

Abstract: The present disclosure provides a distributed phase-shifting transforming apparatus, including N transformer rectifier units, where each transformer rectifier unit includes two three-phase three-winding transformers and four rectifier circuits, each three-phase three-winding transformer includes first windings on the primary side and second windings and third windings on the secondary side, AC power output by the second windings and the third windings on the secondary side is output after being rectified by the rectifier circuits. Each transformer rectifier unit is configured such that: one set of the two first windings on the primary side and the two second windings on the secondary side is phase-shifted by 15° from each other, and the other set has the same phase angle; and the second windings and the third windings of each three-phase three-winding transformer are phase-shifted by 30° from each other.

Abstract: Disclosed herein is a dual-active bridge converter and methods of operating the same. The dual-active bridge converter can include a transformer, a DC-AC converter, an AC-DC converter, and/or a control device. The DC-AC converter can be coupled to a first DC bus and a primary side of the transformer. The AC-DC converter can be coupled to a secondary side of the transformer and a second DC bus. The control device can send a first PWM signal to the DC-AC converter and a second PWM signal to the AC-DC converter. The first and second PWM signals can initiate the output voltage at zero, add jump edges at odd-numbered current harmonics, or make a phase of the input voltage trail a phase of the output voltage of the DC-AC converter. The control device can adjust the PWM signals for transformer current regulation or pulse overlap control.

Abstract: A method includes obtaining historical network performance data of each of data transmission objects, calculating, based on the historical network performance data, group network performance data of each of object groups, performing weighted calculation on the group network performance data of the object groups to obtain comprehensive network performance data of the data transmission objects, inputting the comprehensive network performance data and the group network performance data into a trained RL model to obtain a data transmission quality index of each object group, for each object group, determining a data transmission parameter of the object group based on the data transmission quality index and the group network performance data of the object group, and determining, in response to receiving a data transmission request transmitted by a target data transmission object, a target data transmission parameter based on a target object group to which the target data transmission object belongs.

Abstract: This application relates to a howling suppression method and apparatus, a computer device, and a storage medium. The method includes obtaining a current audio signal corresponding to a current time period, and performing frequency domain transformation on the current audio signal; dividing the frequency domain audio signal and determining a target subband; obtaining a current howling detection result and a current voice detection result that correspond to the current audio signal, and determining a subband gain coefficient; obtaining a past subband gain corresponding to an audio signal within a past time period, and calculating a current subband gain corresponding to the current audio signal based on the subband gain coefficient and the past subband gain; and suppressing howling on the target subband based on the current subband gain, to obtain a first target audio signal corresponding to the current time period.

Abstract: A lighting device includes a flexible substrate, four types of LED modules, and a driver. The substrate has an elongated area divided into four bands along the Y-axis. First-type LEDs are placed on the first band in a row along the X-axis, parallel to the substrate's length. Second-, third-, and fourth-type LEDs are placed on the second, third, and fourth bands, respectively. Each type emits light with different optical properties. The Y-axis is perpendicular to the X-axis, with first-type LEDs aligned with fourth-type LEDs and second-type LEDs aligned with third-type LEDs. First-type LEDs are offset from second-type LEDs along the X-axis. The driver converts external power into four currents, adjusting their relative ratios to control the combined optical output.

Abstract: The present invention relates to a compound for treating thrombotic diseases. Specifically, the present invention provides a compound represented by formula I, or a pharmaceutically acceptable salt, or an enantiomer, or a diastereoisomer, or an atropisomer, or a racemate, or a polymorph, or a solvate, or an isotopically labeled derivative thereof. The compound disclosed in the present invention can be specifically combined with SH3 domain protein of Src kinase and then interfere the combination of integrin ?IIb?3 and Src kinase, so that outside-to-inside signal transduction is selectively inhibited and inside-to-outside signal transduction is not influenced; thus, while resisting thrombus, the compound of the present invention does not affect the normal physiological hemostatic function, prevents the occurrence of hemorrhagic side effect, and can be used as a new generation of effective medicine for preventing and treating thrombosis-related cardiovascular and cerebrovascular diseases.

Abstract: A data packet transmission method performed by a gateway node includes determining a first Internet protocol (IP) address from an IP address pool according to a request data packet transmitted by a client. The IP address pool includes one or more reserved IP addresses not recognizable by a business server. The method further includes generating a first data packet according to the request data packet and the first IP address as a source IP address of the first data packet, performing tunnel encapsulation on the first data packet to obtain a second data packet that includes content of the first data packet, and transmitting the second data packet to the business server.

Abstract: A lighting device includes a flexible substrate, four types of LED modules, and a driver. The substrate has an elongated area divided into four bands along the Y-axis. First-type LEDs are placed on the first band in a row along the X-axis, parallel to the substrate's length. Second-, third-, and fourth-type LEDs are placed on the second, third, and fourth bands, respectively. Each type emits light with different optical properties. The Y-axis is perpendicular to the X-axis, with first-type LEDs aligned with fourth-type LEDs and second-type LEDs aligned with third-type LEDs. First-type LEDs are offset from second-type LEDs along the X-axis. The driver converts external power into four currents, adjusting their relative ratios to control the combined optical output.

Abstract: A casting control method and apparatus are provided. The casting control method and apparatus are applied to the field of video processing technologies. The method is applied to a first electronic device. The first electronic device includes a GPU and an HWC. When the first electronic device is in a casting state, the to-be-synthesized layer can be separately sent to the GPU and the HWC if the video security layer is not included. The first electronic device synthesizes the to-be-synthesized layer in parallel by using the GPU and the HWC.