Abstract: Embodiments of this application disclose a noise cancellation apparatus and method. The noise cancellation apparatus includes a main control unit and a noise cancellation processing circuit. The main control unit determines a noise cancellation parameter based on a noise cancellation level index or a feature value for determining a matching degree between a headset and an ear canal of a user. The noise cancellation processing unit obtains an inverse phase noise of an ambient noise based on the noise cancellation parameter. After the inverse phase noise is mixed with a played downlink audio signal, the ambient noise can be canceled. In addition, because the noise cancellation parameter is determined from a preset noise cancellation parameter library based on the received or autonomously determined noise cancellation level index, instead of being uniformly configured, a noise cancellation level can be flexibly adjusted, thereby improving a noise cancellation effect and user experience.

Abstract: The present disclosure discloses a method for reminding a replacement of a filter of a vacuum cleaner, including: obtaining a rotating speed difference of a motor within a set time interval; comparing, according to a working parameter of the vacuum cleaner, the rotating speed difference with a preset rotating speed difference threshold, to obtain a comparison result; and determining whether to remind a user to replace the filter according to the comparison result. With the method provided by the present disclosure, the vacuum cleaner may timely and automatically remind the user to replace the filter during the use of the vacuum cleaner, thereby reducing power loss, maintaining the normal use of the vacuum cleaner, and prolonging the service life of the motor.

Abstract: Described are polymeric microparticles, compositions and method of making and using. The polymeric microparticles can include a polymeric core comprising a first polymer and an active agent susceptible to abuse; and a polymeric shell comprising a second polymer.

Abstract: A meme creation method and apparatus are provided, and relate to the terminal field, to enrich forms and content of memes, and improve user experience. The method includes: displaying a first interface, where the first interface includes a speech input button; receiving, in response to an operation of triggering the speech input button by a user, a speech input by the user; recognizing the speech in a preset manner, where recognition in the preset manner includes at least content recognition, and if the speech includes a target keyword, recommending a first image meme set to the user; obtaining, in response to an operation of selecting one image meme from the first image meme set by the user, a target meme based on the image meme selected by the user and the speech or semantics corresponding to the speech; and sending the target meme.

Abstract: This application relates to the artificial intelligence (AI) field, and specifically, to a voice quality enhancement method and a related device. The method includes: after a PNR mode is enabled, obtaining a noisy voice signal and target voice-related data, where the noisy-carrying voice signal includes a voice signal of a target user and an interfering noise signal, and the target voice-related data indicates a voice feature of the target user; and performing noise reduction on the noisy voice signal based on the target voice-related data by using a trained voice noise reduction model to obtain a noise-reduced voice signal of the target user, where the voice noise reduction model is implemented based on a neural network. In embodiments of this application, voice of a target person can be enhanced, and interference can be suppressed.

Abstract: A rendering method and a related device are disclosed, and may be applied to a scenario such as production of music or film and television works, or the like. The method may be performed by a rendering device, or may be performed by a component (for example, a processor, a chip, a chip system, or the like) of a rendering device. The method includes: obtaining a first single-object audio track based on a multimedia file, where the first single-object audio track corresponds to a first sound object; determining a first sound source position of the first sound object based on reference information; and performing spatial rendering on the first single-object audio track based on the first sound source position, to obtain a rendered first single-object audio track.

Abstract: Technologies for expanded beam optical connectors are disclosed. In an illustrative embodiment, a lens array attached to a substrate includes several lenses aligned to optical fibers positioned in grooves in the substrate. The lens array also includes optical fiducials, such as opaque optical fiducials. Auxiliary optical fibers are aligned to the optical fiducials. Light can be sent through the auxiliary optical fibers and onto the optical fiducials, and a pattern of light can be detected after the optical fiducials. The pattern of light can be used to determine a position and/or orientation error of the lens array. The error can be used as feedback in several possible ways, such as repositioning the lens array, positioning a guide pin to match the position and direction of beams through the lenses, or adjusting a parameter of a manufacturing process.

Abstract: An optical inspection tool may include at least a first image capture unit and a second image capture unit for inspecting specimens having a substantially V-shaped grooves. The first image capture unit may be arranged in a first orientation so as to be directable towards a first angular surface of the V-shaped groove of each specimen. The second image capture unit may be arranged in a second orientation so as to be directable towards a second angular surface of the V-shaped groove of each specimen. The first image capture unit may be configured to capture images of defects and/or contamination on the first angular surface and the second image capture unit may be configured to capture images of defects and/or contamination on the second angular surface.

Abstract: This application discloses a wind noise suppression device including a first woven mesh (101), a second woven mesh (102), a device housing (103), and a structural component (104). The device housing (103) is provided with a sound pickup hole (1031). The first woven mesh (101) covers the sound pickup hole (1031). The structural component (104) is disposed at the sound pickup hole (1031). The structural component (104) is connected to the device housing (103) to form a cavity. The structural component (104) is provided with a sound transmission hole (1041). The second woven mesh (102) covers the sound transmission hole (1041). A microphone is disposed at the sound transmission hole (1041). Because structural characteristics of all the components the device, wind noise included in an audio signal received by the microphone through the sound transmission hole (1041) is effectively reduced.

Abstract: An apparatus includes a light source configured to emit light to a translucent material and an embedded feature disposed in the translucent material, a first linear polarizer configured to linearly polarize the emitted light, based on a first orientation of an optical axis of the first linear polarizer, and a second linear polarizer configured to filter the light that is reflected from the translucent material, from the light that is reflected from the embedded feature and the translucent material, based on a second orientation of an optical axis of the second linear polarizer. The apparatus further includes a sensor configured to receive the light reflected from the embedded feature, from which the light reflected from the translucent material is filtered, and capture an image of the embedded feature and the translucent material, based on the received light.

Abstract: A voice conversion method and a related device are provided to implement diversified human voice beautification. A method in embodiments of this application includes: receiving a mode selection operation input by a user, where the mode selection operation is for selecting a voice conversion mode. A plurality of provided selectable modes include: a style conversion mode, for performing speaking style conversion on a to-be-converted first voice; a dialect conversion mode, for adding an accent to or removing an accent from the first voice; and a voice enhancement mode, for implementing voice enhancement on the first voice. The three modes have corresponding voice conversion networks. Based on a target conversion mode selected by the user, a target voice conversion network corresponding to the target conversion mode is selected to convert the first voice, and output a second voice obtained through conversion.

Abstract: Embodiments of this application provide an audio data processing method and apparatus, and a sound box system, which are related to the field of audio technologies, and improve sound quality of an audio playing device. The sound box system includes a full-frequency sound box and a low-frequency sound box. The full-frequency sound box is physically connected to the low-frequency sound box by using a first fastening part of the full-frequency sound box and a second fastening part of the low-frequency sound box. Furthermore, the full-frequency sound box communicates with the low-frequency sound box by using a first communication part of the first fastening part and a second communication part of the second fastening part, where the first fastening part and the second fastening part are a group of paired connection parts, and the first communication part and the second communication part are a group of paired communication parts.

Abstract: In an example, a method comprises defining an object comprising a plurality of discrete components, each of which comprises a set of discrete formulas having a predefined order. The method initiates an evaluation of each discrete component by looping over each formula of that discrete component to produce a result set according to the predefined order by evaluating without specifying a dimensionality to produce the result set with a single row, or evaluating the formula with a specified dimensionality to produce the result set with a plurality of rows. The method displays a calculation user interface, determines that an action exists that is associated with at least one formula of at least one discrete component, displays a user-selectable element corresponding to the action, and automatically pauses computation of at least a portion of the evaluation until input selecting the user-selectable element is received.

Abstract: A processing method includes projecting a display content of an electronic device to a terminal device having a display output module through a connection channel; and acquiring sensing parameters through a gravity sensor. The method further includes in response to determining that the sensing parameters satisfy a support surface placement condition, processing input parameters based on a plane transformation strategy to obtain response parameters, the input parameters obtained by a touch sensing module for a focus displayed in an output area of the display output module. The method further includes controlling, according to the response parameters, a display position of the focus in the output area to respond to a movement operation, a moving direction of the display position of the focus in the output area being consistent with a direction of the movement operation of the operating body with respect to the reference.

Abstract: A headset has at least two functions of an active noise control (ANC) function, an ambient sound hear through (HT) function, or an augment hearing (AH) function. The headset includes a first microphone and a second microphone. The first microphone is configured to collect a first signal. The first signal indicates a sound in a current external environment. The second microphone is configured to collect a second signal. The second signal indicates an ambient sound in an ear canal of a user wearing the headset. The headset can be a left earphone or a right earphone. Processing modes or processing strengths of the left earphone and the right earphone may be the same or different. The headset obtains a target mode based on a scene type of the current external environment; and obtains a second audio signal based on the target mode, the first signal, and the second signal.

Abstract: This application provides example psychoacoustics-based audio encoding methods and apparatuses. One example method includes receiving audio data. The audio data can be decoded. Auditory feature information of a user can be obtained, where the auditory feature information includes at least one of the following: personal information, listening test result information, or frequency response curve information. A psychoacoustics model parameter of the user can be calculated based on the auditory feature information of the user, where the psychoacoustics model parameter includes at least one of the following: an intra-band masking parameter, a slope of a low-frequency inter-band masking line, a slope of a high-frequency inter-band masking line, or a human ear quiet threshold curve. The decoded audio data can be encoded based on the psychoacoustics model parameter of the user.

Abstract: Active noise cancellation method is provided, including: when the headset is in an ANC working mode, obtaining a first group of filtering parameters, and performing noise cancellation by using the first group of filtering parameters. The first group of filtering parameters is one of N1 groups of filtering parameters prestored in the headset. The N1 groups of filtering parameters are respectively used to perform noise cancellation on ambient sound in N1 leakage states. The N1 leakage states are formed by the headset and N1 different ear canal environments. In a current wearing state of the headset, for same ambient noise, noise cancellation effect obtained when the first group of filtering parameters is applied to the headset is better than noise cancellation effect obtained when another filtering parameter in the N1 groups of filtering parameters is applied to the headset. N1 is a positive integer greater than or equal to 2.

Abstract: This application discloses a method for reducing an occlusion effect of an earphone, and a related apparatus. The method is applied to an earphone having at least one microphone and a speaker. The method includes: detecting occurrence of at least one of the following events: a user speaks and the user is in a motion state; and triggering at least one of the following operations in response to the at least one event: processing the user's sound signal based on the at least one microphone to suppress an occlusion effect of the earphone, and playing an audio by using the speaker, to mask a sound signal in the user's auditory canal. Embodiments of this application can reduce or even eliminate the earphone occlusion effect, to improve user experience.

Abstract: A meme creation method and apparatus are provided, and relate to the terminal field, to enrich forms and content of memes, and improve user experience. The method includes: displaying a first interface, where the first interface includes a speech input button; receiving, in response to an operation of triggering the speech input button by a user, a speech input by the user; recognizing the speech in a preset manner, where recognition in the preset manner includes at least content recognition, and if the speech includes a target keyword, recommending a first image meme set to the user; obtaining, in response to an operation of selecting one image meme from the first image meme set by the user, a target meme based on the image meme selected by the user and the speech or semantics corresponding to the speech; and sending the target meme.

Abstract: A human immunoglobulin against Methicillin-resistant Staphylococcus aureus, and human immunoglobulin against Methicillin-resistant Staphylococcus aureus is prepared by collecting plasma of a healthy plasma donor immunized with Methicillin-resistant Staphylococcus aureus vaccine, wherein the Staphylococcus aureus vaccine has a valence of antigen mHla of no less than 1:3,200, valence of antigen IsdB of no less than 1:1,600, valence of antigen MntC of no less than 1:1,600, valence of antigen mSEB of no less than 1:6,400, and valence of antigen SpA5 of no less than 1:400, and total content of IgG monomers and dimers is over 90.0%. The human immunoglobulin against Methicillin-resistant Staphylococcus aureus has high valence and high purity, which can not only have good effects for preventing and treating Methicillin-resistant Staphylococcus aureus infection, but also avoid a problem of drug resistance caused by antibiotic treatment, and has important clinical significance and broad market prospects.