Abstract: An audio processing method and an electronic device are provided. In a dual-view recording mode, the electronic device perform filtering, azimuth virtualization, and remixing on collected audio based on focal lengths of pictures in two display regions, relative positions of the two display regions, and values of areas of the two display regions, so that audio-picture presentation synchronization of the picture and the sound is achieved, and a user has synchronized three-dimensional experience in terms of hearing and vision.

Abstract: This application provides a video processing method and a related electronic device. The video processing method includes: When generating a video, the electronic device may perform image zooming based on a change in a zoom ratio, or may perform audio zooming on an audio based on a change in a zoom ratio. That the electronic device performs audio zooming on the audio includes: When the zoom ratio increases and an angle of view decreases, suppressing a sound of an object outside a photographing range and enhancing a sound of a photographed object within the photographing range; when the zoom ratio decreases and the angle of view increases, suppressing a sound of an object outside the photographing range and weakening a sound of a photographed object within the photographing range.

Abstract: A video processing method and a terminal are provided. In the method, when the terminal records a video, the terminal may shoot (acquire) an image by using a camera (the image shot by using the camera is referred to as an original image below), and determine a focus of the shooting based on the original image. Then, the terminal may implement image focus tracking on a photographed object displayed in a first image region in which the focus is located, and implement audio focus tracking on a photographed object displayed in a second image region in which the focus is located. A focus tracking video is obtained through the image focus tracking and the audio focus tracking.

Abstract: A video processing method and an electronic device, wherein the method includes: running a camera application program on an electronic device; displaying a first image, where the first image is an image captured when the electronic device is in a first shooting mode; obtaining audio data, where the audio data is data captured by the at least two pickup apparatuses; obtaining a switching instruction based on the audio data, where the switching instruction is used to instruct the electronic device to switch from the first shooting mode to a second shooting mode; and displaying a second image, where the second image is an image captured when the electronic device is in the second shooting mode. Based on the technical solution of this application, video recording can be completed without requiring a user to switch shooting modes of the electronic device, thereby improving shooting experience of the user.

Abstract: Embodiments of this application provide an audio processing method and apparatus. The method includes: A terminal device displays a first interface; when the terminal device receives an operation on a control for enabling recording, the terminal device displays a second interface and obtains a first audio signal; the terminal device performs sound source separation on the first audio signal to obtain N channels of audio signals, where N is an integer greater than or equal to 2; and the terminal device generates a first video and a second video, where when the N channels of audio signals satisfy a preset condition, the second video is obtained based on the N channels of audio signals and a second picture, and a target audio signal is an audio signal of a target object.

Abstract: A video processing method and an electronic device, wherein the method includes: running a camera application program on an electronic device; displaying a first image, where the first image is an image captured when the electronic device is in a first shooting mode; obtaining audio data, where the audio data is data captured by the at least two pickup apparatuses; obtaining a switching instruction based on the audio data, where the switching instruction is used to instruct the electronic device to switch from the first shooting mode to a second shooting mode; and displaying a second image, where the second image is an image captured when the electronic device is in the second shooting mode. Based on the technical solution of this application, video recording can be completed without requiring a user to switch shooting modes of the electronic device, thereby improving shooting experience of the user.

Abstract: This application provides a video processing method and a related electronic device. The video processing method includes: When generating a video, the electronic device may perform image zooming based on a change in a zoom ratio, or may perform audio zooming on an audio based on a change in a zoom ratio. That the electronic device performs audio zooming on the audio includes: When the zoom ratio increases and an angle of view decreases, suppressing a sound of an object outside a photographing range and enhancing a sound of a photographed object within the photographing range; when the zoom ratio decreases and the angle of view increases, suppressing a sound of an object outside the photographing range and weakening a sound of a photographed object within the photographing range.

Abstract: An audio processing method is provided. The method includes: at a first time point, obtaining a first audio signal and a second audio signal, where the first audio signal is used to indicate information acquired by the first microphone, and the second audio signal is used to indicate information acquired by the second microphone; determining according to a correlation between the first audio signal and the second audio signal, that the first audio signal includes a first noise signal and that the second audio signal includes no first noise signal; and performing processing on the first audio signal to obtain a third audio signal, where the third audio signal includes no first noise signal.

Abstract: An audio processing method and an electronic device are provided. In a dual-view recording mode, the electronic device perform filtering, azimuth virtualization, and remixing on collected audio based on focal lengths of pictures in two display regions, relative positions of the two display regions, and values of areas of the two display regions, so that audio-picture presentation synchronization of the picture and the sound is achieved, and a user has synchronized three-dimensional experience in terms of hearing and vision.

Abstract: Embodiments of the present invention provide a sound recording method and apparatus. The method includes: displaying, by a terminal device, a first interface, where the first interface includes a first control, and the first control includes: a first option used for selecting a recording whose output specification is sound quality with a first bit width, and a second option used for selecting a recording whose output specification is sound quality of a second bit width; and processing, by the terminal device in a case that the terminal device receives an operation of selecting the first option, a recording obtained by a microphone, to obtain a recording with the first bit width; or processing, by the terminal device in a case that the terminal device receives an operation of selecting the second option, a recording obtained by a microphone, to obtain a recording with the second bit width.

Abstract: An embodiment of the present invention is directed to developing Autonomous Fraud Risk Management to identify emerging fraud trends in near real-time and mitigate risk by executing strategies to address fraud in a timely manner.

Abstract: A voice processing method is provided. The method includes: An electronic device first performs de-reverberation processing on a first frequency domain signal to obtain a second frequency domain signal, performs noise reduction processing on the first frequency domain signal to obtain a third frequency domain signal, and then performs, based on a first voice feature of the second frequency domain signal and a second voice feature of the third frequency domain signal, fusion processing on the second frequency domain signal and the third frequency domain signal that belong to a same channel of first frequency domain signal, to obtain a fused frequency domain signal. In this case, background noise in the fused frequency domain signal is not damaged, thereby effectively ensuring stable background noise of a voice signal obtained after voice processing. In addition, an electronic device, a chip system, and a computer-readable storage medium are provided.

Abstract: Embodiments of this application provide a sound signal processing method and an electronic device, which can reduce an interference sound signal in a sound during video recording and improve quality of a sound signal during the video recording. The method is applied to an electronic device. The method includes: acquiring, by the electronic device, a first sound signal; the first sound signal being a sound signal during video recording; processing, by the electronic device, the first sound signal to obtain a second sound signal; and outputting, by the electronic device, the second sound signal when playing back a recorded video file. Energy of a sound signal in the second sound signal in a non-target orientation is lower than energy of a sound signal in the first sound signal in the non-target orientation. The non-target orientation is an orientation outside a field of view range of a camera during video recording.

Abstract: An embodiment of the present invention is directed to developing Autonomous Fraud Risk Management to identify emerging fraud trends in near real-time and mitigate risk by executing strategies to address fraud in a timely manner.

Abstract: A voice processing method is provided, including: when a terminal records a video, if a current video frame includes a face and a current audio frame includes a voice, determining a target face in the current video frame; obtaining a target distance between the target face and the terminal; determining a target gain based on the target distance, where a larger target distance indicates a larger target gain; separating a voice signal from a voice signal of the current audio frame; and performing enhancement processing on the voice signal based on the target gain, to obtain a target voice signal. This implements adaptive enhancement of a human voice signal during video recording.

Abstract: Provided is a high-concentration carbonyl sulfide conversion-absorption type desulfurizer for use at medium-low temperature and preparation method thereof. The desulfurizer comprises 50%-75% magnetic iron oxide red (Fe21.333O32), 5%-10% alkali metal oxide (K2O), 5-35% anatase TiO2, and 5-10% shaping binder. The method of preparing the desulfurizer comprises: uniformly mixing a metatitanic acid prepared using ferrous sulfate recycled as a by-product from titanium dioxide production with K2CO3, calcining to activate at 500° C.-700° C., mixing with the magnetic iron oxide red and binder, roll molding at room temperature to form balls which are dried at 100° C.-150° C. to obtain the desulfurizer. The desulfurizer has a hydrolysis conversion of carbonyl sulfide higher than 99%, and has a higher sulfur capacity more than 25%.

Abstract: The present invention relates to a novel use of magnetic iron oxide red Fe21.333O32 as a catalyst in oxidizing methanthiol to prepare dimethyl disulfide. The magnetic iron oxide red Fe21.333O32 according to the present invention has extremely high catalytic selectivity in catalyzing and oxidizing methanthiol to prepare dimethyl disulfide. The magnetic iron oxide red Fe21.333O32 is prepared with a carbonate and a ferrite as raw materials, has advantages of low cost and simple preparation process, and is suitable for industrial production.

Abstract: A method of preparing magnetic iron oxide Fe21.333O32, which includes the steps of preparing a solid green rust and calcining the solid green rust to obtain the magnetic iron oxide Fe21.333O32. Also provided is the application of magnetic iron oxide Fe21.333O32 as an active material in desulfurization at a medium temperature. Also provided is a desulfurizer which uses magnetic iron oxide Fe21.333O32 and the application thereof. The present preparation method has simple steps and a short production period.

Abstract: Provided is a high-concentration carbonyl sulfide conversion-absorption type desulfurizer for use at medium-low temperature and preparation method thereof. The desulfurizer comprises 50%-75% magnetic iron oxide red (Fe21.333O32), 5%-10% alkali metal oxide (K2O), 5-35% anatase TiO2, and 5-10% shaping binder. The method of preparing the desulfurizer comprises: uniformly mixing a metatitanic acid prepared using ferrous sulfate recycled as a by-product from titanium dioxide production with K2CO3, calcining to activate at 500° C.-700° C., mixing with the magnetic iron oxide red and binder, roll molding at room temperature to form balls which are dried at 100° C.-150° C. to obtain the desulfurizer. The desulfurizer has a hydrolysis conversion of carbonyl sulfide higher than 99%, and has a higher sulfur capacity more than 25%.

Abstract: The present invention relates to a novel use of magnetic iron oxide red Fe21.333O32 as a catalyst in oxidizing methanthiol to prepare dimethyl disulfide. The magnetic iron oxide red Fe21.333O32 according to the present invention has extremely high catalytic selectivity in catalyzing and oxidizing methanthiol to prepare dimethyl disulfide. The magnetic iron oxide red Fe21.333O32 is prepared with a carbonate and a ferrite as raw materials, has advantages of low cost and simple preparation process, and is suitable for industrial production.