Beijing Sj Environmental Protection and New Material Co., Ltd.

Beijing Sanju Environmental Protection and New Material Co., Ltd.

Beijing Honor Device Co., Ltd.

Honor Device Co., Ltd.

Beijing Sj Environment Protection and New Material Co., Ltd.

Huawei Technologies Co., Limited

Zhenyi Liu

Feng Li

Jianyong Xuan

Ke Lin

Wenjun Mao

Haikuan Gao

Fengren Liu

Xiao Yang

Zhimin Zhang

Liying Li

Xiangsheng Wang

Qunyang Gao

Risheng Xia

Yongsheng Yu

Wenwen Song

Lixian Wang

Jie Zhang

Hua Chen

Xiaowei Li

Zhichao Wang

Chienfeng Yeh

Zhiqiang Wu

Qing Wu

Jianfei Chu

Youcheng Liu

Guozhi Cao

Boshu Liu

Shengwei Zhang

Yuanyou Wu

Wenbin Zhao

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.

Audio processing method and electronic device

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.

Voice processing method and electronic device

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.

Sound recording method and apparatus

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.

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.

Video processing method and related electronic device

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.

Video processing method and electronic device

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 (FeO), 5%-10% alkali metal oxide (KO), 5-35% anatase TiO, 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 KCO, calcining to activate at 500&#xb0; C.-700&#xb0; C., mixing with the magnetic iron oxide red and binder, roll molding at room temperature to form balls which are dried at 100&#xb0; C.-150&#xb0; 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%.

Desulfurizer for conversion and absorption of high-concentration carbonyl sulfide and a desulfurizer for catalytic conversion and absorption of carbon disulfide and their preparation methods

The present invention relates to a novel use of magnetic iron oxide red FeOas a catalyst in oxidizing methanthiol to prepare dimethyl disulfide. The magnetic iron oxide red FeOaccording to the present invention has extremely high catalytic selectivity in catalyzing and oxidizing methanthiol to prepare dimethyl disulfide. The magnetic iron oxide red FeOis 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.

Use of magnetic iron oxide red in catalyzing and oxidizing methanthiol and methods for preparing and appling same

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

Preparation method and application of magnetic iron oxide and desulfurizer containing the magnetic iron oxide as active component

A method for preparing magnetic iron oxide FeO, comprising the following steps: (1) preparing a ferrous salt solution with solid soluble ferrous salt; (2) preparing a hydroxide solution; (3) mixing said hydroxide solution and said ferrous salt solution in a co-current manner for reaction at an alkali ratio of 0.6-0.8 and a reaction temperature not exceeding 30&#xb0; C.; (4) after the reaction in step (3) is finished, yielding a first mixture, then charging said first mixture with a gas containing oxygen for oxidation, and controlling the first mixture at a pH value of 6-8 until the oxidation is finished to yield a second mixture; (5) filtering, washing with water and drying said second mixture obtained in step (4) to yield a precursor; and (6) calcining the precursor obtained in step (5) at 250-400&#xb0; C.

Method for preparing magnetic iron oxide

Methods for preparing a composition containing amorphous iron oxide hydroxide. Methods for regeneration of the amorphous iron oxide hydroxide after it has been used as desulfurizer. Regenerable desulfurizer with high sulfur capacity containing amorphous iron oxide hydroxide, not less than 88% w/w, and organic binder not less than 7% w/w. The organic binder is sodium carboxymethylcellulose, sesbania powder, cellulose powder, or a mixture thereof A method for preparing the desulfurizer. A method for regenerating the waste agent produced after the desulfurizer and the composition containing the desulfurizer are used as desulfurizer. This method allows the desulfurizer and the composition containing the desulfurizer to be regenerated and reused avoiding the need for landfill disposal and environmental pollution.

Methods for preparing and regenerating materials containing amorphous iron oxide hydroxide and desulfurizer comprising the same

A method for preparing amorphous iron oxide hydroxide, comprising following steps: (1) preparing a ferrous salt solution with solid soluble ferrous salt; (2) preparing a hydroxide solution; (3) mixing said hydroxide solution and said ferrous salt solution in a co-current manner for reaction at an alkali ratio of 0.6&#x2dc;0.8 and a reaction temperature not exceeding 30&#xb0; C.; (4) after the reaction in step (3) is finished, yielding a first mixture, then charging said first mixture with a gas containing oxygen for oxidation, and controlling the first mixture at a pH value of 6&#x2dc;8 until the oxidation is finished to yield a second mixture; and (5) filtering, washing with water and drying said second mixture obtained in step (4) to yield the amorphous iron oxide hydroxide.

Method for preparing amorphous iron oxide hydroxide

Method for preparing material containing amorphous iron oxide hydroxide, the method including: mixing an aqueous ferrous salt solution and hydroxide solution or solid hydroxides at the temperature of below 70&#xb0; C., filtering the reaction solution, washing the filter cake, preparing suspension solution of the filter cake, blowing an oxygen-containing gas into the suspension solution to oxidize the ferrous iron, and then filtering and drying. The material after being used as desulfurization agent can be repeatedly regenerated through oxidation in an oxygen-containing gas. A desulfurization agent, and methods for preparation and repeated regeneration thereof. The desulfurization agent contains the material and organic binders, and may also include a small amount of additives. The organic binders are selected from sodium carboxymethyl cellulose, sesbania powder, and cellulose powder, and the additives are selected from sawdust, rice husk power, and bran.

Preparation and repeated regeneration of material containing amorphous iron oxide hydroxide, desulfurization agents containing the material, and preparation and repeated regeneration thereof

Methods for preparing a composition containing amorphous iron oxide hydroxide. Methods for regeneration of the amorphous iron oxide hydroxide after it has been used as desulfurizer. Regenerable desulfurizer with high sulfur capacity containing amorphous iron oxide hydroxide, not less than 88% w/w, and organic binder not less than 7% w/w. The organic binder is sodium carboxymethylcellulose, sesbania powder, cellulose powder, or a mixture thereof. A method for preparing the desulfurizer. A method for regenerating the waste agent produced after the desulfurizer and the composition containing the desulfurizer are used as desulfurizer. This method allows the desulfurizer and the composition containing the desulfurizer to be regenerated and reused avoiding the need for landfill disposal and environmental pollution.

A desulfurizer containing at least a composition of a highly concentrated amorphous iron oxide hydroxide as the active ingredient. A method for preparing a composition containing at least a highly concentrated amorphous iron oxide hydroxide. A method for regenerating the desulfurizer. The desulfurizer contains at least the composition of a highly concentrated amorphous iron oxide hydroxide as the active ingredient and a binder. The composition and the desulfurizer have a high sulfur capacity and can be regenerated. This saves resources and reduces environmental pollution. The method for regenerating the desulfurizer includes at least the following steps: a) mixing a solid soluble ferrous salt with a solid hydroxide, b) kneading the mixture and allowing it to react at temperatures not exceeding 90&#xb0; C., c) drying in air, d) washing with water and filtering to yield a solid, and e) drying naturally or roasting the solid.

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Beijing, China

Zhenyi Liu