Abstract: An audio signal processing method including the following steps: acquiring a bone conduction audio signal collected by a bone conduction vibration pickup device; acquiring a low frequency transfer function which matches the bone conduction audio signal and a high frequency transfer function corresponding to the low frequency transfer function, wherein the low frequency transfer function and the high frequency transfer function are corresponding transfer functions between the bone conduction audio signal and an air conduction audio signal which correspond to the same voice; and performing frequency domain extension on the bone conduction audio signal on the basis of the low frequency transfer function and the high frequency transfer function, and taking the extended initial audio as output audio. The effect of improving the integrity pf a voice signal collected by a terminal device is achieved.

Abstract: A signal processing method and device of a MEMS microphone and a MEMS microphone are disclosed. The method comprises: acquiring a first electrical signal obtained by converting a received optical signal by an optical sensor disposed near a sound hole of the MEMS microphone; acquiring a second electrical signal output by the MEMS microphone; and judging that the second electrical signal is an interference signal when within a substantially overlapping time range, the first electrical signal acquired reaches a preset first threshold value and the second electrical signal acquired meets a preset condition.

Abstract: A smart device and control method therefor, and a computer readable storage medium are disclosed. The smart device comprises a supporting part and a moving part coupled to the supporting part, a first speaker and a second speaker, the first speaker is provided on the supporting part of the smart device, and the second speaker is provided on an end of the moving part distal to the supporting part.

Abstract: The embodiments of the present disclosure provide a headset device with speakers, a signal processing method and an analysis system thereof. The headset device with speakers includes a speaker assembly and a first sound receiving assembly, and provides noise reduction effect on surrounding environment by the signal processing method for the headset with speakers. The speaker assembly includes a signal processing module. The signal processing module performs calibration by the sound transfer function to solve the playback influence arisen from the sound transmission distance between the speaker assembly and the human ear. The signal processing module performs calibration to calibrate the signal outputted by the speaker assembly to cancel the environmental noise, so that it can effectively solve the problem of attenuation of the sound received by the human ear due to the sound transmission distance of the open speaker.

Abstract: A method, an apparatus and a system for testing a bone conduction communication device is disclosed. A vibration exciter is disposed at a wearing position of an artificial head model where the bone conduction communication device is located. The method comprises: transmitting a test audio to first and a second digital signal processors; transmitting an audio signal processed by the first digital signal processor to the vibration exciter, and simulating vibration of a bone at a corresponding part by which human generates sound using the vibration exciter, to generate a vibration signal; transmitting an audio signal processed by the second digital signal processor to an artificial mouth and simulating human sound production to generate an acoustic signal; collecting the vibration signal and the sound signal using the bone conduction communication device, and testing the bone conduction communication device according to the collected vibration signal and sound signal.

Abstract: A wake-up test device for intelligent voice equipment is taught herein. The wake-up test device includes a fixed frame. The wake-up test device further includes a first clamping assembly arranged on the fixed frame. The wake-up test device further includes a second clamping assembly arranged on the fixed frame. The first clamping assembly and the second clamping assembly can be brought to be close to or far away from each other. The wake-up test device further includes a vibration exciter arranged on the first clamping assembly or the second clamping assembly. An object to be tested is placed on the vibration exciter, the first clamping assembly and the second clamping assembly are brought to be close to each other and fix the object to be tested on the vibration exciter, so that the object to be tested attaches to the vibration exciter.

Abstract: An audio signal processing method is disclosed. The method comprises the following steps: acquiring a first audio signal received by a bone conduction sensor and a second audio signal received by the microphone; determining a frequency division value according to the first audio signal and the second audio signal; and processing the first audio signal and the second audio signal according to the frequency division value to obtain an audio output signal of the electronic device. An electronic device and a computer readable storage medium are also disclosed, which achieves the effect of improving the quality of audio signals collected by the electronic device.

Abstract: An audio signal processing method including the following steps: acquiring a bone conduction audio signal collected by a bone conduction vibration pickup device; acquiring a low frequency transfer function which matches the bone conduction audio signal and a high frequency transfer function corresponding to the low frequency transfer function, wherein the low frequency transfer function and the high frequency transfer function are corresponding transfer functions between the bone conduction audio signal and an air conduction audio signal which correspond to the same voice; and performing frequency domain extension on the bone conduction audio signal on the basis of the low frequency transfer function and the high frequency transfer function, and taking the extended initial audio as output audio. The effect of improving the integrity pf a voice signal collected by a terminal device is achieved.

Abstract: The present invention relates to a sweetener liquid for preventing and relieving intestinal sugar alcohol intolerance. The sweetener liquid per 100ml includes 0.01 to 0.04 g of low-esterification pectin, 0.01 g to 0.1 g of ?-carrageenan, 0.01 g to 0.3 g of locust bean gum, 30 g to 60 g of xylitol, 5 g to 15 g of maltitol and 1 g to 10 g of sorbitol and remaining water; the low-esterification pectin is a pectin concentrate including, based on parts by weight, 15 parts of calcium citrate, 60 parts of low-molecular-weight pectin, 85 parts of ethylene glycol, 5 parts of carboxymethyl cellulose sodium and 30 parts of sodium citrate; the low-molecular-weight pectin includes a low-sugar fruit juice and a lemon juice; the sweetener liquid has a pH of 5-6.5 and a viscosity of 0.1 to 25 mPa•S. The present invention further provides a method of preparing a sweetener liquid and an application thereof.

Abstract: A signal processing method and device of a MEMS microphone and a MEMS microphone are disclosed. The method comprises: acquiring a first electrical signal obtained by converting a received optical signal by an optical sensor disposed near a sound hole of the MEMS microphone; acquiring a second electrical signal output by the MEMS microphone; and judging that the second electrical signal is an interference signal when within a substantially overlapping time range, the first electrical signal acquired reaches a preset first threshold value and the second electrical signal acquired meets a preset condition.

Abstract: The invention relates to a method for treating a disease of immune dysregulation or altering an immune response or both in a mammal Such methods include administering to the mammal a therapeutically effective amount of a modulating agent or subjecting the mammal to a modulating process, wherein the modulating agent or process alters the expression or activity of a gene target associated with a sensitive response or a resistant response to an inflammatory stimulus.

Abstract: The present disclosure relates to a method for calculating a tolerated dose of a human body to sugar alcohol and functional sugar.