Aac Technologies Pte. Ltd.

Hanlin Deng

Xiang Lu

Zheng Xiang

Liang Jiang

Yajun Zheng

Tao Li

Xiuyue Wang

Yulei Zhang

Wensheng Xu

A method and device for audio signal processing is provided. The method includes steps of: obtaining an inputted audio signal; parsing the audio signal to obtain at least one audio feature; determining at least one vibration feature corresponding to the at least one audio feature; and generating a vibration signal corresponding to the audio signal according to the at least one vibration feature. The inputted audio signal is automatically converted into a vibration signal by the vibration feature corresponding to the audio feature of the inputted audio signal, which can avoid errors caused by manual operation and make the vibration signal possess high versatility.

Method and device for audio signal processing, and storage medium

The present disclosure provides a method for detecting a bandwidth of a linear vibration motor, including a linear vibration motor which comprises a housing and a motor vibrator. The method includes the following steps: step S: setting a target displacement level of the linear vibration motor; step S: measuring a displacement frequency response curve of the motor vibrator with reference to the target displacement level; step S: comparing the displacement frequency response curve obtained in step Swith a preset standard target displacement frequency response curve, determining whether the displacement frequency response curve is qualified, and if it is qualified, entering step S; step S: measuring a bandwidth of the linear vibration motor.

Method for detecting bandwidth of linear vibration motor

A method of generating motor driving signal includes: obtaining acceleration segment signal for driving motor to start vibrating, constant segment signal for achieving low-frequency vibration tactile effect of the motor, and attenuating segment signal for decreasing vibration quantity of the motor in low frequency manner, frequency of constant segment signal and of attenuating segment signal being smaller than frequency of acceleration segment signal; splicing the acceleration segment signal with the constant segment signal, and reserving idle period with no signal output therebetween to obtain first motor driving signal; adjusting parameter of constant segment signal of first motor driving signal according to vibration feeling requirement, and splicing attenuating segment signal after the adjusted first motor driving signal to obtain second motor driving signal; and adjusting parameter of attenuating segment signal of second motor driving signal, and determining second motor driving signal with highest braking efficiency as final motor driving signal.

Method of generating motor driving signal, electronic device and storage medium

The present disclosure relates to a motor control system and method based on current feedback signal. The motor control system includes a control apparatus, a linear motor, and a current feedback apparatus, where an output end of the control apparatus is connected to the linear motor for calculating a displacement error of a previous moment to obtain a control output value of a current moment, and converting the control output value into a voltage signal for transmission to the linear motor; the linear motor is configured to vibrate according to the voltage signal input by the control apparatus; and the current feedback apparatus is connected to the linear motor, and is configured to: convert a measured current value of the linear motor into an actual displacement value of the current moment, and feed back the actual displacement value to an input end of the control apparatus.

Motor control system and method based on current feedback signal

The present disclosure provides a method for measuring bandwidth of linear motor, including the following steps: step S: setting a frequency distribution of an excitation signal; step S: with reference to a target displacement level, measuring a steady state displacement peak of a motor vibrator at each frequency point of the excitation signal, and obtaining a frequency response curve with reference to the target displacement level; step S: according to the frequency response curve obtained in step S, determining an upper frequency limit and a lower frequency limit with reference to the target displacement level, and obtaining a bandwidth of the linear motor by calculating a difference between the upper frequency limit and the lower frequency limit.

Method for measuring bandwidth of linear motor

The present disclosure relates to the technical field of electronic devices, and discloses a method and an apparatus for controlling motor vibration. The method includes: obtaining an input signal based on an expected motor vibration curve, inputting a digital signal sequence of the input signal to an equalizer, and obtaining an output signal after processing by the equalizer, and inputting the output signal to a motor to control vibration of the motor, where the equalizer is a digital filter constructed based on a damping factor &#x3b6; and a resonance frequency &#x3c9;of the motor, and a preset system sampling frequency f, a preset damping factor &#x3b6;, and a preset cut-off frequency &#x3c9;. The method and apparatus provided in embodiments of the present disclosure have an advantage that an actual vibration effect of the motor can be consistent with an expected motor vibration curve.

Method and apparatus for controlling motor vibration

A method for generating a motor drive signal is disclosed, which includes: obtaining a non-resonance frequency sine signal, and inputting the non-resonance frequency sine signal into a first system; processing, by the first system, the non-resonance frequency sine signal to obtain a correction input signal; inputting the correction input signal into a second system, and processing, by the second system, the correction input signal to obtain an output signal in the same mathematical form as the non-resonance frequency sine signal, wherein the first system is an inverse system of the second system; and using the output signal of the second system as the motor drive signal. The present disclosure further provides an apparatus for generating a motor drive signal. The method and apparatus for generating a motor drive signal enable the motor to have a smooth output effect after being excited by the non-resonance frequency sine signal.

Method and apparatus for generating motor drive signal

Embodiments of the present disclosure relate to the technical field of electronic devices, and a method for generating a motor brake signal is disclosed. In the present disclosure, the method for generating a motor brake signal includes the following steps: S: controlling a motor by using different brake signals respectively to obtain vibration margins of the motor corresponding to the brake signals; and S: selecting, from the brake signals, a brake signal with superior performance as the motor brake signal based on the vibration margins of the motor, wherein the smaller the vibration margin of the motor is, the more superior performance the corresponding brake signal has. The present disclosure further provides an apparatus for generating a motor brake signal. The method and the apparatus for generating a motor brake signal that are provided in the present disclosure enable the motor to have a good brake effect.

Growing community of inventors

Shenzhen, China

Hanlin Deng