Method and device for audio signal processing, and storage medium

Patent metadata

Field	Value
Publication number	US-11289110-B2
Application number	US-201916703907-A
Country	US
Kind code	B2
Filing date	Dec 5, 2019
Priority date	Dec 31, 2018
Publication date	Mar 29, 2022
Grant date	Mar 29, 2022

Abstract

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.

First claim

What is claimed is:

1. A method for audio signal processing, comprising 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,
wherein the at least one audio feature comprises at least one of a beat duration, a note ratio, an audio intensity, an audio roughness and an intensity peak of the audio signal; the at least one vibration feature comprises at least one of a vibration intensity, a vibration frequency and a vibration waveform, wherein the beat duration is inversely proportional to the vibration frequency and/or inversely proportional to the vibration intensity and/or directly proportional to the vibration wavelength; the note ratio is directly proportional to the vibration frequency and/or directly proportional to the vibration intensity and/or inversely proportional to the vibration wavelength; the audio intensity is directly proportional to the vibration frequency and/or directly proportional to the vibration intensity and/or inversely proportional to the vibration wavelength; the audio roughness is directly proportional to the vibration frequency and/or directly proportional to the vibration intensity and/or inversely proportional to the vibration wavelength; the intensity peak is inversely proportional to the vibration frequency and/or directly proportional to the vibration intensity and/or directly proportional to the vibration wavelength,
wherein the step of parsing the audio signal to obtain at least one audio feature comprises:
dividing the audio signal into a plurality of segments, and then respectively calculating a speed, a number of notes, and a spectral relationship of each of the plurality of segments of the audio signal;
determining a beat duration of each of the plurality of segments of the audio signal according to the speed of each of the plurality of segments of the audio signal; and/or,
determining a note ratio of each of the plurality of segments of the audio signal according to the number of notes of each of the plurality of segments of the audio signal and the duration of each of the plurality of segments of the audio signal; and/or,
determining an audio intensity of each of the plurality of segments of the audio signal according to the spectral relationship of each of the plurality of segments of the audio signal; and/or,
determining an audio roughness of each of the plurality of segments of the audio signal according to the spectral relationship of each of the plurality of segments of the audio signal; and/or,
determining the intensity peak of each of the plurality of segments of the audio signal according to a total number of frames of each of the plurality of segments of the audio signal and a ratio of the intensity peak of each of the plurality of segments of the audio signal.

2. The method for audio signal processing as described in claim 1 , wherein the step of determining at least one vibration feature corresponding to the at least one audio feature comprises: determining the at least one vibration feature corresponding to the at least one audio feature of the audio signal according to a preset correspondence between the at least one audio feature and the at least one vibration feature.

3. The method for audio signal processing as described in claim 1 , comprising after the step of generating the vibration signal corresponding to the audio signal according to the at least one vibration feature:
obtaining an inputted motor parameter;
obtaining and outputting a vibration waveform signal according to the motor parameter and the vibration signal.

4. An electronic device, comprising:
at least one processor; and
a memory communicatively connected with the at least one processor;
wherein the memory stores instructions executable by the at least one processor, the instructions, when being executed by the at least one processor, cause the at least one processor to perform the method for audio signal processing as described in claim 1 .

5. A non-transitory computer readable storage medium storing a computer program, wherein the computer program, when being executed by a processor, cause the processor to implement the method for audio signal processing as described in claim 1 .

Assignees

• Aac Technologies Pte Ltd

Inventors

• Zheng Yajun
• Deng Hanlin
• Lu Xiang
• Zhang Yulei

Classifications

• G06F3/167

  Audio in a user interface, e.g. using voice commands for navigating, audio feedback · CPC title

• G10H3/24

  incorporating feedback means, e.g. acoustic · CPC title

• G06F3/0488

  using a touch-screen or digitiser, e.g. input of commands through traced gestures · CPC title

• G10H2210/076

  for extraction of timing, tempo; Beat detection · CPC title

• G10L21/18

  Details of the transformation process · CPC title