CN111316355A

CN111316355A - Audio noise reduction method, noise reduction device, mobile terminal and readable storage medium

Info

Publication number: CN111316355A
Application number: CN201780096531.7A
Authority: CN
Inventors: 祝俊
Original assignee: Shenzhen Transsion Communication Co Ltd
Current assignee: Shenzhen Transsion Communication Co Ltd
Priority date: 2017-11-03
Filing date: 2017-11-03
Publication date: 2020-06-19
Also published as: WO2019084886A1

Abstract

An audio noise reduction method, a noise reduction device, a mobile terminal and a computer-readable storage medium, the audio noise reduction method comprising: the mobile terminal obtains audio data input from a first interface (S10); the mobile terminal collects ambient sound data within a preset range based on a recording module (S20); the mobile terminal performs mixing and noise reduction processing on the audio data and the ambient sound data to obtain noise reduction data (S30); the mobile terminal outputs the noise reduction data to a second interface (S40). The audio noise reduction method, the noise reduction device, the mobile terminal and the computer-readable storage medium perform mixing and noise reduction on the audio data and the collected ambient sound data, use the ambient sound data as a tuning sound source, perform mixing and adjustment on the audio data, and then reduce the noise data generated during the conversion through noise reduction processing, thereby enhancing the sound quality of the original audio data and further improving the user's viewing experience.

Description

PCT国内申请，说明书已公开。PCT domestic application, the description has been published.

Claims

The audio noise reduction method is applied to a mobile terminal, a recording module is arranged in the mobile terminal, and the audio noise reduction method comprises the following steps:

the mobile terminal acquires audio data input by a first interface;

the mobile terminal collects environmental sound data in a preset range based on the recording module;

the mobile terminal carries out sound mixing and noise reduction processing on the audio data and the environmental sound data to obtain noise reduction data;

the mobile terminal outputs the noise reduction data to the second interface.
The audio denoising method of claim 1, wherein the step of the mobile terminal performing mixing denoising processing on the audio data and the ambient sound data to obtain denoising data comprises:

the mobile terminal analyzes the audio data and the environmental sound data respectively to obtain audio codes and environmental sound codes;

the mobile terminal performs audio mixing processing based on the audio coding and the environment sound coding to obtain audio mixing coding;

and the mobile terminal performs noise reduction processing on the mixed sound coding based on the environment sound coding to obtain noise reduction data.
The audio denoising method of claim 2, wherein the mobile terminal performs denoising processing on the mixed-sound encoding based on the ambient sound encoding, and the obtaining denoising data comprises:

the mobile terminal analyzes the audio mixing code and determines the noise code in the audio mixing code;

and the mobile terminal carries out filtering and noise reduction processing on the noise code based on the environment sound code to obtain noise reduction data.
The audio noise reduction method of claim 3, wherein the filtering noise reduction processing means comprises high-pass filtering, low-pass filtering, band-pass filtering, and band-stop filtering.
The audio noise reduction method of claim 1, wherein the step of obtaining noise reduction data further comprises, after:

and the mobile terminal performs low-noise adjustment on the noise reduction data.
The audio noise reduction method of claim 5, wherein the step of the mobile terminal low-noise adjusting the noise reduction data further comprises:

and the mobile terminal amplifies the data signal of the noise reduction data.
The audio noise reduction method of claim 6, wherein the first interface is a Lightning interface and the second interface is a 3.5mm interface.
The utility model provides a device of making an uproar falls, its characterized in that, mobile terminal embeds there is the recording module, the device of making an uproar falls includes:

the acquisition module is used for acquiring audio data input by the first interface;

the acquisition module is used for acquiring environmental sound data within a preset range based on the recording module;

the noise reduction module is used for carrying out sound mixing and noise reduction processing on the audio data and the environmental sound data to obtain noise reduction data;

and the output module is used for outputting the noise reduction data to the second interface.
A mobile terminal, characterized in that the mobile terminal comprises: a memory, a processor, a communication bus, and an audio noise reduction program stored on the memory,

the communication bus is used for realizing communication connection between the processor and the memory;

the processor is configured to execute the audio noise reduction program to implement the steps of the audio noise reduction method according to any of claims 1 to 7.
A computer readable storage medium, characterized in that the computer readable storage medium has stored thereon an audio noise reduction program, which when executed by a processor implements the steps of the audio noise reduction method according to any one of claims 1 to 7.