Title:
ALGORITHM-BASED AUDIO OPTIMIZATION METHOD, INTELLIGENT TERMINAL AND STORAGE DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/000961
Kind Code:
A1
Abstract:
An algorithm-based audio optimization method, an intelligent terminal and a storage device, the method comprising: converting an original audio file in a time domain into an audio file in a frequency domain by means of Fourier transform in advance (S100); extracting the frequency range and amplitude information of an audio signal and matching the same with frequency ranges and amplitude information of a plurality of different types of existing audio test standard sound sources to determine the type of the audio signal (S200); and matching a corresponding frequency mapping function by means of a function library for transform to obtain a processed audio file according to the type of the audio signal, and obtaining an optimized audio file by means of inverse Fourier transform (S300). With the present invention, a similar type of sound source is searched for by comparing and matching original audio with a standard sound source, and then a frequency mapping function for transform is determined, the frequency is mapped, the relevant frequency is compressed or expanded, and automatic tuning is carried out to achieve the effect of improving the sound quality.
Inventors:
CHEN XUESI (CN)
Application Number:
PCT/CN2018/076101
Publication Date:
January 03, 2019
Filing Date:
February 10, 2018
Export Citation:
Assignee:
SHENZHEN CHUANGWEI RGB ELECTRONIC CO LTD (CN)
International Classes:
G10L21/007; G10L21/0216; G10L21/0232
Domestic Patent References:
| WO2015144243A1 | 2015-10-01 |
Foreign References:
| CN107331403A | 2017-11-07 | |||
| CN105390144A | 2016-03-09 | |||
| CN101667814A | 2010-03-10 | |||
| CN103177727A | 2013-06-26 | |||
| CN103473005A | 2013-12-25 | |||
| CN104078050A | 2014-10-01 |
Other References:
See also references of EP 3471097A4
Attorney, Agent or Firm:
JOHNSON INTELLECTUAL PROPERTY AGENCY(SHENZHEN) (CN)
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