Audio filtering method, audio filtering device and wearable device

An audio filtering and wearable device technology, applied in speech analysis, instruments, etc., can solve problems affecting the recording effect of audio files, etc., to achieve the effect of improving audio quality, saving hardware costs, and removing noise.

Active Publication Date: 2019-07-16
上海惠芽信息技术有限公司
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Problems solved by technology

However, in the process of recording, it will inevitably be disturbed by the external environment or noise on the electronic circuit, which will affect the recording effect of the audio file

Method used

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  • Audio filtering method, audio filtering device and wearable device
  • Audio filtering method, audio filtering device and wearable device
  • Audio filtering method, audio filtering device and wearable device

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Embodiment Construction

[0059] The advantages of the present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

[0060] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0061] The terminology used in the present disclosure is for the purpose of describing particular embodiments only, and is not intended to limit the present disclosure. As used in this disclosure and the appended claims, the singular f...

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Abstract

The invention provides an audio filtering method, an audio filtering device and a wearable device. The audio filtering method is used for processing an original audio file recorded by the wearable device. The audio filtering method comprises the following steps: S101, carrying out fast Fourier transform on the original audio file, so that spectral characteristic data is obtained; S102, removing spectral characteristics corresponding to infrasound frequency and ultrasonic frequency from the spectral characteristic data; S103, determining an effective audio signal band, removing the spectral characteristics of the frequency band, except the effective audio signal band, in the spectral characteristic data, thus obtaining the spectral characteristic data with noise removed; and S104, carryingout Fourier inverse transform on the spectral characteristic data with noise removed, thus obtaining an audio file after filtering. After the technical scheme is implemented, the filtering processingis carried out on the original recording file on the wearable device, then the noise is removed, and thus the tone quality effect of the audio is promoted.

Description

technical field [0001] The present invention relates to the technical field of audio processing, in particular to an audio filtering method, an audio filtering device and a wearable device, which are used to process original audio files recorded by the wearable device. Background technique [0002] Wearable devices include smart watches, wearable phones, smart bracelets, smart earphones and other electronic devices that can be worn on the human body, and can realize various functions serving the human body. Most wearable devices have human-computer interaction functions, such as recording and recording human voices. However, in the process of recording, it is inevitable to be disturbed by external environment or noise on the electronic circuit, which will affect the recording effect of the audio file. [0003] Therefore, it is necessary to filter the recorded original audio file on the wearable device to reduce the impact of noise on the recording effect. Contents of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L21/0208G10L21/0232G10L25/18G10L25/45
CPCG10L21/0208G10L21/0232G10L25/18G10L25/45
Inventor 章军
Owner 上海惠芽信息技术有限公司
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