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Method and device for detecting audio signal according to frequency domain energy

An audio signal, frequency domain energy technology, applied in the field of communications, can solve the problem of inability to detect audio signals

Active Publication Date: 2016-02-17
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the detection of audio signals cannot be realized in the field of communication at present.

Method used

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  • Method and device for detecting audio signal according to frequency domain energy
  • Method and device for detecting audio signal according to frequency domain energy
  • Method and device for detecting audio signal according to frequency domain energy

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Embodiment Construction

[0065] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0066] see figure 1 , figure 1 It is a schematic flowchart of a method for detecting audio signals based on frequency domain energy provided by an embodiment of the present invention, as shown in figure 1 shown, including the following steps:

[0067] 101. Receive an audio signal frame.

[0068] Step 101 may be receiving an audio signal frame ...

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Abstract

An embodiment of the invention discloses a method and a device for detecting an audio signal according to frequency domain energy. The method comprising the following steps of receiving an audio signal frame; obtaining frequency domain energy distribution of the audio signal frame, wherein the frequency domain energy distribution represents an energy distribution characteristic of the audio signal frame in a frequency domain; obtaining a maximum value distribution characteristic of a frequency domain energy distribution derivative of the audio signal frame according to the frequency domain distribution of the audio signal frame; taking the audio signal frame and each frame in a preset neighborhood range of the audio signal frame as a frame set, wherein the frame set comprises frames to be detected; and detecting the frames to be detected according to a maximum value distribution characteristic of a frequency domain energy distribution derivative of the frame set. In the embodiment of the invention, audio signal detection can be realized.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for detecting audio signals according to frequency domain energy. Background technique [0002] Audio signals are very common processing or output signals in electronic equipment. In addition, with the development of electronic technology, there are more and more types of audio signals processed or output by electronic devices, such as voice signals, color ring tones, standard ring tones, abnormal ring tones, dual-tone multifrequency (DTMF) ) signal and frequency-shift keying (Frequency-shiftkeying, FSK) signal and so on. [0003] Since there are more and more types of audio signals processed or output by electronic devices, it is necessary to detect the audio signals to obtain the detection results of the audio signals, for example, to obtain the classification or characteristics of the audio signals to be detected. However, the detection of audio signals ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/24G10L25/48
CPCG10L25/21G10L21/0232G10L25/18G10L25/51H04M1/24H04M19/04
Inventor 许丽净
Owner HUAWEI TECH CO LTD
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