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Voice activity detection method and device, and computer readable storage medium

A detection method and active technology, applied in voice analysis, instruments, etc., can solve the problems of misjudging the input signal as a voice signal and reducing the accuracy of judgment, and achieve the effect of increasing memory usage and improving accuracy

Active Publication Date: 2019-12-10
出门问问创新科技有限公司 +1
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Problems solved by technology

[0003] As the size of data processing equipment becomes smaller and smaller, in small-sized devices, due to the limited system memory and computing resources, voice activity detection is usually designed based on energy and signal-to-noise ratio, but due to the limitations of memory and computing resources, It is easy to misjudge the input signal as a speech signal, resulting in a decrease in the accuracy of judgment

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  • Voice activity detection method and device, and computer readable storage medium
  • Voice activity detection method and device, and computer readable storage medium
  • Voice activity detection method and device, and computer readable storage medium

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Embodiment Construction

[0024] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0025] figure 1 It is a schematic diagram of an implementation flow of a voice activity detection method according to an embodiment of the present invention.

[0026] see figure 1 On the one hand, the embodiments of the present invention provide a voice activity detection method, the method includes: step 101, acquiring a sound signal; step...

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Abstract

The invention discloses a voice activity detection method and device, and a computer readable storage medium. The method comprises the following steps of acquiring a sound signal; carrying out signalenergy estimation on the sound signal to obtain an energy estimation value of the sound signal; judging whether the energy estimation value of the sound signal exceeds an energy threshold value or notto obtain a judgment result; and when the judgment result is that the energy estimation value of the sound signal does not exceed the energy threshold value, carrying out voice activity detection onthe sound signal to obtain a voice activity detection result. According to the method provided by the embodiment of the invention, the accuracy of voice activity detection in a noisy environment can be improved on the premise of not increasing the memory occupation and operational consumption.

Description

technical field [0001] The present invention relates to the technical field of voice processing, in particular to a voice activity detection method, device and computer-readable storage medium. Background technique [0002] Voice Activity Detection, VAD (Voice Activity Detection), is a method of detecting whether an input signal is voice. It can be realized in many ways based on energy, zero-crossing rate, signal-to-noise ratio, spectral entropy, neural network, etc. It is usually used to control the signal processing flow: if a voice is detected, it will enter the subsequent processing flow; if non-voice is detected, it will not enter the subsequent processing flow. In this way, computing resources occupied by the entire signal processing flow can be reduced. [0003] As the size of data processing equipment becomes smaller and smaller, in small-sized devices, due to the limited system memory and computing resources, voice activity detection is usually designed based on e...

Claims

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Application Information

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IPC IPC(8): G10L25/51G10L25/78G10L25/87G10L21/0216
CPCG10L21/0216G10L25/51G10L25/78G10L25/87
Inventor 付聪李勤
Owner 出门问问创新科技有限公司
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