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Method for testing silent frame

A silent frame and speech frame technology, applied in speech analysis, instruments, digital transmission systems, etc., can solve problems such as inaccurate detection and achieve the effect of improving accuracy and precision

Active Publication Date: 2008-07-02
TENCENT TECH (SHENZHEN) CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0011] In view of this, the main purpose of the present invention is to provide a method for detecting silent frames, to eliminate the problem of inaccurate detection due to the use of the above-mentioned silent threshold constants for detecting silent frames.

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  • Method for testing silent frame

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Embodiment Construction

[0049] The present invention is a method for detecting silent frames. The method sets a background noise energy value variable, and judges whether the background noise energy value variable needs to be changed according to the minimum energy of sampling points in the currently obtained data frame, and changes it when necessary. , and then use this background noise variable for silent frame detection. Since the present invention adopts the variable of background noise energy value and changes the value of the variable in real time according to the current needs, it can adapt to the current environment of silent frame detection and the needs of equipment, thereby making silent frame detection more accurate.

[0050] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0051] see figure 1, realizing the present invention needs the following steps:

[0052] Step 101: Divide the current data frame into data subframes;

[0053] ...

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Abstract

The invention discloses a method for detecting sound eliminating frames, setting a background noise energy variant, judging if the variant needs to be changed according to the minimum energy of the sampling locations in the current obtained data frame and making corresponding regulation on the condition of needing to change, then using the variant to realize detection of sound eliminating frames. Because the invention adopts the background noise energy variant and real-time changes the value of the variant according to the current need, it can adapt to the current environment and equipment requirements of the sound eliminating frame detection, thus making the sound eliminating frame detection more accurate.

Description

technical field [0001] The invention relates to the technical field of voice communication, in particular to a method for detecting silent frames. Background technique [0002] At present, end-to-end voice communication technology is very common. One party to communicate obtains voice data, encode and package the voice data, and send it to the other party through the network, and the other party unpacks and decodes the received encapsulated data. After processing, it is played to realize end-to-end voice communication. [0003] In the actual communication process, any one of the communication parties must be in a state of only listening to the voice of the other party without speaking for a considerable period of time. The communicating party in this state is called a mute state. For the communicating party in the mute state, because it only receives the voice of the other party and does not speak itself, it currently does not get voice data from the caller, but can only ge...

Claims

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Application Information

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IPC IPC(8): G10L11/02G10L11/00H04L12/00G10L25/84
Inventor 王麒
Owner TENCENT TECH (SHENZHEN) CO LTD
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