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Audio coding method and associated device

一种音频编码、音频编码器的技术，应用在音频编码领域，能够解决编码运算复杂度高、音频编码开销大等问题

Active Publication Date: 2017-12-08
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of closed-loop mode selection is that the complexity of the encoding operation is relatively high (because each sub-encoder is used to encode the current input audio frame once), which in turn makes the overhead of actual audio encoding larger

Method used

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  • Audio coding method and associated device
  • Audio coding method and associated device
  • Audio coding method and associated device

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Experimental program
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Embodiment Construction

[0131] Embodiments of the present invention provide an audio coding method and a related device, in order to reduce audio coding overhead.

[0132] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part 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 making creative efforts shall fall within the protection scope of the present invention.

[0133] Each will be described in detail below.

[0134] The terms "first", "second", "third" and "fourth" in the specification and claims of the present invention and the above drawings are us...

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Abstract

The embodiment of the invention provides an audio coding method and an associated device. The audio coding method includes the following steps that the reference linear predictive efficiency of a current audio frame is estimated; an audio coding mode matched with the reference linear predictive efficiency of the current audio frame is determined; and audio coding is conducted on the current audio frame according to the audio coding mode matched with the reference linear predictive efficiency of the current audio frame. According to the technical scheme, the audio coding method and the associated device are advantageous to reducing the overhead of audio coding.

Description

technical field [0001] The present invention relates to audio coding technology, in particular to an audio coding method and a related device. Background technique [0002] For a long period of time in the past, the encoding of speech signals and the encoding of non-speech signals (such as music) were relatively independent, that is, the encoding of speech signals was realized by a dedicated speech encoder, while the encoding of non-speech signals was performed by a dedicated non-speech coder (wherein, the non-speech coder can also be referred to as a general audio coder). [0003] Among them, speech coders are generally not used to encode non-speech signals, and non-speech coders are generally not used to encode speech signals. This is not only because speech coding and non-speech signal coding are relatively independent in coding theory, but also because of this The two signals are usually relatively independent in practical applications. For example, in the voice commun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L19/04G10L19/18
CPCG10L19/04G10L19/18G10L19/02G10L19/20H03M7/30G10L19/12G10L19/22
Inventor 王喆
Owner HUAWEI TECH CO LTD