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Real-time audio-driven virtual character mouth shape synchronous control method

A virtual character, audio-driven technology, applied in the field of virtual character gesture control, can solve the problem of not being able to obtain the phoneme sequence corresponding to the voice synchronously, and achieve the effects of saving communication bandwidth, improving user experience, and reducing system complexity

Active Publication Date: 2020-04-28
大连即时智能科技有限公司
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0010] Therefore, in order to solve the above-mentioned situation where the phoneme sequence corresponding to the speech cannot be obtained synchronously, there is an urgent need for a method that can recognize the mouth sequence from the audio and use the mouth sequence to synchronously drive the mouth shape changes of the avatar

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  • Real-time audio-driven virtual character mouth shape synchronous control method
  • Real-time audio-driven virtual character mouth shape synchronous control method
  • Real-time audio-driven virtual character mouth shape synchronous control method

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Embodiment Construction

[0034] Embodiments of the present invention will be described below with reference to the drawings, but it should be realized that the invention is not limited to the described embodiments and that various modifications of the invention are possible without departing from the basic idea. The scope of the invention is therefore to be determined only by the appended claims.

[0035] Such as figure 1 As shown, a real-time audio-driven virtual character lip synchronization control method provided by the present invention includes the following steps:

[0036] A step of identifying viseme probabilities from a real-time speech stream;

[0037] a step of filtering the viseme probabilities;

[0038] A step of converting the sampling rate of the viseme probability into the same sampling rate as the rendering frame rate of the avatar;

[0039] A step of converting the viseme probabilities into a standard lip configuration and performing lip rendering.

[0040] Such as figure 2 As ...

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Abstract

The invention belongs to the field of virtual character posture control, and particularly relates to a real-time audio-driven virtual character mouth shape synchronous control method. The method comprises the following steps: a step of identifying the opinion probability from a real-time voice stream, a step of filtering the opinion probability, converting the sampling rate of the pixel probability into a sampling rate which is the same as a rendering frame rate of the virtual character, converting the visual element probability into standard mouth shape configuration and carrying out mouth shape rendering. According to the method, the requirement for synchronously transmitting phoneme sequence or mouth shape sequence information during audio stream transmission can be avoided, the systemcomplexity, the coupling degree and the implementation difficulty can be remarkably reduced, and the method is suitable for various application scenes for rendering virtual characters on display equipment.

Description

technical field [0001] The invention belongs to the field of posture control of a virtual character, and in particular relates to a method for synchronously controlling the mouth shape of a virtual character driven by real-time audio. Background technique [0002] Virtual character modeling and rendering technology is widely used in industries such as animation, games and movies. Enabling virtual characters to have natural, smooth and voice-synchronized mouth movements is the key to improving user experience. In a real-time system, it is necessary to synchronously play the audio acquired in real time in the form of a stream, and the avatar image rendered synchronously. During this process, the synchronization between the audio and the character's mouth shape needs to be ensured. [0003] Its application scenarios include: [0004] 1. Real-time audio is the voice generated by the speech synthesizer [0005] 1.1. The phoneme sequence corresponding to the speech can be obtai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L21/10G10L21/18G10L25/57G10L15/02H04N21/43
CPCG10L15/02G10L21/10G10L21/18G10L25/57G10L2015/025G10L2021/105H04N21/4307
Inventor 朱风云陈博
Owner 大连即时智能科技有限公司
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