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Sound particle synthesis method and device

A synthesis method and sound technology, applied in speech synthesis, speech analysis, instruments, etc., can solve problems such as insufficient continuous and natural synthesized sounds, mixed popping sounds, etc.

Pending Publication Date: 2020-10-20
WUHAN UNIV OF TECH +1
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application provides a method and device for synthesizing sound particles, which solves the phenomenon of "stepping" of the sound particles in the splicing in the prior art, which leads to the mixing of "popping sounds" in the synthesized audio sound, making the synthesized sound not continuous enough natural question

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  • Sound particle synthesis method and device

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Embodiment Construction

[0061] This embodiment provides a sound particle synthesis method, comprising the following steps:

[0062] Step 1. Collect original sound samples.

[0063] Specifically, a target vehicle type is selected, and an audio signal corresponding to the target vehicle type is recorded as the original sound sample. Wherein, the audio signal includes but not limited to engine sound information.

[0064] Step 2. Construct a sound particle sample library according to the original sound sample, and add the index of the sound particle.

[0065] Specifically, according to the original sound samples, the interception mark points are located and the sound particles are extracted to construct the sound particle sample library. Wherein, the first and last phases of the sound particles in the sound particle sample library are both 0.

[0066] One implementation of adding the index of the sound particle is: extracting the sound particle fragments in the sound particle sample library, and arran...

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Abstract

The invention belongs to the technical field of digital signal processing. The invention discloses a sound particle synthesis method and device. The method comprises the steps of collecting original sound samples; constructing a sound particle sample library according to the original sound samples, adding indexes of sound particles, reading the sound particles in the sound particle sample libraryaccording to the vehicle condition input information and the indexes of the sound particles, constructing transition audios according to the sound particles read by the indexes, and splicing the adjacent sound particles through the transition audios to synthesize to obtain target sound samples; the device comprises an acquisition unit, a sound particle sample library construction unit, an index unit, a sound particle reading unit, a transition audio construction unit and a target sound sample synthesis unit. The problem that in the prior art, sound particles can generate a step phenomenon at the splicing position, so that the synthesized audio sound is doped with the popping sound, and the synthesized sound is not continuous or natural enough is solved, the coherence of the synthesized sound can be guaranteed, and the requirement for the target sound quality is met.

Description

technical field [0001] The invention relates to the technical field of digital signal processing, in particular to a sound particle synthesis method and device. Background technique [0002] The automobile industry has entered a stable period of connotative development. When the NVH (Noise, Vibration, Harshness, noise, vibration, and harshness) of various automobile systems has been improved, people pay more attention to the impact of noise on the subjective feelings of passengers. , which is highlighted as the transformation of "from silence to sound quality". ASD (active sound design, active sound design) is a means to meet the "sound interest" experience of drivers and passengers and improve the target requirements of sound quality in the car through active sound generation. At present, the research on ASD technology is mainly carried out from three parts: sound design, sound synthesis algorithm and active sound control system. [0003] Among them, the sound synthesis a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L13/047G10L13/04
CPCG10L13/047Y02T90/00
Inventor 卢炽华谢丽萍刘惟伊刘志恩魏浩钦刘浩孙唯张光
Owner WUHAN UNIV OF TECH
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