Speech scoring method and device implemented through dynamically normalizing digital characteristics

A technology of digital features and dynamic features, applied in speech analysis, instruments, etc., can solve the problems of not being objective enough, and achieve the effects of convenient use, simple device configuration, and low cost

Inactive Publication Date: 2013-12-25
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, it is not objective enough to use commonly used static features such as volume, energy, and frequency deviation to score

Method used

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  • Speech scoring method and device implemented through dynamically normalizing digital characteristics
  • Speech scoring method and device implemented through dynamically normalizing digital characteristics
  • Speech scoring method and device implemented through dynamically normalizing digital characteristics

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Embodiment Construction

[0053] The implementation of the present invention will be further described below in conjunction with the accompanying drawings, but the implementation and protection of the present invention are not limited thereto.

[0054] The functional block diagram of the speech scoring device of the dynamic normalized digital feature in this embodiment is as follows image 3 As shown, the target sound needs to be digitized and framed before entering the framing module, so it needs to go through the digitization module and the framing module first. The original sound is directly input to the calculation module. The normalized dynamic features are extracted respectively in the calculation module of the original sound and the target sound. These normalized dynamic features are input to the comparison module for comparison, and the final results are output to the display module.

[0055] A hardware example of the above device is Figure 4 shown. After the user selects the sound signal ...

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Abstract

The invention discloses a speech scoring method and a speech scoring device implemented through dynamically normalizing digital characteristics. The scoring method comprises the following steps of: after carrying out digitization on a target speech, carrying out framing on the target speech; extracting dynamic characteristics of an original speech and the target speech so as to obtain multiple sets of dynamic characteristic sequences, and carrying out normalized operation on the sequences so as to obtain normalized dynamic characteristics; and calculating the similarity of each formant of the original speech and the target speech, calculating an error between the original speech and the target speech, judging an integral error according to the error of each formant, and carrying out scoring according to the integral error. The device comprises a digitizing module, a framing module, a calculation module, a comparison module and a display module which are sequentially connected in a signal connection mode. The device disclosed by the invention is simple in structure, and convenient to install; and from the point of view of frequency domains, the device extracts the dynamic characteristics of normalized formants of the original speech and the target speech and then carries out speed scoring so as to eliminate the shortcomings caused by that the existing scoring system carries out scoring by adopting static characteristics, therefore, scoring results are more objective.

Description

technical field [0001] The invention relates to sound signal processing, in particular to a method and a device for scoring follow-up or imitated speech by using dynamic normalized digital features. Background technique [0002] Speech scoring systems have many applications in real life. For example, some KTVs will be equipped with a scoring system, which will give users a score when the user finishes singing. No matter what kind of application it is, basically the user's signal is input into the system and compared with the original sound, and the similarity of the two speech signals is judged according to a certain criterion, and the user is given a score. [0003] There are many judgment criteria in practical applications. Currently common comparison criteria include volume-based methods (such as CN 102110435A), energy-based methods, and tone-based methods. The volume-based method collects the analog signal of the target sound and converts the analog signal into a digi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10L25/15G10L25/69G10L25/90
Inventor 宁更新林广超韦岗
Owner SOUTH CHINA UNIV OF TECH
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