Speech spectrum segmentation based singing evaluating system

A spectrum and evaluation technology, applied in speech analysis, speech recognition, instruments, etc., can solve the problems of low accuracy of standard fundamental frequency and test fundamental frequency, unsatisfactory scoring effect, and insufficient use of singing data, etc., to achieve The effect of improving evaluation performance and improving accuracy

Active Publication Date: 2010-11-24
IFLYTEK CO LTD
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Problems solved by technology

However, because this algorithm ignores the lyrics information in the singing data and only considers the similarity of the fundamental frequency, it does not make full use of the information of the singing data, so that the accuracy of the alignment of the standard fundamental frequency and the test fundamental frequency is not high, resulting in scoring less than ideal

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  • Speech spectrum segmentation based singing evaluating system
  • Speech spectrum segmentation based singing evaluating system
  • Speech spectrum segmentation based singing evaluating system

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Embodiment Construction

[0027] Combine below Figure 1~3 The realization process of the present invention is described in detail:

[0028] a), spectral model training

[0029] Step 101: Select existing representative popular songs and folk songs as recorded songs, and the original singers of the songs are evenly distributed in terms of age and gender, so as to facilitate the production of a comprehensive database.

[0030] Step 102: Select male and female recorders with a balanced ratio. The recorders are required to be more proficient in the songs to be recorded, and the age distribution is mainly teenagers and middle-aged.

[0031] There are multiple implementation schemes for the teenagers and middle-aged people. For example, teenagers and middle-aged recorders account for 60-80% of all recorders.

[0032] Step 103: The recording is made by wearing earphones, and the recorder is required to sing along with the accompaniment and the rhythm shown in the libretto, so as to record singing data of pu...

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Abstract

The invention relates to a speech spectrum segmentation based singing evaluating system. In the system, a speed spectrum model is trained, and a song resource library is produced; then, boundary of each lyric can be determined by using a speech spectrum model decoding mode according to singing data to be evaluated and the corresponding lyric content; and finally, scores of pitch and rhythm of the data to be evaluated can be calculated according to the acquired speech spectrum segmentation result, and a total score can be provided. The system trains the speech spectrum model which is completely matched with the style of the data to be evaluated by producing the overall singing database to accurately locate the position of each lyric in the data so as to determine the position of each tone, so that the accuracy of standard fundamental frequency and testing fundamental frequency on time alignment can be greatly improved, and the evaluating performance of the singing evaluating system can be finally improved.

Description

technical field [0001] The invention relates to a voice signal processing system in the field of singing, in particular to a singing evaluation system based on spectrum segmentation. Background technique [0002] At present, there are mainly the following technical solutions ranging from simple to complex in the automatic singing evaluation system: [0003] 1) Only examine the user's pronunciation time and volume: By comparing the energy of the test data frame with the energy of the original singing data frame, the degree of consistency obtained by the comparison is quantified into a scoring score, such as the patent No. 9610613.4 of the invention patent "Karaoke Scoring The evaluation method described in "Method and System". [0004] This method only judges the quality of singing by examining the volume of the user and the volume of the original singer, instead of analyzing the pitch and rhythm of the user's singing to reflect the singing level. The scoring criteria are in...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L15/06G10L15/14G10L15/08G10L15/02G10H1/36
Inventor 魏思蒋成林胡国平刘丹胡郁刘庆峰
Owner IFLYTEK CO LTD
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