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Voice fundamental tone frequency estimation method based on gender anticipation and multi-frequency-band parameter mapping

A pitch frequency, multi-band technology, applied in voice analysis, instruments, etc., can solve the problem of few pronunciation organ searches, and achieve the effect of reducing the amount of calculation, improving accuracy, and improving reliability

Active Publication Date: 2015-12-23
DONGGUAN FANDOU INFORMATION TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The individual differences in pitch frequency are also obvious, and different individuals have a relatively fixed frequency distribution range. In the previous pitch frequency estimation algorithms, the physiological characteristics of the vocal organs were rarely used to search the frequency range.

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  • Voice fundamental tone frequency estimation method based on gender anticipation and multi-frequency-band parameter mapping
  • Voice fundamental tone frequency estimation method based on gender anticipation and multi-frequency-band parameter mapping
  • Voice fundamental tone frequency estimation method based on gender anticipation and multi-frequency-band parameter mapping

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Embodiment Construction

[0051] The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0052] In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the meaning of the present invention. By analogy, the present invention is therefore not limited to the specific examples disclosed below.

[0053] In general, the ...

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Abstract

The invention discloses a voice fundamental tone frequency estimation method based on gender anticipation and multi-frequency-band parameter mapping and relates to the voice signal processing method technology field. The method comprises the following steps of 1) using a decision feedback mode to carry out voice fundamental tone frequency estimation and determining a gender of a speaker; 2) according to a determination result of the gender of the speaker, carrying out parameter optimization; 3) using an iterative loop mode to carry out parameter prediction and frequency revaluation on the parameter after optimization so as to obtain the voice fundamental tone frequency. The method possesses advantages that a calculated amount is small and precision is high.

Description

technical field [0001] The present invention relates to the technical field of voice signal processing methods, in particular to a voice pitch frequency estimation method based on gender prediction and multi-band parameter mapping. Background technique [0002] The pitch frequency of a speech signal is one of the most important acoustic characteristics. The traditional autocorrelation method to extract the pitch frequency of speech has the advantage of less calculation. However, due to the non-stationary characteristics of the speech signal, the accuracy of its frequency estimation is limited, especially in the high and low frequency bands, which are affected by the accuracy of framing and autocorrelation operations. [0003] From the perspective of the physiological structure of the vocal organs, the pitch frequency is directly affected by the structure of the vocal cords, and the gender difference is significant. The gender of the speaker can be judged from the statistic...

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Application Information

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IPC IPC(8): G10L25/18
Inventor 黄程韦于拾全朱晓明
Owner DONGGUAN FANDOU INFORMATION TECH CO LTD