• 基音周期语音信号重要参数之一。

    Pitch period is one of the most important parameters in speech signal.

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  • 浊音语音可以看作变化基音周期波形连接

    Voiced speech is interpreted as a concatenation of slowly evolving pitch cycle waveforms.

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  • 基音周期变换文—语转换语音转换的重要内容

    Pitch modification is an important part in text-to-speech synthesis and voice conversion.

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  • 语音信号序列可以看成基音周期整数倍延时叠加

    A vocal signal sequence is treated as that is formed by piling up pitch periods after varying integer delay time.

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  • 本文提出了一种新的检测基音周期方法:“面积函数法”。

    In this paper, we present a new method, which is entitled "the Function of Area Difference", to detect the pitch period of speech signal.

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  • 探讨语音识别硬件实现以及基音周期估值等具体问题

    And probe into the problem of how to project a speech recognition system base on the hardware, also the problem of pitch estimation.

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  • 本文提出了一种适用于速率语音编码系统基音周期量化算法

    This paper proposed a pitch quantization method for low bit-rate speech coding systems.

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  • 基音周期确定是语音处理领域中的一个尚未完全解决基本问题

    To get the pitch of a speech remains an unsolved but basic problem in the field of speech signal process.

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  • 不同的语音音调主要体现语音的基音周期共振频率差别上。

    The different pitch and the different formant frequency decide the different pitch-scale.

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  • 实验表明比较情况下,该法也精确的检测基音周期

    Through simulation experiments, it is shown that it behaves more robustly and can detect pitch more accurately at low signal-to-noise ratio.

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  • 方法帧率都限制基音周期整数倍,即基音同步算法

    The proposed method restricted the frame length and frame shift to multiples of pitch period, called pitch synchronous algorithm;

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  • MBE模型基音周期搜索算法存在运算量大,抗噪性能一般等缺点。

    The algorithm for pitch period search with MBE model is complex in calculation and low flexible.

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  • 中心削波法用来去除声道影响获得准确基音周期一种方法

    Center clipping is a method, which used to wipe off the effect of track, in order to acquire a more exact pitch period.

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  • 算法采用频域分块估计候选基音周期范围提高了算法计算速度

    The proposed algorithm adopts frequency partition to estimate the range of pitch period, improving the computational speed.

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  • 为了实现率下透明质量语音编码提出了基音周期估计算法

    A kind of robust pitch estimation algorithm is presented for parametric speech coding with transparent quality at very low bit rate.

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  • 论文此法基础上,提出了一种基于时域相关平方函数基音周期估计方法

    So the paper brings forward a method of pitch estimation in time-domain based on correlated square function.

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  • 阐述一种新的基于语音线性预测模型和经典相关函数基音周期检测算法

    In this paper, a new pitch detection method based on classical autocorrelation function is proposed.

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  • 本文详细讨论了混合激励线性预测(MELP)基音周期估计算法及其改进算法。

    This paper discusses in detail the pitch detection algorithm of Mixed Excitation Linear Prediction (MELP) and an improved algorithm.

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  • 所使用的参数:信号的短时幅度能量、一阶和二阶过零相关函数基音周期等。

    The involved parameters are short-time amplitude and energy, lst-and2nd-order zero-crossing rate, autocorrelation function and pitch period.

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  • 研究结果表明小波分析语音基音周期检测非常有效的,对语音压缩基本达到满意的程度。

    The study result shows that it is efficient to apply Wavelet Analysis on determining pitch periodicity and the experiment of applying Wavelet Analysis on speech coding basically achieves our goals.

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  • 针对语句后部变调基音频率的衰减,采用改进的自相关函数计算方法增强基音周期跟踪

    We adopt improved computation of autocorrelation function for the case of fo change in the end of sentences, and realize accurate tracking to rapidly changed pitch.

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  • 同时采用滑动方法使得基音周期不规则的不平稳语音进行基音周期估计时的误差减小

    In the same time, a sliding pitch analysis window method is used, so it can reduce the pitch detection error in non-stationary speech segments with irregular pitch.

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  • 这种算法不仅能够跟踪基音周期增强不规则脉冲基音周期估计能够鲁棒地估计陡变基音周期

    The algorithm can not only track rapidly changed pitch, and enhance pitch estimation with irregular pulse, but also make robust estimation of sharply changed pitch.

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  • 合适状态空间邻近矢量进行非线性局部分析,即使没有基音周期估计,短时预测同样建立长时相关性模型

    With an appropriate state space neighbour for the nonlinear local analysis, the short_delay predictor is also able to effectively model the long_term correlation without pitch estimation.

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  • 为了任意采样下都可以高效、准确地进行基音周期提取,提出基于归一化幅度平方和函数基音周期提取算法

    A pitch tracking algorithm was developed based on the normalized sum of the magnitude difference square function (SMDSF) for accurately estimating speech pitch at any sample rate in real time.

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  • 介绍算法设计思想实现过程给出代表性实验结果,将其结果与MBE算法检测到的基音周期进行比较

    The implementation process and the designing idea of the arithmetic were described in detail, and the representative experiment results were compared with that obtained by MBE arithmetic.

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  • 然后根据轨迹语音信号进行“基音调整”,将原始具有时变基音周期的信号转化为一个具有恒定基音周期的信号。

    Then the speech signal is pitch adjusted according to this pitch contour, where the original signal with time varying pitch period is converted to a signal of constant pitch period.

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  • 相对正常语音来说,语音公共场合噪比较低,而且没有基音周期共振明显所以耳语音增强具有一定的难度。

    The SNR in public environment of whispered speech is lower than normal speech and the former hasn't pitch period and its formants are not obvious, so whispered speech enhancement is harder.

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  • 提出方法为了理想的合成特定人的自然语音,采用变长分帧方法特定人的自然语音的四声提取基音周期序列

    For the ideal synthesis, USES a method of changing the long of frame to get pitch periods of given people natural four tones.

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  • 提出方法为了理想的合成特定人的自然语音,采用变长分帧方法特定人的自然语音的四声提取基音周期序列

    For the ideal synthesis, USES a method of changing the long of frame to get pitch periods of given people natural four tones.

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