In a mandarin tone recognition system, the parameter is usually pitch contour. But the tone can also be partly characterized by pitch difference, energy and energy difference.
普通话声调识别参数除常用的基音轮廓外，基音的一阶差分、能量及能量的一阶差分等也具一定的声调特征。
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.
然后根据这一轨迹对语音信号进行“基音调整”，将原始的、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。
The variation of pitch contour is an important parameter for speech recognition and transmission.
音调变化在语音识别和语音传输中是一个重要参数。
In this thesis, the problem of Min-Nan syllable pitch contour generation is studied.
本论文研究闽南语语音合成中音节基周轨迹产生之问题。
Downstep in pitch contour of Mandarin Chinese is examined using subtly designed sentences, by controlling tone combinations.
采用设计特定声调组合的实验室语句的方法，研究了汉语普通话语调降阶的规律。
Downstep in pitch contour of Mandarin Chinese is examined using subtly designed sentences, by controlling tone combinations.
采用设计特定声调组合的实验室语句的方法，研究了汉语普通话语调降阶的规律。
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