pitch contour 音高升降曲线 ; 基频轨迹
equal pitch contour 等高曲线
pitch contour features 基音轮廓特征
extended pitch contour 扩展基音周期曲线
pitch contour extraction 基音轮廓提取
Pitch detection and pitch contour 基音检测和基音轨迹
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。
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