普通话播音员发音共鸣效果的声学特性分析

On Acoustic Resonance Efficiency of Broadcasters in Speech Production

为研究普通话播音员的发音共鸣特性及其与普通人的差异,本文采集了32名播音员和37名普通人发音时的语音信号和喉部皮肤振动信号,测量了基频f0、等效声压级SPLeq和皮肤振动幅值SAL等参数,并计算了共鸣放大比例系数。结果表明,无论是自然还是大声说话状态下,男女播音员均可以用较小的嗓音能量,产生更大的音量输出,说明播音员具有更好的发音共鸣放大效果。其放大增益比普通人约高3dB,相当于两个普通人同时说话音量叠加的效果。

In order to analyze the pronunciation resonance characteristics of Putonghua broadcasters and their differences with ordinary people,the study recruited 32 broadcasting students as experimental group and thirty seven college students as control group to perform the same speech task(in natural and loud modes).Acoustic signals and skin vibration signals were collected,and f0,SPLeq and SAL were measured.The results show that both male and female broadcasters use less voice energy to produce greater volume output,indicating that broadcasters have better pronunciation resonance amplification effect.Its amplification gain is about 3 dB higher than that of ordinary people,which is equivalent to the superposition effect of two ordinary people talking at the same time.