喉科专家已能像耳科专家用听力计测定患耳的听力那样,利用声谱图对声嘶的程度进行量的客观测定。有关测定的具体方法已有不少报道,主要在于估量声谱图中的噪声成份。但这类方法多较复杂、费时间,其临床应用常受到一定限制。本文介绍一种测定谐波与噪声成份能量比值H/N的新方法,用于声嘶程度的客观估量。H为谐波部分平均波形的能量;N为噪声部分的能 Laryngologists have been able to objectively measure the extent of hoarseness using sonograms, just as the otologist uses the audiometer to measure the hearing of the affected ear. There are a lot of reports on the specific methods of measurement, mainly in measuring the noise component in the spectrogram. However, this method is more complicated, time-consuming, its clinical application often subject to certain restrictions. This article presents a new method to determine the energy ratio of harmonics to noise components, H / N, for the objective estimation of the degree of hoarseness. H is the average waveform energy of the harmonic part; N is the energy of the noise part