fundamental tone

noun

1. 基音；根音
   the tone that represents the lowest frequency of sth such as a string or bell when it vibrates

1. This model can also be used to abstract the fundamental frequency of speech and to measure the frequency of pure tone precisely.
   这一模型也可用于语音信号的基频提取和纯音频率的精密测量。
2. In this article, method of Fixed Point Frequency Analysis was used to extract Fundamental Frequency ( F0) as well as establish the normalized Liner Polynomial Tone Model.
   该文利用固定点频率分析提取基音频率（F0），建立归一化线性多项式声调模型。
3. In this paper, the figure of the fundamental frequency of tone zero is researched with normalized Autocorrelation function pitch detection algorithm ( NACFPDA) and some feature of tone zero is provided.
   利用归一化自相关函数法研究了轻声音节基频轨迹的特点，并给出了可用于识别轻声音节的一些基本声调特征。
4. The main characteristic of tone is fundamental frequency F0 and the effective approach to make use of tone information is to abstract and analyze F0 accurately.
   而体现声调的最主要的特征就是声调的基频FO，有效的利用声调信息，必须对基频FO进行准确的提取与分析。