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- According to the formant frequency of speech signal, the striations are existed in their spectrograms. 在办公室的环境里，存在冷气或电风扇运转的背景环境噪音；
- Formant frequency, bandwidth and pitch are chosen as voice character parameters while formant synthesis method is used to create converted voice. 本系统选择共振峰频率和带宽及基音周期等声音特征参数，分别使用LPC求根法和自相关法提取这些特征参数。
- The fundamental frequency F0 and formant frequencies F1,F2,F3 are increased as increasing of the SPL of speech. 元音的基频F_O和共振峰,特别是F_1、F_2,随总声级的提高而提高,在相同坐标下所绘元音三角图平移并加大;
- Results: The second formant frequencies have significant difference.Broadband sonogram and narrow sonogram show difference too. 结果：二者第2共振峰频率差别有显著意义，宽带和窄带语图显示前者优于后者。
- Research on the Difference of Twins'Voice Formant Frequency 双胞胎语音共振峰频率特性的差异性研究
- He varied the transmission frequency. 他变换了无线电传送的频率。
- A unit of frequency equal to one cycle per second. 赫兹频率的单位，等于每秒一周
- Fatal accidents have decreased in frequency over recent years. 近年来死亡事故发生的频率已经下降。
- very narrow formant frequency 特窄共振峰频率
- formant frequency 共振峰频率
- We can often correlate age with frequency of illness. 年龄的大小往往与发病率有关。
- Accidents on that highway are happening with increasing frequency. 那条高速公路上车祸发生得越来越频繁。
- speech formant frequency 共振峰频率
- Formant synthesis simulates the vocal tract through a filter. 共振峰合成使用滤波器氦发志。
- He tuned his radio to the police frequency. 他把无线电调到警方的频率。
- Extreme formant shifting is like 1/2 speed tape ,but realtime. 偏激的共振峰偏移像半速运行的磁带，但是实时的。
- He manipulated the frequency dial of the radio. 他开始调拨频率键盘。
- The pitch depends on the frequency. 音调的高低是由频率决定的。
- The resulting frequency varies by a few percent. 最终频率有少许变动。
- I am majored in audio frequency amplifier. 我主修音频放大器。
