S - sonant 中文 - EN166

sonant adj.【語音】有聲音的，濁音的；成(音)節的。n.濁音...

sonar
In accordance with chaotic essence of speech signals , syllable segmentation in continuous speech is researched by fractal theory . an approach of syllable segmentation using variance fractal dimension is proposed , its performance is analyzed in detail . the method can discriminate between voiced and unvoiced , between surd and sonant , but it can hardly discriminate between sonant 本文根據語音信號的混沌本質，利用分形理論研究了漢語連續語音中的音節分割問題，提出了基于方差分形維數的音節分割方法，并詳細分析了該方法的性能，它能很好地解決了無聲與有聲、濁音與清音間的分割問題，但很難解決濁音間的分割問題，當濁音相連且過渡段較短時，該方法無法實現它們之間的分割。
According to difference of speech waveform between transition segment and non - transition segment , dividing between sonant is researched using waveform cross correlation . a method of syllable segmentation is presented based on waveform cross - correlation . ( 2 ) pitch detection of speech signals 為解決濁音之間的分割問題，本文根據語音中過渡段與非過渡段語音波形的差異，利用波形互相關性進行了研究，提出了基于波形互相關性的音節分割方法，并進行了實例分析。
But it is not the same with surd or the alternation of sonant and surd . on the base of the acoustics , a whole linear time - varying discrete speech produce model is established through anatomising the factors including track , driving source and lip eradiation the mechanism of speech in this paper , and we draw a conclusion that the time between glottal closure is pitch period 本文從聲學理論出發，剖析了語音產生的機理，綜合考慮聲道、激勵源和嘴唇輻射三方面的因素，建立了一個完整的、線性的和時變的語音產生的離散系統模型，得出兩次聲門閉合事件之間的時間間隔就是基音周期的結論。
Experimental result shows that for sonant part of speech signal , 3 ~ 5 common ridges is enough to describe the main characteristics . signal compression is achieved by choosing proper way to represent the ridge information and use it to reconstruct the original signal 在信號重建過程中，選擇合適的方法用少量數據來描述起關鍵作用的參數，并用這些參數來重建信號，可以達到信號壓縮的目的。
Because the speech signal is periodicity at sonant which vocal cords surge in low frequency and similarity to white noises at surd , the pitch can be detected in traditional way through the correlation operation without the speech produce model 在人類語音的濁音段，聲帶發生較低頻率的振蕩，語音信號呈明顯的準周期性，而在清音段，語音信號則類似于白噪聲。
One is the relation between long - term prediction and short - term prediction , another is the difference between the surd and sonant in linear prediction , robust of message source encoding is also researched . 3 清音和濁音在安排短時預測和長時預測方面的問題；短時預測和長時預測相互包容性問題；提高算法的魯棒性等方面問題。