为了探索情感语音相对于中性语音的变化规律,该文对实验室采集的中文情感语音库M A SC@CCNT进行初步实验分析。首先对语音库进行听辨分析,甄选感情明显的语料,再针对含有兴高采烈、愤怒、惊慌、悲伤等4种情感的语音信号,分析它们的时间构造、能量构造、基频构造和共振峰构造的特征,并通过和不带感情的平静语音信号特征进行比较,得出了不同情感信号特征的分布变化规律。结果表明:时间构造、频谱、能量、基音频率和元音共振峰这5种特征在分辨情感语音上有着明显的作用,而悲伤情感最易分辨;情感语音的变化没有统一的规律,因说话人的性别而异,甚至因人而异。
Battery models are of great importance to develop portable computing systems,for whether the design of low power hardware architecture or the design of battery-aware scheduling policies.In this paper,we present a physically justified iterative computing method to illustrate the discharge,recovery and charge process of Li/Li-ion batteries.The discharge and recovery processes correspond well to an existing accurate analytical battery model:R-V-W's analytical model,and thus interpret this model algorithmically.Our method can also extend R-V-W's model easily to accommodate the charge process.The work will help the system designers to grasp the characteristics of R-V-W's battery model and also,enable to predict the battery behavior in the charge process in a uniform way as the discharge process and the recovery process.Experiments are performed to show the ac-curacy of the extended model by comparing the predicted charge times with those derived from the DUALFOIL simulations.Various profiles with different combinations of battery modes were tested.The experimental results show that the extended battery model preserves high accuracy in predicting the charge behavior.
