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- pitch period detection 基音周期检测
- The algorithm for pitch period search with MBE model is complex in calculation and low flexible. MBE模型的基音周期搜索算法存在着运算量大,抗噪性能一般等缺点。
- The pitch period of the voiced speech is extracted from the cepstrum of predictive residual. 最后根据倒谱的特征求得浊音语音的基音周期。
- Pitch period is an important parameter of speech signal,and it has been applied in many domains. 基音周期是语音信号的一个重要参数,它在多个领域有着广泛的应用。
- The arithmetic searches for the least central offset through partition speech sub-band and confirms pitch period of the transition sound. 该算法主要通过划分语音子带来搜索最小中心偏移量，较准确地确定过渡音的基音周期。
- This paper proposed a MFCC feature extraction method based on pitch period to improve the performance of speaker recognition. 摘要提出了一种可用于改善说话人识别效果的基于基音周期的可变窗长语音MFCC参数提取方法。
- The experimental results show that speech signal is acquired at sample frequency of 22 kHz and the pitch period is estimated by finding the distance between the local maximums. 通过计算不同尺度下的相关系数局部极大值之间的距离，能估计出基音周期；
- NPD first calculates a pitch period through a time_domain principle cycle piker and the estimate is checked by some criterion to ascertain whether it is the true one or not. 本基音检测方法是利用汉语语音结构特点，以主循环为基本概念，在时域上处理确定浊音音段的基音，而对清浊不明晰的音段，从时、频域两方面进行基音估算，并设计了基音选择逻辑和清浊音判断逻辑。
- Ercelebi E. Second generation wavelet transform-based pitch period estimation and voiced／unvoiced decision for speech signals[J]. Applied Acoustics， 2003， 64(1)： 1101-1122. 作者所在单位：(1.;浙江理工大学信息电子学院，浙江杭州310018；2
- This paper concerns the periodical detection of circulating scistosome antigens(CSA), specific antibodies,and circulating immune complexes(CIC)as well as the absolute eosino- phil count in infected mice both with and without praziquantel treatment. 本文报道定期检测治疗和未治疗日本血吸虫病小鼠循环抗原(CSA)、特异性抗体、循环免疫复合物(CIC)以及嗜酸性粒细胞(EOS)的结果。
- Stockpile availability is an important index which weighing the stockp ile missile fighting function, also is an important parameter which weighting th e effectiveness of missile periodical detection. 储存可使用率是衡量导弹战斗性能的重要指标，也是衡量其定期检测有效性的重要参数。
- She has keyed the piano up to concert pitch. 她已经把钢琴的音调升到音乐会的音高标准。
- The runner went to second base on a wild pitch. 一记瞎设让跑垒员跑上了第二垒。
- A vocal speed increases since some pitch periods is deleted from a vocal signal sequence.However, if pitch periods is inserted or deleted, it causes the phases uncontinuous and the sound pulsated. 插入部分基音周期使语音速度降低,删除部分基音周期能使语音速度提高。
- Two departments of displacement sensor with absolutely place detecting ability, displacement information of one period detecting system and period information detecting system,is also introduced. 探讨时，先从总体上分析绝对式偏振光位移传感器的检测原理，然后分别对单周期位移信息检测系统和周期信息检测系统两个子系统进行实现方法的讨论，最后提出传感器总的实现方法。
- The coach built the team up to a fighting pitch. 教练使全队振作起来，准备一搏。
- The pitcher tends to pitch the ball too high. 这个投球手常把球掷得过高。
- That period was a bright page in the history of Chinese literature. 那个时期是中国文学史上光辉的一页。
- They that touch pitch will be defiled. 近墨者黑。
- Let us hope that the period of this injustice will be over soon. 让我们希望这个不公正的时期很快结束吧。
