1) AF audio frequency
音频频率
2) audio-frequency meter
音频频率计
3) Fundamental frequency
基音频率
1.
According to the fundamental frequency of speech is low,the filter charater of wavelet transform is applied to reject the high-frequency signal of speech,and then detecting the fundamental frequency of speech by using ACF which is a simple and effective algorithm.
根据语音的基音频率较低这一特点,利用小波变换的滤波特性剔除了语音的高频部分,然后再利用计算速度较快的自相关函数法检测语音的基音频率,有效剔除了高频共振峰和噪音的影响,其估计基音频率准确性高,稳定性好,运算速度较快。
4) pitch
[英][pɪtʃ] [美][pɪtʃ]
基音频率
1.
The speech was modeled and decomposed by use of the harmonic sinusoidal modal;the pitch was extracted and the rhythm character of speech was transformed based on gauss model;the last 10 coefficients of harmonic sinusoidal model amplitude were extracted and the spectral feature was transformed based on VQ and codebook mapping method.
利用正弦谐波模型对语音进行建模和分解,提取语音的基音频率,利用高斯建模和变换实现语音韵律特征的变换;提取出正弦谐波幅度的后10阶系数,作为语音的频谱特征参数,利用矢量量化和码书映射的方法实现语音频谱特征的变换。
2.
At last,the posterior probability of the feature Mel-Frequency Cepstral Coefficients(MFCC) was combined with the pitch result to form a new method for computing.
首先概述了特征提取、识别方法及性别识别的过程;然后通过减少提取特征的语音帧数和降低高斯混合模型的混合阶数来提高性别识别速度;最后,将由M el频率倒谱参数(MFCC)特征和基音频率特征两种方法得到的测试样本后验概率结合,提出新的计算测试样本后验概率的方法。
3.
In addition ,we study pitch which is a common feature of audio ,and use it to distinguish between speech and music.
另外,本文就一种最常见的特征基音频率进行了一定的研究,并将之用于区分语音、音乐的系统中去,完成了一些实验。
5) pitch frequency
基音频率
1.
In the paper, the process of the pitch frequency detection is firstly introduced, then the speech data of speakers of different ages , sexes as well as the speech data with variable consonant actions are estimated with different length of frame.
本文首先简要介绍了基音频率的检测过程,然后对不同年龄层次、不同性别说话人和不同辅音作用下的语音数据,按照不同的帧长进行基音检测。
2.
MFCC parameters is main describes the spectrum envelope features,which is used to state the vacal track characterizatics,while ignoring the impact of pitch frequency.
MFCC参数主要描述了表征声道特性的谱包络特征,而忽略了基音频率对它的影响。
6) audio power
音频功率
1.
Design of dead time control circuit for a class D audio power amplifier;
D类音频功率放大器中的死区控制电路设计
补充资料：频率计量(见时间频率计量)
频率计量(见时间频率计量)
frequency metrology: see time and frequency metrology
口n IQ liliang顷率频率计皿(f比quency metrolo盯) 计t。见时闰
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条