临界频带(Critical Band)是人的耳蜗的“滤波器”，在这个带宽内若同时存在两个声调，人对声调的感受会受干扰，产生听觉掩蔽效应(即一个强的音盖过一个弱的...
基于330个网页-相关网页
基本思路是构造小波包的树形结构,将信号分解到30个不等宽的子带,使之逼近临界带宽(critical band)的分布,并由MPEG-Ⅰ的心理声学模型Ⅰ求出各子带的掩蔽门限,然后根据该子带的掩蔽门限对变换的个子带系数作量化处理,组织人员评价...
基于26个网页-相关网页
aural critical band 听觉临界带
critical band rate 临界频带率
auditory critical band [电子] 听觉临界频带
critical band width 临界带宽度
critical-band level 特征频带声强级
critical-band transformation 临界带变换
critical band rate level 临界频带率
Critical Band Filter Bank 临界带宽滤波器组
·2,447,543篇论文数据，部分数据来源于NoteExpress
以上来源于: WordNet
A parametric psychoacoustic model based on critical band rate, level - dependent spreading function, non - linear superposition and forward masking was proposed.
摘要提出了基于临界频带率、依赖于强度的扩展函数、非线性迭加和前向掩蔽效应的参数心理声学模型。
By studying the principle of hearing system in identification of sound signal, a method of feature extraction for passive sonar target based on critical band spectrum energy is proposed.
利用被动声纳目标辐射噪声特征主要集中在低频部分的特点，结合听觉系统识别声音信号的原理，提出了一种被动声纳目标临界频带频谱能量的特征提取方法。
Calculating masking threshold of every critical band by auditory masking model, then quantization steps are controlled by masking threshold and value of audio carrier of the embedding points.
依据听觉掩蔽模型计算每个临界频带的掩蔽阈值，再根据水印嵌入点处的掩蔽阈值和音频载体值的大小共同控制量化步长。
应用推荐