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- First, VAD is done to noisy speech, then spectral subtraction based on the perceptual mask threshold follows to achieve noise reduction. 这种新算法源于VAD技术及谱减法,它先对含噪声信号进行VAD处理,而后是基于感知掩蔽阈值的谱减法运算,降低噪声,获得清晰的增强信号。
- Digital audio watermarking embedding algorithm based on auditory masking model is proposed, embedding watermarking by quantizing low-band coefficients of DCT transformation based on masking threshold. 摘要提出一种基于听觉掩蔽模型的音频数字水印算法，根据掩蔽阈值量化音频经DCT变换后的低频系数来嵌入水印。
- Auditory Masking Threshold (AMT) 听觉掩蔽门限
- Audio signal was segmented into frames and the masking thresholds of all sub-bands were estimated by psychoacoustic analysis. 算法将音频信号分帧进行心理声学模型分析,估计频域中各子带的最小掩蔽阈值;
- And the image bits were hidden in the sub-bands below the masking thresholds,which made the audio signal little perceptual distortion and the image invisible. 然后将图像转化为比特流隐藏于音频信号频域子带,并用掩蔽阈值控制嵌入强度。
- The cabin has a flat stone for a threshold. 这间小屋用一条扁平的石头做门槛。
- He wore a mask so that no one should recognize him. 他戴了一个面罩，使别人认不出他来。
- The treaty will be the threshold of lasting peace. 这个条约将成为持久和平的开端。
- He was on the threshold of his career. 他的事业刚刚起步。
- Capable of masking or neutralizing odors. 可除臭的可以掩臭或中和臭气的
- He had never crossed the threshold of a bar before. 他过去从未进过酒吧的门。
- Scientists are now on the threshold of an important discovery. 科学家们很快就会有一项重大发现。
- Sham is sham and the mask must be stripped off. 假的就是假的，伪装应当剥去。
- He tried to mask his disappointment with a smile. 他试图以微笑来掩饰他的失望。
- The mask fitted tightly over his face. 他用面具把脸蒙得严严的。
- They did so under the mask of charity. 他们是打着慈善的幌子这么做的。
- Robust Speaker Recognition Using Auditory Masking Thresholds 听觉掩蔽门限在说话者识别中的应用
- The tax threshold for a single pensioner is 450 dollars. 单身养老金领取者的征税起点是450美元。
- The court is not legally justified in stopping at the threshold of the case. 一开始就使案件停止不前，法院这样做是完全不合法的。
- Such feelings tend to remain submerge beneath a mask of social politeness. 在社交礼貌的掩盖下，这样的情感往往不会显露出来。
