auditory masking threshold

基本解釋

Watermarking embedding algorithm based on auditory masking is proposed in this paper, which embeds watermarking based on masking threshold in low-band coefficients of DCT transformation.
文中提出一種基于聽(tīng)覺(jué)掩蔽效應(yīng)的音頻數(shù)字水印算法，根據(jù)掩蔽閾值在DCT低頻系數(shù)中嵌入水印。
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.
依據(jù)聽(tīng)覺(jué)掩蔽模型計(jì)算每個(gè)臨界頻帶的掩蔽閾值，再根據(jù)水印嵌入點(diǎn)處的掩蔽閾值和音頻載體值的大小共同控制量化步長(zhǎng)。
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.
依據(jù)聽(tīng)覺(jué)掩蔽模型計(jì)算每個(gè)臨界頻帶的掩蔽閾值，再根據(jù)水印嵌入點(diǎn)處的掩蔽閾值和音頻載體值的大小共同控制量化步長(zhǎng)。