该算法提取水印信息时不需要原始数字音频信号。
The proposed algorithm can extract the watermark without the help from the original digital audio signal.
给出了数字音频信号中信息隐藏的伪随机序列生成算法。
The information is hidden in digital audio signals by an arithmetic of Preudo-random sequences generation.
本发明涉及用于在数字音频信号中嵌入并检测水印的方法。
The invention relates to a method for embedding and detecting a watermark in a digital audio signal.
数字音频信号的模型表示与压缩编码一直是学界和业界研究的热点课题。
The signal modeling and compression have been the hot topics in both academic and industry research areas.
该编码器的信号输入包括两种类型，模拟音频信号的输入和串行数字音频信号的输入。
There are two kinds of input signals in this encoder: analog audio signal input and serial digital audio signal input.
本文提出的水印嵌入算法是数字音频信号独立型的，在抽取水印时不需要原始的信号。
The algorithm proposed in this paper is digital-audio-signal-independent, that is, the original audio signal is not required in the procedure of extracting watermark.
实验结果表明该算法对数字音频信号的滤波、有损压缩、重新采样等操作具有很强的稳健性。
The experimental results show that the algorithm is robust to many operations on digital audio signal, such as filter, lossy compression, and so on.
基于FPGA的数字音频采集、存储和播放系统实现了数字音频信号的处理、SDRAM存取以及字符型LCD显示等功能。
A digital audio recording, storing and playing system based on FPGA includes the processing of audio signals, the access to SDRAM and the display on LCD (character).
数字音频水印技术和感知音频编码技术相结合，在音频信号中嵌入水印数据。
Combined with perceptual audio coding technology, digital audio water-marking technology embeds watermark data into audio signals.
提出一种基于DSP、ISP及专用数字音频接口芯片的数字接口音频卡的实现方案，可以完成音频信号录播、编辑、压缩过程的全数字化处理。
Give an implement scheme of digital interface audio card based on DSP, ISP and special digital audio interface chip, which can do full process of audio recording, playing, editing and compressing.
系统包括话机按键双音频信号识别、圆轮廓形状误差谐波分析、数字音频效果及原理性演示实验等。
The system includes the dual-tone multifrequency signal detection module, the musical sound processing module, the harmonical analysis module of circularity and many other demonstration modules.
系统包括话机按键双音频信号识别、圆轮廓形状误差谐波分析、数字音频效果及原理性演示实验等。
The system includes the dual-tone multifrequency signal detection module, the musical sound processing module, the harmonical analysis module of circularity and many other demonstration modules.
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