Properties of an Emergency Broadcasting System Based on Audio Data Hiding
Properties of an Emergency Broadcasting System Based on Audio Data Hiding
复制标题
基于音频数据隐藏的紧急广播系统的特性
DOI：
10.1109/iih-msp.2015.88
复制
发表时间：
2015
期刊：
影响因子：
--
通讯作者：
P. Udaya
中科院分区：
文献类型：
--
作者：
T. Kojima;Akihiro Oizumi;P. Udaya
已经为图像和音频信号开发了使用完全互补码的数据隐藏方案。它已被证明是一个高的有效载荷和低误码率，可以通过这样的数据隐藏策略，因为理想的自相关和互相关特性的完全互补码实现。提出了一种基于完全互补码的数据隐藏方案的紧急广播系统。在拟议的方案中，有关地震和海啸等灾害的详细信息被嵌入到警报声等音频信号中。智能手机和移动的平板电脑可以轻松处理警报器等音频信号，以便在社区中更快地传播灾害信息，帮助有效安全地疏散。本文展示了在疏散营等室内环境中广播灾难信息的场景下，使用扩音器发出的真实的警报声进行实际实验的结果。结果表明，通过选择合适的参数，可以在较小的误差概率下提取出嵌入信息。
Data hiding schemes using complete complementary codes have been developed for image and audio signals. It has been shown that a high payload and a low bit-error-rate can be achieved by such data hiding strategies because of the ideal auto-and cross-correlation properties of complete complementary codes. The authors have proposed an emergency broadcasting system based on the data hiding scheme using complete complementary codes. In the proposed scheme, detailed information on disasters such as earthquakes and tsunamis are embedded into audio signals such as siren sounds. The audio signals like sirens can be processed easily by smartphones and mobile tablets for faster dissemination of disaster information in the community aiding an effective and safe evacuation. This paper shows the results of the practical experiments using real siren sounds from a loud speaker under the scenario where the disaster information is broadcast in indoor situation like an evacuation camp. It is shown that the embedded information can be extracted with small probability of error by choosing appropriate parameters.