Title :
A speech information hiding algorithm based on the energy difference between the frequency band
Author :
Zong, Qingquan ; Guo, Wei
Author_Institution :
Comput. Sch., Wuhan Univ., Wuhan, China
Abstract :
This paper presents an information hiding algorithm which can effectively resist compression attack in the encoding of speech communications. Experiments show that the algorithm can effectively resist the PCMA, PCMU, G722 voice compression coding and filtering operation, the audio remains strong robustness, carrying secret voice segment average SNR is close to 40dB, which has reach the transparency requirements. This algorithm is based on the energy difference between the band to hide the information. The algorithm has great practicality, which is simple and based on blind detection. The hidden capacity is 30bit/s. Embedded real-time adjustments to expressly speech in the process of embedding strength, to get the effect of hidden effects and decoding. In the process of embedding, through realtime adjustment of embedding strength for clear voice to gain good hiding and perfect decoding effects, Which can be good used in hidding some information in the wireless communications.
Keywords :
data compression; data encapsulation; security of data; speech coding; G722; PCMA; PCMU; SNR; blind detection; compression attack; energy difference; filtering operation; frequency band; secret voice segment; speech communications encoding; speech information hiding algorithm; voice compression coding; wireless communications; Robustness; Signal processing algorithms; Signal to noise ratio; Speech; Speech coding; Watermarking; energy difference; frequency band; information hiding agorithm; speech compression coding;
Conference_Titel :
Consumer Electronics, Communications and Networks (CECNet), 2012 2nd International Conference on
Conference_Location :
Yichang
Print_ISBN :
978-1-4577-1414-6
DOI :
10.1109/CECNet.2012.6201965