Lossless Steganography for Speech Communications
نویسنده
چکیده
Transmitting supplementary data by steganography, new functions can be added to communications systems without changing conventional data format. Based on this concept, several applications have been proposed for enhancing the speech quality of telephony communications. These applications secretly transmit side information along with speech data itself for enhancing the performance of signal processing such as packet loss concealment and band extension (Aoki, 2003; Aoki, 2006; Aoki, 2007a; Aoki, 2012).
منابع مشابه
A Lossless Steganography Technique for G.711 Telephony Speech
Steganography may be employed for secretly transmitting side information in order to improve the performance of signal processing such as packet loss concealment and band extension of telephony speech. The previous studies employ LSB replacement technique for embedding steganogram information into speech data. Instead of such a lossy steganography technique, this study proposes a lossless stega...
متن کاملEfficient data hiding scheme using lossless data compression and image steganography
Steganography is an art of hidden communication in which secret message is embedded into a cover image. It has many applications like Online transactions, military communication etc. In this paper, we have proposed a data hiding scheme using image steganography and compression. This scheme can be applied to gray scale as well as color images. This scheme improves the data hiding capacity of the...
متن کاملA Hash based Approach for Secure Keyless Steganography in Lossless RGB Images
This paper proposes an improved steganography approach for hiding text messages in lossless RGB images. The objective of this work is to increase the security level and to improve the storage capacity with compression techniques. The security level is increased by randomly distributing the text message over the entire image instead of clustering within specific image portions. Storage capacity ...
متن کاملA Reversible and Imperceptible Acoustic Watermarking Using Partially-applied Huffman Lossless Compression
In this paper, a reversible and robust acoustic watermarking based on lossless compression is proposed. Stereo speech data is represented by 16 bit for each sampling point and then divided into frames. Then Huffman lossless compression algorithm is applied to insignificant 4 bits in each sampling point partiality to reserve hiding capacity. An average of 0.7035 and the best 0.686 compression ra...
متن کاملConcealment of Information in Inactive Audio Frames of VoIP
-Steganography is the hiding of a secret message within an ordinary message and the extraction of secret message at its destination. In digital steganography, electronic communications may include steganographic coding inside of a transport layer, such as a document file, image file, program or protocol. This paper describes how to segregate the audio that are streaming in the Voice over Intern...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2012