Speech watermarking system
Speech modulation for image watermarking mourad talbi 1, ben fatima sira 2 1 center of researches and technologies of energy, tunisia 2 engineering school of tunis, tunisia abstract embedding a hidden bits stream in a file is named digital watermarking the file could be a text, an image, an audio, or a video actually. Every speech sample as the input passes through the system assume that the watermark information to be embedded consists of. In addition, a speech watermarking system should be robust to various speech compression operations [1-6] the development of speech watermarking algorithms, therefore, involves a trade-off among speech fidelity, robustness, and watermark pattern embedding rate specifications. Watermarking is the technique and art of hiding additional data (such as watermarked bits, logo and text message) in the host signal which includes image, video, audio, speech, text, without any perceptibility of the existence of additional information. This paper outlines a package synchronization scheme for blind speech watermarking in the discrete wavelet transform (dwt) domain following two-level dwt decomposition, watermark bits and synchronization codes are embedded within selected frames in the second-level approximation and detail subbands.
Watermark synchronization for featurebased embedding application to speech,” submitted to_英语学习_外语学习_教育专区。we propose a novel framework for synchronization in feature-based data embedding systems the framework is tolerant to de-synchronizing errors in feature estimates. Abstract: use of watermarking techniques to provide authentication and tamper proofing of speech in mobile environment is becoming important however, the current efforts do not allow for user-specifiable quality for the watermarked speech this paper proposes a watermarking algorithm that allows user-customizable quality for watermarked gsm (global system for mobile) speech. It is obligatory to protect speech samples from spoofing attacks like one mimicry artist can mimic the voice of any person so at that time this system fails to provide security the security check of watermarking pattern. National gallery of the spoken word (an nsf digital libraries ii initiative) partners: the ngsw project is a very large scale undertaking involving four colleges at msu and numerous partner institutions across the country (see ngsw web page) the speech processing laboratory has worked along two research tracks, the primary focus being.
Speech watermarking is a possibility to use the existing voice communication channel to transmit this additional digital informa- tion while keeping the. The image watermarking system consists of an embedder and a detector, as illustrated in figure 1 the embedder takes two inputs one is the payload or watermark, and the other is the cover work or the host image the output of the embedder is typically transmitted or recorded later that work is presented as an input to the detector most. Of digital speech watermarking including issues of a) the watermark, which is unique to the owner authentication, perceptibility, speed, reliability and capacity b) the encoder for embedding the watermark into the data. Speech is the most important form of human communication which carries valuable information on who/what/how speaker speaks currently, applying speech signal for computer science is growing due to three major reasons  first, speech is easy to be produced, captured, and transmitted as it has a.
Based speech watermarking module is run in the cloud to embed watermark to the signal in case of authentication, watermark in case of authentication, watermark is extracted from the questioned signal and matched with the stored watermark experimental results indicate that the proposed. This application scenario is as follows: audio watermarking schemes are used to embed metadata into the speech reference data of the biometric speaker recognition system metadata in our context may consist of feature template representations complementary to the speech modality, such as iris codes or biometric hashes, ancillary information. Abstract a robust and blind digital speech watermarking technique has been proposed for online speaker recognition systems based on discrete wavelet packet transform (dwpt) and multiplication to embed the watermark in the. Digital speech watermarking for authenticity of speaker in speaker recognition system abstract: speaker recognition is a process of speakeridentification and speaker verification refers to specific tasks where security is a main concern, speaker recognitiontechnique is one of the most helpful recognition techniques intoday world. Mobile healthcare in a cloud-based system increases the easiness and the ubiquitous nature of patient-doctor relationship one of the major issues of this healthcare is secure transmission and data authenticity if the data is not transmitted securely or not authenticated, the clients may face embarrassment in this paper, we propose a cloud.
Watermarking system consists of two phases, namely, watermark embedding and extraction as shown in figure-1 in the embedding phase, a watermark information ( w ) is securely inserted into the original database using secret key ( k ) then the watermarked database becomes ready for publication or distribution the extraction. Eng&techvol26,no2,2008 a content-based authentication using digital speech data 230 1 introduction speech watermarking is a technique. Watermarking free speech the idea for an internal operating system was first conceived by kim jong-il, according to mr grunow “he said north korea must create their own operating system and that is what they’ve done. Semifragile speech watermarking, as the most important part of digital watermarking technology, verifies that a speech is genuine semifragile speech watermarking is a general authentication method [3, 4] applied for verification it is required in several applications, including forensics, telephone banking, voip, police security, air traffic.
Secure robust and hybrid watermarking for speech signal using 1629 journal of engineering science and technology june 2017, vol 12(6) system they exploit the fact that human auditory system in insensitive to small. Frequently in the speech domain in speech watermarking, spread spectrum type system is used to be method of choice for robust embedding only a few watermarking methods have. Real time digital watermarking system for audio signals – signal digital watermarking: algorithms and applications is the property of 1 real-time adaptive speech watermarking scheme for mobile applications shilpa arora, sabu emmanuel school of computer engineering, nanyang technological university. Download research article robust digital speech watermarking for online speaker recognition.
Blind digital speech watermarking based on eigen-value quantization in dwt mohammad ali nematollahi , sar al-haddad, faraneh zarafshan department of computer & communication systems engineering, faculty of. Biometric speech watermarking technique in images using wavelet transform offering an example of a secure biometric system the proposed watermarking method embeds a representation of a biometric trait, such as speech which corresponds to the identity of owner, in the digital images as a biometric of human being, speech is. Analysis of vulnerability of keys in a watermarking system for attack susceptibility wahid rehman1, a host speech signal is transformed into a matrix and a sensitive hash function (md5) along with a secret key generates a fragile watermark it is to be noted that though fragile scheme, like the robust watermarking schemes are also. Speech watermarking can effectively solve these problems by embedding digital information into the original speech signal this paper proposes a hybrid watermarking method for speech signal the hybrid method utilizes the source-filter model of speech production so that the speech signal can be separated into two independent.