Speech watermarking system

speech watermarking system Speech watermarking is a possibility to use the existing voice 21 overview of the system communication channel to transmit this additional digital informa- the system combines spread spectrum technology with a simple, tion while keeping the interference with the speech signal at a very basic frequency masking approach.

This poject explores security enhanced speaker verification and identification systems based on speech signal watermarking the goal is to detect several situations where a playback speech, a synthetically generated speech, a manipulated speech signal or a hacker trying to imitate the speech is fooling the biometric system. The proposed pd speech signal watermarking system has two main components, which are watermark embedding and watermark extraction a dwt-svd based watermarking scheme is adopted in the proposed system. Therefore, we combine digital watermark evaluation and a biometric authentication system 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. Speech watermarking technique is generally used to conceal the secret messages however this as shown in figure1 our proposed system contains two main components a speech normalization this module deals with the normalization of the voice speech to hide speaker identity it contains two.

speech watermarking system Speech watermarking is a possibility to use the existing voice 21 overview of the system communication channel to transmit this additional digital informa- the system combines spread spectrum technology with a simple, tion while keeping the interference with the speech signal at a very basic frequency masking approach.

Speech features have been selected to use as a watermark data because it unique for any individual instead of current digital watermarking techniques which use a digital sample such as a logo image, random numbers, or a digital signature as a watermark. This thesis investigates the embedding of digital side information, so called watermarks, into speech signals applied to the atc voice radio, a watermarking system could overcome existing limitations, and ultimately increase safety, security and efficiency in atc. Speech watermarking is a possibility to use the existing voice communication channel to transmit this additional digital informa- tion while keeping the interference with the speech signal at a very. 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.

The objective of this paper is to detect speech forgery using digital audio watermarking and pattern recovery techniques a digital watermark pattern has been attached with the speech signal to detect three kinds of alterations or forgeries such as substitution, insertion, and removal. In this section, we study a number of watermarking system requirements as well as the tradeoffs among them speech watermarking can be split into two types, these are fragile and robust the following section describes the definition of these two different types of watermarking. Digital speech watermarking is a robust way to hide and thus secure data like audio and video from any intentional or unintentional manipulation through transmission. Realized speech authentication based on audio watermarking by embedding watermark, which is generated from mel-frequency cepstral coe cients (mfccs) of speech in the low intensity points detected in the signal. 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.

Speech is a specific form of audio signal therefore, the techniques developed for audio watermarking are presumed to be applicable to speech watermarking however, speech differs from typical audio signals with regard to spectral bandwidth, intensity distribution, signal continuity, and production modeling [ 3 , 4 . Novel method for watermarking system operating on the hf and vhf radio links z piotrowski & p gajewski the system process speech signal has a sampling the main goal of the projected algorithm is a watermarking system based on a drift phase scanner, a phase angle correction and a coherent averaging. Crm customer service customer engagement customer experience point of sale content management system (cms) accounting & finance accounting & finance accounting billing and invoicing budgeting compliance payment processing risk management analytics follow speech_watermarking speech_watermarking web site other useful business software. Keyword: speech authentication, watermarking, noise removal, feature extraction i introduction input to the system for authentication the speech signal is divided into frames of fixed duration (60ms) and the mel frequency cepstral coefficients (mfcc) features of the frames are extracted.

Authenticating sensitive speech-recitation in distance-learning applications using real-time audio watermarking omar tayan1,2, complicated than the human visual system recently, many watermarking techniques have been developed to address speech and watermarking algorithm which embeds copyright. Researcharticle semifragile speech watermarking based on least significant bit replacement of line spectral frequencies mohammadalinematollahi,1 chaleevorakulpipat,2. Adaptive spread spectrum based watermarking of speech shilpa arora, sabu emmanuel speech watermarking is a technique of embedding a digital every speech sample as the input passes through the system assume that the watermark information to be embedded consists of values {−1,1} thus, the watermark information. This paper presents a security enhanced speaker identification system based on speech signal watermarking our proposed system can detect several situations where a playback speech, a synthetically generated speech, or a hacker trying to imitate the speech is fooling the biometric system.

  • Table 6 presents the effects of the developed semi-fragile digital speech watermarking system on the performance of the gmm speaker identification system in terms of recognition rate as shown in the table, the best recognition rates were reported for the timit speech database, which is a clean speech database.
  • 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.
  • With speech watermarking that can satisfy all the requirements (inaudibility, blindness, robustness, and fragility) to achieve this, a formant enhancement-based watermarking.

Eng&techvol26,no2,2008 a content-based authentication using digital speech data 230 1 introduction speech watermarking is a technique. 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. This paper proposes a signal adaptive, spread spectrum based inaudible speech watermarking scheme the local signal energy information is used to compute the energy of the watermark to be embedded.

speech watermarking system Speech watermarking is a possibility to use the existing voice 21 overview of the system communication channel to transmit this additional digital informa- the system combines spread spectrum technology with a simple, tion while keeping the interference with the speech signal at a very basic frequency masking approach. speech watermarking system Speech watermarking is a possibility to use the existing voice 21 overview of the system communication channel to transmit this additional digital informa- the system combines spread spectrum technology with a simple, tion while keeping the interference with the speech signal at a very basic frequency masking approach. speech watermarking system Speech watermarking is a possibility to use the existing voice 21 overview of the system communication channel to transmit this additional digital informa- the system combines spread spectrum technology with a simple, tion while keeping the interference with the speech signal at a very basic frequency masking approach. speech watermarking system Speech watermarking is a possibility to use the existing voice 21 overview of the system communication channel to transmit this additional digital informa- the system combines spread spectrum technology with a simple, tion while keeping the interference with the speech signal at a very basic frequency masking approach.
Speech watermarking system
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2018.