Speaker verification security improvement by means of speech watermarking
Speech Communication
Speaker identification security improvement by means of speech watermarking
Pattern Recognition
Bandwidth extension of telephone speech aided by data embedding
EURASIP Journal on Applied Signal Processing
Speech watermarking for analog flat-fading bandpass channels
IEEE Transactions on Audio, Speech, and Language Processing
Audio digital watermarking based on hybrid spread spectrum
WEDELMUSIC'02 Proceedings of the Second international conference on Web delivering of music
Speech authentication by semi-fragile watermarking
KES'05 Proceedings of the 9th international conference on Knowledge-Based Intelligent Information and Engineering Systems - Volume Part III
A novel framework for multiple creatorship protection of digital movies
DRMTICS'05 Proceedings of the First international conference on Digital Rights Management: technologies, Issues, Challenges and Systems
Multimedia Tools and Applications
An overview of digital speech watermarking
International Journal of Speech Technology
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The technique of embedding a digital signal into an audio recording or image using techniques that render the signal imperceptible has received significant attention. Embedding an imperceptible, cryptographically secure signal, or watermark, is seen as a potential mechanism that may be used to prove ownership or detect tampering. While there has been a considerable amount of attention devoted to the techniques of spread-spectrum signaling for use in image and audio watermarking applications, there has only been a limited study for embedding data signals in speech. Speech is an uncharacteristically narrow band signal given the perceptual capabilities of the human hearing system. However, using speech analysis techniques, one may design an effective data signal that can be used to hide an arbitrary message in a speech signal. Also included are experiments demonstrating the subliminal channel capacity of the speech data embedding technique developed here.