3 accepted papers
Text-to-speech (TTS) synthesis systems are being advanced to achieve naturalness and intelligibility in synthetic speech. Unit selection-based synthesis (USS) and Hidden Markov Model-based text-to-speech synthesis systems (HTS) are recent techniques in this area. USS-based synthetic speech is known…
Current countermeasures used in spoof detectors (for speech synthesis (SS) and voice conversion (VC)) are generally phase-based (as vocoders in SS and VC systems lack phase-information). These approaches may possibly fail for non-vocoder or unit-selection-based spoofs. In this work, we explore excit…
In this paper, we propose a novel algorithm which uses simple lowpass filtering as pre-processing for detection of epochs. Lowpass filtering with an appropriate cut-off frequency removes the effect of vocal tract characteristics as formants lie in relatively higher frequency regions. The method is e…