4 papers
What Counts as Real? Speech Restoration and Voice Quality Conversion Pose New Challenges to Deepfake Detection
Shree Harsha Bokkahalli Satish, Harm Lameris, Joakim Gustafson +1
Audio anti-spoofing systems are typically trained to assign one authenticity label to an entire speech utterance. This formulation becomes under-specified for transformations where…
Lost in Phonation: Voice Quality Variation as an Evaluation Dimension for Speech Foundation Models
Harm Lameris, Shree Harsha Bokkahalli Satish, Joakim Gustafson +1
Recent advances in Speech Foundation Models (SFMs) enable direct processing of raw audio, allowing models to respond to subtle paralinguistic variation. However, how these models i…
Speak Your Mind: The Speech Continuation Task as a Probe of Voice-Based Model Bias
Shree Harsha Bokkahalli Satish, Harm Lameris, Olivier Perrotin +2
Speech Continuation (SC) is the task of generating a coherent extension of a spoken prompt while preserving both semantic context and speaker identity. Because SC is constrained to…
Should you use a probabilistic duration model in TTS? Probably! Especially for spontaneous speech
Shivam Mehta, Harm Lameris, Rajiv Punmiya +3
Converting input symbols to output audio in TTS requires modelling the durations of speech sounds. Leading non-autoregressive (NAR) TTS models treat duration modelling as a regress…