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arXiv · 2511.05143

Synthesizing speech with selected perceptual voice qualities - A case study with creaky voice

Frederik Rautenberg·Fritz Seebauer·Jana Wiechmann·Michael Kuhlmann·Petra Wagner·Reinhold Haeb-Umbach
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Abstract

The control of perceptual voice qualities in a text-to-speech (TTS) system is of interest for applications where unmanipu- lated and manipulated speech probes can serve to illustrate pho- netic concepts that are otherwise difficult to grasp. Here, we show that a TTS system, that is augmented with a global speaker attribute manipulation block based on normalizing flows1 , is capable of correctly manipulating the non-persistent, localized quality of creaky voice, thus avoiding the necessity of a, typi- cally unreliable, frame-wise creak predictor. Subjective listen- ing tests confirm successful creak manipulation at a slightly re- duced MOS score compared to the original recording.

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Frederik Rautenberg, Fritz Seebauer, Jana Wiechmann, Michael Kuhlmann, Petra Wagner, Reinhold Haeb-Umbach. 2025-11-07. Synthesizing speech with selected perceptual voice qualities - A case study with creaky voice. https://doi.org/10.21437/interspeech.2025-1443

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