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Alexander H. Waibel

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#natural language process... Preprint Oct 2026

Loud and Clear: Dynamic Activation Steering for Improving Speech Intelligibility in Noisy Environments

Speech becomes less intelligible in noisy environments, and humans naturally adapt their voice to compensate. Inspired by this behavior, we investigate whether a text-to-speech (TTS) model can be guided to produce more intelligible speech using activation steering, without retraining. We focus on two characteristics of...

Ş. Akti, Alexander H. Waibel · 0 citations
#large language models Preprint Aug 2026

From Speech to Interaction: Analyzing Multimodal Systems in Cocktail-Party Scenarios

Humans have the remarkable ability to engage in spontaneous informal conversations and selectively attend to individual speakers while filtering out competing speech from nearby conversations. This"cocktail party"scenario still presents severe challenges to speech recognition systems. The CHiME-9 MCoRec task provides a...

Thai-Binh Nguyen, Zhaolin Li, Jan Niehues et al. · 0 citations

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