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Christian Rollwage

3 accepted papers

2025

Low-Complexity Own Voice Reconstruction for Hearables with an In-Ear Microphone

ICASSP 2025accepted

Hearable devices, equipped with one or more microphones, are commonly used for speech communication. Here, we consider the scenario where a hearable is used to capture the user’s own voice in a noisy environment. In this scenario, own voice reconstruction (OVR) is essential for enhancing the quality…

Cited by 0SourceScholar
2024

Multi-Microphone Noise Data Augmentation for DNN-Based Own Voice Reconstruction for Hearables in Noisy Environments

ICASSP 2024accepted

Hearables with integrated microphones may offer communication benefits in noisy working environments, e.g. by transmitting the recorded own voice of the user. Systems aiming at reconstructing the clean and full-bandwidth own voice from noisy microphone recordings are often based on supervised learni…

Cited by 0SourceScholar
2023

Multilingual Query-by-Example Keyword Spotting with Metric Learning and Phoneme-to-Embedding Mapping

ICASSP 2023accepted

In this paper, we propose a multilingual query-by-example keyword spotting (KWS) system based on a residual neural network. The model is trained as a classifier on a multilingual keyword dataset extracted from Common Voice sentences and fine-tuned using circle loss. We demonstrate the generalization…

Cited by 0SourceScholar