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Updated: Jul 15, 2026

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Published on: April 9, 2021
Breathing noise elimination in through-water speech communication between divers
1Department of Electronic and Electrical Engineering, Loughborough University, United Kingdom. b.woodward1@lboro.ac.uk
Abstract:
Breathing noise and bubble noise are the main factors affecting the subjective quality of through-water speech signals in communications between divers wearing full-face masks or aural-nasal masks. Only breathing noise is considered here, which can be gated out by applying a combination of zero-crossing detection and energy measurements to noisy speech signals above predetermined threshold values. The signals are picked up by a microphone placed close to the diver's mouth in the air cavity of the mask. Results were obtained during diving trials with four different types of masks.
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