Generalized multi-microphone spectral amplitude estimation based on correlated noise model
نویسندگان
چکیده
Enhancing speech contaminated by uncorrelated additive noise, when the degraded speech alone is available, has received much attention. In recent years many systems have used multi-microphone arrays for the task of speech enhancement and robust speech recognition. In this paper we introduce a generalized multi-microphone spectral amplitude estimation approach based on a model with non-negligible inter-microphone noise coherence. We demonstrate that our approach is a general foundation that can support any classical single-channel spectral estimation technique. We also present experimental results using data from the AVICAR database, spanning a wide range of noise conditions in a real moving car.
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