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Nikko Ström

2 accepted papers

2019

Frequency Domain Multi-channel Acoustic Modeling for Distant Speech Recognition

Minhua Wu, Ken'ichi Kumatani, Shiva Sundaram, Nikko Ström, Björn Hoffmeister
ICASSP 2019accepted

Conventional far-field automatic speech recognition (ASR) systems typically employ microphone array techniques for speech enhancement in order to improve robustness against noise or reverberation. However, such speech enhancement techniques do not always yield ASR accuracy improvement because the op…

Cited by 39Source ↗Scholar ↗
2019

Multi-geometry Spatial Acoustic Modeling for Distant Speech Recognition

Ken'ichi Kumatani, Minhua Wu, Shiva Sundaram, Nikko Ström, Björn Hoffmeister
ICASSP 2019accepted

The use of spatial information with multiple microphones can improve far-field automatic speech recognition (ASR) accuracy. However, conventional microphone array techniques degrade speech enhancement performance when there is an array geometry mismatch between design and test conditions. Moreover,…

Cited by 18Source ↗Scholar ↗