Thomas, SamuelGanapathy, SriramHermansky, Hynek2010-02-112010-02-112010-02-11200810.1007/978-3-540-85853-9_11https://infoscience.epfl.ch/handle/20.500.14299/47156Automatic speech recognition (ASR) systems, trained on speech signals from close-talking microphones, generally fail in recognizing far-field speech. In this paper, we present a Hilbert Envelope based feature extraction technique to alleviate the artifacts introduced by room reverberations. The proposed technique is based on modeling temporal envelopes of the speech signal in narrow sub-bands using Frequency Domain Linear Prediction (FDLP). ASR experiments on far-field speech using the proposed FDLP features show significant performance improvements when compared to other robust feature extraction techniques (average relative improvement of $43 \%$ in word error rate).text::conference output::conference proceedings::conference paper