Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: End-to-End Far-Field Speech Recognition with Unified Dereverberation and
  Beamforming   Despite successful applications of end-to-end approaches in multi-channel
speech recognition, the performance still degrades severely when the speech is
corrupted by reverberation. In this paper, we integrate the dereverberation
module into the end-to-end multi-channel speech recognition system and explore
two different frontend architectures. First, a multi-source mask-based weighted
prediction error (WPE) module is incorporated in the frontend for
dereverberation. Second, another novel frontend architecture is proposed, which
extends the weighted power minimization distortionless response (WPD)
convolutional beamformer to perform simultaneous separation and
dereverberation. We derive a new formulation from the original WPD, which can
handle multi-source input, and replace eigenvalue decomposition with the matrix
inverse operation to make the back-propagation algorithm more stable. The above
two architectures are optimized in a fully end-to-end manner, only using the
speech recognition criterion. Experiments on both spatialized wsj1-2mix corpus
and REVERB show that our proposed model outperformed the conventional methods
in reverberant scenarios.

2
The categories of this paper are: math
16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom
18
The categories of this paper are: econ
20
The categories of this paper are: acc-phys
24
The categories of this paper are: dg-ga
35
The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph
4
The categories of this paper are: cond-mat
34
The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph
3
The categories of this paper are: physics
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas
25
The categories of this paper are: patt-sol
15
The categories of this paper are: nucl-ex