Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A robust DOA estimation method for a linear microphone array under
  reverberant and noisy environments   A robust method for linear array is proposed to address the difficulty of
direction-of-arrival (DOA) estimation in reverberant and noisy environments. A
direct-path dominance test based on the onset detection is utilized to extract
time-frequency bins containing the direct propagation of the speech. The
influence of the transient noise, which severely contaminates the onset test,
is mitigated by a proper transient noise determination scheme. Then for voice
features, a two-stage procedure is designed based on the extracted bins and an
effective dereverberation method, with robust but possibly biased estimation
from middle frequency bins followed by further refinement in higher frequency
bins. The proposed method effectively alleviates the estimation bias caused by
the linear arrangement of microphones, and has stable performance under noisy
and reverberant environments. Experimental evaluation using a 4-element
microphone array demonstrates the efficacy of the proposed method.

20
The categories of this paper are: acc-phys
22
The categories of this paper are: chao-dyn
23
The categories of this paper are: solv-int
33
The categories of this paper are: plasm-ph
24
The categories of this paper are: dg-ga
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
32
The categories of this paper are: atom-ph
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
0
The categories of this paper are: hep-ph
16
The categories of this paper are: stat